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Easily-detached anaerobic adhesive with controllable thread friction coefficients and preparation method of easily-detached anaerobic adhesive

A friction coefficient and easy disassembly technology, applied in the field of anaerobic glue, can solve the problems of the adverse effect of glue coloring, the reduction of friction coefficient, the difficulty of disassembly of fasteners, etc., to achieve controllable strength and easy disassembly. , the effect of reducing the coefficient of friction

Inactive Publication Date: 2017-05-31
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are also some patents on thread locking and sealing anaerobic adhesives at home and abroad, such as a thread locking and sealing anaerobic adhesive mentioned in US Patent US8198345B2, although the thread locking and sealing anaerobic adhesive can be improved by adding polyethylene powder and graphite powder The purpose of the lubricity of the glue, but whether its lubricity can reduce the friction coefficient of the fastener to the required range is still unknown, and there is no mention of the ease of disassembly of the fastener after curing; in addition, the graphite of the lamellar structure The introduction will cause the diffusion of oxygen in the glue to produce a barrier effect, which will affect the storage stability of the glue, and the black graphite will also have an adverse effect on the coloring of the glue in the later stage

Method used

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  • Easily-detached anaerobic adhesive with controllable thread friction coefficients and preparation method of easily-detached anaerobic adhesive

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preparation example Construction

[0027] The invention also discloses a method for preparing an anaerobic adhesive with an easily detachable and controllable thread friction coefficient, which includes the following steps:

[0028] In parts by mass, 100 parts of acrylate monomer, 5-50 parts of saturated borate lubricant and / or fluorinated polyether lubricant, 0.02-1 part of polymerization inhibitor, 0.1-5 parts of accelerator additive, 0.3-5 parts of co-accelerator, and 0.01-0.1 part of metal ion chelating agent are sequentially added to the glue-making container, and stirred at 5°C-35°C for 30-90min until completely dissolved and uniform;

[0029] Add 0.1 to 5 parts of organic peroxide initiator and 0 to 10 parts of fumed silica into the rubber-making container, and stir at 5°C to 35°C for 20 to 40 minutes until uniform dispersion to obtain a crude product;

[0030] Vacuum degassing or centrifugal degassing: (vacuum degassing time 5min, vacuum pressure controlled at -0.09~-0.07MPa; centrifugal degassing time ...

Embodiment 1

[0033] The easy-to-disassemble controllable thread friction coefficient anaerobic adhesive provided in this embodiment includes

[0034] 100 parts of polyethylene glycol 200 dimethacrylate;

[0035] 5 parts of perfluoropolyether FI04;

[0036] 1.0 parts of 1,4-naphthoquinone;

[0037] 0.1 parts of N-acetylphenylhydrazine;

[0038] 2 parts of o-sulfonyl benzimide;

[0039] 0.01 parts of EDTA tetrasodium salt;

[0040] 1.8 parts of cumene hydroperoxide.

[0041] The preparation process of the above-mentioned anaerobic adhesive with easy disassembly and controllable thread friction coefficient is as follows:

[0042] 5 parts of perfluoropolyether FI04, 50 parts of polyethylene glycol 200 dimethacrylate, 50 parts of bisphenol A epoxy dimethacrylate, 1.0 parts of 1,4-naphthoquinone, 0.1 parts Add N-acetylphenylhydrazine, 2 parts of o-sulfonylbenzimide, and 0.01 part of EDTA tetrasodium salt into the gel-making container in sequence, and stir at 30°C for 90 minutes until compl...

Embodiment 2

[0044] The easy-to-disassemble controllable thread friction coefficient anaerobic adhesive provided in this embodiment includes

[0045]20 parts of hydroxyethyl methacrylate, 80 parts of polyethylene glycol 200 dimethacrylate;

[0046] 20 parts of perfluoropolyether FI80;

[0047] 0.02 parts of 1,4-naphthoquinone;

[0048] 0.5 parts of N-acetylphenylhydrazine;

[0049] 1.0 parts of o-sulfonyl benzimide;

[0050] 0.01 parts of EDTA tetrasodium salt;

[0051] 2.0 parts of cumene hydroperoxide;

[0052] 1.5 parts fumed silica.

[0053] The preparation process of the above-mentioned easy-detachable and controllable thread friction coefficient anaerobic adhesive is as follows:

[0054] 20 parts of perfluoropolyether FI80, 20 parts of hydroxyethyl methacrylate, 80 parts of polyethylene glycol 200 dimethacrylate, 0.02 parts of 1,4-naphthoquinone, 0.5 parts of N-acetophenone Add hydrazine, 1.0 parts of o-sulfonylbenzimide, and 0.01 parts of EDTA tetrasodium salt into the gel-ma...

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Abstract

The invention discloses an easily-detached anaerobic adhesive with a controllable thread friction coefficient, relating to the technical field of the anaerobic adhesive. The easily-detached anaerobic adhesive contains the following components in parts by weight: 100 parts of acrylate monomers, 5-50 parts of a saturated borate lubricant and / or a fluorinated polyether lubricant, 0.02-1 part of a polymerization inhibitor, 0.1-5 parts of an accelerant, 0.3-5 parts of a promotion aid, 0.01-0.1 part of a metal ion chelating agent, 0.1-5 parts of an organic peroxide initiator and 0-10 parts of fumed silica. By adding the saturated borate lubricant and / or the fluorinated polyether lubricant, the friction coefficient of a fastener during the fastening can be reduced and can be stably controlled at a certain range, and the storage stability of adhesive liquid and the later-period coloring of the adhesive liquid are not influenced; and meanwhile, the strength of the anaerobic adhesive is controllable, and the detachment is easy. The invention further discloses a preparation method of the easily-detached anaerobic adhesive with the controllable thread friction coefficient.

Description

technical field [0001] The invention relates to the technical field of anaerobic adhesives, in particular to an anaerobic adhesive with easily detachable and controllable thread friction coefficient and a preparation method thereof. Background technique [0002] At present, in order to ensure the accuracy and reliability of threaded fastener assembly, many industries (such as automobiles, wind power, electric power, bridges) have strict requirements on the friction coefficient of threaded fasteners used to connect key parts of assembly. Generally within 0.08 to 0.18. However, the friction coefficient of conventionally processed fasteners without lubrication treatment is generally much higher than this range. Generally, fastener manufacturers will use dip-coated lubricating layers (such as water-based wax, etc.) to reduce the friction coefficient to the specified range, but using this A weak boundary layer will be formed on the surface of the fasteners of this process. Anaer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J163/10C09J11/06C09J11/08
CPCC08K2201/014C08L2205/025C08L2205/03C09J4/06C09J11/06C09J11/08C09J163/10C09J171/00C08L71/00C08L63/10C08K5/55
Inventor 艾少华赵景左韩胜利吴正明章锋
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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