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Influence of ultrasonic treatment & clay concentration on properties of polyurethane foam

저작시기 2008.12 |등록일 2009.01.08 파워포인트파일MS 파워포인트 (ppt) | 18페이지 | 가격 3,000원

소개글

[1] Enhanced modulus and dimensional stability
[2] Improved chemical resistance
[3] Decreased gas and liquid permeability
[4] Decreased flammability
[5] Decreased cell size and thermal conductivity

목차

[1] introduction
[2] Experimental
[3] Results and discussion
[4] Conclusions

본문내용

Silicone surfactant
[1] Lower the surface tension of the Urethane system to facilitate
a mix of raw materials and the air bubbles grow.
[2] Lower between air bubbles and other one’s pressure,
and prevent the spread of gas.
[3] Increasing and uniformalizing size to make the Urethane cells.




① Dispersion of caly in
polyol
② Mixing other material
(forming agent, Bridge
reaction catalyst.. )
③ Mixing MDI & mixture
④ Foaming

참고 자료

[1] Effects of Ultrasound on the Synthesis and
Properties of Polyurethane Foam
,Clay Nanocomposites, W.J.Seo and 8

[2] POLYURETHANE [PU tech]  - www.pufoam.com

[3] http://www.e-urethane.com

[4] Polyurethane Form - Clay Nanocomposites
,Nanoclays as Cell Openers - G.Harikrishnan

[5] R. M. Hill, “Silicone Surfactant”, marcel Dekker, New York, pp.141~142
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