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Self-adhesive butyl damping fin and preparation method thereof

A self-adhesive, damping sheet technology, applied in the field of damping sheets, can solve the problems of difficult industrialization of the preparation process, complex product structure, high manufacturing cost, etc., and achieve the effects of easy industrial production, low production cost, and improved fluidity

Inactive Publication Date: 2018-09-14
HANGZHOU ZHIJIANG SILICONE CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there have been some researches on butyl-based rubber-based polymer viscoelastic materials instead of asphalt to prepare vehicle body sound insulation and noise reduction damping sheets: for example, patent No. Its preparation method "the damping product prepared does not contain asphalt and has good damping performance, but its self-adhesiveness is slightly poor, and the preparation process is not easy to industrialize; Patent No. CN104149711 A patent name "a kind of automobile damping plate" Although the structural strength is high, the heat insulation is reduced The vibration effect is good, but its product structure is complicated and the manufacturing cost is high

Method used

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  • Self-adhesive butyl damping fin and preparation method thereof
  • Self-adhesive butyl damping fin and preparation method thereof
  • Self-adhesive butyl damping fin and preparation method thereof

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preparation example Construction

[0037] The raw material for the preparation of the damping sheet provided by the present invention further includes 1wt%-20wt% of tackifying resin, preferably 5wt%-15wt%, more preferably 8wt%-12wt%. The tackifying resin is selected from C5 series petroleum resin, C9 series petroleum resin, polyurethane resin, polyester resin, rosin resin, phenolic resin, terpene resin, terpene phenolic resin, coumarone resin, hydrogenated rosin phenol resin, One or a mixture of cyclopentadiene-based petroleum resins, styrene-based resins, and alkylphenol-formaldehyde resins.

[0038] The raw material for the preparation of the damping sheet provided by the present invention further includes 0.1wt%-10wt% carbon black, preferably 0.5wt%-8wt%, more preferably 2wt%-6wt%. The carbon black is selected from one or more of lamp black, gas black, furnace black and channel black.

[0039] The raw material for preparing the damping sheet provided by the present invention further includes 50wt%-80wt% fil...

Embodiment 1

[0061] Adjust the roller distance of the open mill to about 1 mm, put in 2 parts of chlorinated butyl rubber 1068 and pass it for about 2 minutes; put the refined chlorinated butyl rubber 1068 into the internal mixer, banbury for 2-3 minutes, add 1 part of N220 carbon black, 4 parts of terpene resin T90, 20 parts of 400 mesh talcum powder and 7 parts of polyvest110 polybutadiene banburying for 10min-15min; after the banburying temperature reaches 150°C, add 35 parts of 400 mesh talcum powder, 12 parts of polyvest110 polybutadiene, continue banburying for 10 minutes; add the remaining 15 parts of 400-mesh talcum powder and 10 parts of polyvest110 polybutadiene, continue banburying for 10 minutes, and then discharge. It can be extruded at 65°C, laminated with aluminum foil and single-sided silicone oil paper, and cut into shape.

Embodiment 2

[0063] Adjust the roller distance of the open mill to about 1mm, put in 12 parts of butyl rubber 268 and pass it for about 2 minutes; put the butyl rubber that has been refined into the internal mixer, banbury for 2-3 minutes, add 9 parts of N110 carbon black, 10 parts of C5 petroleum resin, 20 parts of 800-mesh light calcium and 5 parts of PB1300 polyisobutylene are mixed for 10min-15min; after the banburying temperature reaches 130°C, add 35 parts of 800-mesh light calcium and 8 parts of PB1300 polyisobutylene, and continue to mix. Refining for 10 minutes; add the remaining 5 parts of 800-mesh light calcium and 2 parts of PB1300 polyisobutylene and continue banburying for 10 minutes before discharging. It can be extruded at 75°C, laminated with glass fiber cloth and double-sided silicone oil paper, and cut into shape.

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Abstract

The invention provides a self-adhesive butyl damping fin, comprising a covering layer, an adhesive layer and an anti-sticking layer which are sequentially compounded, wherein the adhesive layer is prepared from the following raw materials by mass percent: 2-30wt% of butyl rubber, 1-20wt% of tackifying resin, 0.1-10wt% of carbon black, 50-80wt% of filler and 1-30wt% of tackifying liquid; the butylrubber refers to a copolymer containing most of isobutylene and a small amount of isoprene, is one or more selected from butyl rubber, chlorobutyl rubber, bromobutyl rubber, butyl recycled rubber, chlorinated butyl recycled rubber and brominated butyl recycled rubber; the tackifying liquid is one or more selected from liquid terpene resin, liquid rosin resin, polyisobutylene, polybutadiene, liquidC9 resin, liquid coumarone resin and liquid acrylic resin. The damping fin provided by the invention is higher in self-adhesion, light in weight, simple in process, low in production cost, suitable for industrial production, energy-saving and high in efficiency, and has good vibration absorption and noise reduction effects.

Description

technical field [0001] The invention belongs to the technical field of damping sheets, and in particular relates to a self-adhesive butyl damping sheet and a preparation method thereof. Background technique [0002] Nowadays, many mechanical equipment will generate certain vibration and noise during operation, and with the improvement of living standards, people pay more and more attention to the problem of noise treatment. my country has entered the era of automobile popularization very early. As a common means of transportation for people's daily travel, the control of noise and vibration in the car has attracted more and more attention from consumers. At present, the products for automobile shock and noise reduction are mainly hot-melt asphalt damping sheets, which are mainly made of asphalt and asbestos, and have defects such as poor toughness and fragility. Will endanger the health of passengers. Therefore, with the continuous expansion of the automobile market and th...

Claims

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Application Information

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IPC IPC(8): C09J7/30C09J7/28C09J7/21C09J109/00C09J123/28C09J145/00C09J11/04C09J123/22C09J157/02C09J123/20C09J11/08
CPCC08K2003/265C08L2205/03C09J11/04C09J11/08C09J109/00C09J123/22C09J2400/163C09J2409/00C09J2423/00C09J7/21C09J7/28C09J7/30C08L45/00C08L23/283C08K3/04C08K3/34C08L23/22C08L57/02C08K3/26C08L93/04Y02P20/10
Inventor 徐贝杨乐曹建俊陶小乐何永富
Owner HANGZHOU ZHIJIANG SILICONE CHEM
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