Silicone sealant as well as preparation method and application thereof

A silicone sealant and compound technology, which is applied in the direction of adhesives, natural resin chemical modification, adhesive additives, etc., can solve the problems of reducing construction efficiency, the environment and the physical impact of workers, and achieve the effect of improving the bonding effect

Pending Publication Date: 2022-03-25
GUANGZHOU JOINTAS CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the surface of the thermal insulation board is not only porous, but also alkaline, and the general sealant needs to be coated with a primer to for

Method used

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  • Silicone sealant as well as preparation method and application thereof
  • Silicone sealant as well as preparation method and application thereof
  • Silicone sealant as well as preparation method and application thereof

Examples

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[0027] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will facilitate further understanding of the present invention in any form of techniques, but will not limit the invention in any form. It should be noted that several modifications and improvements can be made without departing from the concept of the present invention without departing from the concept of the present invention. These are all of the scope of protection of the present invention.

[0028] The raw materials used in the examples and the contraction are as follows:

[0029] Basic polymer-1: α, ω-dihydroxy polyimethylsiloxane, 5 ° C at 25 ° C, 500MPa.s, purchased from Warker Chemistry (China) Co., Ltd.

[0030] Basic polymer-2: α, ω-dihydroxy polyimethylsiloxane, 25 ° C 50000MPa.s, purchased from Ma map (Shanghai) Trading Co., Ltd;

[0031] Dimethylsilicone-1: 25 ° C is 5 MPa.s, purchased from Warker Chemical (China) Co., Ltd .;

[0032] Dimet...

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Abstract

The invention discloses a silicone sealant which comprises the following components in parts by weight: 100 parts of a base polymer; 5 to 20 parts of dimethyl silicone oil; 100 to 200 parts of a filling material; 9-20 parts of a cross-linking agent; 2-5.5 parts of a compound additive; based on the total weight of the silicone sealant, the content of the free chlorine element is less than or equal to 5ppm; the compound additive is prepared by reacting a compound A, rosin resin and an organic tin catalyst, and the weight ratio of the compound A to the rosin resin to the organic tin catalyst is (24-30): (7.5-3.5): 1. According to the silicone sealant, the compound A, the rosin resin and the organic tin catalyst are subjected to a reaction in advance, and then the content of free chlorine elements is inhibited to be 5 ppm or below, so that the silicone sealant can generate good adhesion to the thermal insulation integrated plate without prime coat during use.

Description

technical field [0001] The invention relates to the technical field of adhesive materials, in particular to a silicone sealant and its preparation method and application. Background technique [0002] The thermal insulation integrated board is a thermal insulation material composed of thermal insulation layer, strong composite glue, and decorative coating. It has the advantages of environmental protection, thermal insulation, waterproof and moisture-proof, and simple and convenient construction. [0003] The facing layer of the thermal insulation integrated board is calcium silicate or pressure cement board. The raw material of the calcium silicate board is a lightweight board made of silicon, calcium, pulp, fiber, etc. after high temperature pressing. Calcium silicate board has low thermal conductivity and good thermal insulation performance. The thermal insulation performance of the calcium silicate board is significantly better than that of ordinary brick walls, and it ...

Claims

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Application Information

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IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/08C09F1/04
CPCC09J183/04C09J11/04C09J11/06C09J11/08C09F1/04C08K2201/011C08K2003/265C08K2201/003C08K2201/014C08L83/04C08L93/04C08K3/26C08K5/544
Inventor 谢丽莎徐文远黄承相石正金
Owner GUANGZHOU JOINTAS CHEM
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