環氧樹脂／酚液化柳杉摻合樹脂製作環氧發泡體

Manufacturing of Epoxy Foams from the Blending of Epoxy Resin and Phenol-Liquefied Cryptomeria Japonica

康甄玲(Chen-Ling Kang) ； 吳秋昌(Chiou-Chang Wu) ； 李文昭(Wen-Jau Lee)

《林產工業》 28卷3期 (2009/12) Pp. 177-188

https://doi.org/10.6561/FPI.2009.28(3).3

摘要

本研究以環氧樹脂及添加酚液化柳杉之摻合樹脂為基質，三乙基四胺為硬化劑，聚矽氧烷為發泡劑製作環氧樹脂發泡體，並探討不同硬化劑／發泡劑添加量條件對所得發泡體機械性質及熱性質之影響。試驗結果顯示，以環氧樹脂為基質製作發泡體時，硬化劑／發泡劑添加量20/1.8及20/3.5（part/part）者有較低之發泡體密度，以摻合樹脂為基質者則密度較高。摻合樹脂發泡體之壓縮應力及壓縮彈性係數較環氧樹脂發泡體低，且隨發泡劑添加量增加而下降。以環氧樹脂為基質之發泡體其熱裂解主要發生在350-500℃之間，而摻合樹脂在加熱至100℃即發生熱裂解現象，其熱裂解行為包含三個階段，然加熱至700℃之重量保留率較環氧樹脂高，且隨發泡劑添加量增加而提高。

關鍵字

摻合樹脂 ； 環氧樹脂 ； 發泡體 ； 液化柳杉

並列摘要

Epoxy resin foams were made, respectively, by using epoxy resins and blending resins with phenol-liquefied Cryptomeria japonica as base materials. The triethylene tetramine and polysiloxane were used as a hardener and a blowing agent, respectively. The effect of the amount of hardener and blowing agent on the mechanical and thermal properties of foams was investigated. The experimental results showed that when foams were made with epoxy resin as a base material, the foams including the hardener/blowing agent with the ratio of 20/1.8 and 20/3.5 (part/part) had lower density. However, with the blending resin as a base material, the foams had higher density. The forms made with blending resin had lower compression stress and elasticity modulus than those with epoxy resin. Moreover, with the increasing amount of blowing agent, the compression stress and the elasticity modulus of the foams decreased. The predominant thermal degradation of foams made with epoxy resin appeared at the temperature between 350℃ and 500℃. For foams made with blending resin, a three-stage thermal degradation started at 100℃ However, they had higher weight retention than those made with epoxy resin at 700℃. Besides, the more blowing agent was added, the higher weight retention would be.

並列關鍵字

Blending resin ； Epoxy resin ； Foam ； Liquefied Cryptomeria japonica