Biocomposites composed of epoxidized soybean oil cured with terpene-based acid anhydride and cellulose fibers
Biocomposites composed of epoxidized soybean oil cured with terpene-based acid anhydride and cellulose fibers
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DOI：
10.1002/app.27866
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发表时间：
2008-05
影响因子：
3
通讯作者：
Tsutomu Takahashi;K. Hirayama;N. Teramoto;M. Shibata
中科院分区：
文献类型：
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作者：
Tsutomu Takahashi;K. Hirayama;N. Teramoto;M. Shibata
在150°C下，用萜烯基酸酐（TPAn）固化环氧大豆油（ESO），并将固化产物的热性能和机械性能与用六氢邻苯二甲酸酐（HPAn）、马来酸化亚麻籽油（LOAn）或热潜伏性阳离子聚合催化剂（CPI）固化的ESO进行比较。通过动态力学分析测定，ESO - TPAn的玻璃化转变温度（67.2°C）比ESO - HPAn（59.0°C）、ESO - LOAn（-41.0°C）和ESO - CPI（10.0°C）更高。ESO - TPAn在20°C时的储能模量高于ESO - LOAn和ESO - CPI。此外，ESO - TPAn比其他固化的ESO显示出更高的拉伸强度和模量。关于在活性污泥中通过生化需氧量测量的生物降解性，ESO - TPAn具有一定的生物降解性，但低于ESO - LOAn。接下来，通过压缩成型法制备由ESO - TPAn和再生纤维素（莱赛尔）织物组成的生物复合材料。ESO - TPAn/莱赛尔复合材料的拉伸强度随着纤维含量的增加而增加。纤维含量为75 wt%的ESO - TPAn/莱赛尔复合材料的拉伸强度和模量分别为65 MPa和2.3 GPa，是ESO - TPAn的三倍。© 2008威利期刊公司，《应用聚合物科学杂志》，2008年
Epoxidized soybean oil (ESO) was cured with a terpene-based acid anhydride (TPAn) at 150°C, and the thermal and mechanical properties of the cured product were compared with ESO cured with hexahydrophthalic anhydride (HPAn), maleinated linseed oil (LOAn), or thermally latent cationic polymerization catalyst (CPI). The ESO-TPAn showed a higher glass transition temperature (67.2°C) measured by dynamic mechanical analysis than ESO-HPAn (59.0°C), ESO-LOAn (−41.0°C), and ESO-CPI (10.0°C). The storage modulus at 20°C of ESO-TPAn was higher than those of ESO-LOAn and ESO-CPI. Also, ESO-TPAn showed higher tensile strength and modulus than the other cured ESOs. Regarding the biodegradability measured by biochemical oxygen demand in an activated sludge, ESO-TPAn possessed some biodegradability, which was lower than that of ESO-LOAn. Next, biocomposites composed of ESO-TPAn and regenerated cellulose (lyocell) fabric were prepared by compression molding method. The tensile strength of ESO-TPAn/lyocell composites increased with increasing fiber content. The tensile strength and modulus of ESO-TPAn/lyocell composite with fiber content 75 wt % were 65 MPa and 2.3 GPa, which were three times higher than those of ESO-TPAn. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008