本文關鍵詞：高柔性隔熱軟木復合材料的制備與性能　出處：《材料工程》2017年11期 　論文類型：期刊論文

  更多相關文章： 軟木復合材料 聚氨酯膠黏劑 柔性 隔熱 力學性能

【摘要】：以單組分濕固化的聚氨酯(U030)作為膠黏劑制備的軟木復合材料(RC16),密度為0.40g/cm~3,具有優(yōu)異的柔韌性和力學性能�？疾炝四z黏劑的含量、軟木粒子的含水率、固化條件等因素對RC16軟木隔熱性能、柔韌性及力學性能的影響。結(jié)果表明:合成的膠黏劑U030與軟木粒子之間具有良好的相容性和粘接性,可完全包裹軟木粒子且分散均勻;材料的力學性能隨著軟木粒子含水率的增加呈現(xiàn)先提高后降低的趨勢,在7.0%時達到最大值;隨著U030含量的增加,RC16軟木的各項性能均呈現(xiàn)先上升后趨于穩(wěn)定的趨勢,但其熱導率也相應提高,當U030含量為30%時材料的綜合性能最佳;確定RC16軟木的最佳固化工藝條件為:固化溫度110℃,固化時間1.5h;RC16軟木具有良好的耐熱性,可在20s內(nèi)承受800℃高溫燒蝕。
[Abstract]:The cork composite prepared with one-component wet-cured polyurethane (U030) as adhesive has a density of 0.40 g / cm ~ (-3) and a density of 0.40 g / cm ~ (-3). It has excellent flexibility and mechanical properties. The thermal insulation of RC16 cork was investigated by the content of adhesive, moisture content of cork particles, curing conditions and so on. The results show that the synthesized adhesive U030 has good compatibility and adhesion with cork particles, and can be completely wrapped in cork particles and dispersed uniformly. With the increase of cork particle moisture content, the mechanical properties of the material increased first and then decreased, and reached the maximum value at 7.0. With the increase of U030 content, the properties of RC16 cork increased first and then tended to be stable, but its thermal conductivity also increased. When the content of U030 is 30, the comprehensive properties of the material are the best. The optimum curing conditions of RC16 cork were determined as follows: curing temperature 110 鈩，

本文編號：1380047