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Process for preparing high wear-resistant, high-luster, high-hardness and high-temperature resisting organic silicon resin

A silicone, high-gloss technology, applied in the direction of coating, can solve the problem that the performance of the coating cannot meet the requirements, and achieve the effect of simple process

Inactive Publication Date: 2010-08-04
胡孟进
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of coatings made of silicone resin produced by traditional methods cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Raw material requirements:

[0025] Monomethyltrichlorosilane, purity > 99%; Dimethyldichlorosilane, purity ≥ 99.9%; Monophenyltrichlorosilane, purity > 99%, guaranteed to be absolutely free of chlorophenylsilane and polychlorinated bismuth Benzene and other impurities are quantitatively detected by high-purity gas chromatography; diphenyldichlorosilane, with a purity >99%, is guaranteed to be absolutely free of chlorophenylsilane and polychlorinated biphenyls and other impurities, which are quantitatively detected by high-purity gas chromatography. Trichlorosilane, purity >99%.

[0026] a. The ratio of raw materials by weight in the synthesis of silicone prepolymer:

[0027] 200 parts of monomethyltrichlorosilane

[0028] Dimethyldichlorosilane 15 parts

[0029] 70 parts of one phenyl trichlorosilane

[0030] 12 parts of diphenyl dichlorosilane

[0031] 900 parts of water

[0032] Xylene 450 parts

[0033] Catalyst phosphoric acid 1.5 parts

[0034] Synthetic p...

Embodiment 2

[0050]In this embodiment, the synthesis of the silicone prepolymer and the synthesis of the modified resin prepolymer are the same as in Example 1;

[0051] Raw material weight ratio in the telomerization reaction:

[0052] Silicone prepolymer 50 parts

[0053] Modified resin prepolymer 100 parts

[0054] Catalyst zinc acetate 0.8 part

[0055] Mix the organosilicon prepolymer and the modified resin prepolymer according to the above ratio, and carry out the telomerization reaction under the condition of 120-140° C. for 4 hours under the action of the catalyst to obtain the finished product.

Embodiment 3

[0057] Raw material requirements:

[0058] Monomethyltrichlorosilane, purity > 99%; Dimethyldichlorosilane, purity ≥ 99.9%; Monophenyltrichlorosilane, purity > 99%, guaranteed to be absolutely free of chlorophenylsilane and polychlorinated bismuth Benzene and other impurities are quantitatively detected by high-purity gas chromatography; diphenyldichlorosilane, with a purity >99%, is guaranteed to be absolutely free of chlorophenylsilane and polychlorinated biphenyls and other impurities, which are quantitatively detected by high-purity gas chromatography. Trichlorosilane, purity >99%.

[0059] a. The ratio of raw materials by weight in the synthesis of silicone prepolymer:

[0060] 180 parts of monomethyltrichlorosilane

[0061] Dimethyldichlorosilane 30 parts

[0062] 40 parts of 1-phenyltrichlorosilane

[0063] 24 parts of diphenyl dichlorosilane

[0064] 1200 parts of water

[0065] Xylene 600 parts

[0066] Synthetic process of organosilicon prepolymer: ①Hydrolysis...

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Abstract

The present invention relates to a preparation process of silicone resin, especially the preparation process of a kind of high wear-resistant and hardness, high gross and high-temperature resistant silicone resin; from the perspective of molecular design, the process introduces a structure of organic special resin in silicone resin, which not only keeps the high-temperature resistant ability of silicone, but also ensures polymer materials with the cold hardness over 7H, the wear resistance of wet rubbing for over ten thousand and the high gloss. The material used in the present invention is complete nontoxic, simple in process, reasonable, and environmentally friendly; the high wear-resistant and hardness, high gross and high-temperature resistant silicone resin prepared by the present invention, can be used in the high gloss decorative coating, the military acid, alkali and salt-fog resistant coating, and any weatherability, antipollution exposed chemicals on electrical elements, devices and equipments, and can also be used in the surface treatments for ceramic tile and granite.

Description

technical field [0001] The invention relates to a preparation process of an organosilicon resin, in particular to a preparation process of a highly wear-resistant, high-gloss, high-hardness, high-temperature-resistant organosilicon resin. Background technique [0002] There are many kinds of silicone resins. The traditional synthetic method of silicone resins is to use general-purpose silicone monomers such as monomethyltrichlorosilane, dimethyldichlorosilane, onephenyltrichlorosilane, and diphenyldichlorosilane. Body, in the presence of xylene or other solvents, co-hydrolysis. After the hydrolyzate is washed with water until it becomes acidic, it undergoes high-temperature polycondensation to telomerize its hydroxyl content to produce a moderately cross-linked silicone prepolymer. This prepolymer is still soluble in solvent and is called silicone resin. The coatings are made into insoluble crosslinked polymer coatings after being cured at high temperature. They generally ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/06C09D183/04
Inventor 胡孟进王亚维
Owner 胡孟进
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