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An acrylic structural adhesive with good impact resistance

An acrylate and impact resistance technology, which is applied in the field of acrylate structural adhesives, can solve the problems of poor high temperature and high humidity resistance, low forward drawing strength, and poor impact resistance, and achieve good high temperature and high humidity resistance, positive High tensile strength and good impact resistance

Active Publication Date: 2017-12-12
信泰永合(烟台)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, the traditional 1:1 (volume ratio) acrylic glue is used for the bonding of the shell, but it has low initial bonding strength, slow curing speed, poor impact resistance, low positive pull-out strength, and poor high temperature and high humidity resistance, etc. shortcoming

Method used

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  • An acrylic structural adhesive with good impact resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An acrylic structural adhesive with good impact resistance, its components are composed of A component and B component in a volume ratio of 10:1;

[0029] The A component described therein includes by weight percentage: 40% methyl methacrylate, 16.4% modified urethane acrylate, 7% methacrylic acid, 35% ABS resin, N,N-dimethyl p-toluidine 1.5% and hydroquinone 0.1%;

[0030] The B component includes by weight percentage: 30% of E-51 epoxy resin, 10% of polyether polyol, 20% of benzoate, 30% of benzoyl peroxide and 10% of calcium carbonate.

[0031] The preparation method of the above-mentioned good acrylate structural adhesive of impact resistance, the steps are as follows:

[0032] (1) Weigh 40% methyl methacrylate, 16.4% modified urethane acrylate and 7% methacrylic acid, add them to the double planetary power mixer in turn, stir for 30 minutes at a speed of 500-1000r / min; then add 35 %ABS resin and 1.5% N,N-dimethyl-p-toluidine, stirred for 1h, cooled to 25°C with c...

Embodiment 2

[0036] An acrylic structural adhesive with good impact resistance, its components are composed of A component and B component in a volume ratio of 10:1;

[0037] The A component described therein includes by weight percentage: 28.9% of methyl methacrylate, 10% of hydroxyethyl methacrylate, 18.0% of modified polyurethane acrylate, 6% of methacrylic acid, 36% of SBS resin, N , N-dimethyl-p-toluidine 1.0% and hydroquinone 0.1%;

[0038] The B component includes by weight percentage: 25% of E-51 epoxy resin, 12% of polyester polyol, 20% of benzoate, 37% of benzoyl peroxide and 6% of silicon micropowder.

[0039] The preparation method of the above-mentioned good acrylate structural adhesive of impact resistance, the steps are as follows:

[0040] (1) Weigh 28.9% methyl methacrylate, 10% hydroxyethyl methacrylate, 18.0% modified urethane acrylate and 6% methacrylic acid, and add them into the double planetary power mixer in turn, at 500~1000r / min Stir at a high speed for 30 minut...

Embodiment 3

[0044] An acrylic structural adhesive with good impact resistance, its components are composed of A component and B component in a volume ratio of 10:1;

[0045]The A component described therein includes by weight percentage: 28.9% of methyl methacrylate, 10% of hydroxypropyl methacrylate, 17.0% of modified polyurethane acrylate, 7% of methacrylic acid, 26% of ABS resin, SBS Resin 10%, triphenylphosphine 1.0% and p-naphthoquinone 0.1%;

[0046] The B component includes by weight percentage: 26% of EP828 epoxy resin, 13% of polyether polyol, 19% of phthalate, 36% of lauroyl peroxide and 6% of calcium carbonate.

[0047] The preparation method of the above-mentioned good acrylate structural adhesive of impact resistance, the steps are as follows:

[0048] (1) Weigh 28.9% methyl methacrylate, 10% hydroxypropyl methacrylate, 17.0% modified urethane acrylate and 7% methacrylic acid, and add them to the double planetary power mixer in turn, at 500~1000r / min Stir for 30 minutes at ...

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Abstract

The invention belongs to the technical field of adhesives, and in particular relates to an acrylic structural adhesive with good impact resistance, which contains rigid functional groups and methacrylate functional groups provided by hydrogenated bisphenol A, which can increase the cured pull-out strength and impact resistance ; Adding toughening resin can greatly improve the impact resistance; the high addition ratio of curing agent in component B can ensure the rapid reaction and curing of the whole system; room temperature curing 3-5min, 70 ℃ hot pressing only takes 60s; impact resistance Good performance, can pass the disc knife test, and can maintain a strong adhesive force when cut a little; the positive pull-out strength is high, and the pull-out force at the copper nail is generally required to be greater than 20Kg or the copper nail falls off after the positive pull-out force test ; High temperature and high humidity performance is good, under the conditions of 60 ℃ and 90% humidity, there is no obvious decrease in strength for 7 days.

Description

technical field [0001] The invention belongs to the technical field of adhesives, in particular to an acrylic structural adhesive with good impact resistance. Background technique [0002] In the manufacture of electronic equipment such as notebook computers and mobile phones, most of the housing parts require adhesive bonding and assembly, such as the structural bonding between the aluminum-magnesium alloy plate and plastic parts of the notebook computer A cover, and the aluminum-magnesium alloy plate and plastic parts of the C cover. The structural bonding of plastic parts, the structural bonding of plastic parts and plastic parts, etc.; the materials of plastic parts include: carbon fiber, glass fiber reinforced plastic, ABS+PC, PC+PC, etc. [0003] Usually, the traditional 1:1 (volume ratio) acrylic glue is used for the bonding of the shell, but it has low initial bonding strength, slow curing speed, poor impact resistance, low positive pull-out strength, and poor high t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J155/02C09J153/02C09J163/00C09J175/14C09J11/04
CPCC08L2201/08C08L2205/03C08L2205/035C09J11/04C09J153/02C09J155/02C09J163/00C08L75/14C08L71/00C08K13/02C08K2003/265C08L67/00C08K3/36C08L53/02C08L63/00C08L55/02C08L51/04
Inventor 姜毅刘铁钢林志秀
Owner 信泰永合(烟台)新材料有限公司