Low temperature detachable anaerobic adhesive and method for preparing the same

An anaerobic adhesive, low temperature technology, applied in the direction of adhesives, graft polymer adhesives, adhesive types, etc., can solve the problems of high temperature resistant large thread diameter fasteners, lowering, difficulty in disassembly of components, etc., to ensure Adhesive strength and performance, high efficiency, low cost effect

Inactive Publication Date: 2006-07-19
HEILONGJIANG INST OF PETROCHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem of poor maintainability of existing anaerobic adhesives, difficulty in disassembling components, especially high-strength anaerobic adhesives made of materials that are not resistant to high temperatures and large thread diameter locking pieces cannot be disassembled and the bonding reliability of low- and medium-strength anaerobic adhesives is reduced. In view of the above problems, a low-temperature heating detachable anaerobic adhesive and its preparation method are now provided. The technical solution to solve the above problems is as follows:

Method used

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  • Low temperature detachable anaerobic adhesive and method for preparing the same
  • Low temperature detachable anaerobic adhesive and method for preparing the same
  • Low temperature detachable anaerobic adhesive and method for preparing the same

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specific Embodiment approach 1

[0011] Specific embodiment one: This embodiment consists of 50 to 95 parts of methacrylate diester monomer, 10 to 50 parts of unsaturated polyester, 0.1 to 5 parts of accelerator, and 0.1 to 5 parts of o-benzenesulfonimide in parts by weight. 0.01-2 parts of stabilizer, 5-50 parts of modifier, 0.1-5 parts of fumed silica and 1-10 parts of organic peroxide.

[0012] The above-mentioned methacrylate diester monomer is selected from ethylene glycol methacrylate, polyethylene glycol dimethacrylate, ethoxylated bisphenol A dimethacrylate diester, trimethylolpropane trimethacrylate ester, hydroxypropyl methacrylate or various epoxy acrylate monomers;

[0013] Fumaric acid bisphenol A resin is selected as the unsaturated polyester;

[0014] The accelerator can be selected from acetylphenylhydrazine, benzohydrazine, N,N-dimethyl-p-toluidine, N,N-diethylaniline or triethylamine;

[0015] Stabilizers are selected from oxalic acid, ethylenediaminetetraacetic acid (EDTA), o-aminophenol,...

specific Embodiment approach 2

[0019] Specific embodiment two: the present embodiment consists of 50 to 70 parts of methacrylate diester monomer, 10 to 30 parts of unsaturated polyester, 0.1 to 2.5 parts of accelerator, and 0.1 to 2.5 parts of o-benzenesulfonimide in parts by weight. 2.5 parts, 0.01-1 part of stabilizer, 5-25 parts of modifier, 0.1-2.5 parts of fumed silica and 1-5 parts of organic peroxide.

specific Embodiment approach 3

[0020] Specific embodiment three: In this embodiment, it consists of 71 to 90 parts of methacrylate diester monomer, 31 to 50 parts of unsaturated polyester, 2.6 to 5 parts of accelerator, and 2.6 to 2.6 parts of o-benzenesulfonimide in parts by weight. 5 parts, 1.1-2 parts of stabilizer, 26-50 parts of modifier, 2.6-5 parts of fumed silica and 6-10 parts of organic peroxide.

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Abstract

The preparation method for a low temperature detachable anaerobic glum overcomes the poor maintainability, hard assembly to non-resistance heat material and part and depressed reliability, and comprises: A. by weight share, mixing 50-95 methyl dimethacrylate and 0.01-2 stabilizer to dissolve at 45-55Deg; B. adding 0.1-5 accelerant and 0.1-5 o-benzene sulfinamide; C. adding 10-15 unsaturated polyester, 5-50 modifier and 0.1-5 gas-phase SiO2 into the product in B, and cooling to room temperature; D. adding 1-10 oxide to stir evenly. This invention has little effect to adhesive strength and high benefit with low cost.

Description

technical field [0001] The invention relates to a detachable anaerobic adhesive and a preparation method thereof. Background technique [0002] Before the emergence of chemical locking and sealant technology, people used a variety of mechanical methods for thread loosening. Loosening is basically prevented, and leakage at the thread cannot be avoided. The birth of anaerobic adhesives has solved the above problems. However, after adopting the adhesive bonding technology, it is difficult to disassemble the threaded parts and flange parts during product maintenance, especially the high-strength anaerobic adhesive and the large thread diameter locking parts cannot be disassembled at room temperature. At present, the high-temperature heating disassembly method is mainly used. The heating must reach above 200°C, and sometimes it must reach 300-400°C to disassemble. However, some parts are limited by materials (such as cast aluminum, magnesium alloy) and cannot be heated at high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/08
Inventor 王刚刘晓辉李欣
Owner HEILONGJIANG INST OF PETROCHEM
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