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Automobile hemming adhesive and preparation method thereof

A hemming glue, automotive technology, applied in the direction of adhesives, epoxy glue, adhesive types, etc., can solve the problems of short storage period, construction process influence, high viscosity, etc., and achieve good manufacturability and excellent dynamic mechanical properties , Good thixotropic performance

Active Publication Date: 2011-07-06
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic folding adhesives generally have problems of high viscosity, easy to flow when heated, and short storage period, which affects the construction process

Method used

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  • Automobile hemming adhesive and preparation method thereof
  • Automobile hemming adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Proportion

[0045] Nano rubber modified epoxy resin (MX-125) 13%Wt

[0046] Epoxy Resin (E-51) 17%Wt

[0047] Qishi Toughening Agent (QS-BE) 5%Wt

[0048] 664 Reactive Diluent 5%Wt

[0049] PVC paste resin 10%Wt

[0050] Phenyl Alkyl Sulfonate 10%Wt

[0051] Calcium zinc composite stabilizer 1%Wt

[0052] Dicyandiamide 3%Wt

[0053] Clomerone 0.5%Wt

[0054] Titanate coupling agent (NDZ-101) 1%Wt

[0055] Microsilica 12.5%Wt

[0056] Nano calcium carbonate 20%Wt

[0057] Carbon Black 2%Wt

[0058] preparation:

[0059] (1) Stir the PVC paste resin fat and phenyl alkyl sulfonate at 5°C~35°C for 30mim~90min, until the solid material is completely dissolved and uniform, for subsequent use;

[0060] (2) Combine the above mixed liquid composition with nano-rubber modified epoxy resin (MX-125), 618 epoxy resin, Qishi toughening agent (QS-BE), 664 reactive diluent, calcium and zinc for compound stability Add in the dynamic mixer, dicyandiamide, clomeron, titanate...

Embodiment 2

[0092] Proportion

[0093] Carboxyl Liquid Nitrile Rubber Modified Epoxy Resin 12%Wt

[0094]Epoxy Resin (E-44) 18%Wt

[0095] Kishi Toughening Agent (QS-210B) 5%Wt

[0096] 5748 Reactive Diluent 5%Wt

[0097] PVC paste resin 10%Wt

[0098] Phenyl Alkyl Sulfonate 10%Wt

[0099] Calcium zinc composite stabilizer 1%Wt

[0100] Dicyandiamide 2%Wt

[0101] Sebacate dihydrazide 2%Wt

[0102] Titanate coupling agent (NDZ-102) 2%Wt

[0103] Microsilica 21%Wt

[0104] Fumed silica 10%Wt

[0105] Carbon Black 2%Wt

[0106] The preparation technology and the test method are the same as those in Example 1, and the test results are shown in Table 1.

Embodiment 3

[0108] Proportion

[0109] Nano rubber modified epoxy resin (MX-257) 13%Wt

[0110] Epoxy Resin (E-51) 20%Wt

[0111] Liquid Nitrile Rubber 2%Wt

[0112] 5749 Reactive Diluent 5%Wt

[0113] PVC paste resin 10%Wt

[0114] Phenyl Alkyl Sulfonate 10%Wt

[0115] Calcium zinc composite stabilizer 1%Wt

[0116] Dicyandiamide 2%Wt

[0117] Sebacate dihydrazide 2%Wt

[0118] Titanate coupling agent (NDZ-101) 2%Wt

[0119] Nano Calcium Carbonate 25%Wt

[0120] Hollow glass beads 6%Wt

[0121] Carbon Black 2%Wt

[0122] The preparation technology and the test method are the same as those in Example 1, and the test results are shown in Table 1.

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Abstract

The invention relates to an automobile hemming adhesive and a preparation method thereof, belonging to the technical field of single-component epoxy adhesives. The automobile hemming adhesive is mainly used for bonding an automobile hemming part. The automobile hemming adhesive is mainly characterized by comprising (A) epoxy resin, (B) modified epoxy resin, (C) toughener, (D) epoxy diluter, (E) thermoplastic resin, (F) plasticizer, (G) thermal stabilizer, (H) latent curing agent, (I) coupling agent, (J) filler and (K) pigment. The preparation method comprises the following steps: (1) evenly stirring (E) and (F) at 5-35 DEG C; (2) adding the mixed liquid composition in the step (1), and (A), (B), (C), (D), (G), (H), (I), (J) and (K) into a movable mixer, and evenly stirring at 5-35 DEG C; (3) passing the mixture in the step (2) through a three-roller machine once or twice; and (4) vacuumizing the movable mixer, stirring, defoaming, and discharging for later use. The invention mainly solves the problems of low environmental-protection index, poor technical properties of sizing, short storage period, low modulus, poor moisture and heat resistance and the like in the existing hemming adhesive.

Description

technical field [0001] The invention belongs to the technical field of single-component epoxy adhesives, and in particular relates to an automobile hemming adhesive and a preparation method thereof, and is a high-temperature curing structural adhesive applied in the automobile welding process. The hemming adhesive is environmentally friendly and has the characteristics of good oil surface adhesion and construction process performance, stable storage at room temperature, high modulus, and excellent heat and humidity resistance. Background technique [0002] Hemming adhesive is mainly used for the bonding of car doors, hoods, trunk lids and other folded parts. It can not only replace spot welding, eliminate pits, and ensure the smoothness and beauty of the body, but also enhance the structure and sealing body, and prevent premature rusting of the bonding parts due to inability to apply the paint. Since the 1970s, foreign countries have adopted the method of bonding instead of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J163/02C09J127/06C09J11/06
Inventor 韩胜利李伟红杨敏
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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