Rapidly-moulded PET engineering plastic and preparation method thereof

A kind of engineering plastics, fast technology, applied in the field of rapid prototyping PET engineering plastics and its preparation, can solve the problems of slow crystallization speed, affecting the performance of PET engineering plastics, difficulty in forming, etc., to achieve improved performance, simple processing methods, and improved The effect of crystallization speed

Inactive Publication Date: 2018-01-05
江苏晶王新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the disadvantages of molding difficulty in the modification process of PET engineering plastics, slow crystallization speed, and affecting the performance of PET engineering plastics, etc., and proposes a rapid prototyping PET engineering plastic and a preparation method thereof, and adopts new materials and new processes to make it It can achieve the characteristics of rapid prototyping and rapid crystallization, and further improve the performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A rapid prototyping PET engineering plastic. The engineering plastic is composed of the following raw materials in weight percentage: 40% PET waste raw material, 15% modified glass fiber, 3% flame retardant, 5% crystallization nucleating agent, 3% lubricant, Antioxidant 2%, chain extender 2%, and the rest is water.

Embodiment 2

[0024] A rapid prototyping PET engineering plastic. The engineering plastic is composed of the following raw materials in weight percentage: PET waste material 50%, modified glass fiber 20%, flame retardant 7%, crystallization nucleating agent 10%, lubricant 5%, Antioxidant 5%, chain extender 4%, and the rest is water.

Embodiment 3

[0026] A rapid prototyping PET engineering plastic. The engineering plastic is composed of the following raw materials in weight percentage: 45% PET waste raw material, 18% modified glass fiber, 5% flame retardant, 7% crystallization nucleating agent, 4% lubricant, Antioxidant 3%, chain extender 3%, and the rest is water.

[0027] A rapid prototyping PET engineering plastic, the viscosity of PET waste raw materials is not more than 0.4dl / g; the modified glass fiber is graft copolymerized glass fiber; the flame retardant is halogen-free phosphine nitrogen flame retardant and brominated flame retardant The complex; the crystallization nucleating agent is composed of a salt of a copolymer of 1:2:1.5, an inorganic salt, and a crystallization accelerator; the lubricant is a composition of PE wax and microcrystalline paraffin.

[0028] A kind of preparation method of the PET engineering plastics of rapid prototyping, preparation method is as follows:

[0029] (1) Recycling PET is p...

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PUM

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Abstract

The invention discloses rapidly-moulded PET engineering plastic and a preparation method thereof, and belongs to the technical field of preparation of engineering plastic. The rapidly-moulded PET engineering plastic comprises the following raw materials in percent by weight: 40-50% of a PET waste raw material, 15-20% of modified glass fiber, 3-7% of a flame retardant, 5-10% of a crystallizing nucleating agent, 3-5% of a lubricating agent, 2-5% of an antioxidant, 2-4% of a chain expander and the balance of water. The preparation principle of the invention is clear; a processing method is simple; due to difficulty in moulding processing, the PET crystallization speed is improved, the plasticizing and toughening effects are achieved and further the using performance is further improved.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics preparation, and relates to an engineering plastic and a preparation method thereof, in particular to a rapidly prototyping PET engineering plastic and a preparation method thereof. Background technique [0002] PET for engineering plastics has excellent comprehensive performance and low price, which is very competitive with other general engineering plastics. There are rigid groups on the main chain of PET molecules, so its heat resistance is very high; at the same time, due to the high symmetry of the molecular chain, its electrical properties are also very good. However, PET also has disadvantages such as low crystallization rate, difficult molding process, high mold temperature, long molding cycle, and poor impact strength, which greatly limits its application range. [0003] Our country has a large population and consumes a large number of PET plastic water bottles, but when the...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L51/10C08K13/02C08K5/00B29B9/06
Inventor 王明华
Owner 江苏晶王新材料科技有限公司
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