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Addition-type mold rubber and preparation method thereof

A technology of mold glue and addition molding, applied in the field of addition molding mold glue and addition molding mold glue for making crystal drills, can solve the problems of low brightness of crystal drills, affecting the service life of mold glue, short service life, etc. The effect of improved brightness, long service life and high economic value

Active Publication Date: 2014-04-30
惠州市永卓科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventors have found in research that the existing addition mold glue used to make crystal diamonds has a short service life, because at high temperatures, the mold glue will react with products (such as epoxy resin, etc.), so It affects the service life of the mold glue, resulting in only about 20 mold turning times of the existing mold glue; in addition, the brightness of the crystal diamond prepared by using the existing addition mold glue is also relatively low

Method used

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  • Addition-type mold rubber and preparation method thereof
  • Addition-type mold rubber and preparation method thereof
  • Addition-type mold rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of addition mold glue of the present embodiment, its raw material formula is made up of each component of following parts by weight:

[0038]

[0039] The structural formula of the above-mentioned component A is shown in the general formula (I):

[0040]

[0041]

[0042] In the above formula (I), a=90;

[0043] The structural formula of the above-mentioned component B is shown in the general formula (II):

[0044]

[0045] In the above formula (II), b=10 and c=12.

[0046] The above-mentioned catalyst is a Castel platinum catalyst with a platinum content of 3000 pmm; the white carbon black is commercially available white carbon black, and the inhibitor 1 is 3,5-dimethyl-1-hexyn-3-ol.

[0047] The structural formula of the above-mentioned inhibitor 2 is shown in the general formula (III):

[0048]

[0049] In the above formula (III), d=12.

[0050] The preparation method of above-mentioned addition mold glue comprises the steps:

[0051] Accor...

Embodiment 2

[0053] A kind of addition mold glue of the present embodiment, its raw material formula is made up of each component of following parts by weight:

[0054]

[0055]

[0056] The structural formula of the above-mentioned component A is shown in the general formula (I):

[0057]

[0058] In the above formula (I), a=98;

[0059] The structural formula of the above-mentioned component B is shown in the general formula (II):

[0060]

[0061] In the above formula (II), b=5 and c=14.

[0062]The above-mentioned catalyst is a Castel platinum catalyst with a platinum content of 3000 pmm; the white carbon black is commercially available white carbon black, and the inhibitor 1 is 2-propyn-1-ol.

[0063] The structural formula of the above-mentioned inhibitor 2 is shown in the general formula (III):

[0064]

[0065] In the above formula (III), d=10.

[0066] The preparation method of above-mentioned addition mold glue comprises the steps:

[0067] According to the ab...

Embodiment 3

[0069] A kind of addition mold glue of the present embodiment, its raw material formula is made up of each component of following parts by weight:

[0070]

[0071] The structural formula of the above-mentioned component A is shown in the general formula (I):

[0072]

[0073] In the above formula (I), a=95;

[0074] The structural formula of the above-mentioned component B is shown in the general formula (II):

[0075]

[0076] In the above formula (II), b=13 and c=15.

[0077] The above-mentioned catalyst is a Castel platinum catalyst with a platinum content of 3000 pmm; the white carbon black is commercially available white carbon black, and the inhibitor 1 is 3,5-dimethyl-1-hexyn-3-ol.

[0078] The structural formula of the above-mentioned inhibitor 2 is shown in the general formula (III):

[0079]

[0080] In the above formula (III), d=15.

[0081] The preparation method of above-mentioned addition mold glue comprises the steps:

[0082] According to the ...

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Abstract

The invention discloses addition-type mold rubber and a preparation method thereof. The addition-type mold rubber is prepared from the following raw materials in parts by weight: 70-85 parts of component A, 5-10 parts of component B, 0.2-2.0 parts of catalyst, 0.1-1.5 parts of inhibitor 1, 3-7 parts of white carbon black and 20-25 parts of inhibitor 2. The addition-type mold rubber disclosed by the invention has good tensile strength, tear strength and hardness, is very suitable for manufacturing of crystal drills and long in service life, the rolling-over number of times of the addition-type mold rubber reaches up to 35-45 times, and the brightness of the manufactured crystal drills is greatly improved.

Description

technical field [0001] The invention relates to the technical field of addition-type mold glue, in particular to the technical field of addition-type mold glue that can be used for making crystal diamonds. Background technique [0002] Addition mold glue has the characteristics of good transparency, easy deep curing, and small shrinkage rate. It is mainly used in the production of precision molds and exquisite replicas. [0003] At present, the commonly used mold glue for crystal diamonds is addition-type mold silicone, because the addition-type mold silicone has the advantages of high transparency and good mold release. Compared with plastic, addition mold plastic has better dimensional stability, linear shrinkage rate is less than 0.1%, heat resistance can reach above 250 ℃, and it will not restore when heated in a sealed environment. [0004] However, the inventors have found in research that the existing addition mold glue used to make crystal diamonds has a short servi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08L83/04C08K5/05C08K3/36
Inventor 王细平
Owner 惠州市永卓科技有限公司
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