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A kind of expansion and damping rubber with low water absorption rate

A technology of expansion damping rubber and low water absorption rate, which is applied in the field of expansion damping rubber, which can solve problems such as aging of vibration damping rubber, threat to safety, and corrosion of steel plates, so as to prevent rainwater corrosion, reduce failure modes, and ensure driving safety.

Active Publication Date: 2016-09-14
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, the expansion-type vibration-damping rubber has a foaming structure, which is easy to absorb water. If the water absorption rate of the expansion-type vibration-damping rubber is too high, the vibration-damping rubber will absorb a large amount of water due to weather and other reasons during the actual use of the vehicle, resulting in vibration reduction. The aging of the glue or the corrosion of the steel plate by moisture will affect the beautification and even threaten the safety

Method used

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  • A kind of expansion and damping rubber with low water absorption rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1 (comparative example): Polyoil 110 20 parts, butadiene rubber (solid) 4 parts, alkyl sulfonic acid phenyl ester 10 parts, maleic anhydride modified polybutadiene 7 parts, sulfur 4 parts, accelerator DM 1.5 parts, antioxidant 2246 0.5 parts, calcium oxide 1.4 parts, zinc oxide 1.4 parts, 4,4'-oxobisbenzenesulfonyl hydrazide (OBSH) 2 parts, carbon black 0.2 parts, surface treatment calcium carbonate 22 parts, 26 parts of calcium carbonate.

Embodiment 2

[0072] Example 2: 20 parts of Polyoil 110, 4 parts of styrene-butadiene rubber (solid), 10 parts of phenyl alkyl sulfonate, 7 parts of maleic anhydride modified polybutadiene, 4 parts of sulfur, 1.5 parts of accelerator DM, anti Oxygen agent 2246 0.5 parts, calcium oxide 1.4 parts, zinc oxide 1.4 parts, 4,4'-oxobisbenzenesulfonyl hydrazide (OBSH) 2 parts, carbon black 0.2 parts, polypropylene fine powder 6 parts, surface treatment calcium carbonate 22 Servings, 20 servings of calcium carbonate.

Embodiment 3

[0073] Example 3: 20 parts of Polyoil 110, 4 parts of butadiene rubber (solid), 10 parts of phenyl alkyl sulfonate, 7 parts of maleic anhydride modified polybutadiene, 4 parts of sulfur, 1.5 parts of accelerator DM, anti Oxygen agent 2246 0.5 parts, calcium oxide 1.4 parts, zinc oxide 1.4 parts, 4,4'-oxobisbenzenesulfonyl hydrazide (OBSH) 2 parts, carbon black 0.2 parts, polyethylene powder 6 parts, surface treatment calcium carbonate 18 Servings, 20 servings of calcium carbonate.

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Abstract

The invention discloses low-water-absorption-rate expansion vibration-damping glue, belongs to the technical field of expansion vibration-damping glue, and mainly solves the problem of high water absorption rate of the expansion vibration-damping glue in the prior art. The low-water-absorption-rate expansion vibration-damping glue is mainly characterized by including 10-40 parts of liquid polybutadiene; 0-10 parts of solid rubber; 0-20 parts of a softener; 0-10 parts of a tackifier; 0-10 parts of sulfur; 0-10 parts of a promoter; 0.1-3 parts of an antioxidant; 0.1-10 parts of an active agent; 0-3 parts of a foaming agent; 0-15 parts of parts of a film forming agent and 10-50 parts of a filler. The low-water-absorption-rate expansion vibration-damping glue has the advantages of significant reduction of water absorption rate of cured expansion vibration-damping glue with other properties remained basically unchanged, and can be widely used in bonding and filling between stiffening beams and outside plates of welding assembly line auto-body cover panels, and can play the role of buffering and vibration-damping.

Description

Technical field [0001] The invention belongs to the technical field of expansion damping glue, and specifically relates to an expansion damping glue with low water absorption. Background technique [0002] In the automobile body manufacturing process, the outer panel of the body cover and the reinforcement beam are usually assembled by welding, such as the body cab roof reinforcement beam, the engine cover reinforcement beam, and the trunk cover reinforcement beam. Combination, all adopt welding method. Because there is a certain gap between the cover plate and the reinforced beam, noise may be generated due to vibration during driving, and the solder joints on the cover plate also seriously damage the flatness of the appearance. In order to overcome the above shortcomings, the expansion-type damping adhesive can be coated on the stamping sheet and reinforced beam structure before welding. After heating and curing by the paint drying equipment, the adhesive layer has a higher bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J147/00C09J109/06C09J109/00C09J107/00C09J123/16C09J109/02C09J123/22C09J111/00C09J133/00C09J11/00
Inventor 袁挺韩胜利马德军章锋李明桓冯燕明王文文
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD