High-temperature-resistant recycled PET plastic particle

A technology of plastic particles and high temperature resistance, applied in the fields of organic chemistry, compounds of Group 5/15 elements of the periodic table, chemical instruments and methods, etc. problem, to achieve the effect of expanding the scope of application

Inactive Publication Date: 2022-02-08
界首市金吴再生资源利用有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Recycled plastics are an effective way to solve the pollution caused by plastics, but recycled plastics have disadvantages such as low strength, no toughness, low gloss, poor thermal oxygen stability, etc. During storage, processing and daily use, they will be exposed to heat, light and Oxygen and other effects are prone to aging and

Method used

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  • High-temperature-resistant recycled PET plastic particle
  • High-temperature-resistant recycled PET plastic particle
  • High-temperature-resistant recycled PET plastic particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation aids:

[0037] Step S21, adding p-hydroxyacetophenone and p-hydroxybenzaldehyde into absolute ethanol, then adding hydrochloric acid solution, stirring and reacting for 12 hours at a temperature of 20°C, and then heating under reflux for 3 hours. After the reaction, the obtained The reaction solution was mixed with deionized water, filtered, and dried to obtain intermediate a; wherein, the mass fraction of hydrochloric acid solution was 37%, and the molar ratio of p-hydroxyacetophenone and p-hydroxybenzaldehyde was 1:1; The dosage ratio of ketone, absolute ethanol and hydrochloric acid solution is 1g: 30mL: 0.2mL;

[0038] Step S22, mix intermediate a, epichlorohydrin and benzyltriethylammonium chloride, stir and react at 80°C for 4h, after the reaction, cool down to 60°C, then add sodium hydroxide, stir Reaction 4h, after reaction finishes, cool to room temperature, decompression concentration removes solvent, obtains polymer b; Wherein, the mass ratio of ...

Embodiment 2

[0041] Prepare enhancer:

[0042]Step S11: Heat the glass fiber at 400°C for 1 hour, then mix it with the silane treatment liquid, stir for 2 hours under nitrogen protection at a temperature of 70°C, then filter and wash with absolute ethanol. Dry to constant weight at ℃ to obtain primary modified fiber; wherein, the silane treatment liquid is N-(2-aminoethyl)-3-aminopropyltrimethoxysilane and deionized water mixed according to the dosage ratio of 3g:100mL made,

[0043] Step S12, mix the primary modified fiber with glacial acetic acid, then add additives, stir and react at 20°C for 60 minutes, then raise the temperature to 120°C, and react for 5 hours. After the reaction, cool to room temperature, filter, and use Wash with ionic water until the washing solution is neutral to obtain the enhancer. Wherein, the dosage ratio of primary modified fiber, auxiliary agent and glacial acetic acid is 12g:18g:300mL, and the auxiliary agent is prepared in Example 1.

Embodiment 3

[0045] Prepare enhancer:

[0046] Step S11: Heat the glass fiber at 400°C for 1 hour, then mix it with the silane treatment liquid, stir for 2 hours under nitrogen protection at a temperature of 70°C, then filter and wash with absolute ethanol. Dry to constant weight under the condition of ℃ to obtain the primary modified fiber; wherein, the silane treatment solution is N-(2-aminoethyl)-3-aminopropyltrimethoxysilane and deionized water mixed according to the dosage ratio of 5g:100mL made,

[0047] Step S12, mix the primary modified fiber with glacial acetic acid, then add additives, stir and react at 20°C for 60 minutes, then raise the temperature to 120°C, and react for 8 hours. After the reaction, cool to room temperature, filter, and use Wash with ionic water until the washing solution is neutral to obtain the enhancer. Wherein, the dosage ratio of primary modified fiber, auxiliary agent and glacial acetic acid is 12g:18g:300mL, and the auxiliary agent is prepared in Exam...

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Abstract

The invention relates to a high-temperature-resistant recycled PET plastic particle, and belongs to the technical field of solid waste recycling, the PET plastic particle comprises the following raw materials by weight: 65-75 parts of a recycled material, 10-12 parts of a flame retardant, 3-6 parts of a flexibilizer, 6-10 parts of a reinforcing agent, 0.2-0.3 part of a nucleating agent, and 0.2-0.4 part of an antioxidant; according to the invention, the waste PET material is used as a raw material to prepare the recycled material, then additives such as the reinforcing agent and the flame retardant are added into the recycled material to prepare the high-temperature-resistant recycled PET plastic particle, the added flame retardant belongs to a nitrogen-phosphorus synergistic flame retardant, and the flame retardant is prepared by reacting an intermediate 1 with phosphorus pentoxide and introducing a phosphate ester structure, then reacting with amino in oleylamine to prepare the flame retardant, and the flame retardant is phosphate amine salt and has antistatic property, so that the application range of the high-temperature-resistant recycled PET plastic particle is expanded.

Description

technical field [0001] The invention belongs to the technical field of solid waste recycling, and in particular relates to a high-temperature-resistant recycled PET plastic particle. Background technique [0002] Polyethylene terephthalate (PET) has excellent characteristics (heat resistance, chemical resistance, toughness, electrical insulation, safety, etc.), and is cheap, so it is widely used as fiber, film, engineering Plastic, polyester bottles, etc. Plastic is an important product in polymer synthetic materials. While the plastic industry meets people's life and social development, social and environmental problems caused by "white pollution" caused by the sharp increase in plastic waste are also becoming more and more serious. [0003] Recycled plastics are an effective way to solve the pollution caused by plastics, but recycled plastics have disadvantages such as low strength, no toughness, low gloss, poor thermal oxygen stability, etc. During storage, processing an...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K9/06C08K9/04C08K7/14C08K5/521C08J5/08C07F9/6521C08G59/14C08G59/06
CPCC08J5/08C07F9/6521C08G59/1438C08G59/063C08J2367/02C08K9/06C08K9/08C08K7/14C08K5/521C08K2201/017
Inventor 钱国滨胡强方卫汤明伟董罡星姜良军
Owner 界首市金吴再生资源利用有限公司
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