Production of polyester elastic microfoaming board

A technology of polyester elastomer and production method, which is applied in the production field of polyester elastomer micro-foamed board, can solve the problems of loss of shock absorption and anti-noise effect, weakening of elasticity, etc., and achieve reduced shock absorption performance, long service life, and Excellent shock absorption effect

Inactive Publication Date: 2007-11-21
江苏联冠科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional shock-absorbing backing plate made of rubber can no longer meet this development demand. In the above) state, the elasticity will be greatly weakened, thus losing the effect of shock absorption and anti-noise

Method used

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Examples

Experimental program
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Embodiment Construction

[0014] The production method of polyester elastomer micro-foamed board according to the present invention is characterized in that polyester elastomer is used as raw material, and an appropriate amount of microencapsulated foaming agent is added according to the required density requirements of different boards Or microencapsulated foaming agent masterbatch, using an extruder and forming a foamed sheet with the required density and thickness through a mold. Usually, the density of the foamed sheet can be controlled at 0.2-1.2g / cm 3 Between, the thickness is controlled between 4mm ~ 60mm. Finally, the foam board is cut to the required size.

[0015] Using this foamed sheet to replace the current rubber backing plate for shock-absorbing floors in railways, especially high-speed railways and urban rail transit, can increase the service life by more than 2.5 times; moreover, the replaced backing plate can be recycled , so it can greatly save resources, reduce environmental pollu...

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Abstract

The invention is concerned with the manufacture method of polyester elastomeric foaming plate that is with damping action, the characteristics is: the polyester elastomer is as the material, uses the microcapsule vesicant or the microcapsule vesicant mother grain to make the foaming plate by the extruder and the mould forming.

Description

technical field [0001] The invention relates to a production method of a polyester elastomer micro-foaming board capable of shock absorption. Background technique [0002] In order to solve the problem of shock absorption and noise reduction, especially in rail transit, a shock-absorbing backing plate is generally placed between the track and the foundation. In the past, the material used for this kind of backing plate was rubber. [0003] However, with the continuous increase of train speed and the continuous development of heavy-duty technology, the wheel-rail dynamic effect is intensified, resulting in an increase in the vibration acceleration of the rail, sleeper and ballast bed, which not only puts forward higher requirements for the strength and stability of the sleeper structure, More and more attention is paid to the vibration and noise that is produced thereupon. However, the traditional shock-absorbing backing plate made of rubber can no longer meet this developme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/14B29K67/00B29K105/06B29C48/305
Inventor 黄学祥王德禧耿传智严为群陈勇李猛
Owner 江苏联冠科技发展有限公司
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