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A kind of self-adhesive sound insulation expansion glue and preparation method thereof
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A self-adhesive, formulated technology, applied in adhesives, polymer adhesive additives, non-polymer adhesive additives, etc.
Active Publication Date: 2020-10-23
JIANGSU TONGMENG AUTO PARTS IND CO LTD
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[0005] The purpose of the present invention is to provide a self-adhesive sound-insulating expansion adhesive with simple process and low risk of product failure, so as to solve the bonding problem of sound-insulation expansion adhesive and automobile parts
Method used
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Embodiment 1
[0032] Embodiment 1. The formula of the self-adhesive sound-insulating expansion glue of the present embodiment is:
[0043] Among them, the processing oil is naphthenic oil, the tackifying resin is C5 petroleum resin, the anti-aging agent is N-phenyl-β-naphthylamine, and the expansion microbeads are MSH-550.
Embodiment 2
[0044] Embodiment two, the formula of the self-adhesive sound-insulating expansion glue of the present embodiment is:
[0055] Among them, the processing oil is naphthenic oil, the tackifying resin is terpene resin, the anti-aging agent is N-phenyl-β-naphthylamine, and the expanded microbeads are MSH-550.
Embodiment 3
[0056] Embodiment three, the formula of the self-adhesive sound-insulating expansion glue of the present embodiment is:
[0067] Among them, the processing oil is paraffin base oil, the tackifying resin is 203 resin or cobalt caprate resin, the anti-aging agent is N-phenyl-β-naphthylamine, and the expanded microbeads are MSH-550.
[0068] The preparation method of self-adhesive sound-insulating expansion glue of the present invention is as follows:
[0069] 1. Knead butyl rubber and 100-200 parts of filler calcium carbonate, disperse in the kneader for about 10 minutes, add polyisobutylene, anti-aging ag...
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Abstract
The invention provides a self-adhesion sound-insulating expansion adhesive. The adhesive comprises the following components in parts by weight: 100 parts of butyl rubber, 300-500 parts of filler calciumcarbonate, 30-50 parts of processing oil, 70-100 parts of polyisobutylene, 10-30 parts of tackifying resin, 2-5 parts of an anti-aging agent, 10-20 parts of carbon black, 10-15 parts of expanded microbeads, and 2-4 parts of a cobalt salt. A preparation method of the adhesive comprises the following steps: performing kneading on the butyl rubber and a part of filler calciumcarbonate in a kneading machine for 10 min, adding the polyisobutylene, the anti-aging agent, the carbon black, the processing oil and the remaining filler calciumcarbonate, and performing kneading for 30 min; adding thetackifying resin and the cobalt salt, and continuing kneading for 30 min; adding the expanded microbeads, and performing kneading for 1 h; and performing extrusion through a screw extruder, performing calendaring, and performing lamination to obtain the self-adhesion sound-insulating expansion adhesive. The adhesive provided by the invention has good initial stickiness when being in contact withother parts; and the adhesive does not have crosslinking, and can continuously maintain excellent binding performance under high-temperature conditions.
Description
technical field [0001] The invention belongs to the technical field of expansion glue, and in particular relates to a self-adhesive sound-insulating expansion glue and a preparation method thereof. Background technique [0002] Most of the traditional sound-proofing expansion rubber for automobiles uses EPDM (ethylene propylene dienemonomer) as the main body, adding various additives, fillers, and cross-linking agents, and is formed by banburying and molding. The knot layer is bonded to the automotive part. Prior art has following defect and deficiency: [0003] 1. The current sound-insulating expansion glue and auto parts mainly rely on adhesives. First, the cost of adhesives is relatively high. At the same time, several production processes are added in the production process, which increases the processing cost and operation difficulty; secondly, the use of In the process, the failure of the combination of the adhesive and the expansion glue may occur, which reduces th...
Claims
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