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High-performance damping film

A high-performance, damping adhesive technology, used in adhesives, epoxy adhesives, film/flake adhesives, etc., can solve problems such as inability to achieve high viscosity, high damping coefficient, inconvenience for customers, and low damping coefficient , to achieve the effect of obvious shock absorption and noise reduction, improve the bonding performance and strength, and widen the damping temperature range.

Inactive Publication Date: 2017-09-19
三友(天津)高分子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the viscosity of the film is high, its damping coefficient is low; when the damping coefficient of the film is high, its viscosity is low, and the requirements of high viscosity and high damping coefficient cannot be achieved.
In addition, the commonly used rubber-based damping materials usually need to be heated and vulcanized after being fixed on the surface of the substrate, which makes the construction complicated and brings great inconvenience to customers.

Method used

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  • High-performance damping film

Examples

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Effect test

preparation example Construction

[0017] The preparation method of high-performance damping film, the steps are as follows:

[0018] (1), butyl rubber is plasticized with an open mill;

[0019] (2), mix the plasticized butyl rubber with the remaining tackifying resin and filler with a three-roll mixer or internal mixer, and discharge;

[0020] (3) Extrude the mixed material with a calender to form a damping rubber layer 1, and bond a layer of reflective layer 2 on the damping rubber layer 1 to obtain a high-performance damping film.

[0021] Tackifying resins are liquid polybutadiene, epoxy resin, rosin resin, hydrogenated rosin, disproportionated rosin, polymerized rosin, esterified rosin, maleated rosin, terpene resin, petroleum resin, dicyclopentadiene (DCPD) resin, coumarone-indene resin, styrene resin and phenolic resin, or a mixture of any two or more.

[0022] The filler is one of carbon black, fumed white carbon black, mica powder, bentonite, talcum powder, glass microspheres, and calcium sulfate whi...

Embodiment 1

[0027] Embodiment 1: a kind of high-performance damping film, the parts by weight of butyl rubber, tackifying resin and filler are:

[0028] 25 parts of butyl rubber, 30 parts of 138 rosin resin, 30 parts of 618 epoxy resin, 10 parts of PB2400, 60 parts of mica powder, and 10 parts of white carbon black.

[0029] Preparation process: ①Multify butyl rubber with an open mixer; ②Mix the butyl rubber plasticized with the remaining 138 rosin resin, 618 epoxy resin, PB2400, mica powder, and white carbon black using an internal mixer Uniform; ③The mixture is extruded with a calender to form a damping rubber layer 1, and a layer of 0.1mm thick glass fiber cloth is bonded to the damping rubber layer 1 to obtain a high-performance damping film; ④Cut according to the required size That's it.

Embodiment 2

[0030] Embodiment 2: a kind of high-performance damping film, the parts by weight of butyl rubber, tackifying resin and filler are:

[0031] 25 parts of butyl rubber, 10 parts of terpene resin, 10 parts of 618 epoxy resin, 40 parts of PB2400, 60 parts of calcium sulfate whiskers, 10 parts of mica powder;

[0032] Preparation process: ① Masticate the butyl rubber with an open mill; ② Mix the masticated butyl rubber with the remaining terpene resin, 618 epoxy resin, PB2400, calcium sulfate whiskers, and mica powder using a three-roller machine Uniform; ③Extrude the mixture with a calender to form a damping rubber layer 1, and bond a layer of 0.2mm thick non-woven fabric on the damping rubber layer 1; ④Cut it according to the required size.

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Abstract

The invention relates to a high-performance damping film. The high-performance damping film is characterized in that butyl rubber is taken as a substrate; the bonding performance of the film is improved by a tackifying resin and a filler; on the premise of ensuring high viscosity of the damping film, high damping performance of the whole damping film is ensured in a wider temperature range. Moreover, a damping layer is provided with a reflecting layer, so that the film strength can be enhanced, and noise is dispersed. During construction, only the film needs to be attached to the surface of the substrate, and sulfur treatment is not required. The high-performance damping film is simple in preparation process, is convenient for construction, is environmentally friendly, contributes to energy saving, and has remarkable damping and denoising effects.

Description

technical field [0001] The invention relates to a high-performance damping film, in particular to a non-vulcanized film for shock and noise reduction. Background technique [0002] With the development of science and technology and modern industry, mechanical equipment tends to be high-speed and automatic, and high-power machinery continues to increase. The problems of equipment vibration, fatigue failure and noise pollution caused by it are also becoming more and more serious. Vibration not only affects the improvement of mechanical equipment performance, seriously damages the stability and reliability of mechanical equipment operation, causes equipment fatigue and decreases the service life, but also increases the cost of enterprise maintenance, repair and replacement, and a large amount of noise pollution caused by vibration It pollutes the environment, and at the same time interferes with people's lives, endangers people's health, makes people tired, tinnitus, and in sev...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J193/04C09J123/22C09J109/00C09J157/02C09J145/02C09J11/04C09J7/00C09J7/04
CPCC08L2205/03C08L2205/035C09J7/00C09J11/04C09J109/00C09J157/02C09J163/00C09J193/04C09J2301/30C09J2301/408C09J2400/143C09J2400/263C08L93/04C08L23/22C08L9/00C08K3/34C08K3/36C08L63/00C08L45/00C08K7/08C08L57/02C08K7/20
Inventor 段亚冲高之香李建武吴子刚陈雨李程李士学
Owner 三友(天津)高分子技术有限公司
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