Thermosetting acrylic structural adhesive and preparation method

An acrylate and acrylate technology, applied in the field of thermosetting acrylate structural adhesive and preparation, can solve the problems of rapid curing and storage stability contradiction, toxicity and irritation, affecting the large-scale application of SGA, etc., and achieve thermal curing. The effect of low temperature required, excellent performance and short thermal curing positioning time

Inactive Publication Date: 2010-07-21
TONSAN ADHESIVES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are still some deficiencies, mainly: strong odor, contradiction between fast curing and storage st

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Acrylate monomers are selected from 1-10 parts of methyl methacrylate, 1-10 parts of methacrylic acid, 10-20 parts of ethoxylated bisphenol A diacrylate, 10-30 parts of epoxy acrylate and 10-30 parts of hydroxyethyl methacrylate, 5-15 parts of neoprene rubber and 5-15 parts of ABS resin are used as the toughening and tackifying agent, and 1-10 parts of benzoyl peroxide are used as peroxide 0.5-5 parts of tertiary amine are selected as reducing agent, 0.1-2 parts of 2,6-di-tert-butyl-4-methylphenol and 0.1-1 part of p-benzoquinone are selected as stabilizer, and 0.1-0.5 parts of pigment are selected. , 1 part to 5 parts of fumed white carbon black, 0.1 part to 1 part of paraffin wax, the above-mentioned methyl methacrylate, methacrylic acid, ethoxylated bisphenol A diacrylate, epoxy acrylate and hydroxyethyl methacrylate After mixing evenly, add 2,6-di-tert-butyl-4-methylphenol and p-benzoquinone and mix evenly, then add neoprene and ABS resin, and make double parts of t...

Embodiment 2

[0022] The acrylate monomers are 1-15 parts of methyl methacrylate, 1-15 parts of triethylene glycol diacrylate, 10-30 parts of ethoxylated bisphenol A diacrylate, hydroxyethyl methacrylate 10 to 30 parts, 10 to 30 parts of hydroxypropyl methacrylate and 1 to 10 parts of methacrylic acid, 10 to 30 parts of nitrile rubber and 10 to 30 parts of ABS resin are used as toughening and tackifying agents. The peroxide is 1-10 parts of cumene hydrogen peroxide, the reducing agent is 0.1-5 parts of ferrous chloride, and the stabilizer is 0.1-2 parts of 2,6-di-tert-butyl-4-methylphenol. 0.1-2 parts of MEHQ, 0.1-2 parts of hydroquinone, 0.1-0.5 parts of pigment, 1-5 parts of fumed silica. Method is identical with the method of embodiment 1, and each component concrete numerical value sees the following table:

[0023] component name

[0024] component name

[0025] According to GB / T 7124-2008 Determination of Tensile Shear Strength of Adhesives, the shear strength at ...

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Abstract

The invention discloses a thermosetting acrylic structural adhesive and a preparation method thereof. Based on 100 parts by weight, the structural adhesive comprises the following components in parts by mass: 55-80 parts of acrylic monomers, 10-30 parts of toughening agent, 0.1-02 parts of stabilizing agent, 1-10 parts of peroxide, 0.1-5 parts of reducing agent, 0.1-0.5 part of paint, 1-5 parts of fumed silica, and 1-5 parts of other auxiliary agent. The preparation method comprises the following steps: (a) mixing the acrylic monomers uniformly; (b) adding the stabilizing agent; (c) adding the toughening agent to the mixture to prepare A component premix compound and B component premix compound of structural adhesive with similar components; (d) respectively adding the peroxide and the reducing agent to the A component premix compound and the B component premix compound; (e) adding the paint, the fumed silica and the auxiliary agent of paraffin to prepare the bi-component thermosetting acrylic structural adhesive by vacuum deaeration.

Description

technical field [0001] The invention relates to a thermosetting acrylate structural adhesive and a preparation method thereof. Background technique [0002] The second-generation acrylate structural adhesive, referred to as SGA, is a fully reactive two-component adhesive. Due to many advantages: rapid curing at room temperature and adjustable curing speed; two-component and no strict metering, easy to use and conducive to automation; no strict surface treatment, and oil surface adhesion; a wide range of bonding materials, there is Conducive to the assembly of profiled materials; high mechanical strength; wide adjustment range, etc. Therefore, only 20 years since its appearance in the mid-1970s, SGA has developed rapidly. But there are still some deficiencies, mainly including: strong odor, contradiction between fast curing and storage stability, toxicity and irritation, too short open time, etc., which affect the large-scale application of SGA. At the same time, with the ...

Claims

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Application Information

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IPC IPC(8): C09J133/14C09J111/00C09J155/02C09J109/02
Inventor 杜美娜李印柏翟海潮林新松
Owner TONSAN ADHESIVES INC
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