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Adhesive prepared based on amino-containing siloxane and its preparation and use method

A siloxane, amino-containing technology, applied in adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve problems such as large by-products, and achieve high synthesis efficiency, simple synthesis conditions, and high bonding strength. Effect

Active Publication Date: 2020-10-13
SHANDONG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the catalyst used in the cohydrolysis process of the phenylproxazine group-containing silane monomer and dimethyldiethoxysilane will lead to cross-linking of the benzoxazine group, resulting in a large amount of by-products

Method used

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  • Adhesive prepared based on amino-containing siloxane and its preparation and use method
  • Adhesive prepared based on amino-containing siloxane and its preparation and use method
  • Adhesive prepared based on amino-containing siloxane and its preparation and use method

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Embodiment Construction

[0014] Technical scheme of the present invention is as follows:

[0015] A method for preparing adhesive based on amino-containing siloxane, comprising the steps of:

[0016] The first step is to mix the amino-containing siloxane with the compound containing both aldehyde (ketone) group and phenolic hydroxyl group under the condition of using solvent or not using solvent, under the condition of using catalyst A or not using catalyst A , convert the amino group into a Schiff base group, and at the same time introduce the phenolic hydroxyl group into the siloxane molecule to obtain the siloxane containing the phenolic hydroxyl group;

[0017] Further, the siloxane containing phenolic hydroxyl group is mixed with aldehyde compounds and ammonia (amine) compounds to react to prepare the adhesive. The adhesive is benzoxazine group-containing siloxane.

[0018] The corresponding reaction equation of the siloxane containing benzoxazine group that the present invention makes is as fo...

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Abstract

The invention provides an adhesive prepared based on amino siloxane, and a preparation and application method thereof. The amino siloxane is subjected to two-step reaction to prepare benzoxazine group-containing siloxane. The method has simple and controllable synthesis conditions and high synthesis efficiency; the benzoxazine group-containing siloxane synthesized by the method can be directly used as the adhesive, and has high bonding strength; the benzoxazine group-containing siloxane synthesized by the method can be also used as a base formula, and serves as the adhesive after other fillersare added so as to meet the different needs of various special occasions.

Description

technical field [0001] The invention relates to a method for preparing an adhesive starting from amino group-containing siloxane, and belongs to the field of organosilicon polymer synthesis and material preparation. Background technique [0002] Most silicone polymer materials have a series of excellent properties such as high temperature resistance and low temperature resistance, water repellency, moisture resistance, weather aging resistance, high insulation, low dielectric loss, etc., and have become important polymer materials in the national economy. Silicone materials can be made into various application products to meet the needs of various occasions. Due to the unique characteristics of silicone materials, silicone adhesives as structural adhesives are not comparable to adhesives such as epoxy, phenolic, acrylic, polyimide, etc.; but as non-structural adhesives, Silicone adhesives are widely used and even irreplaceable in some occasions, such as the bonding of space...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/08C09J11/04C08G77/26
CPCC08G77/26C08K2003/2272C09J11/04C09J183/08C08K3/36C08K3/22
Inventor 卢海峰孙安邦刘少杰鲁文君冯圣玉杨金云王冬冬曾庆铭张迪董志超
Owner SHANDONG UNIV
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