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Rapid prototyping glass fiber reinforced PET composite material

A composite material and glass fiber technology, applied in the field of glass fiber reinforced PET composite materials, can solve problems such as restricting the application field and broad prospects of PET

Pending Publication Date: 2022-03-18
上海珐工材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason why PET is selected is to use the high temperature resistance of PET, but due to the defect of cold crystallization temperature point in PET, it seriously restricts the application field and broad prospects of PET.

Method used

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  • Rapid prototyping glass fiber reinforced PET composite material
  • Rapid prototyping glass fiber reinforced PET composite material
  • Rapid prototyping glass fiber reinforced PET composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be further explained below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

[0012] 1. Specific implementation plan

[0013] (1) Formulation design:

[0014] The present invention selects PET glass fiber reinforced 30% modified material as a typical case of formula design for analysis and demonstration, but it is not limited to glass fiber reinforced 30%, and is applicable within the scope of glass fiber reinforced 0%-60% (at present, both at home and abroad The PET glass fiber reinforcement sold by the brand on the market is up to 60%).

[0015] Table 1 Sample numbers ...

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PUM

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Abstract

The invention relates to the technical field of composite materials, in particular to a rapid prototyping glass fiber reinforced PET composite material, and designs the rapid prototyping glass fiber reinforced PET composite material, PENT is added into PET, and the PENT is PET copolyester and is used for reducing the steric hindrance of PET molecules, so that the thermal crystallization temperature point and the glass-transition temperature of the PET copolyester can be effectively reduced, and the thermal conductivity of the PET copolyester is improved. And meanwhile, the difference between the melting point of the material and the melting point of the raw material PET is less than 5 DEG C, so that the weakness of the PET is thoroughly eliminated, and meanwhile, the high-temperature-resistant characteristic of the PET is reserved.

Description

technical field [0001] The patent of the invention relates to the technical field of composite materials, specifically a rapidly prototyping glass fiber reinforced PET composite material. Background technique [0002] Polyethylene terephthalate (PET) is made by the polycondensation reaction of terephthalic acid and ethylene glycol. It is a semi-crystalline saturated polyester. Because there are only two benzene rings in the PET molecule A methylene group leads to a large steric hindrance when the molecular chain creeps. During the molding process, it exhibits the characteristics of slow crystallization rate, long molding cycle, high molding temperature, long mold retention time, and poor impact performance. Based on the above defects , PET resin has been severely restricted in the application of engineering plastics. [0003] The traditional modification method is to increase the thermal crystallization temperature (Thc) and crystallization rate of PET resin by adding a nuc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K7/14C08J5/04
CPCC08J5/043C08J2367/02C08J2467/02C08K7/14
Inventor 叶楚祥
Owner 上海珐工材料科技有限公司