A preparation method of low-temperature fast-curing resistance flame-retardant structural adhesive

A fast-curing, structural adhesive technology, applied in the direction of adhesives, epoxy resin glue, non-polymer adhesive additives, etc., can solve the problems of lack of flame retardancy, long curing time, high curing temperature, etc., to meet the requirements of various processes Good adhesion, good bonding strength, and fast curing at low temperature

Active Publication Date: 2022-03-22
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most structural adhesives have problems such as high curing temperature, long curing time, large shrinkage, low impedance, and lack of flame retardancy, which cannot meet the various requirements brought about by the development of micro motor technology to high frequency and miniaturization high performance requirements

Method used

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  • A preparation method of low-temperature fast-curing resistance flame-retardant structural adhesive
  • A preparation method of low-temperature fast-curing resistance flame-retardant structural adhesive
  • A preparation method of low-temperature fast-curing resistance flame-retardant structural adhesive

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] a. According to the mass parts: Add epoxy resin EXA-830CRP 300g to the reactor, heated to 60 ° C, set the rotational speed 10 rpm, start stirring; the stirring conditions were added to the hexaglexyl ring triosphaconitrile HPCTP 690G parts , Heated to 120 ° C, the rotational speed 40 rpm was set under vacuum conditions, stirred for 1 hour; adding isophorone diamine IPDA 10g, continued for 3 hours in a nitrogen protection environment, resulting from self-synthetic flame retardant epoxy resin gel;

[0033] b. According to the number of mass parts: self-synthetic flame retardant epoxy resin gel 100g, tricyclic pentyl dimethoxy epoxy resin EP-4088S 250G, new low viscosity toughening agent LME11335 80g, intanin 6 ( Mercapto propionate) thiocure 360200 g, imidazole fed PN-23J 40g, ultrafine hydroxide 104 330 g. In sequential input, a rotational speed of 30 rpm was set under vacuum conditions, stirred for 4 hours, and the structural adhesive of the present invention was produced. ...

Embodiment 2

[0035] a. Press the mass part: Add epoxy resin EXA-830CrP 330g to the reactor, heated to 55 ° C, set the rotational speed 10 rpm, start stirring; the stirring conditions were added to the hexaglexyl cyclic triosphaconitrile HPCTP 660G parts , Heated to 115 ° C, set the rotational speed of 40 rpm under vacuum conditions, stirred for 0.5 hours; adding isophorone diamine IPDA 9G, continued to stir in nitrogen protection for 2 hours, resulting from synthetic flame retardant epoxy resin gel;

[0036] b. According to the number of mass parts: self-synthetic flame retardant epoxy resin gel 150g, tricyclic pentyl dimethoxy epoxy resin EP-4088L 300g, new low viscosity toughen lipong LME11335 60G, intanin 6 ( Mercapropathyl ester) thiocure 360250 g, imidazole fed PN-H 50g, ultrafine hydroxide 104 190 g. In sequential input, a rotational speed of 30 rpm was set under vacuum conditions, stirred for 4 hours, and the structural adhesive of the present invention was produced.

Embodiment 3

[0038] a. According to the mass parts: Add epoxy resin EXA-830CRP 320g to the reactor, heated to 55 ° C, set the rotational speed 10 rpm, start stirring; the stirring conditions are added to the hexagle-cyclo-trikanoonitrile HPCTP 680G parts Heating to 115 ° C, set the rotational speed 40 rpm under vacuum conditions, stirred for 1 hour; adding isophorone diamine IPDA 10g, continued to stir for 3 hours in a nitrogen protection environment, resulting from self-synthetic flame retardant epoxy resin gel;

[0039] b. According to the number of mass parts: self-synthetic flame retardant epoxy resin gel 200g, tricyclic pentyl dimethoxy epoxy resin EP-4088S 350g, new low viscosity toughening agent LME11335 30g, intraminolysis Mercapropathyl ester) Thiocure 360300 g, imidazole fed PN-40J 60g, ultrafine hydroxide 104 60g. In sequentially put the stirred tank, the rotational speed of 30 rpm was set under vacuum conditions, stirred for 3 hours to prepare the structural glue of the present inv...

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PUM

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Abstract

The invention relates to a low-temperature fast-curing resistance flame-retardant structural adhesive, which is composed of the following raw materials: 10-20 parts of self-synthesized flame-retardant epoxy resin gel, 25-25 parts of tricyclopentyl dimethoxy epoxy resin 35 parts, 3-8 parts of new low-viscosity toughening agent, 20-30 parts of inositol hexa(mercaptopropionate), 4-6 parts of imidazole adduct, 6-33 parts of superfine aluminum hydroxide. The structural adhesive prepared by the invention has the advantages of fast curing speed at low temperature, easy operation of one component, good impedance performance, good flame retardancy, low shrinkage, good bonding strength, etc., and is suitable for various micro-motor inductance coils and related difficult Structural bonding of sticky materials.

Description

Technical field [0001] The present invention relates to a low-temperature rapid curing impedance flame retardant structural adhesive, belonging to the field of adhesive. Background technique [0002] Global electronic products are developing lightweight, intelligent, etc., and micro-motor technology for key components such as advanced electronic products, audio-visual modules, axis drive control elements, automated drives, and other key components, are also rapidly developed. At the same time, micro motor technology also develops to high precision motors, high-speed synchronous motors, sheet-shaped windings, brushless motors, high performance servo motors, and new motors such as ultrasonic motor. The structural adhesive is structurally bonded to motor inductance coils and associated materials, well process operability, high bond strength, and effectively improve the functionality, practicality and reliability of motor products. [0003] Most of the structuas have problems with hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J11/04C08G59/14C08G59/66C08G59/68
CPCC09J163/00C08G59/1488C08G59/66C08G59/686C08L2201/02C08L2205/025C08K2003/2227C08L63/00C08K3/22
Inventor 闫善涛陈田安王建斌
Owner YANTAI DARBOND TECH
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