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A lubricating type pre-coated thread locking sealant and preparation method thereof

A technology of sealant and thread, which is applied in the field of lubricating pre-coated thread-locking sealant and its preparation, can solve the problem of not being able to improve the lubricity of pre-coated thread-locking sealant and affecting the adhesion of pre-coated thread-locking sealant film. Force and torque strength, no mention of lubricity of pre-applied threadlocker sealant

Active Publication Date: 2017-10-31
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although U.S. Patent US8198345B2 mentions the lubricity of anaerobic adhesives, which is achieved by adding polyethylene powder and graphite powder, it does not mention the lubricity of pre-coated thread locking sealants
It is well known that adding polyethylene powder and graphite powder to pre-applied thread locking sealant will seriously affect the film adhesion and torque strength of pre-applied thread locking sealant
Therefore, even if the technical solution disclosed in US Pat.

Method used

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  • A lubricating type pre-coated thread locking sealant and preparation method thereof
  • A lubricating type pre-coated thread locking sealant and preparation method thereof
  • A lubricating type pre-coated thread locking sealant and preparation method thereof

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preparation example Construction

[0061] The embodiment of the present invention also provides a preparation method of the lubricating type pre-coated thread locking sealant, comprising the following steps:

[0062] Prepare component A and component B, the order of preparing component A and component B is not limited, component A can be prepared first, component B can be prepared first, or component A and component B can be prepared at the same time;

[0063] The preparation process of A component is as follows:

[0064] Prepare the self-lubricating monomer first: the reaction vessel is connected in series with a water separator, a condenser, and a vacuum system; according to the different structural formulas of the self-lubricating monomer to be prepared, two methods can be used to prepare the self-lubricating monomer:

[0065] Method 1: Prepare basic raw materials: boric acid and hydroxyacrylate, wherein the molar ratio of boric acid to hydroxyacrylate is 1:3; put in boric acid and hydroxyacrylate, and then ...

Embodiment 1

[0076] The lubricated pre-coated thread locking sealant provided in this embodiment includes component A and component B, and component A and component B are mixed in a mass ratio of 28:1; in terms of mass percentage Wt, component A includes 46% deionized water, 6% polyurethane thickening emulsion (thickening emulsifier), 0.5% propyl ferrocene (polymerization accelerator), 5% calcium carbonate (filler), 10% auto Lubricating type monomer, 31% polyethylene glycol 200 dimethacrylate, 0.5% pigment, wherein, the structural formula of self-lubricating type monomer is:

[0077]

[0078] Component B is microcapsule initiator.

[0079] The preparation process of the above lubricated pre-coated thread locking sealant is as follows:

[0080] Prepare Part A:

[0081] Prepare the self-lubricating monomer first: the reaction vessel is connected in series with a water separator, a condenser, and a vacuum system, and the basic raw materials are prepared: boric acid, hydroxyethyl methacry...

Embodiment 2

[0086] The lubricated pre-coated thread locking sealant provided in this embodiment includes component A and component B, and component A and component B are mixed in a mass ratio of 23:1; in terms of mass percentage Wt, component A includes 46% of deionized water, 6% of high molecular weight cellulose (thickening emulsifier), 0.5% of ferrocene (polymerization accelerator), 5% of silica powder (filler), 30% of self-lubricating single Body, 11% ethoxylated bisphenol A dimethacrylate, 1.5% solvent yellow (pigment), wherein, the self-lubricating monomer structural formula is the same as the self-lubricating monomer structural formula in Example 1; Group B Divided into microcapsule initiators.

[0087] The preparation process of the above lubricated pre-coated thread locking sealant is as follows:

[0088] Preparation of component B: The preparation process is the same as in Example 1.

[0089] Prepare Part A:

[0090] Prepare the self-lubricating monomer first: the reaction ve...

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Abstract

The invention discloses a lubricating type pre-coated thread locking sealant and a preparation method thereof, and relates to the field of pre-coated thread locking sealant. The locking sealant includes component A and component B. The components A and B are mixed in any mass ratio. In terms of mass percentage, the component A includes 30% to 60% water and 3% to 10% thickening Emulsifier, 0.01%~3% polymerization accelerator, 3%~10% filler, 10%~50% boron-containing acrylate self-lubricating monomer in the molecular chain, 0~40% boron-free acrylate Monomer, 0-2% pigment; component B is a microcapsule initiator with benzoyl peroxide as the core material and urea-formaldehyde resin as the wall material. In the preparation process of the present invention, boron-containing acrylate self-lubricating monomers are added in the molecular chain, which can improve the lubricity of the dried adhesive film, reduce the friction coefficient, reduce the change of the torque coefficient K value of the fastener, and greatly reduce the The dispersion of K value is beneficial to the assembly process.

Description

technical field [0001] The invention relates to the field of pre-coated thread locking sealant, in particular to a lubricating pre-coated thread locking sealant and a preparation method thereof. Background technique [0002] Pre-applied thread locking sealant, also known as dry film microcapsule thread locking sealant, has been widely used and recognized in various machinery industries. As a new reactive thread locking sealant, it has begun to partially replace traditional liquid Oxygen glue. [0003] At present, the conventional pre-applied thread locking sealant has poor lubricity, and there is a problem of increasing the friction coefficient of the fastener, and the torque coefficient of the fastener will increase significantly after the glue is applied. The torque coefficient K is an important data in the bolt tightening process, which is mainly determined by the friction coefficient of the fastener. According to T=KDF (T is the tightening torque, D is the nominal diam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/08C09K3/10
Inventor 艾少华赵景左韩胜利
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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