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High temperature-resisting anaerobic acrylic adhesive

An anaerobic acrylic and adhesive technology, applied in adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve problems such as decomposition, low flexibility, and decreased bonding strength

Inactive Publication Date: 2017-09-22
上海都昱新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the temperature requirements of anaerobic agents are generally around 150°C. The conventional method is to seek heat-resistant monomers or add organic or inorganic substances with better heat-resistant properties. Capacitance has a high price requirement, so the storage period of the product is short, and it will decompose after long-term storage; or it may cause a decrease in bonding strength and low flexibility.

Method used

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  • High temperature-resisting anaerobic acrylic adhesive
  • High temperature-resisting anaerobic acrylic adhesive
  • High temperature-resisting anaerobic acrylic adhesive

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preparation example Construction

[0039] The preparation raw material of described adhesive also comprises:

[0040] Inhibitor 0.01-10 parts;

[0041] Thixotropic agent 0.01-8 parts.

[0042] Acrylic oligomer

[0043] Acrylic oligomers are a type of reactive prepolymers that can provide most of the properties of adhesives. The most commonly used oligomers are divided into four categories: epoxy acrylates, polyurethane acrylates, polyester acrylates and acrylates.

[0044] In the present invention, the acrylic oligomer is an acrylate prepolymer and an epoxy acrylate prepolymer (the weight ratio is 5:1).

[0045] The epoxy acrylate prepolymer is prepared by reacting hyperbranched epoxy resin and (meth)acrylic acid.

[0046] Among the present invention, the preparation method of described epoxy acrylate prepolymer is as follows:

[0047] 1) Preparation of hyperbranched epoxy resin: using hyperbranched hydroxyl polyester and hexahydrophthalic anhydride according to the molar ratio of hydroxyl and anhydride 1:...

Embodiment approach

[0062] As an embodiment of the present invention, in parts by weight, the raw materials for the preparation of the adhesive include:

[0063]

[0064] The preparation raw material of described adhesive also comprises:

[0065] 3 parts of polymerization inhibitor;

[0066] Thixotropic agent 3 parts.

[0067] As an embodiment of the present invention, the raw material for the preparation of the high temperature resistant anaerobic acrylic adhesive also includes 0.5 parts by weight of 2,3,5,6,7,8-hexamethylenebicyclo[2.2.2]octane (2,3,5,6,7,8-hexamethylenebicyclo[2.2.2]octane), CAS No. 74772-12-6, purchased from Shenzhen Aituo Chemical Co., Ltd.

[0068] As an embodiment of the present invention, the raw material for the preparation of the high temperature resistant anaerobic acrylic adhesive further includes 1 part by weight of hyperbranched chitosan.

[0069] In the present invention, the preparation method of the hyperbranched chitosan is as follows: dissolving 50g of ch...

Embodiment approach 1

[0077] Embodiment 1: This embodiment provides a high-temperature-resistant anaerobic acrylic adhesive. In parts by weight, the preparation raw materials of the adhesive include:

[0078]

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Abstract

The invention provides a high temperature-resisting anaerobic acrylic adhesive. The high temperature-resisting anaerobic acrylic adhesive is prepared from the following raw materials in parts by weight: 100 parts of an acrylic oligomer, 1 to 13 parts of an initiator, 0.01 to 8 parts of an accelerator, 0.01 to 5 parts of an assistant accelerator and 0.1 to 6 parts of a stabilizer.

Description

technical field [0001] The invention relates to the field of adhesives and adhesive products, in particular to a high-temperature resistant anaerobic acrylic adhesive. technical background [0002] Acrylic adhesives have a wide range of raw materials, simple preparation process, rapid drying and molding, good transparency, good bonding performance to various materials, and good weather resistance, water resistance, and chemical resistance. In particular, it also has excellent adhesion to hydrophobic surface materials. This rubber adhesive has better atmospheric aging resistance, is easy to use, and has good durability of bonded joints. [0003] In addition to meeting certain temperature requirements, high temperature resistant anaerobic adhesives must also meet the following comprehensive properties: (1) have good thermophysical and thermochemical stability; (2) have good processability; (3) at higher temperatures Under the temperature and working conditions of use, it has ...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J11/06
Inventor 许期斌张海泉
Owner 上海都昱新材料科技有限公司