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Composite damping sheets

A composite damping and sheet technology, applied in the fields of construction, transportation, machinery and equipment, can solve the problems of flow deformation, aging, cold flow, etc., and achieve the effect of high damping, low price and good durability

Inactive Publication Date: 2009-06-17
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages of cold flow (that is, flow deformation) and aging when the existing damping material is an elastomer blend containing asphalt when it is pressed or heated, and to provide a method that can effectively avoid A damping sheet that prevents the aging of the damping layer and the cold flow phenomenon that occurs when the external pressure is too high and the temperature is too high

Method used

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  • Composite damping sheets

Examples

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Effect test

Embodiment 1

[0014] Embodiment one, with reference to the attached figure 1 , a composite damping sheet, comprising a damping layer 1, the damping layer is sandwiched with at least one fiber reinforced layer 2, the outer surface of the damping layer is covered with a film layer 3, and the damping material in the damping layer 1 is The blend of asphalt and SBS elastomer, the damping enhancer is mica powder, the fiber reinforced layer material is metal fiber fabric, and the film layer is a fully enclosed plastic film.

Embodiment 2

[0015] Embodiment 2 Refer to the attached figure 1 , a composite damping sheet, comprising a damping layer 1, the damping layer is sandwiched with at least one fiber reinforced layer 2, the outer surface of the damping layer is covered with a film layer 3, and the damping matrix material in the damping layer 1 It is a blend of asphalt and APP elastomer, the strength enhancer is Dura fiber, the filling material is rubber powder, the fiber reinforced layer material is non-metallic fiber fabric, and the film layer is a fully enclosed metal film.

Embodiment 3

[0016] Embodiment Three Refer to the attached figure 1 , a composite damping sheet, comprising a damping layer 1, the damping layer is sandwiched with at least one fiber reinforced layer 2, the outer surface of the damping layer is covered with a film layer 3, and the damping matrix material is asphalt and SBS elastic In the case of a blend of bodies, the fiber reinforced layer material is polymer fiber fabric, and the film layer is a fully enclosed composite film.

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Abstract

A composite damping sheet is composed of a damping sandwich layer consisting of a dampin layer prepared from the mixture of asphalt and elastomer and the additive chosen from damping increaser, strength increaser and filler and a reinforcing fibre layer made of metallic fibre fabric, non-metal fibre fabric, or high-molecular fibre fabric, and an external film layer made of plastic film, metallic film, or composite film.

Description

(1) Technical field [0001] The invention relates to a damping sheet, which is especially suitable for construction, mechanical equipment, vehicles and the like. (2) Background technology [0002] The damping ratio of various existing damping sheets is generally only about 0.20, and the price is high, the strength is low, and the durability is poor. When the damping layer material is an elastomer blend containing asphalt, cold flow (that is, flow deformation) and aging will occur when it is pressed or heated. (3) Contents of the invention [0003] The purpose of the present invention is to solve the disadvantages of cold flow (that is, flow deformation) and aging when the existing damping material is an elastomer blend containing asphalt when it is pressed or heated, and to provide a method that can effectively avoid A damping sheet that prevents the aging of the damping layer and the cold flow phenomenon that occurs when the external pressure is too high and the temperatu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/88B29K105/06B29K9/06B29K23/00B29K31/00B29K495/00B29K509/10B29K505/04B29K201/00B29K267/00B29K309/08B29K511/00B29K421/00B29K511/14B29L7/00
Inventor 钱欣钱国桢
Owner ZHEJIANG UNIV OF TECH
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