Surface modifier of inorganic powder as well as preparation method and application of surface modifier

A surface modifier and inorganic powder technology, applied in the field of organic materials, can solve the problems of weak effect, limited efficiency improvement of polymer materials, weak force, etc., to reduce processing viscosity, improve mechanical properties, and increase filling capacity Effect

Inactive Publication Date: 2017-09-01
黄驰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silane coupling agents are widely used in the surface modification of inorganic metal oxide powders, and play an important role in promoting inorganic powders to reinforce polymer materials. However, most inert silane coupling agents are not compatible with high The intermolecular force between molecules is relatively weak, which may lead to a weak interaction between the powder and the polymer, so that the efficiency of the inorganic powder to strengthen the polymer material is limited, and the inorganic powder is in the polymer material. The amount of filling also needs to be further improved

Method used

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  • Surface modifier of inorganic powder as well as preparation method and application of surface modifier
  • Surface modifier of inorganic powder as well as preparation method and application of surface modifier
  • Surface modifier of inorganic powder as well as preparation method and application of surface modifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A surface modifier for inorganic powder, which is a double-terminated hydroxyl polyethylene modified organosilane or a mixture thereof, and its chemical structure is as follows:

[0025]

[0026] Among them, the degree of polymerization n is 100; R 1 is methyl, R 2 is methoxy, R 3 for—CH 2 CH 2 CH 2 NH 2 .

[0027] The preparation method of the above-mentioned inorganic powder modifier is: add 100 parts by mass of petroleum ether at 60-90°C and 100 parts by mass of aminopropyltrimethoxysilane into the reactor, stir evenly, then add 300 parts by mass of 100 double-ended hydroxyl polyethylene, after reflux reaction at 80°C for 10h, distill petroleum ether and produced methanol at 100°C, heat up and distill under reduced pressure to remove unreacted aminopropyltrimethoxysilane, that is The hydroxyl-terminated polyethylene-modified organosilane, that is, the surface modifier of the inorganic powder, is obtained.

[0028] Application: Take 5 parts by mass of the a...

Embodiment 2

[0031] A surface modifier for inorganic powder, which is a mixture of two kinds of single-end hydroxyl polyethylene modified organosilanes. The chemical structure is as follows:

[0032]

[0033] Where modifier 1 is: n is 5, R 1 is ethyl, R 2 is ethoxy, R 3 for—CH 2 NH 2 ; Modifier 2 is: n is 5, R 1 is methyl, R 2 is methoxy, R 3 for—CH 2 CH 2 NH 2 .

[0034] The preparation method of above-mentioned inorganic powder modifier is:

[0035] Based on organosilane, 100 parts by mass. Add 20 parts by mass of aminomethyltriethoxysilane and 80 parts by mass of aminoethyltrimethoxysilane into the reactor. After stirring evenly, add 50 parts by mass of single-ended hydroxyl polyethylene with a degree of polymerization of 5. After reflux reaction at high temperature for 0.5h, distill petroleum ether and the produced methanol and ethanol at 100°C, heat up and distill under reduced pressure to remove unreacted aminomethyltriethoxysilane and aminoethyltrimethoxysilane, That...

Embodiment 3

[0039] A surface modifier for inorganic powder, which is a mixture of two double-ended hydroxyl polyethylene modified organosilanes. The chemical structure is as follows:

[0040]

[0041] Where modifier 1 is: n is 500, R 1 is ethyl, R 2 is ethoxy, R 3 for—CH 2 CH 2 CH 2 NHCH 2 CH 2 NH 2 , modifier 2 is: n is 500, R 1 is ethyl, R 2 is methyl, R 3 for—CH 2 NH 2 .

[0042] The preparation method of above-mentioned inorganic powder modifier is:

[0043] Based on organosilane, 100 parts by mass. Add 300 parts by mass of cyclohexane, 99 parts by mass of N-aminoethyl-aminopropyltriethoxysilane and 1 part by mass of aminomethylmethyldiethoxysilane into the reactor, stir well, then add 900 parts by mass Parts by mass of hydroxyl-terminated polyethylene with a degree of polymerization of 500, after reflux reaction at 80°C for 48 hours, distill off petroleum ether and ethanol at 100°C, then heat up and distill under reduced pressure to remove unreacted N-aminoethyl -A...

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Abstract

The invention discloses a surface modifier of inorganic powder as well as a preparation method and application of the surface modifier. The surface modifier is terminal hydroxyl polyethylene modified organosilane, and is prepared by enabling alkoxy silane as a raw material, reacting alkoxy silane with single / double terminal hydroxyl polyethylene, and by removing generated alcohol and unreacted silane through distillation. The surface modifier can be applied to surface modification upon various inorganic powder materials, and dispersity of the inorganic powder in high polymers is improved.

Description

technical field [0001] The invention relates to the field of organic materials, in particular to an inorganic powder surface modifier, a preparation method and application thereof. Background technique [0002] Silane coupling agents are widely used in the surface modification of inorganic metal oxide powders, and play an important role in promoting inorganic powders to reinforce polymer materials. However, most inert silane coupling agents are not compatible with high The intermolecular force between molecules is relatively weak, which may lead to a weak interaction between the powder and the polymer, so that the efficiency of the inorganic powder to strengthen the polymer material is limited, and the inorganic powder is in the polymer material. The amount of filling also needs to be further improved. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a surface modifier for inorganic powder and its preparation met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/42C08F110/02C08K9/10C08K3/36C08K3/26C08L29/14C08L83/04C08L23/06
CPCC08F8/42C08K3/26C08K9/10C08K2003/265C08L29/14C08L2207/066C08F110/02C08L83/04C08K3/36C08L23/06
Inventor 黄驰胡铭杰廖俊
Owner 黄驰
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