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Glass fiber reinforced NPG-PETG transparent composite material and preparation method thereof

A technology of glass fiber and composite materials, which is applied in the field of glass fiber reinforced NPG-PETG transparent composite materials and its preparation, which can solve the problems of low toughness and achieve the effects of high fluidity, high surface gloss and high impact strength

Active Publication Date: 2020-02-18
腾龙特种树脂(厦门)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] NPG-PETG is formed by esterification and polycondensation of neopentyl glycol, ethylene glycol and terephthalic acid. It is a new transparent resin with scratch resistance, aging resistance, chemical resistance and high gloss. High fluidity, but compared with CHDM-PETG, its toughness is low

Method used

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  • Glass fiber reinforced NPG-PETG transparent composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A glass fiber reinforced NPG-PETG transparent composite material. The components in the raw material include 50 parts of NPG-PETG, 50 parts of modified glass fiber, 0.9 part of antioxidant and 0.3 part of lubricant.

[0035] The above-mentioned NPG-PETG is formed by esterification and polycondensation of neopentyl glycol, ethylene glycol and terephthalic acid.

[0036] Above-mentioned lubricant selects stearate for use.

[0037] The above antioxidant is selected from phenolic antioxidant 1010.

[0038] The preparation method of above-mentioned modified glass fiber comprises the following steps:

[0039] S1: Take an appropriate amount of glass fiber with a length of 3-4.5mm and a single filament diameter of 8-17μm, add it to a 9.5mol / L phosphoric acid solution, where the mass ratio of glass fiber to phosphoric acid solution is 1:25, and stir at room temperature for 3 minutes;

[0040] S2: Filter the treated glass fiber from the phosphoric acid solution, wash it with de...

Embodiment 2

[0049] A glass fiber reinforced NPG-PETG transparent composite material. The components in the raw material include 60 parts of NPG-PETG, 40 parts of modified glass fiber, 0.1 part of antioxidant and 0.6 part of lubricant.

[0050] The above-mentioned NPG-PETG is formed by esterification and polycondensation of neopentyl glycol, ethylene glycol and terephthalic acid.

[0051] Above-mentioned lubricant selects fatty alcohol diacid ester for use.

[0052] The above-mentioned antioxidant is selected from phosphite lipid antioxidant 168.

[0053] The preparation method of above-mentioned modified glass fiber comprises the following steps:

[0054] S1: Add an appropriate amount of glass fiber with a length of 3-4.5mm and a single filament diameter of 8-17μm into a 9.5mol / L phosphoric acid solution, where the mass ratio of glass fiber to phosphoric acid solution is 1:26, and stir at room temperature for 6 minutes;

[0055] S2: Filter the treated glass fiber from the phosphoric acid ...

Embodiment 3

[0064] A glass fiber reinforced NPG-PETG transparent composite material. The components in the raw material include 75 parts of NPG-PETG, 30 parts of modified glass fiber, 1.8 parts of antioxidant and 0.5 part of lubricant.

[0065] The above-mentioned NPG-PETG is formed by esterification and polycondensation of neopentyl glycol, ethylene glycol and terephthalic acid.

[0066] The above-mentioned lubricants are selected from stearic acid ester and fatty alcohol diacid ester, and the ratio of the two is 1:1.

[0067] The above antioxidants are selected from phenolic antioxidant 1010 and phosphite antioxidant 168, in which 1010 and 168 are 1:2.

[0068] The preparation method of above-mentioned modified glass fiber comprises the following steps:

[0069] S1: Take an appropriate amount of glass fiber with a length of 3-4.5mm and a single filament diameter of 8-17μm, add it to a 9.5mol / L phosphoric acid solution, where the mass ratio of glass fiber to phosphoric acid solution is ...

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Abstract

The invention relates to the technical field of high polymer materials, in particular to a glass fiber reinforced NPG-PETG transparent composite material and a preparation method thereof. The glass fiber reinforced NPG-PETG transparent composite material is prepared from, by weight, 50-95 parts of NPG-PETG, 5-50 parts of modified glass fiber, 0.1-3 parts of an antioxidant and 0.3-2 parts of a lubricant; the NPG-PETG used in the invention is prepared by esterification and polycondensation of three monomers of neopentyl glycol (NPG), ethylene glycol and terephthalic acid, and has good fluidity and high gloss. The modified glass fiber is blended into the NPG-PETG, so that the prepared glass fiber reinforced NPG-PETG composite material keeps transparent while having high impact strength, heatresistance, high modulus, high rigidity and high surface gloss.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced NPG-PETG transparent composite material and a preparation method thereof. Background technique [0002] Glass fiber is often used in composite materials to strengthen and toughen, improve the strength, heat insulation and other properties of composite materials. When glass fiber is applied to PETG composite material, due to the smooth surface of glass fiber, the adhesion with the base material is weak, the compatibility is poor, and it is easy to appear floating fibers and other undesirable phenomena, which is not conducive to the strengthening and toughening of PETG composite material , which greatly limits its application. [0003] PETG is a transparent resin, which is an amorphous copolyester. The comonomer commonly used in PETG is 1,4-cyclohexanedimethanol (CHDM), which is called polyethylene terephthalate-1,4- Cyclohexane dimethanol ester...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K9/02C08K7/14C08K5/103C08J5/08
CPCC08J5/08C08J2367/02C08J2467/02C08K5/103C08K7/14C08K9/02C08K9/06C08K13/06C08K2201/003C08K2201/004
Inventor 王惠武曾晓强梁腾辉刘虎杨立清赵铁侠黄耀智吴荣汉
Owner 腾龙特种树脂(厦门)有限公司
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