Polyester molding compound with imitative agate decorative patterns and preparation method thereof

A technology of molding compound and polyester, which is applied in the field of preparation of polyester molding compound, can solve the problems of not being able to meet the requirements of product diversity and individualization, agate processing is easy to be damaged, broken, and environmental damage, so as to reduce mining and environmental damage. The effects of destruction, short mixing time and energy saving

Inactive Publication Date: 2011-10-19
NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, polyester molding compounds are monochromatic, and this monochrome polyester molding compound can no longer meet people's requirements for product diversity and individualization.
Moreover, with the increasing amount of natural agate mining, on the one hand, natural resources have been over-exploited and plundered, on the other hand, over-exploitation has also caused certain environmental damage, and improper handling of natural agate is easily damaged, broken, and the price also very expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Select 17 parts of unsaturated polyester, 12 parts of low-shrinkage additives, 50.4 parts of hydrated aluminum oxide, 0.2 parts of initiator, 0.8 parts of release agent, 0.5 parts of thickener, 1 part of wetting and dispersing agent, 0.1 part of brown color paste, 18 parts of alkali-free chopped glass fiber, set aside.

[0031] (1) Pour the unsaturated polyester, low-shrinkage additive, initiator, and wetting and dispersing agent into the kneader, and knead for 10 minutes at a temperature of 16°C;

[0032] (2) adding alumina hydrate, thickener and mold release agent, and kneading at a temperature of 18°C ​​for 40 minutes;

[0033] (3) First add the non-alkali chopped glass fiber with a formula proportioning dosage of 95%, and knead for 3 minutes at a temperature of 20° C.;

[0034] (4) Seal the obtained semi-finished product and store it at 35°C for 2 days;

[0035] (5) Pour the brown paste and the remaining 5% non-alkali chopped glass fiber into the kneader, and knea...

Embodiment 2

[0048] Select 16 parts of unsaturated polyester, 12 parts of low shrinkage additives, 54.88 parts of hydrated aluminum oxide, 0.3 parts of initiator, 0.6 parts of release agent, 0.4 parts of thickener, 0.7 parts of wetting and dispersing agent, 0.12 parts of brown color paste, 15 parts of alkali-free chopped glass fiber, set aside.

[0049] (1) Pour the unsaturated polyester, low-shrinkage additive, initiator, and wetting and dispersing agent into the kneader, and knead for 12 minutes at a temperature of 15°C;

[0050] (2) adding alumina hydrate, thickener and release agent, and kneading at a temperature of 18°C ​​for 42 minutes;

[0051] (3) Add 95% non-alkali chopped glass fiber and knead for 4 minutes at a temperature of 22°C;

[0052](4) Seal the obtained semi-finished product and store it at 36°C for 3 days;

[0053] (5) Pour the brown color paste and 5% non-alkali chopped glass fiber into the kneader, and knead for 6 minutes at a temperature of 15°C;

[0054] (6) Fina...

Embodiment 3

[0066] Select 16 parts of unsaturated polyester, 12 parts of low shrinkage additives, 54.88 parts of hydrated aluminum oxide, 0.3 parts of initiator, 0.6 parts of release agent, 0.4 parts of thickener, 0.7 parts of wetting and dispersing agent, 0.12 parts of brown color paste, 15 parts of alkali-free chopped glass fiber, set aside.

[0067] (1) Pour the unsaturated polyester, low-shrinkage additive, initiator, and wetting and dispersing agent into the kneader, and knead for 14 minutes at a temperature of 15°C;

[0068] (2) adding alumina hydrate, thickener and mold release agent, and kneading at a temperature of 17°C for 40 minutes;

[0069] (3) Add 95% non-alkali chopped glass fiber and knead for 5 minutes at a temperature of 23°C;

[0070] (4) Seal the obtained semi-finished product and store it at 45°C for 3 days;

[0071] (5) Pour the brown color paste and 5% non-alkali chopped glass fiber into the kneader, and knead for 7 minutes at a temperature of 16°C;

[0072] (6) ...

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Abstract

The invention discloses a polyester molding compound with imitative agate decorative patterns, which is prepared from the following raw materials in parts by weight: 16-22 parts of unsaturated polyester, 12-16 parts of low-shrink additive, 50-65 parts of hydrated alumina, 0.2-0.4 part of initiator, 0.5-2 parts of releasing agent, 0.4-0.8 part of thickener, 0.6-3 parts of wetting dispersant, 0.1-0.3 part of brown color paste and 15-20 parts of alkali-free chopped glass fiber. The polyester molding compound with imitative agate decorative patterns not only has the appearance with natural agate decorative patterns, but also has the advantages of high strength, difficult damage, use for the hot-press forming of various products and parts, capacity of partially replacing natural agate productsand reduced extraction of natural agates and environmental disruption.

Description

technical field [0001] The invention relates to an engineering plastic and a preparation method thereof, in particular to a preparation method of an agate imitation polyester molding compound. Background technique [0002] Due to the good appearance of polyester molding products and the diversification of molding processes, polyester molding compounds are widely used in the electrical industry, automobile industry, construction and office supplies. [0003] At present, polyester molding compounds are monochromatic, and this monochromatic polyester molding compound can no longer meet people's requirements for product diversity and individualization. Moreover, with the increasing amount of natural agate mining, on the one hand, natural resources have been over-exploited and plundered, and on the other hand, over-exploitation has also caused certain environmental damage, and natural agate is easily damaged and broken, and the price Also very expensive. Therefore, it is necess...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/01C08K13/04C08K3/22C08K7/14C08L25/06C08L51/08
Inventor 俞碧波
Owner NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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