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Process for preparing nano-SiO2/PET engineering plastic product

A technology of engineering plastics and production methods, applied in the direction of coating, etc., can solve problems that have not been reported before, and achieve the effects of wide application range, good quality of finished products, and simple process

Inactive Publication Date: 2008-09-24
常州钟楼经济开发区北新投资建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the retrieval of the Science and Technology Novelty Search Workstation of the Ministry of Education, SiO 2 The method for producing engineering plastic products from PET composite materials has not been reported so far.

Method used

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  • Process for preparing nano-SiO2/PET engineering plastic product
  • Process for preparing nano-SiO2/PET engineering plastic product
  • Process for preparing nano-SiO2/PET engineering plastic product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, as shown in accompanying drawing 1. Preparation of nano-SiO 2 / PET engineering plastic products, such as plastic mechanical parts. Its production steps are:

[0022] (1) Raw material nano-SiO 2 / PET composite material drying treatment. The raw materials were placed in a hot air drying oven, dried at 150°C for 5 hours, and the moisture content was detected to be ≤40ppm, and they were taken out of the box for use.

[0023] (2) Molding. The dried nano-SiO 2 / PET composite material, put it into a screw injection molding machine, and adopt the usual PET injection molding process to obtain nano-SiO 2 / PET engineering plastic products.

Embodiment 2

[0024] Implementation 2, as shown in Figure 1. Preparation of nano-SiO 2 / PET plastic bar or plate. Its production steps are: except adopting screw extruder, others are all identical with implementation 1.

Embodiment 3

[0025] Implementation 3, refer to accompanying drawing 2. Preparation of Flame Retardant Nano-SiO 2 / PET engineering plastic products. Its production steps are:

[0026] (1) Raw material nano-SiO 2 / ET composite drying treatment. The raw materials were placed in a vacuum drying oven, dried at 135° C. for 6 hours, tested to have a moisture content of ≤ 40 pmm, and taken out of the box for use.

[0027] (2) Preparation of flame retardant. Take 3 parts by weight of decabromodiphenyl ether and 1 part by weight of antimony trioxide to compound to form a compound flame retardant.

[0028] (3) Preparation of compound materials. The dried nano-SiO prepared in the first step 2 / PET composite material, and the composite flame retardant prepared in the second step are weighed and compounded in a ratio of 100:5 by weight, and mixed into a composite material by uniform stirring; Dry at ℃ for 2 hours, and leave the box for use.

[0029] (4) Modification treatment. Put the compound...

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Abstract

The invention discloses a production method of a nano SiO2 / PET engineering plastic product; nano SiO2 / PET composite material slices are taken as the raw materials and a general injection / extrusion process is adopted, so as to first dry the raw materials before injection / extrusion, so that the water content of less than or equal to 40ppm is regarded as the main characteristic. By adding in an appropriate amount of flame retardant, alkali-free glass fiber and special nucleating agent are modified, so that the produced engineering plastic product has higher physical performance and process performance, is more applicable in producing all types of engineering plastic products. The production method is characterized by easy process, quick knockout, good quality of finished products, wide scope of application, applicable in mass industrialized production, etc.

Description

technical field [0001] The present invention relates to a kind of nano SiO 2 The production method of / PET engineering plastic products, specifically, is to use nano-SiO 2 A method for preparing engineering plastic products from PET composite materials. It belongs to the production technology of thermoplastic polymer plastic products. Background technique [0002] Polyethylene terephthalate, referred to as PET, is a thermoplastic polymer material with excellent performance and low price. It is widely used in the production of packaging containers such as synthetic fibers, films and beverage bottles. However, using it to prepare engineering plastic products such as automobiles, electrical appliances, and machinery has a slow crystallization rate due to the rigid benzene ring in its molecular chain, which hinders its application in engineering plastics. Therefore, improving the crystallization rate of PET is the key technology to realize the application of PET in engineerin...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K3/36C08K5/06C08K3/22C08K7/14C08K13/04B29B9/12B29B9/16B29B13/06B29C47/92B29C48/92
CPCB29C47/92
Inventor 金嘉铭崔平田兴友蒙钊吴庆祝袁玉芝罗志毅华云
Owner 常州钟楼经济开发区北新投资建设有限公司
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