Advantages of the Teflon series products produced by Shenzhen Core-Tex

Advantages of the Teflon series products produced by Shenzhen Core-Tex

After the product has been coated with Teflon, the product will have the following characteristics:

1. Teflon coating with non-stick: Almost all materials do not adhere to the Teflon coating. Very thin films also show good non-stick properties.

2. Teflon coating with heat resistance: The Teflon coating has excellent heat resistance and low temperature resistance. It can withstand high temperature to 300 °C in a short time, and can be used continuously between 240 °C and 260 °C. It has remarkable thermal stability, it can work at freezing temperature without embrittlement, and does not melt at high temperatures.

3. Teflon coating with sliding resistance: Teflon coating has a lower coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15.

4. Teflon coating with moisture resistance: The surface of the Teflon coating is not water or oily, and it is not easy to get into the solution during production. If there is a small amount of dirt stuck, it can be removed by simple wiping. Short downtime, saving time and increasing productivity.

5. Teflon coating with wear resistance: The product has excellent wear resistance under high load. Under certain load, it has the dual advantages of wear resistance and non-sticking.

6. Teflon coating with corrosion resistance: Teflon is almost immune to drug erosion, it protects parts from any kind of chemical corrosion.

Analysis of main components of non-stick coatings in the production of Teflon

Analysis of main components of non-stick coatings in the production of Teflon

The basic film-forming materials for non-stick coatings in the production of Teflon are fluororesins and binders. The choice of fluororesin plays a crucial role in the non-stick properties of Teflon spray non-stick coatings.

There are many types of fluororesin sprayed on Teflon, among many fluororesins, polytetrafluoroethylene (PTFE) has the lowest friction coefficient, so PTFE is the preferred fluororesin for non-stick coatings. For better coating properties or ease of construction, Generally, a resin such as tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) or tetrafluoroethylene-hexafluoropropylene copolymer (FEP) is added on the basis of PTFE. Therefore, the fluororesin for non-stick coatings is generally a PTFE-based Teflon mixture.

Teflon PTFE has a regular structure, high crystallinity, and is almost insoluble in any solvent under normal temperature conditions; and the melting temperature is high, the melt viscosity is large, the fluidity of the coating is not good, which directly affects the non-stickiness of the Teflon-coated non-stick coating. For the above reasons, the fluororesin used in general non-stick coatings is a mixture of PTFE and other fluororesins, such as FEP, PFA, and the like. Compared with PTFE, FEP has the advantages of better melt flow and lower crystallinity, which results in a lower porosity of the formed coating, which is especially suitable for the hot and humid environment of baked food factories. PFA is very close to the chemical and thermal stability of PTFE, but PFA has higher toughness than PTFE and improves the wear resistance of the coating. The addition of PFA prevents the formation of large crystalline areas on the surface of the coating film.

Usually, adding more than 40% by weight of PFA has a significant effect. However, the miscibility of PTFE and FEP is limited, and a crystallization zone is formed in a portion where each polymer is separated, and a coating film defect sometimes occurs. Large pores and coating film defects are not allowed in a coating for preventing the substrate from being permeable to water or gas. These defects are to a large extent related to the composition of the fluoropolymer and may also be related to other ingredients in the coating formulation. The method and conditions of using the coating are also important in controlling the structure of the coating (such as cooling rate). The addition of copolymers such as FEP and PFA contributes to the formation of a coating having a lower degree of amorphousness than pure PTFE due to its low crystallinity. Therefore, the mixing of PTFE with FEP or PFA in Teflon non-stick coatings can improve the impermeability of the coating and prevent the formation of defects such as bubbles or corrosion

Can the PTFE series be recycled ? Safe recycling method for PTFE

Can the PTFE series be recycled ? Safe recycling method for PTFE

PTFE, Whose scientific name is PTFE, which is a high-performance material with heat resistance, chemical inertness, insulation stability and low friction. It is widely used as a frying pan coating, breathable sportswear materials, and electronic product insulators. There is no effective method for recycling, also recycling for this material, the conventional combustion treatment method not only easily damages the combustion equipment but also generates highly polluting gas.

The University of Bayreuth in Germany published a communique in 2015 saying that the school’s material processing scientists worked with the business community to develop a cost-effective and pollution-free method for recycling Teflon materials. This achievement will help solve the problem of Teflon waste disposal.

German researchers first decomposed this material into smaller molecules and used microwaves as a heating source to generate pyrolysis, resulting in a recovery of 93%. According to the researchers, another feature of the method is that it does not produce harmful by-products during the process and ensures safe recycling of Teflon.

According to the researchers, they will establish a small experimental plant in the next step to verify the industrial feasibility of this method.

Performance and application of Teflon series products

Performance and application of Teflon series products

PTFE is widely used as Corrosive materials, insulating materials, anti-stick coatings materials in industries such as atomic energy, national defense, aerospace, electronics, electrical, chemical, machinery, instrumentation, instrumentation, construction, textile, metal surface treatment, pharmaceutical, medical, food, metallurgical smelting, etc. , which has been treated as an irreplaceable product.

Teflon coatings have excellent comprehensive properties and can be used as engineering plastics for PTFE tubes, rods, strips, plates, films, etc.

Generally it is used with high performance requirements in corrosion-resistant pipes, containers, pumps, valves, and radar, high-frequency communication equipment, radio equipment, etc. .

Adding any filler in PTFE that can withstand the sintering temperature which can greatly improve its mechanical properties.

At the same time, it can maintain other excellent properties of PTFE.

Filled varieties materials include glass fiber, metal, metal oxide, graphite, molybdenum disulfide, carbon fiber, polyimide, EKONOL, etc. The wear resistance and ultimate PV value can be increased for more than 1000 times.

Painting on the surface of the bullet warhead can increase the penetrability of the bullet, allowing the bullet to shoot through the bulletproof vest.

Whether the FDA food grade certified Teflon mesh belt is harmless to the human body

Under normal circumstances, the products processed by Teflon spray are not harmful to the human body, because the raw materials processed by Teflon spray processing are subject to strict international standards before they can be put into the market. The use of certification is not to say that Teflon spray processing is not harmful to the human body. If you do not operate properly, for example, the mold you spray with Teflon may be in the process of moving, moving, lifting, lifting. Drops cause personal injury. Therefore, we recommend paying attention to production safety during the Teflon spraying process. Teflon spraying itself is not harmful,but you need to avoid accidental injury during operation.

What is the difference between Teflon spray processing and Iron-Teflon spray processing?

Teflon and Iron-Teflon are no different, just different names, one is a big name, one is a small name, if you distinguish the relationship between them from the industry, Teflon spraying processing is a general term for this spraying process. Others are subdivided. high-performance special Teflon coatings are fluorine coatings based on polytetrafluoroethylene as the matrix resin. The English name is Teflon. Because of the pronunciation, it is often called Teflon, Tiefulong, Tefulong, Tefulon, etc. (all Teflon transliteration) such as Teflon spray processing, Teflon spray processing TEFLON spray processing, etc. all are Teflon spray processing segmentation. Teflon (Teflon) coating is a unique high-performance coating that combines heat resistance, chemical inertness and excellent insulation stability and low friction. It has the combined advantages that other coatings cannot compete. Sex makes it suitable for use on almost any shape and size.

After Teflon spray processing, it has the following characteristics:

1. Non-stick: almost all substances are not bonded to the Teflon coating. Very thin films also show good non-stick properties.
2. Heat resistance: Teflon coating film has excellent heat resistance and low temperature resistance. It can withstand high temperature to 300 °C in a short time. It can be used continuously between 240 °C and 260 °C. It has remarkable thermal stability. It can work at freezing temperature without embrittlement and does not melt at high temperature.
3, slidability: Teflon coating has a lower coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15.
4. Moisture resistance: The surface of Teflon coating film is not stained with water and oil. It is not easy to get into the solution during production operation. If there is a small amount of dirt, it can be removed by simple wiping. Short downtime, saving time and increasing productivity.
5, wear resistance: under high load, Teflon spray processing has excellent wear resistance. Under certain load, it has the dual advantages of wear resistance and non-sticking.
6. Corrosion resistance: Teflon spray processing is almost free of chemical attack and can protect parts from any kind of chemical corrosion.

Why does the Teflon mesh belt get FDA food certification? Is the Teflon mesh belt safe for food baking?

Now Teflon mesh belt has been used more and more widely in the food baking industry. It can be used as a conveyor belt to dry food, such as dried chrysanthemum, dehydrated vegetables, soybeans, peanuts, wheat, etc. The platter is baked with mooncakes, biscuits, taro, pies, etc., and the application is more commonly used as a drying conveyor belt.

Why is the Teflon mesh belt suitable for food baking? Why can Teflon mesh belts improve the productivity, product quality and cost reduction of food baking companies?

  1. Teflon mesh belt has unparalleled high temperature resistance. Although the high temperature resistant ofteflon mesh belt is higher than the stainless steel mesh belt , the stainless steel mesh belt is easy to rust and can easily damage food.
  2. Teflon mesh has strong non-stick and anti-stick effect. It is not easy to stick to flour, cooking oil, starch, sugar, and it is easy to clean.
  3. The Teflon mesh belt itself has extremely high tensile strength and is resistant to fatigue and breakage. It is more important that the use in harsh environments does not affect its physical and chemical properties.
  4. Teflon mesh belts do not release gases and other substances that are toxic to humans. Teflon non-stick pans are a good example.
  5. The Teflon mesh belt has a long service life, which can greatly reduce the production investment of the enterprise, and the food enterprise can repair the damaged mesh belt by itself.

Related terms in this article

Mesh belt

Mesh belt is a method of using static friction to drive a machine that transports materials in a continuous manner. It can be used to form a material conveying process on a certain conveying line from the initial feeding point to the final discharging point. It can carry out the transportation of broken materials as well as the transportation of individual items. In addition to pure material handling, it can also be combined with the requirements of the process in the production process of various industrial enterprises to form a rhythmic flow line. The mesh belt materials used in different environments are also different, such as carbon steel, galvanized iron wire, spring steel and so on. The choice of working environment determines the choice of materials. Therefore, metal mesh belts are widely used in modern industrial enterprises. It is an indispensable and important accessory in automatic devices and modern automated assembly lines in various industries.

Mesh belt type

  1. According to the shape: crankshaft mesh belt, straight shaft mesh belt, flat wire mesh belt, B mesh belt, herringbone mesh belt, metal mesh belt, chain rod mesh belt, eye mesh belt, chain Chip mesh belt, chain mesh belt, U-shaped chain mesh belt, chain plate mesh belt, baffle mesh belt, triangular barrier mesh belt, rod mesh belt, flanged mesh belt, spherical mesh belt , belt type mesh belt, plus plate type mesh belt, single rotary mesh belt, diamond mesh belt and so on.

2, according to the use of: food mesh belt, conveyor belt, high temperature mesh belt, transmission mesh belt, etc.

3, according to the material points: stainless steel mesh belt, metal mesh belt and so on.

How can Teflon tape be safely stored and how to use it?

How to store, transport and use Teflon tape, Teflon adhesive tape, PTFE tape, pure Teflon tape and other tapes during daily use and transportation?

1. Teflon tape should be stored in the warehouse to avoid sun and rain. It is forbidden to contact with the organic solvent of acid and alkali oil, keep it clean and dry at the room temperature (-15℃ to 40℃)away from the device.

2. Teflon tape should be placed in rolls without folding. It should be flipped once a quarter.

3. Use the crane to load and discharge the conveyor belt, and use the rigging with the beam to hoist to avoid the damage of the belt edge. Do not load and discharge arbitrarily.

4. The type and specification of Teflon tape should be reasonably chose with the needs.

5. Do not connect (match) tapes of different varieties, different specifications, strength, and layers of fabrics.

6. Teflon conveyor belt joints are preferably hot vulcanized to improve reliability and maintain high effective strength.

7. The diameter of the conveyor roller and the diameter of the smaller conveyor pulley should comply with the relevant regulations.

8. Don’t let the tape serpentuate, keep the roller, the vertical roller is flexible, and the tensionshould be moderate.

9. Avoid wear of the tape in case of the conveyor is equipped with baffle and cleaning device.

10. Cleanliness is the basic condition for the good operation of the tape. Extraneous substances can affect the belt eccentricity, tension, and even breakage.

11. If there is damage during using the Teflon tape, find the cause and repair in time to avoid the occurrence of adverse consequences.

Related terms in this article

Tape

Richard Gurley Drew applied in the United Kingdom and the United States that he developed a very light, pressure-matching adhesive, it was not sticky enough at the beginning, so Drew was told: “Get this tape back to your Scottish boss and ask them to put more adhesive!” (“Scotland” means “stingy”. But during the Great Depression, people had found hundreds of uses for this type of tape.

Why the Teflon conveyor belt is deflected?

Teflon conveyor belt is one of the key equipment for belt conveyors, So whether it can run smoothly is related to the operation of the entire conveyor.

Once the Teflon conveyor belt is deflected, it will accelerate the wear of the belt edge, shorten the service life, and seriously affect the production progress.

In addition to routine maintenance, installation accuracy is an important factor affecting the smooth operation of Teflon conveyor belts. Installation accuracy is mainly in conveyor belt and conveyor debugging of two aspects .

How do we judge which problem is caused by the deviation caused by the installation accuracy?

First, check whether the front and rear rollers of the conveyor are on the same center line and confirm whether they are parallel to each other;

Secondly, check whether the perimeter and diagonal of the two sides of the Teflon conveyor belt are equal.

When the Teflon conveyor belt is deflected to one side, the conveyor belt can be turned in the same direction. If the deviation is still to the original side, it is necessary to focus on checking the conveyor problem; if it is to the other side, it needs to pay attention to the situation of the Teflon conveyor belt.

Related terms in this article

Conveyor belt

Product structure: This product is made of multi-layer hanging cotton canvas as the skeleton, and the surface is covered with good rubber material and vulcanized. Conveyor belt series products include ordinary cotton canvas conveyor belt and nylon (NN) conveyor belt (divided into NN-100 type, NN-150 type, NN-200 type, NN-250 type, NN-300 type, NN-350 type, NN-400 type), polyester (EP) belt (divided into EP-100 type, EP-150 type, EP-200 type, EP-250 type, EP-300 type, EP-350 type, EP-400 type) , large dip angle (corrugated rib) conveyor belt, skirt partition conveyor belt, endless conveyor belt, pattern conveyor belt(as?delivery?and?distribution of materials?with different?angle?sizes, shapes?and?height?requirements?are also?different patterns). Commonly used pattern conveyor belts such as: chevron pattern conveyor belt (herringbone conveyor belt including upper convex, lower concave herringbone conveyor belt), figure-8 shaped pattern conveyor belt, fishbone pattern conveyor belt, U-shaped pattern conveyor belt, cylindrical Pattern conveyor belt, pitting pattern conveyor belt, grass pattern conveyor belt, or according to user requirements), water stop belt, PVC or PVG whole core flame retardant belt; and can provide a variety of special performance conveyor belt (general Flame-retardant conveyor belt, heat-resistant conveyor belt, burning-resistant conveyor belt, high wear-resistant conveyor belt, acid-resistant conveyor belt, alkali-resistant conveyor belt, cold-resistant conveyor belt, oil-resistant conveyor belt, high-temperature conveyor belt, high-strength conveyor belt and food Conveyor belt, Teflon conveyor belt, stainless steel conveyor belt, chain conveyor belt, conveyor belt).

Teflon

Teflon was discovered in 1938 by chemist Dr. Roy J. Plunkett at DuPont’s Jackson Laboratory in New Jersey, USA: When he tried to make new chlorofluorocarbon refrigerants Tetrafluoroethylene is polymerized in a high pressure storage vessel (iron on the inner wall of the vessel becomes a catalyst for polymerization). DuPont obtained its patent in 1941 and in 1944 registered its trademark under the name “Teflon”. Subsequently, DuPont developed a series of products in addition to Teflon? PTFE resin, including Teflon; AF (amorphous fluoropolymer), Teflon; FEP (fluorinated ethylene propylene resin), Teflon; FFR (fluorine polymerization) Foam resin), Teflon; NXT (fluoropolymer resin), Teflon; PFA (perfluoroalkoxy resin) and so on. In 1954, Colette, the wife of French engineer Marc Gregoire, had a whimsy. She thought that if the non-stick material “Teflon” that her husband used to apply on the fishing line which to prevent knotting could be used on the frying pan, the effect must be good. The “non-stick” that saved countless modern housewives was born.

Conveyor

According to the operation mode, the conveyor can be divided into: belt conveyor, screw conveyor, bucket elevator, roller conveyor, metering conveyor, chain conveyor, mesh belt conveyor and chain conveyor.

Corefrp high temperature PTFE coated fiberglass cloth

Corefrp High temperature PTFE coated fiberglass cloth is dimensionally stable, the elongation coefficient is less than 5‰; the continuous working temperature is -70-280°C; small friction coefficient; good insulation; dielectric constant 2.60, dielectric loss tangent less than 0.0025; easy to clean all kinds of oil, stains or other attachments; resistant to strong acid, strong alkali, corrosion; no burning, anti-aging, etc.

Application range of High temperature PTFE coated fiberglass cloth

1. Gasket for heating food, baking mat, microwave oven gasket;

2. Anti-adhesive lining, gasket, mask, etc.;

3. According to different specifications, varnished cloth can be used for conveyor belts of various drying machines, adhesive tapes, sealing tapes, etc.

4. It is used for corrosion protection of various petrochemical pipelines, electrical and electronic insulation, high temperature-resistant cladding materials, environmental desulfurization of power plant exhaust gas, etc.

Related terms in this article

Gasket

Gasket is a mechanical seal between two objects, usually used to prevent pressure, corrosion, and natural thermal expansion and contraction between the two objects. Since the machined surface is not perfect, the gasket can be used to fill the irregularities. The gasket is usually made of a sheet material such as mat paper, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass or a plastic polymer such as polytetrafluoroethylene. Gaskets for specific applications may contain asbestos. Washer is a hole (usually in the middle) of a thin plate (usually round) that is typically a load thread fastener for dispensing. Other uses are as spacers, springs (Belleville gaskets, wave gaskets), wear pads, pre-display devices, and lock devices. Rubber gaskets are also used in faucets (valves) to cut off flowing liquids or gases. Rubber or silicon gaskets can also be used to reduce fan vibration. Usually the outer diameter of the gasket is about twice the inner diameter.

Varnished cloth

First paint the background with oil paint, then add a few layers of tung oil, polish and paint all kinds of patterns with colored paint, and finally cover with a layer of oil. Specifications are generally 2x 3 meters(Equal to Kang size); It has both practical value and beautification. In North of China, fire Kang, with ramming mats, quilts, wool felts or blankets, and varnishes to protect the carpet is very common. This was popular in the 1970s and 1980s. Mostly handmade by folk artists.

What are Teflon mesh belt and UV machine mesh belt?

The UV machine mesh belt is used in the UV machine. The Teflon mesh belt is made of mesh glass fiber or Kevlar as a base material, which is coated the excellent high quality Teflon resin. The commonalities are mesh, both for conveyor.

The UV mesh belt can be a Teflon mesh belt or a stainless steel mesh belt, and the Teflon mesh belt is one of UV mesh belt. Therefore, the UV mesh belt is not just a Teflon mesh belt.

There are UV-resistant and anti UV-resistant Teflon mesh belt. Anti UV-resistant Teflon mesh beltTeflon cannot be used in UV machines, so Teflon mesh belts are not just UV mesh belts.

Therefopre, the UV-resistant Teflon mesh belt is the UV mesh belt.

There are two unique properties of Teflon mesh belt that the Teflon mesh belt must be used for UV curing machine.

1. Firstly, the high temperature resistance. The Teflon mesh belt can work from -70℃ to 260℃. For the UV curing machine, the curing temperature is up to 90℃, and the Teflon mesh belt can resisit the temperature.

2. Non stick. Teflon is known that hardly sticks to any sticky substances, and its acid and alkali corrosion resistance, wear resistance are excellent. In the use of UV curing machine, the ultraviolet light will cause the resin to crosslink, and the binder will be changed from liquid to solid, and the smaller components will be bonded. Due to the non-stick perporty of the Teflon mesh belt, which is the best material for UV conveyor belts.

Related terms in this article

Mesh belt

Mesh belt, which is the static friction to drive a machine that transports materials in continuous. It can be used to form a material conveying process on a certain conveying line from the initial feeding point to the final discharging point. It can carry out the bulk materials as well as the individual material. In addition to the converyor of the material, it can also be combined with the requirements of the process in the production process of various industrial enterprises to form a flow line. The materials of mesh belt used in different environments are also different, such as carbon steel, galvanized iron wire, spring steel and so on. The different working environment , the different material of mesh belt will be. Therefore, metal mesh belts are widely used in modern industrial enterprises, which is an indispensable and important accessory in automatic devices and modern automated assembly lines in various industries.
The types of mesh belts.
1. Shape: crankshaft mesh belt, straight shaft mesh belt, flat wire mesh belt, B mesh belt, herringbone mesh belt, metal mesh belt, chain rod mesh belt, eye mesh belt, chain Chip mesh belt, chain mesh belt, U-shaped chain mesh belt, chain plate mesh belt, baffle mesh belt, triangular barrier mesh belt, rod mesh belt, flanged mesh belt, spherical mesh belt , belt type mesh belt, plus plate type mesh belt, single rotary mesh belt, diamond mesh belt and so on.
2. Purpose: food mesh belt, conveyor belt, high temperature mesh belt, transmission mesh belt, etc.
3. Material: stainless steel mesh belt, metal mesh belt, etc.

Teflon

?PTFE was discovered in 1938 by chemist Dr. Roy J. Plunkett at DuPont’s Jackson Laboratory in New Jersey, USA. When he tried to make a new chlorofluorocarbon refrigerant, tetrafluoroethylene was polymerized in a high-pressure storage vessel (iron of the inner wall became catalyst for polymerization). DuPont obtained its patent in 1941 and in 1944 registered its trademark under the name “Teflon”. Subsequently, DuPont developed a series of products, including Teflon; AF (amorphous fluoropolymer), Teflon; FEP (fluorinated ethylene propylene resin), Teflon; FFR (fluorine polymerization) Foam resin), Teflon; NXT (fluoropolymer resin), Teflon; PFA (perfluoroalkoxy resin), etc. In 1954, the French engineer Marc Gregoire’s wife, Colette, had a whimsy that Teflon, the non-stick material that her husband used to fishing line to prevent knotting, which could be used for the frying pan, the effect must be good. The “non-stick” pan was born.