Low thermal shrinkage rate culture stone mold glue and preparation method thereof

A technology of shrinkage rate and cultural stone, applied in the field of silicone rubber materials, can solve the problems of not being able to clearly show the original style of stone, affecting the fineness of cultural stone decoration, appearance, and apparent color, etc., to achieve a good low shrinkage rate , Not easy to deform, stable composition effect

Inactive Publication Date: 2014-11-05
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

Among them, soft PVC cannot clearly show the original style of stone because of its soft material; while RTV has the advantages of good chemical stability, non-corrosiveness, and good flow, but the thermal shrinkage rate of RTV molds is

Method used

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  • Low thermal shrinkage rate culture stone mold glue and preparation method thereof
  • Low thermal shrinkage rate culture stone mold glue and preparation method thereof
  • Low thermal shrinkage rate culture stone mold glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] A low heat shrinkage cultural stone mold glue, its raw material formula is composed of the following components by weight:

[0030]

[0031] The base material A is 107 room temperature vulcanized silicone rubber with a viscosity of 700mpa.s;

[0032] The base material B is 107 room temperature vulcanized silicone rubber with a viscosity of 50000mpa.s;

[0033] The catalyst is dibutyl tin dilaurate;

[0034] The filling powder is silicon micro powder.

[0035] The preparation method of the above-mentioned low heat shrinkage cultural stone mold glue is:

[0036] According to the components and parts by weight of the above formula, mix base material A, base material B, ethyl orthosilicate, catalyst, filler powder and fumed silica at 1500 rpm for 30 minutes until uniform , Then vacuum degassing under a vacuum of -0.095MPa; then pour it into a mold and perform a curing reaction at 25° C. for 60 minutes to obtain the low heat shrinkage cultured stone mold glue.

Example Embodiment

[0037] Example 2

[0038] A low heat shrinkage cultural stone mold glue, its raw material formula is composed of the following components by weight:

[0039]

[0040]

[0041] The base material A is type 107 room temperature vulcanized silicone rubber with a viscosity of 600mpa.s;

[0042] The base material B is 107 room temperature vulcanized silicone rubber with a viscosity of 55000mpa.s;

[0043] The catalyst is stannous octoate;

[0044] The filling powder is silicon micro powder.

[0045] The preparation method of the above-mentioned low heat shrinkage cultural stone mold glue is:

[0046] According to the components and parts by weight of the above formula, mix base material A, base material B, ethyl orthosilicate, catalyst, filler powder and fumed silica at 2000 rpm for 50 minutes until uniform , Then vacuum degassing under a vacuum of -0.095MPa; then pour it into a mold and perform a curing reaction at 30°C for 40 minutes to obtain the low heat shrinkage cultured stone mold glue....

Example Embodiment

[0047] Example 3

[0048] A low heat shrinkage cultural stone mold glue, its raw material formula is composed of the following components by weight:

[0049]

[0050] The base material A is type 107 room temperature vulcanized silicone rubber with a viscosity of 800mpa.s;

[0051] The base material B is type 107 room temperature vulcanized silicone rubber with a viscosity of 45000mpa.s;

[0052] The catalyst is dibutyltin bis(dodecylsulfide);

[0053] The filling powder is silicon micro powder.

[0054] The preparation method of the above-mentioned low heat shrinkage cultural stone mold glue is:

[0055] According to the components and parts by weight of the above formula, mix base material A, base material B, ethyl orthosilicate, catalyst, filler powder and fumed silica at 3000 rpm for 60 minutes until uniform , Then vacuum degassing under a vacuum of -0.095MPa; then pour it into a mold and perform a curing reaction at 30°C for 20 minutes to obtain the low heat shrinkage cultured stone ...

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Abstract

The invention belongs to the technical field of silicone rubber materials, and discloses low thermal shrinkage rate culture stone mold glue and a preparation method thereof; the low thermal shrinkage rate culture stone mold glue is composed of the following components in parts by weight: 10-40 parts of a base material A; 20-50 parts of a base material B; 2-5 parts of ethyl orthosilicate; 0.02-1 part of a catalyst; 3-15 parts of filler powder; and 15-28 parts of fumed silica. The preparation method of the low thermal shrinkage rate culture stone mold glue is as follows: according to the formula, mixing the base material A, the base material B, the ethyl orthosilicate, the catalyst, the filler powder and the fumed silica for stirring evenly, and then vacuumizing for deaeration; and then pouring into a mold for curing reaction to obtain the low thermal shrinkage rate culture stone mold glue. The low thermal shrinkage rate culture stone mold glue has advantages of no oil permeability, high hardness, low thermal shrinkage rate and good transparency, and can be used as high quality mold glue for culture stone mold turning production.

Description

technical field [0001] The invention belongs to the technical field of silicone rubber materials, and in particular relates to a cultural stone mold glue with low shrinkage rate and a preparation method thereof. Background technique [0002] Cultural stone, also known as art stone or artificial stone, is a kind of imitation stone decorative material that is made of cement, sand, inorganic pigments, etc. The application of wall decoration and so on is more and more extensive. [0003] In the production of cultural stones, flexible molds are generally used for casting molding. Currently, the molds used are mainly soft PVC plastic and liquid room temperature vulcanized silicone rubber (RTV). Among them, soft PVC cannot clearly show the original style of stone because of its soft material; while RTV has the advantages of good chemical stability, non-corrosiveness, and good flow, but the thermal shrinkage rate of RTV molds is relatively large, which will affect The fineness and...

Claims

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Application Information

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IPC IPC(8): C08L83/06C08K3/36C08K5/5415
Inventor 王细平
Owner 惠州市永卓科技有限公司
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