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Bi-component acrylic ester adhesive

An acrylic and adhesive technology, applied in the direction of adhesives, non-polymer organic compound adhesives, etc., can solve the problems of easy flow, unsuitable for bonding, low viscosity, etc., and achieve convenient sizing, good thixotropic performance, and comprehensive The effect of excellent performance

Inactive Publication Date: 2009-03-25
GUANGDONG HENGDA NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current domestic second-generation acrylate adhesive (SGA) generally has a low viscosity (about 5000cps), small thixotropy (thixotropic index about 1-1.5), and is easy to flow, so it is not suitable for bonding on the facade. It is even more unsuitable for bonding in places with large gaps and on facades with large areas.

Method used

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  • Bi-component acrylic ester adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] According to the selected components and contents of component A in Table 1, put methyl methacrylate, methacrylic acid and organoboron moisturizing soil into the reaction kettle, stir at room temperature for 1-10 hours to make it evenly dispersed, and then add chlorine Sulfonated polyethylene, ABS and hydroquinone, stir for 24 to 48 hours to dissolve completely, and finally put in cumene hydrogen peroxide, stir for 1 to 10 hours to make it evenly dispersed, then the A component can be prepared , The prepared component A is sealed and packaged separately.

[0026] According to the selected components and content of component B in Table 1, put methyl methacrylate, methacrylic acid and organoboron moisturizing soil into the reaction kettle, fully stir for 1-10 hours to make it evenly dispersed, and then add chlorine Sulfonated polyethylene, ABS and substituted thiourea are stirred for 24 to 48 hours to dissolve completely. Then the B component can be prepared, and the prepared...

Embodiment 2

[0032] Repeat the preparation method of Example 1 to prepare the required A and B components according to the selected components and contents of the A and B components in Table 2 below. However, the selection of elastomers, thixotropic agents, accelerators and stabilizers is different. Nitrile rubber is used instead of chlorosulfonated polyethylene, gas-phase white carbon black is used instead of organic boron soil, and aldehyde amine condensate is used instead of thiourea. The stabilizer is a mixture of 2,6-di-tert-butyl-4-methylphenol and hydroquinone.

[0033] The performance test data of the prepared two-component acrylate adhesive is shown in Table 7

[0034] Table 2

[0035] Ratio A component %wt B component %wt Methyl methacrylate 58.9 55.4 Methacrylate 12.5 9.2 ABS 5 10 Nitrile rubber 15 18.4 Fumed white carbon black 3 2 Aldamine Condensate 5 2,6-Di-tert-butyl-4-methylphenol 1.5 Quinol 0.1 Cumene...

Embodiment 3

[0037] Repeat the preparation method of Example 1 to prepare the required A and B components according to the selected components and contents of the A and B components in Table 3 below. However, the selection of monomers, elastomers, thixotropic agents, stabilizers and peroxides are different. The monomer uses a mixture of methyl methacrylate and hydroxypropyl methacrylate, and nitrile rubber is used instead of chlorosulfonated polycarbonate. Ethylene, hydrogenated castor oil instead of organoboronite, the stabilizer is a mixture of 2,6-di-tert-butyl-4-methylphenol and hydroquinone, and tert-butyl hydroperoxide is used instead of cumene hydroperoxide.

[0038] The performance test data of the prepared two-component acrylate adhesive is shown in Table 7

[0039] table 3

[0040] Ratio A component %wt B component %wt Methyl methacrylate 48.4 51.3 Hydroxypropyl methacrylate 12.1 17.1 Methacrylate 6 4 ABS 12 8.1 Nitrile rubber 13.8 15....

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PUM

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Abstract

The invention relates to the technical filed of acrylate adhesives. A bi-component acrylate adhesive comprises two components of A and B with equal proportion, wherein, the component A comprises the following components calculated by mass percentage: (a) 40 percent to 80 percent of acrylate monomer comprising at least one vinyl; (b) 0 percent to 20 percent of methacrylic acid; (c) 0 percent to 50 percent of prepolymer; (d) 0 percent to 40 percent of elastomer; (e) 0 percent to 40 percent of toughened resin; (f) 0.01 percent to 3 percent of stabilizer; (g) 0 percent to 5 percent of thixotropic agent; and (h) 1 percent to 5 percent of peroxide; and the component B comprises the following components calculated by mass percentage: (a) 50 percent to 90 percent of acrylate monomer comprising at least one vinyl; (b) 0 percent to 10 percent of methacrylic acid; (c) 0 percent to 40 percent of elastomer; (d) 0 percent to 50 percent of prepolymer; (e) 0 percent to 40 percent of toughened resin; (f) 0 percent to 5 percent of thixotropic agent; and (g) 1 percent to 10 percent of accelerant. The adhesive has higher viscosity, larger thixotropic index, and good tensile-shear strength and shearing-impact strength, thereby being convenient for application when in use and not easy to flow after application, and meeting the adhesive requirements and effects of elevation or places with larger gaps.

Description

Technical field [0001] The invention relates to the technical field of acrylic adhesives. Background technique [0002] The second-generation acrylate adhesive (SGA) is a two-component adhesive based on the free radical graft copolymerization of (meth)acrylate. It has fast curing, adjustable curing speed, high strength, oily surface bonding, and The advantages of wide range of bonding materials and convenient application of glue are widely used in structural bonding, assembly, assembly and repair in industries such as automobiles, electronic appliances, machinery, construction and furniture, and are also used in aviation, aerospace, ship and civil markets. [0003] However, the current domestic second-generation acrylate adhesives (SGA) generally have low viscosity (about 5000 cps), small thixotropy (thixotropy index about 1 to 1.5), easy to flow, and are not suitable for bonding on the facade. It is even more unsuitable for bonding on occasions with large gaps and on facades wit...

Claims

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Application Information

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IPC IPC(8): C09J4/06
Inventor 张明智龙正宇周为民
Owner GUANGDONG HENGDA NEW MATERIALS TECH
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