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PET

Polyethylene terephthalate (PET)
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Category
Plastic
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产品描述

Overview

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      PET is a polyester series, semi-crystalline material (but there are also amorphous). The polycondensate of terephthalic acid and ethylene glycol, referred to as PET. It has better mechanical properties, heat resistance and chemical resistance than PBT, and has strict requirements on strength, stiffness, dimensional stability, toughness and electrical properties.

      The relative density of pure resin is 1.33, the glass transition temperature is 68-80℃, the melting point is 250-255℃, the long-term use temperature of reinforced resin is 155℃, and the decomposition temperature is >330℃

Characteristic

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Advantage

◆ It also has better dimensional stability in the range of 155-220℃
◆ Excellent electrical properties
◆ The water absorption rate is low, and there is almost no change in electrical properties caused by water absorption after molding.
◆ Higher strength and rigidity than PBT
◆ Good surface gloss
◆ Creep resistance

Disadvantage

◆ Easy to hydrolyze when used in hot water above 50℃ for a long time
◆ Poor acid resistance

Variety

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● Glass fiber reinforced

● Glass fiber flame retardant reinforcement

● Glass fiber/mineral reinforcement

● Low warpage

● Toughening

  

Typical physical data

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Properties
Density
Deflection Temperature (1.8MPa)
Deflection Temperature (0.45MPa)
Charpy notched impact strength
Flammability
RTI (Elec/Imp/Str)
Unit (ISO) PET-GF45 PET-GF30(FR) PET-(MD+GF)45
g/cm3 1.7 1.68 1.85
224 225 200
- 243 240
KJ/m2 7.7 10 4
Class HB V-0 V-0
155 155 155

Application

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○ Solenoid coil
○ Electrical sensor housing
○ Motor parts
○ Bobbin
○ switch
○ Light socket
○ Automotive ignition components

○ High temperature spool
○ Fuse box housing
○ Terminal block
○ Oven door handle
○ Electric iron
○ Microwave and juicer hood

Partner

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We could not find any corresponding parameters, please add them to the properties table

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