High-strength low-density flame-retardant modified PET (polyethylene glycol terephthalate) material and its preparation method

A modification and poly-pair technology, applied in the field of modified polyethylene terephthalate material and its preparation, can solve the problems of safety restriction, slow crystallization rate, insufficient strength to meet high-strength application requirements, etc. To achieve the effect of low comprehensive cost and low price

Inactive Publication Date: 2014-06-11
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, PET also has disadvantages. Its crystallization rate is slow, its strength is not enough to meet the requirements of high-strength applications, and its density is high, which is about 30% higher than other engineering plastics. It does not have flame retardant effect.
It is constrained by safety in practical application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 35 parts of PET, 0.3 part of silicone, 0.1 part of antioxidant 1010, 0.2 part of antioxidant 1076, 0.2 part of nucleating agent Surlyn, 0.6 part of coupling agent KH-570, 6 parts of EP type brominated epoxy resin ( The molecular weight is 8000) and 4 parts of antimony trioxide (the weight ratio of brominated epoxy resin to antimony trioxide is 3:2) is mixed at high speed with a high-speed mixer, the speed is 800rpm, room temperature, and the mixing time is 6min; The mixture is poured into the main feeding port of the screw extruder, and then 45 parts of continuous glass fibers (12 μm in diameter) are added through the glass fiber inlet at the rear end, and 10 parts of hollow glass microspheres (average density is 0.5 g / cm 3 ) through the side feeding port, control the temperature of the extruder at 240-260 ° C, and cut the mixture into pellets through the twin-screw extruder to obtain the product modified polyethylene terephthalate. Product related The performance test ...

Embodiment 2

[0036] 40 parts of PET, 0.3 parts of lubricant PETS, 0.2 parts of antioxidant 1010, 0.4 parts of antioxidant 1076, 0.5 parts of nucleating agent Surlyn, 0.7 parts of coupling agent KH-570, 5 parts of EP type brominated epoxy resin (Molecular weight is 10000) and 5 parts of antimony trioxide (the weight ratio of brominated epoxy resin to antimony trioxide is 1:1) is mixed at high speed with a high-speed mixer, the speed is 1000rpm, room temperature, and the mixing time is 3min; The mixture is poured into the main feeding port of the screw extruder, and then 30 parts of continuous glass fibers (12 μm in diameter) are added through the glass fiber inlet at the rear end, and 20 parts of hollow glass microspheres (average density is 0.3 g / cm 3 ) through the side feeding port, control the temperature of the extruder at 240-260 ° C, and cut the mixture into pellets through the twin-screw extruder to obtain the product modified polyethylene terephthalate. Product related The performan...

Embodiment 3

[0038] 40 parts of PET, 0.3 parts of stearyl alcohol, 0.5 parts of antioxidant P262, 0.7 parts of nucleating agent Surlyn, 0.8 parts of coupling agent KH-570, 4 parts of EP type brominated epoxy resin (molecular weight is 20000) and 6 2 parts of antimony trioxide (the weight ratio of brominated epoxy resin to antimony trioxide is 2:3) is mixed at high speed with a high-speed mixer, the speed is 800rpm, at room temperature, and the mixing time is 6min; the obtained mixture is poured into the screw extruder Exit the main feeding port of the machine, then add 35 parts of continuous glass fiber (12 μm in diameter) through the glass fiber inlet at the rear end, and 15 parts of hollow glass microspheres (average density of 0.6 g / cm 3 ) through the side feeding port, control the temperature of the extruder at 240-260 ° C, and cut the mixture into pellets through the twin-screw extruder to obtain the product modified polyethylene terephthalate. Product related The performance test is ...

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Abstract

The invention belongs to the technical field of high polymer materials, and relates to a modified polyethylene glycol terephthalate (PET) material and its preparation method. The material comprises the following components by weight: 40-50 parts of PET, 30-40 parts of glass fiber, 5-20 parts of glass bead, 0.3-0.6 part of a lubricant, 0.3-0.6 part of an antioxidant, 0.6-1 part of a coupling agent, 0.2-0.7 part of a nucleation agent, 4-6 parts of brominated epoxy resin and 4-6 parts of antimony trioxide. The material has the advantages of high strength, low density, flame retardance and the like, the cost is reduced greatly, and the scope of application is expanded greatly.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a modified polyethylene terephthalate material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is an engineering plastic with excellent comprehensive properties. PET has excellent mechanical properties. High rigidity. High hardness, low water absorption, good dimensional stability. Good toughness, impact resistance, friction resistance and creep resistance. Good chemical resistance, soluble in cresol, concentrated sulfuric acid, nitrobenzene, trichloroacetic acid, chlorophenol, insoluble in methanol, ethanol, acetone, alkanes, etc. It itself is mainly blown into various bottles, used as containers, and spun into fibers. As an engineering plastic, it can replace nylon and polybutylene terephthalate in the electronic appliances and automobile industries. [0003] However, PET also has disadvantages. Its crystallization ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L63/00C08K13/04C08K7/28C08K7/14C08K3/22B29C47/92B29B7/72B29C48/92
CPCB29B7/726B29B7/728B29B9/14B29C48/04B29C48/40B29C48/92B29C2948/92619B29C2948/92704B29C2948/92761B29C2948/92828B29C2948/9298
Inventor 孙鹏
Owner HEFEI GENIUS NEW MATERIALS
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