Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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A Study on Foaming Characteristics of Polyurethane Depending On Environmental Temperature and Blowing Agent Content

반응온도와 발포제 함량에 따른 폴리우레탄 발포특성에 관한 연구

  • 김홍석 (대구대학교 자동차.산업.기계공학부) ;
  • 윤재웅 (대구대학교 자동차.산업.기계공학부)
  • Published : 2009.06.01
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Abstract

Polyurethane has been one of the most important materials for automobile elastic parts such as bumper, head rest, instrument panel and so on since it covers very wide range of mechanical characteristics with low production costs. The processing variables such as formulation of ingredients and mold temperature, mixing speed, etc. can affect the quality of produced polyurethane foams so that process conditions should be determined appropriately. In this study, foaming behaviors of semi-rigid polyurethane were investigated by conducting cup foam tests with two major processing variables such as environmental temperature and blowing agent content. In addition, it was verified that processing conditions of real practice can be determined effectively by considering foaming characteristics obtained by the cup foam tests.

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References

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