Unlock instant, AI-driven research and patent intelligence for your innovation.

Water-based hemming adhesive and preparation method thereof

A water-based technology of hemming glue, which is applied in the field of hemming glue, can solve the problems of lack of bite force and low shear strength of hemming glue, so as to improve the retention rate of shear strength, improve the mechanical bite force, and enhance the shear strength Effect

Inactive Publication Date: 2020-03-27
GUANGDONG ORIENT RESIN
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low shear strength and lack of bite force of the current hemming glue, the purpose of the present invention is to provide a water-based hemming glue and its preparation method to solve the problems raised in the above-mentioned background technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-based hemming adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A water-based hemming glue, comprising the following raw materials in parts by weight: 20 parts of neoprene rubber, 15 parts of polyvinyl chloride, 18 parts of epoxy resin, 10 parts of carbon fiber, 3 parts of toughening agent, 1 part of film forming agent, anti 1 part of oxidizing agent, 1 part of defoamer, 1 part of initiator, 4 parts of ammonia water, 40 parts of pure water.

[0027] Further, the epoxy resin is a mixture of bisphenol A epoxy resin and bisphenol F epoxy resin in a mass ratio of 1:1.

[0028] Further, the carbon fiber has a single filament diameter of 5 microns.

[0029] Further, the toughening agent is polyvinyl chloride and vinyl chloride-vinyl acetate copolymer.

[0030] Further, the film-forming agent is a mixture of ethylene glycol butyl ether and dodecyl alcohol ester in a mass ratio of 2:3.

[0031] Further, the antioxidant is a mixture of dibutyl hydroxytoluene and tert-butyl hydroquinone in a mass ratio of 1:1.

[0032] Further, the defoame...

Embodiment 2

[0040] A water-based hemming glue, comprising the following raw materials in parts by weight: 25 parts of neoprene rubber, 20 parts of polyvinyl chloride, 20 parts of epoxy resin, 12 parts of carbon fiber, 3.5 parts of toughening agent, 2 parts of film-forming agent, anti- 1.2 parts of oxidizing agent, 1.5 parts of defoamer, 1.2 parts of initiator, 5 parts of ammonia water, 45 parts of pure water.

[0041] Further, the epoxy resin is a polyphenol glycidyl ether epoxy resin.

[0042] Further, the carbon fiber has a single filament diameter of 6 microns.

[0043] Further, the toughening agent is polyvinyl chloride and vinyl chloride-vinyl acetate copolymer.

[0044] Further, the film-forming agent is a mixture of ethylene glycol butyl ether and dodecyl alcohol ester in a mass ratio of 2:3.

[0045] Further, the antioxidant is a mixture of dibutyl hydroxytoluene and tert-butyl hydroquinone in a mass ratio of 1:1.

[0046] Further, the defoamer is ethylene glycol.

[0047] Fur...

Embodiment 3

[0054] A water-based hemming glue, comprising the following raw materials according to parts by weight: 28 parts of neoprene rubber, 23 parts of polyvinyl chloride, 22 parts of epoxy resin, 13 parts of carbon fiber, 4 parts of toughening agent, 2.5 parts of film forming agent, anti- 1.5 parts of oxidizing agent, 2 parts of defoamer, 1.5 parts of initiator, 6 parts of ammonia water, 50 parts of pure water.

[0055] Further, the epoxy resin is bisphenol A epoxy resin, bisphenol F epoxy resin, polyphenol glycidyl ether epoxy resin, aliphatic glycidyl ether epoxy resin and glycidyl ester epoxy resin One or more of epoxy resins.

[0056] Further, the carbon fiber has a single filament diameter of 8 microns.

[0057] Further, the toughening agent is polyvinyl chloride and vinyl chloride-vinyl acetate copolymer.

[0058] Further, the film-forming agent is a mixture of ethylene glycol butyl ether and dodecyl alcohol ester in a mass ratio of 2:3.

[0059] Further, the antioxidant is a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a water-based hemming adhesive and belongs to the technical field of hemming adhesives, and the problems of low shearing strength and lack of occlusal force of an existing hemming adhesive are solved. The technical points are that the water-based hemming adhesive comprises the following raw materials including chloroprene rubber, polyvinyl chloride, epoxy resin, carbon fibers, a toughening agent, a film-forming agent, an antioxidant, a defoaming agent, an initiator, ammonia water and pure water. The invention further discloses a preparation method based on the water-based hemming adhesive. The chloroprene rubber, the polyvinyl chloride, the epoxy resin and the antioxidant are mixed to obtain a pre-emulsion, the pre-emulsion is mixed with the carbon fibers, in the preparation process, under the action of the chloroprene rubber, the polyvinyl chloride and the epoxy resin, the carbon fibers effectively improve the mechanical occlusal force among all the components,in the use process, when the carbon fibers bear external force, the external force can be rapidly dispersed to all positions in a system, so the shearing strength is effectively enhanced, and the shearing strength retention rate of the hemming adhesive is increased.

Description

technical field [0001] The invention relates to the technical field of hemming glue, in particular to a water-based hemming glue and a preparation method thereof. Background technique [0002] With the development of automobile manufacturing technology and the continuous improvement of performance requirements, the application of adhesives has become more and more extensive, and the varieties have become increasingly complete. Automobile hemming adhesives are one of the important types of adhesives used in automobile welding processes. The adhesive is mainly used for bonding the folded parts of car doors, engine covers, trunk lids, etc. It not only replaces spot welding, eliminates pits, and ensures the smooth and beautiful appearance of the car body, but also strengthens the structure, seals the car body, and Prevent premature corrosion of bonding parts due to inability to paint. Cars are often used outdoors, and damp heat aging is an important factor affecting the service...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J111/00C09J127/06C09J163/00C09J11/04C09J11/08
CPCC08L2205/025C08L2205/035C09J11/04C09J11/08C09J111/00C08L27/06C08L63/00C08K13/04C08K7/06
Inventor 燕刚强
Owner GUANGDONG ORIENT RESIN