TPU composite fabrics and TPU fabric characteristics and application fields
TPU composite fabrics and TPU fabric characteristics and application areas
TPU features:
The main characteristics of tpu:
Wide range of hardness: By changing the ratio of each reaction component of TPU, products with different hardness can be obtained, and as the hardness increases
Increased, its products still maintain good elasticity and wear resistance.
High mechanical strength: TPU products have outstanding load-bearing capacity, impact resistance and shock absorption performance.
Outstanding cold resistance: TPU has a relatively low glass transition temperature, and it still maintains good elasticity, flexibility and other properties at minus 35 degrees
his physical properties.
Good processing performance: TPU can be processed using common thermoplastic material processing methods, such as injection molding, extrusion, calendering, etc.
At the same time, co-processing of TPU with certain polymer materials can produce polymer alloys with complementary properties. Oil, water and mold resistant.
Good recyclability.
Uses of tpu materials:
The uses of various TPU molded products:
Automotive parts, ball couplings; dust covers; pedal brakes; door lock strikers; bushings, leaf spring bushings; bearings; anti-vibration parts; interior
Exterior decorative parts; anti-skid chains, etc.
Machinery and industrial parts
Various gears; seals (mainly wear-resistant and oil-resistant); anti-vibration parts; mold needles; bushings; bearings, covers; connectors;
Rubber screen; printing rubber roller, etc.
Clothing accessories
Women’s bra straps, clothing elastic bands, etc.
Footwear
Softball shoes, baseball shoes, golf shoes, soccer shoe soles and forefoot women’s heels; ski boots; safety boots, high-end
Soles, etc.
Others
Self-positioning wheels; handles; watch straps and other pipes and hoses; high-pressure pipes; medical pipes; oil pressure pipes; pneumatic pipes; fuel pipes; coating pipes
Conveyor pipes; fire hoses, etc.
Film·Plate
Rotating belt (with certain stretching effect); air cushion; diaphragm; keyboard board; composite cloth, etc.
Wires and cables
Power communication cables; computer wiring; automobile wiring; exploration cables, etc.
TPU is thermoplastic polyurethane, which is divided into polyester type and polyether type. It has a wide hardness range (60ha-85hd), is wear-resistant, oil-resistant, and transparent
It is bright and has good elasticity. It is widely used in daily necessities, sporting goods, toys, decorative materials and other fields. Halogen-free flame retardant TPU can also be used
Replace soft PVC to meet the environmental protection requirements of more and more fields. There are many TPU brands and grades, and the quality varies. When choosing TPU
It is best to go through detailed evaluation and demonstration, otherwise you will not be able to obtain cost-effective results.
Through the above introduction, everyone has got an accurate answer to the question of what material tpu is. How can tpu be used in
It becomes soft under a certain heat, but can remain unchanged at normal temperature. It is used in shoes to play a stabilizing and supporting role. TPU is also called polyurethane rubber
Glue is a type of polyurethane. It is a relatively new product in China and is widely used in the shoemaking industry, pipes, etc.
Introduction to the characteristics and application development of polyurethane elastomer plastic
Introduction to the characteristics and application development of polyurethane elastomer plastic
With the development of society and the advancement of technology, the application of new materials has become more and more widespread. Since the early 1980s, polyurethane elastomers
After the transition from military use to dual use, and mainly civilian use, the variety and brands of products continued to increase, and the scale of production expanded day by day.
It plays an increasingly important role in various sectors of the national economy and in people’s daily necessities, food, housing and transportation. This article is intended from the perspective of practical application
Let’s start by talking about the advantages and disadvantages of polyurethane elastomers and the current status and prospects of their application and development.
1. The main advantages of polyurethane elastomer
1. The performance has a wide adjustable range. A number of physical and mechanical performance indicators can be improved in one place by selecting raw materials and adjusting formulas
Change within a certain range to meet users’ different requirements for product performance. For example, hardness is often an important factor that users attach to products
According to the key indicators, polyurethane elastomer can be made into soft printing rollers with a Shore A hardness of about 20, or a Shore D hardness of 70
The above hard rolled steel rubber roller is difficult to achieve with ordinary elastomer materials. Polyurethane elastomer is composed of many flexible segments and
Polar polymer materials composed of rigid segments. As the proportion of rigid segments increases and the density of polar groups increases, the original elastomer
Strength and hardness will increase accordingly.
2. Excellent wear resistance. Especially under working conditions in the presence of water, oil and other humidifying media, its wear resistance is often that of ordinary rubber
Several times to dozens of times that of the material. Although metal materials such as steel are very hard, they are not necessarily wear-resistant, such as the large ones in the Yellow River irrigation area
The metal orifice ring and protective ring of the water-passing parts of the water pump have been washed away by a large amount of sediment and will become severely worn and leaking within a few hundred hours.
The mouth ring and protective ring covered with polyurethane elastomer have not been worn after 1800 hours of continuous operation. Others such as rice hulling
Machine rubber rollers, vibrating screen plates for coal preparation, track and field tracks in sports fields, dynamic oil seals for cranes and forklifts, elevator wheels and dryers
Skate wheels, etc. are also where polyurethane elastomers are used. One thing that needs to be mentioned here is to improve the medium and low hardness polyurethane elastic
To improve the friction coefficient of physical parts and improve the wear resistance under load, a small amount of disulfide can be added to this type of polyurethane elastomer
Lubricants such as alumina, graphite or silicone oil.
3. Diverse processing methods and wide applicability. PolyurethaneThere are very few manufacturers, and currently only a few have mature equipment and technology. In fact, this technology is imported from Taiwan
improved. Currently, it is a domestic manufacturer specializing in inflatable life jackets, medical inflatable products, and massage air bag fabrics.
TPU (Thermoplastic polyurethanes), thermoplastic polyurethane, is a kind of oligomer polyol soft segment and
Linear block copolymer composed of diisocyanate-chain extender hard segments. TPU can be cast, blown, calendered or coated to make thin
Membrane has the advantages of good elasticity, strength, wear resistance, good cold resistance, environmental protection and non-toxicity.
There are two ways to make TPU composite fabrics. One is called post-pasting: it is first made into a TPU film and then glued to the fabric, and the other is called post-pasting
Thread lamination: Apply glue or no glue on the fabric, and directly drool TPU on the fabric to make TPU composite fabric or mesh fabric.
Generally, the factories that do post-pasting processing are not large in scale. There are many small factories in China, and most of them purchase TPU films from outside film factories.
It only completes the gluing and bonding process itself. The post-pasting process requires the TPU film to be subjected to high temperature and high pressure again. Improper process control will cause damage
The film is damaged and even has small holes.
TPU composite fabric is to use TPU film on various fabrics to form a composite material, which combines the characteristics of the two.
to a new type of fabric.
TPU composite fabrics are used for: inflatable life jackets, diving BC jackets, life rafts, inflatable boats, inflatable tents, and military
Inflatable self-expanding mattresses, massage airbags, medical anti-decubitus mattresses and professional waterproof backpacks.
This article is excerpted from [China Composite Fabrics Network www.tpu-ptfe.com]. Please indicate when reprinting.
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