Impact-resistant modified PET plastic and preparation method thereof

An impact-resistant modified plastic technology, applied in the field of plastic processing, can solve the problems of slow crystallization speed, limited wide application, poor impact performance, etc., and achieve the effects of improved impact resistance, increased mechanical strength, and high porosity

Pending Publication Date: 2021-02-05
袁明陵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When PET is used as an engineering plastic, its disadvantages are that the crystallization speed is too slow and the impact performance is poor at the commonly used processing mold temperature (70-110°C), which limits its wide application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]An impact-resistant modified PET plastic, including the following raw materials, in parts by weight: 65 parts of PET particles, 20 parts of fillers, 17 parts of EPDM rubber, 3 parts of nucleating agent, 5 parts of lubricant, and antioxidant Agent 0.3 parts.

[0025]The filler is mainly made of metal-organic framework materials, dopamine hydrochloride, and sodium oleate. Among them, the metal-organic framework material is any one of MIL-100 (Cr), MIL-100 (Fe), MIL-100 (Al), MIL-101 (Cr), CPO-27-Co, CPO-27-Ni Kind or more.

[0026]The nucleating agent is sodium benzoate; the lubricant is any one or more of sorbitol esters, fatty acid esters, glycerides, and glyceryl monopalmitate; the antioxidants are hindered phenolic antioxidants and phosphites Any one or more of antioxidants and hindered tertiary amine antioxidants.

[0027](1) Mix terephthalic acid and ethylene glycol at a mass ratio of 1.5:1, and add zinc oxide as a catalyst. The mass of the catalyst is 0.5% of the total mass of ter...

Embodiment 2

[0031]An impact-resistant modified PET plastic, including the following raw materials, in parts by weight: 68 parts of PET particles, 23 parts of fillers, 20 parts of EPDM rubber, 4 parts of nucleating agent, 6 parts of lubricant, and antioxidant Agent 0.4 parts.

[0032]The filler is mainly made of metal-organic framework materials, dopamine hydrochloride, and sodium oleate. Among them, the metal-organic framework material is any one of MIL-100 (Cr), MIL-100 (Fe), MIL-100 (Al), MIL-101 (Cr), CPO-27-Co, CPO-27-Ni Kind or more.

[0033]The nucleating agent is sodium benzoate; the lubricant is any one or more of sorbitol esters, fatty acid esters, glycerides, and glyceryl monopalmitate; the antioxidants are hindered phenolic antioxidants and phosphites Any one or more of antioxidants and hindered tertiary amine antioxidants.

[0034](1) Mix terephthalic acid and ethylene glycol at a mass ratio of 1.6:1, and add zinc oxide as a catalyst. The mass of the catalyst is 0.55% of the total mass of te...

Embodiment 3

[0038]An impact-resistant modified PET plastic, including the following raw materials, in parts by weight, 70 parts of PET particles, 25 parts of fillers, 23 parts of EPDM rubber, 5 parts of nucleating agent, 7 parts of lubricant, and antioxidant Agent 0.5 parts.

[0039]The filler is mainly made of metal-organic framework materials, dopamine hydrochloride, and sodium oleate. Among them, the metal-organic framework material is any one of MIL-100 (Cr), MIL-100 (Fe), MIL-100 (Al), MIL-101 (Cr), CPO-27-Co, CPO-27-Ni Kind or more.

[0040]The nucleating agent is sodium benzoate; the lubricant is any one or more of sorbitol esters, fatty acid esters, glycerides, and glyceryl monopalmitate; the antioxidants are hindered phenolic antioxidants and phosphites Any one or more of antioxidants and hindered tertiary amine antioxidants.

[0041](1) Mix terephthalic acid and ethylene glycol at a mass ratio of 1.8:1, and add zinc oxide as a catalyst. The mass of the catalyst is 0.7% of the total mass of ter...

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Abstract

The invention discloses an impact-resistant modified PET plastic and a preparation method thereof. The modified PET plastic is mainly prepared from the following raw materials in parts by weight: 65 to 70 parts of PET particles, 20 to 25 parts of filler, 17 to 23 parts of ethylene propylene diene monomer, 3 to 5 parts of nucleating agent, 5 to 7 parts of lubricant and 0.3 to 0.5 part of antioxidant. The preparation process comprises the steps that firstly, ethylene propylene diene monomer and PET particles are blent and grafted, and the impact resistance of the PET plastic is improved by utilizing the excellent toughness of the ethylene propylene diene monomer; then a metal-organic framework material is added to form a continuous and compact porous network structure in the PET plastic system, so that the impact resistance of the PET plastic is improved; the metal-organic framework material is pretreated to obtain the metal-organic framework material with the surface loaded with polydopamine, and the compatibility and dispersity of the metal-organic framework material and the plastic system are improved. The prepared modified PET plastic is high in impact resistance, low in odor andsimple in preparation process, and can be used for processing automobile parts, electrical parts and injection molding electrical products.

Description

Technical field[0001]The invention relates to the technical field of plastic processing, in particular to an impact-resistant modified PET plastic and a preparation method thereof.Background technique[0002]PET refers to polyethylene terephthalate, a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface; it is transesterified by dimethyl terephthalate and ethylene glycol or with p-benzene Dicarboxylic acid and ethylene glycol are esterified to synthesize bishydroxyethyl terephthalate first, and then undergo polycondensation reaction. The benzene ring and chain-like rigid structure in the PET molecule make the PET material have high strength, high rigidity, solvent resistance, heat resistance, excellent dimensional stability, and a wide range of raw materials, low cost, so it is widely used Fiber, film, electronic and electrical parts, machinery, automotive parts and other fields.[0003]When PET is used as an engineering plastic, its shortcomings are t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/16C08L87/00C08L79/04
CPCC08L67/02C08L2205/06C08L2205/24C08L23/16C08L87/00C08L79/04
Inventor 袁明陵
Owner 袁明陵
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