Основные ресурсы сырье для домашних животных натуральный питомец FR543 FC51 RE19051 FR530 смола высокого качества гранулы

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Product Description




Polyethylene terephthalate (PET), with the chemical formula (C10H8O4)n, is synthesized by transesterification of dimethyl terephthalate with ethylene glycol or by esterification with terephthalic acid and ethylene glycol. Dihydroxyethyl phthalate is obtained by polycondensation. It is a crystalline saturated polyester. It is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface. It is a common resin in life and can be divided into APET, RPET and PETG.




It has excellent physical and mechanical properties in a wide temperature range, the long-term use temperature can reach 120 ° C,and the electrical insulation is excellent. Even at high temperature and high frequency, its electrical properties are still good,but the corona resistance is poor, and the Creep, fatigue resistance, friction resistance and dimensional stability are all good.




Specification


Property
Test Method
Typical Value
Unit
Melt Flow Rate
ISO 1133 @ 190°C/2.16 kg
1.6
g/10 min
Melt Flow Rate
ISO 1133 @ 210°C/2.16 kg
3.7
g/10 min
Density
ISO 1183
1.19
g/cm3
Water vapor transmission rate
ASTM E96 @ 40°C 90RH
1.3
Oxygen transmission rate
@ 20°C 0RH
0.0059
Oxygen transmission rate
@ 20°C 65RH
0.0079
Oxygen transmission rate
@ 20°C 85RH
0.03
Tensile Strength at Break
ISO 527 @ 23°C
34
MPa
Tensile modulus
ISO 527 @ 23°C
2700
MPa
Elongation at Break
ISO 527 @ 23°C
15
%
Flexural modulus
ISO 178 @ 23°C
4800
MPa
Simply Supported Beam Unnotched Impact
ISO 179
2
Kj/m2
Hardness
ISO 2023
90
Crystallization temperature
ISO 11357
158
Glass transition temperature
ISO 11357
57
Melting temperature
ISO 11357
183


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