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Glass fiber reinforced poly(ethylene terephthalate)/polycarbonate alloy

A technology of polyethylene terephthalate and polycarbonate, which is applied in the field of glass fiber reinforced polyethylene terephthalate/polycarbonate alloy, can solve problems affecting product quality and reduce unnecessary Uniform shrinkage, warpage resolution, and anisotropic relief

Inactive Publication Date: 2014-05-07
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods will introduce some small molecular substances into the material, and these small molecular substances will volatilize when the product is sprayed at high temperature, forming pores or bubbles on the paint surface, seriously affecting product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Dissolve lanthanum chloride in absolute ethanol to prepare a solution with a concentration of 0.5% by weight; mix glass fiber with the above-mentioned lanthanum chloride ethanol solution at a weight ratio of 99.0% / 1%, and add it to a self-made high-pressure closed reaction kettle. The temperature was 110°C, and after stirring for 30 minutes, the material was discharged, filtered, and dried. Dissolve lanthanum chloride in absolute ethanol to prepare a solution with a concentration of 0.5% by weight; mix glass beads with the above-mentioned lanthanum chloride ethanol solution at a weight ratio of 99.0% / 1%, and add it to a self-made high-pressure closed reaction kettle , the temperature was 110°C, and after stirring for 30 minutes, the material was discharged, filtered and dried.

[0017] Weigh each component according to the following mass percentages: 45% polyethylene terephthalate, 5% polycarbonate, 3% glass beads, 3% toughening agent, 0.1% nucleating agent, and 0.2% an...

Embodiment 2

[0020] Dissolve lanthanum oxide in absolute ethanol to prepare a solution with a concentration of 1% by weight; mix glass fiber with the above-mentioned lanthanum chloride ethanol solution at a weight ratio of 99.1% / 0.9%, and add it to a self-made high-pressure closed reaction kettle. 115°C, after stirring for 30 minutes, discharge, filter and dry. Dissolve lanthanum chloride in absolute ethanol to prepare a solution with a concentration of 1% by weight; mix glass microspheres with the above-mentioned lanthanum oxide ethanol solution at a weight ratio of 99.1% / 0.9%, and add it to a self-made high-pressure closed reaction kettle. The temperature was 115°C, and after stirring for 30 minutes, the material was discharged, filtered and dried.

[0021] Weigh each component according to the following mass percentages: 50% polyethylene terephthalate, 7% polycarbonate, 5% glass beads, 5% toughening agent, 1% nucleating agent, and 0.5% antioxidant %, the balance is glass fiber.

[002...

Embodiment 3

[0024] Dissolve lanthanum hydroxide in absolute ethanol to prepare a solution with a concentration of 1.5% by weight; mix glass fiber with the above-mentioned lanthanum chloride ethanol solution at a weight ratio of 99.2% / 0.8%, and add it to a self-made high-pressure closed reaction kettle. The temperature was 120°C, and after stirring for 30 minutes, the material was discharged, filtered and dried. Dissolve lanthanum hydroxide in absolute ethanol to prepare a solution with a concentration of 1.5% by weight; mix glass beads with the above-mentioned lanthanum chloride ethanol solution at a weight ratio of 99.2% / 0.8%, and add it to a self-made high-pressure closed reaction kettle , the temperature was 120°C, and after stirring for 30 minutes, the material was discharged, filtered and dried.

[0025] Weigh each component according to the following mass percentages: 55% polyethylene terephthalate, 8% polycarbonate, 7% glass beads, 7% toughening agent, 1.5% nucleating agent, and 0....

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PUM

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Abstract

The invention relates to a glass fiber reinforced poly(ethylene terephthalate) / polycarbonate alloy and a preparation method thereof. The alloy has the innovation point that the glass fiber reinforced poly(ethylene terephthalate) / polycarbonate alloy is prepared by employing a liquid-phase chemical deposition method to cover a rare earth compound layer on surfaces of glass fiber and glass microspheres, and processing with poly(ethylene terephthalate), polycarbonate, a flexibilizer, a nucleating agent and an anti-oxidant in a melt blending manner by a double-screw extrusion machine. The alloy can be subjected to injection molding at a mold temperature of 60 DEG C, has the characteristics of being low in warping property, free of micromolecule volatile matter during spraying, excellent in mechanical properties, high in thermal deformation temperature, stable in dimension and the like, and is applicable to injection molding of vehicle doors, wind shields, tyre guard boards and even whole vehicle bodies.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a glass fiber reinforced polyethylene terephthalate / polycarbonate alloy. Background technique [0002] Automobile plasticization is the development trend of automobile lightweight. Automobile body panels are one of the heaviest parts in automobiles, and the plasticization of body panels is of great significance for reducing the weight of the vehicle. The currently developed body plastic sheets are mainly made of glass fiber reinforced polyethylene terephthalate (PET), and the applied parts include front and rear covers, doors, vertical panels of the body, windshields, tire guards and even the entire body. [0003] Glass fiber reinforced PET materials have excellent mechanical properties, electrical insulation properties, chemical corrosion resistance and aging resistance. During the injection molding process of glass fiber reinforced PET materials, due to the orientation of gla...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L69/00C08K13/06C08K9/02C08K7/14C08K7/20B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/14B29B2009/125B29C48/04B29C48/40B29C48/911B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 穆兴文宋阳曹德志
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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