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A kind of hemming structural adhesive with light weight and good oil surface fixation and determination method

A fixed and lightweight technology, applied in the direction of applying stable tension/pressure to test the strength of materials, adhesives, measuring devices, etc., can solve problems such as poor fixation, disengagement, flow and deformation, and achieve easy flow and Low deformation, low density and high bonding integrity

Active Publication Date: 2020-08-21
十堰福波新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary hemming glue will flow and deform when the thick glue strip is squeezed on the oil surface steel plate, the fixation is not good, and the phenomenon of disengagement will occur after baking on the coating line

Method used

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  • A kind of hemming structural adhesive with light weight and good oil surface fixation and determination method
  • A kind of hemming structural adhesive with light weight and good oil surface fixation and determination method
  • A kind of hemming structural adhesive with light weight and good oil surface fixation and determination method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] In this embodiment, a hemming structural adhesive with light weight and good oil surface fixity, in terms of weight percentage, includes the following components:

[0080] Bisphenol F type epoxy resin: 25%

[0081] Epoxy modified silicone resin SH-023: 35%

[0082] Dicyandiamide: 5%

[0083] Anhydride: 0.8%

[0084] Fumed silica: 3.2%

[0085] Hollow glass microspheres: 1.5%

[0086] Nano active calcium carbonate: 25%

[0087] Active silica powder: 4%

[0088] Pigment carbon black: 0.5%

Embodiment 2

[0090] In this embodiment, a hemming structural adhesive with light weight and good oil surface fixity, in terms of weight percentage, includes the following components:

[0091] Bisphenol F type epoxy resin: 28%

[0092] Epoxy modified silicone resin SH-023: 30%

[0093] Dicyandiamide: 3%

[0094] Anhydride: 0.9%

[0095] Fumed silica: 1.8%

[0096] Hollow glass microspheres: 1%

[0097] Nano active calcium carbonate: 30%

[0098] Active silica powder: 5%

[0099] Pigment carbon black: 0.3%

Embodiment 3

[0101] In this embodiment, a hemming structural adhesive with light weight and good oil surface fixity, in terms of weight percentage, includes the following components:

[0102] Bisphenol F type epoxy resin: 30%

[0103] Epoxy modified silicone resin SH-023: 29%

[0104] Dicyandiamide: 3.1%

[0105] Anhydride: 1%

[0106] Fumed silica: 1.5%

[0107] Hollow glass microspheres: 1.1%

[0108] Nano active calcium carbonate: 30%

[0109] Active silica powder: 4%

[0110] Pigment carbon black: 0.3%

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Abstract

The invention discloses a hemming structural adhesive with lightweight and good grease surface fixity as well as a determination method, and relates to the technical field of chemical materials. The hemming structural adhesive comprises the following components in percentages by weight: 25-35% of bisphenol F type epoxy resin; 25-35% of epoxy modified organic silicone resin; 3-5% of a curing agent; 0.8-1.2% of a promoter; 1.4-4% of gas phase white carbon black; 1-1.5% of hollow glass beads; 29-35% of a filling material; and 0.3-0.5% of a pigment. The adhesive has environmental protection and low density, lightweighting of the product is better realized, and problems of easy deformation and flowing of high strength structural adhesive squeezing-coating crude adhesive tapes which are applied to the position with larger gaps between automobile body grease surface steel plates, and disjointing of adhesive tape bonding after lines are coated.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a hemming structural glue with light weight and good oil surface fixity and a measuring method. Background technique [0002] Hemming structural adhesive is mainly used in the hemming parts and other required parts such as the junction of automobile doors, hoods, top cover reinforcement plates and outer panels, cab bottom plates, etc. It has good adhesion to anti-rust oil steel plates, After curing, it forms high-strength structural bonding, and at the same time plays the roles of fixing, connecting, sealing, and anti-corrosion. [0003] Due to the needs of energy saving and environmental protection, automobile lightweight has become the development trend of the world's automobile industry. The continuous improvement of product lightweight and performance requirements is imminent. At present, the hemming structural glue is widely used in the hemming parts of automobi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/02C09J183/04C09J11/04G01N9/08G01N11/00G01N3/08G01N19/04G01N17/00G01N3/60
CPCC08K2201/011C08L2205/025C08L2205/03C09J11/04C09J163/00C09J183/04G01N3/08G01N3/60G01N9/08G01N11/00G01N17/00G01N19/04G01N2203/0003G01N2203/0017G01N2203/0224C08L63/00C08L83/04C08K13/04C08K7/28C08K3/36C08K2003/265
Inventor 余国松陈云霞付双丽刘次翰
Owner 十堰福波新材料有限公司