Two-component addition type room temperature vulcanized silicone rubber for manufacturing handprint mold and footprint mold

A technology of room temperature vulcanization and addition molding, which is applied in the field of silicone rubber, and can solve problems such as difficult permanent storage, easy breakage, and durability defects of curing speed materials.

Inactive Publication Date: 2010-05-05
合肥凯蒙新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dried clay is brittle, easy to break and difficult to store permanently
[0004] In short, the current hand and footprint materials have obvious shortcomings in terms of safety, curing speed and material durability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Two-component addition-type room temperature vulcanizing silicone rubber for making handprints and footprints, consisting of a base component and a catalyst component in separate packages:

[0037] The base component is made by mixing the following raw material components:

[0038] (1) Vinyl silicone oil: 40-80% by weight, linear methyl vinyl methyl silicone oil with a viscosity of 50-65000 centipoise, linear methyl phenyl vinyl silicone oil, linear ethyl vinyl silicone oil, or the above Mixtures of silicone oils can be used. Several vinyl silicone oils with different viscosities can be mixed to adjust to the required viscosity. The linear vinyl silicone oil with two vinyl functional groups on each polysiloxane molecule is more suitable, and the vinyl content is 0.05 mol%-0.5 mol %;

[0039] (2) Cross-linking agent methyl hydrogen-containing silicone oil: 0.5-10% by weight, viscosity 20-50 centipoise, hydrogen content 0.3%-1.0%, hydrogen atoms on the methyl silicone o...

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PUM

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Abstract

The invention discloses a two-component addition type room temperature vulcanized silicone rubber for manufacturing a handprint mold and a footprint mold, which comprises a basic component and a catalyst component, wherein the volume ratio of the basic component to the catalyst component is 1-3:1; the basic component comprises the following raw materials: 40-80% of vinyl silicone oil, 0.5-10% of methyl hydrogen silicone fluid of cross-linking agent, 0.01-0.5% of inhibitor, 3-15% of releasing agent, 1-10% of plasticizer and 10-60% packing; and the catalyst component comprises the following raw materials: 40-80% of vinyl silicone oil, 3-15% of methyl vinyl siloxane coordination platinum complex, 3-15% of releasing agent, 1-10% of plasticizer and 10-60% of packing. The invention has convenience and safety.

Description

technical field [0001] The invention relates to the field of silicone rubber, in particular to a two-component room temperature vulcanized silicone rubber for making handprint molds and footprint molds. Background technique [0002] Addition room temperature vulcanized silicone rubber is divided into two components before sulfur (curing), one component is mainly vinyl silicone oil and methyl hydrogen-containing silicone oil crosslinking agent, and the other component is mainly a platinum complex catalyst. When using, mix the two components evenly in a certain proportion, and cure at room temperature. The curing time varies with the formula, ranging from a few minutes to several hours. Two-component addition type room temperature vulcanized silicone rubber vulcanization (curing) reaction principle is ene hydrogen addition reaction, the vinyl group on the vinyl silicone oil molecule is catalyzed by the platinum complex with the silane hydrogen of the methyl hydrogen-containin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08K13/02C08K5/5425C08K5/549C08K3/36C08K3/22C08K3/26C08K3/34
Inventor 何流
Owner 合肥凯蒙新材料有限公司
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