Commonly used engineering plastics ─ electrical properties characteristic table

Features

electrical properties

generic common name heat and arc resistance dielectric breakdown strength Yuden rate Volume resistance
Test mode ASTM D495 D149 D150 D257
Units Sec   1KHz Ω,CM
PVC 氯乙烯 X 14 200 10的16次方
CPVC 氯乙烯 X 1.22-1.50 X 10的15次方
HDPE 聚乙烯 200-235 17.7-19.7 2.3-2.35 >10的16次方
UPE 乙烯鋼 X 50 2.2 10的13次方
PVDF 鐵氟龍2F 50-70 10.2 8.0 2乘10的14次方
PTFE 鐵氟龍4F >200 18.9 2.0 >10的13次方
PETP 聚酯膠 125 18.0 X 10的19次方
PP 聚丙烯 120 19.7-260 2.65 2乘10的16次方
AP-6 尼龍6 135 17.3-20.0 4.0-4.9 10的12次方-10的15次方
AP-66 尼龍66 130-140 15.1-18.5 3.9-4.5 10的14次方-10的15次方
MC MC尼龍 X 12-20 3-7 10的12次方-10的15次方
POM 塑膠鋼 240 18.3 3.8 10的14次方
ABS 丁二烯 47-87 12.2-16.1 2.4-4.75 10的16次方
PMMA 壓克力 X 17.7-21.6 3.0-3.5 >10的14次方
PC 聚碳酸酯 10-120 15-7 3.02 2乘10的11次方
PEEK 聚醚醚酮 4.8 190 3.4 5乘10的16次方
BAKELITE 電木 2-130 200-400 X 5乘10的7次方
FRP 玻璃纖維 120-180 300-400 X >10的13次方

PPS Polyphenylene Cheng S features:

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.

PU Urethane characteristics:

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

PSU poly tunnel features:

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.

PBI polystyrene and Mimi features:

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.

PI VESPEL polyimide features:

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