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Good heat resistance and flame resistance, HDT high, high temperature, mechanical strength is still high.
High operating temperature (continuous working temperature: 220 ℃, the maximum working temperature: 260 ℃).
Crystallization speed, the crystallinity of up to 60 ~ 65%.
Excellent dimensional stability, good electrical properties, melt viscosity is low, forming resistance.
Good chemical resistance, chemical resistance Excellent (except for concentrated nitric acid), and TEFLON considerable, and at 200 ℃, without any solvent soluble PPS.
Good electrical insulator.
High resistance to radiation.
Impact resistance, weather resistance, toughness and wear characteristics of friction less.
Will flash, mechanical properties affected by the mold temperature.
Synthesis: is diisocyanate, polyethylene glycol, and synthetic short-chain diol product obtained
Uses: Widely used in coatings, automotive, leather, furniture, fiber, construction and other industries and then
Synthesis: synthesis of a feed pre-polymer synthesis and performance comparison
Performance of a pre-polymer synthesis synthesis feed
Limited selectivity of the larger formula
Larger smaller temperature viscosity
Better processing of poor operational
Poor mechanical properties better
Lower manufacturing costs higher
No need for hardener
The characteristics of polyurethane
Traditional Chinese name is poly tunnel
High-performance non-crystalline thermoplastic engineering plastic, natural color as transparent amber, its various excellent features make it suitable for harsh environment applications and high performance standards, you can use a variety of conventional thermoplastic processing equipment, such as ︰ injection, pressure out, blowing molding, etc. processing.
Features Introduction
‧ good temperature resistance (glass transition temperature of 187 ° C, long-term use temperature of 160 ° C).
‧ good hydrolysis and chemical resistance.
‧ transparent, natural fire retardant (UL94-Vo, 3.2mm).
‧ good dimensional stability and excellent mechanical strength and rigidity and electrical performance.
‧ high purity (by USP Class VI, NSF certified).
Application Description
‧ food industry: food containers, films.
‧ Medical Industry: surgical instruments, dialysis membrane.
‧ Auto Industry: fuses, headlights and reflector.
‧ electronics industry: the chip tray, battery box.
High operating temperature (continuous working temperature: 310 ℃, the maximum working temperature: 500 ℃).
Maintain a high mechanical strength, hardness, creep resistance.
At 250 ℃, the following has an extremely low coefficient of thermal expansion.
Outstanding wear characteristics.
Low flammability.
Excellent insulator.
Quality, little bubbles will remain in the PBI material.
Ion has a high purity level.
High resistance to radiation.
High operating temperature (continuous working temperature: 288 ℃, the maximum working temperature: 480 ℃).
Maintain a high mechanical strength, hardness, creep resistance.
Sliding surface and wear resistance with good high.
This is a non-resin material filling the machine to provide the best physical characteristics and the best electrical insulation and heat insulation. Often used to make high temperature valve seat, seals, insulation and other pieces