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High-fire-retardant PPO/ECTFE (polyphenylene oxide/ethylene-chlorotrifluoroethylene) copolymer alloy prepared through in-situ method and preparation method thereof

A technology of chlorotrifluoroethylene and polyphenylene ether, applied in the field of high flame-retardant polyphenylene ether/ethylene-chlorotrifluoroethylene copolymer alloy and its preparation, achieving good comprehensive performance, wide application fields, and low toxicity

Active Publication Date: 2014-06-25
SINOPLAST NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the use of ethylene-chlorotrifluoroethylene copolymers in the flame retardancy of polyphenylene ethers.

Method used

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  • High-fire-retardant PPO/ECTFE (polyphenylene oxide/ethylene-chlorotrifluoroethylene) copolymer alloy prepared through in-situ method and preparation method thereof
  • High-fire-retardant PPO/ECTFE (polyphenylene oxide/ethylene-chlorotrifluoroethylene) copolymer alloy prepared through in-situ method and preparation method thereof
  • High-fire-retardant PPO/ECTFE (polyphenylene oxide/ethylene-chlorotrifluoroethylene) copolymer alloy prepared through in-situ method and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A kind of highly flame-retardant PPO / ECTFE alloy, its raw material composition and weight parts are:

[0060] PPOs

95 copies

ECTFE

5 copies

L-101

0.1 part

GMA

1 copy

[0061] The preparation method of above-mentioned high flame-retardant PPO / ECTFE alloy comprises the following steps:

[0062] (1) Put PPO and ECTFE in a vacuum oven, dry PPO at 90°C for 8 hours, and dry ECTFE at 80°C for 5 hours;

[0063] (2) Mix L-101 with glycidyl methacrylate to obtain a solution for later use;

[0064] (3) Mix PPO and ECTFE evenly, and then add the solution obtained in step (2) to obtain a premix;

[0065] (4) Put the premixed material obtained in step (3) into a parallel twin-screw extruder to melt and extrude, and granulate. The process parameters are as follows: The screw speed of the parallel twin-screw extruder is 120r / min. The temperature is 170°C, the temperature in the second zone is 240°C, the temperature in the third zo...

Embodiment 2

[0068] A kind of highly flame-retardant PPO / ECTFE alloy, its raw material composition and weight parts are:

[0069] PPOs

90 copies

ECTFE

10 copies

L-101

0.25 parts

GMA

2.5 servings

[0070] The preparation method of above-mentioned high flame-retardant PPO / ECTFE alloy comprises the following steps:

[0071] (1) Put PPO and ECTFE in a vacuum oven, dry PPO at 90°C for 8 hours, and dry ECTFE at 80°C for 5 hours;

[0072] (2) Mix L-101 with glycidyl methacrylate to obtain a solution for later use;

[0073] (3) Mix PPO and ECTFE evenly, and then add the solution obtained in step (2) to obtain a premix;

[0074] (4) Put the premixed material obtained in step (3) into a parallel twin-screw extruder to melt and extrude, and granulate. The process parameters are as follows: The screw speed of the parallel twin-screw extruder is 120r / min. The temperature is 170°C, the temperature in the second zone is 240°C, the temperature in the...

Embodiment 3

[0077] A kind of highly flame-retardant PPO / ECTFE alloy, its raw material composition and weight parts are:

[0078] PPOs

85 copies

ECTFE

15 copies

DCP

0.3 parts

GMA

3 copies

[0079] The preparation method of above-mentioned high flame-retardant PPO / ECTFE alloy comprises the following steps:

[0080] (1) Put PPO and ECTFE in a vacuum oven, dry PPO at 90°C for 8 hours, and dry ECTFE at 80°C for 5 hours;

[0081] (2) Mix DCP and glycidyl methacrylate to obtain a solution for later use;

[0082] (3) Mix PPO and ECTFE evenly, and then add the solution obtained in step (2) to obtain a premix;

[0083] (4) Put the premixed material obtained in step (3) into a parallel twin-screw extruder to melt and extrude, and granulate. The process parameters are as follows: The screw speed of the parallel twin-screw extruder is 120r / min. The temperature is 170°C, the temperature in the second zone is 240°C, the temperature in the third zo...

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Abstract

The invention discloses a high-fire-retardant PPO / ECTFE (polyphenylene oxide / ethylene-chlorotrifluoroethylene) copolymer alloy prepared through an in-situ method and a preparation method thereof. The alloy comprises the following raw materials in parts by weight: 65-95 parts of PPO, 5-35 parts of ECTFE copolymer, 0.01-1 part of initiator and 0.1-10 parts of glycidyl methacrylate, wherein the sum of the parts by weight of the PPO and the parts by weight of the ECTFE copolymer is 100 parts. The PPO / ECTFE alloy has excellent fire retardance and simultaneously has high tensile strength and impact strength, thereby having wide application values in the fields such as chemical engineering, electronics, electric appliances and the like.

Description

technical field [0001] The invention belongs to the field of polymer alloy materials, in particular to an alloy of highly flame-retardant polyphenylene ether / ethylene-chlorotrifluoroethylene copolymer and a preparation method thereof. Background technique [0002] Polyphenylene ether, referred to as PPO, is produced by oxidative coupling reaction of 2,6-dimethylphenol monomer. It is one of the most widely used engineering plastics, and its output occupies the fourth place among engineering plastics. PPO is a crystalline polymer with high heat resistance and the smallest linear expansion coefficient among all plastics; it also has high impact strength, high modulus, low creep, and still has good impact performance at absolute zero; excellent Excellent dimensional stability, electrical insulation; excellent chemical stability, water resistance; good flame retardancy, non-melting drop, self-extinguishing. Therefore, PPO is widely used in electrical components, medical equipmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/06C08F255/02C08F259/08C08F220/32C08F4/34B29B13/06B29B9/06
Inventor 朱怀才其他发明人请求不公开姓名
Owner SINOPLAST NEW MATERIAL
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