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Silicone sealant and preparation method thereof

A silicone sealant and silane-based technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the serious problem of white oil leakage, achieve the improvement of oil leakage, reduce the content, The effect of reducing the risk of oil seepage

Pending Publication Date: 2022-02-25
GUANGZHOU JOINTAS CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application CN105482769A discloses a silicone sealant plasticizer, in which silanized white oil is added as a plasticizer to improve the oil leakage phenomenon, but it is found through experiments that the actual oil leakage problem of white oil will be more serious

Method used

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  • Silicone sealant and preparation method thereof
  • Silicone sealant and preparation method thereof
  • Silicone sealant and preparation method thereof

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0027] The raw materials used in embodiment and comparative example are as follows:

[0028] Base polymer A: α,ω-dihydroxy polydimethylsiloxane, viscosity at 25°C is 20000mpa.s, purchased from Wacker Chemicals (China) Co., Ltd.;

[0029] Base polymer B: α,ω-dihydroxy polydimethylsiloxane, viscosity at 25°C is 50,000mpa.s, purchased from Momentive (Shanghai) Trading Co., Ltd.;

[0030] Simethicone oil A: Viscosity at 25°C is 100mpa.s, purchased from Wacker Chemie (China) Co., Ltd. Dimethicone oil ...

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Abstract

The invention discloses a silicone sealant. The silicone sealant comprises, by weight, 100 parts of alpha, omega-dihydroxy polydimethylsiloxane; 20-185 parts of a filling material; 9-22 parts of a cross-linking agent; 1-2 parts of a coupling agent; 0.03-0.3 part of a catalyst; and 3-25 parts of dimethyl silicone oil and branched chain silicone oil. The dimethyl silicone oil and the branched chain silicone oil are compounded, so that the oil leakage problem generally existing in the silicone adhesive of an oxime type system can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of adhesive materials, in particular to a silicone sealant and a preparation method thereof. Background technique [0002] For more than 30 years, along with the continuous and rapid development of my country's national economy and the acceleration of urbanization, my country's architectural curtain wall industry has achieved leapfrog development from scratch, from foreign dominance to domestic enterprises, and from imitation and introduction to independent innovation , By the beginning of the 21st century, my country has developed into the world's largest producer and user of curtain wall industry. From the perspective of market application, with the rapid advancement of China's urbanization process, a large number of large-scale public buildings, commercial buildings and high-end residences continue to emerge, which is an important reason for the rapid growth of China's demand for architectural curtain wall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J11/04
CPCC09J183/04C09J11/04C08K2003/265C08L83/04C08K3/26C08K3/36
Inventor 谢丽莎徐文远黄承相石正金
Owner GUANGZHOU JOINTAS CHEM
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