Expanding damping adhesive with good damp heat resistance ageing performance
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A technology of expansion and vibration damping rubber and aging performance, which is applied in the field of expansion and vibration damping rubber, which can solve the problems of difficult replacement and high cost, and achieve the effects of long service life, good strength retention rate, and excellent moisture and heat aging resistance
Active Publication Date: 2012-06-27
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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[0003] Generally speaking, the intumescent damping rubber is coated between two layers of steel plates on the car body, a
Method used
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Embodiment 1
[0059] Example 1: 20 parts of Polyoil 130, 4 parts of butadiene rubber (solid), 10 parts of phenyl sulfonate, 7 parts of tackifier, 4 parts of sulfur, 1.5 parts of accelerator DM, 0.5 part of antioxidant 2246, 1.4 parts of calcium oxide, 1.4 parts of zinc oxide, 2 parts of azodicarbonamide, 0.2 parts of carbon black, 22 parts of surface-treated calcium carbonate, and 26 parts of calcium carbonate.
Embodiment 2
[0060] Example 2: 20 parts of Polyoil 110, 4 parts of butadiene rubber (solid), 10 parts of phenyl sulfonate, 7 parts of tackifier, 4 parts of sulfur, 1.5 parts of accelerator DM, 0.5 part of antioxidant 2246, 1.4 parts of calcium oxide, 1.4 parts of zinc oxide, 2 parts of 4,4'-oxobisbenzenesulfonyl hydrazide (OB sulfur H), 0.2 parts of carbon black, 22 parts of surface-treated calcium carbonate, and 26 parts of calcium carbonate.
Embodiment 3
[0061] Example 3: 20 parts of Polyoil 110, 4 parts of styrene-butadiene rubber (solid), 10 parts of phenyl sulfonate, 7 parts of tackifier, 4 parts of sulfur, 1.5 parts of accelerator DM, 0.5 part of antioxidant 2246, 1.4 parts of calcium oxide, 1.4 parts of zinc oxide, 2 parts of azodicarbonamide, 0.2 parts of carbon black, 22 parts of surface-treated calcium carbonate, and 26 parts of calcium carbonate.
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Abstract
The invention relates to an expanding damping adhesive with good damp heat resistance ageing performance, which belongs to the technical field of the expanding damping adhesive and mainly solves the problems that the damp heat resistance aging performance of the existing expanding damping adhesive is not good enough so as to affect service life of the expanding ageing performance. The expanding damping adhesive is mainly characterized by comprising the following components, by weight, 10-40 parts of liquid polybutadiene, 0-10 parts of solid rubber, 0-20 parts of softener, 0-10 parts of tackifier, 0-10 parts of sulphur, 0-10 parts of accelerating agent, 0.1-3 parts of antioxygen, 0.1-10 parts of active agent, 0-3 parts of foaming agent and 10-50 parts of filler. The expanding damping adhesive has good strength keeping rate after damp heat ageing and long service life, is widely used for adhesion and filling between an outer plate and a strengthening beam of an auto-body panel of a welding line, and has buffering and damping effects.
Description
technical field [0001] The invention belongs to the technical field of expansion and vibration damping glue, and in particular relates to an expansion and vibration damping glue with excellent damp heat aging resistance. Background technique [0002] In the automobile body manufacturing process, the combination of the outer panel and the reinforcement beam of the body cover is usually assembled by welding, such as the roof reinforcement beam of the body cab, the engine cover reinforcement beam and the trunk lid reinforcement beam, etc. and the outer panel Combination, all adopt welding method. Because there is a certain gap between the cover plate and the reinforcing beam, noise may be generated due to vibration during driving, and the welding spots on the cover plate also seriously damage the smoothness of the appearance. In order to overcome the above shortcomings, the expansion type vibration-damping adhesive can be coated on the stamped sheet and the reinforced beam st...
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