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High-impact-resistance acrylate structural adhesive

An acrylate and impact resistance technology, used in the field of acrylate structural adhesives, can solve the problems of poor high temperature and high humidity resistance, low forward pull strength, low initial tack strength, etc., and achieves good high temperature and high humidity resistance. The effect of high forward pull strength and fast curing speed

Active Publication Date: 2016-06-29
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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  • High-impact-resistance acrylate structural adhesive

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 particularly relates to a high-impact-resistance acrylate structural adhesive. The high-impact-resistance acrylate structural adhesive contains rigid functional groups provided by hydrogenated bisphenol A and methacrylate functional groups which can enhance the curing pull strength and impact resistance. The toughening resin is added to greatly enhance the impact resistance. The high addition percent of the curing agent in the component B can ensure the whole system to quickly perform reaction and curing. After room curing is performed for 3-5 minutes, 70-DEG C hot pressing only takes 60 seconds. The high-impact-resistance acrylate structural adhesive has high impact resistance, can pass the disk knife test, and can still keep high bonding power after being cut a little. The structural adhesive has high forward pull strength, and the pull force test proves that the pull force at the copper nail is generally required to be greater than 20kg or the copper nail can shed. The structural adhesive has high temperature resistance and high humidity resistance, and the strength does not obviously decrease when the structural adhesive is at 60 DEG C under the 90% humidity condition 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 shell parts need to be bonded and assembled with adhesives, such as the structural bonding of the aluminum-magnesium alloy plate and plastic parts of the notebook computer Acover, and the structure of the aluminum-magnesium alloy plate and plastic parts of Ccover Bonding, 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 temperature and high humi...

Claims

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Application Information

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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
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