亲水性PBS/虎杖提取物复合材料的相容性及性能  

Compatibility and Properties of Hydrophilic PBS/Polygonum Cuspidatum Sieb.et Zucc Extracts Composites

作　　者：宋洁[1] 延小雨 罗翼 张敏[1] 许小玲[1] Song Jie;Yan Xiaoyu;Zhang Min;Xu Xiaoling;Luo Yi(Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education,Shaanxi University of Science & Technology,Xi-an 710021, China;Xi-an Changqing Chemical Group Co. Ltd., Xi-an 710018, China)

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,西安710021 [2]西安长庆化工集团有限公司,西安710018

出　　处：《工程塑料应用》2017年第6期12-17,共6页Engineering Plastics Application

基　　金："863"计划项目子课题项目(2011AA100503)

摘　　要：从天然植物虎杖中提取染色抗菌有效成分获得虎杖提取物(PCSZ),将其与聚丁二酸丁二酯(PBS)亲水改性聚合物PBS–OH和PBS–COOH通过混炼复合,研究了PCSZ与两种亲水性PBS复合后的相容性,测试了不同PCSZ用量下PBS–OH/PCSZ和PBS–COOH/PCSZ复合材料的结晶性能、亲疏水性、热稳定性、拉伸性能和抗菌性能。结果表明,PCSZ中的—OH均可与PBS–OH或PBS–COOH中的酯基产生氢键作用,同时还与改性端基形成H—O…H—O,充分改善了复合材料的相容性。PCSZ的添加对复合材料的结晶形貌不产生影响,但复合材料结晶度随其用量的增加而增大,且水接触角在PCSZ高用量下有所减少,亲水性有所增强;PCSZ可使复合材料的热稳定性和抗菌能力得到提高,当PCSZ用量较高时,PBS–OH/PCSZ复合材料的热稳定性高于PBS–COOH/PCSZ复合材料。与PBS–COOH/PCSZ复合材料相比,PBS–OH/PCSZ复合材料力学性能总体较优,但抗菌能力略差。综合比较两种亲水性PBS/PCSZ复合材料,PBS–OH/PCSZ复合材料的相容性更强。The active ingredients with dyeing and antibacterial function were extracted from Polygonum cuspidatum Sieb.etZucc to obtain the extracts(PCSZ),and the extracts was compounded with poly(butylene succinate)(PBS)hydrophilic modifiedpolymer PBS–OH and PBS–COOH,the compatibility of the PCSZ with the two hydrophilic modified PBS polymers were studied,the crystallinity,hydrophobicity,thermal stability,tensile properties and antibacterial ability of PBS–OH/PCSZ and PBS–COOH/PCSZ composites with different PCSZ contents were tested.The results show that the-OH of PCSZ can produce hydrogen bondswith the ester groups in both PBS–OH and PBS–COOH,and also form H-O…H-O with the modified end groups,which greatlyimproves the compatibility of the composites.The addition of PCSZ does not affect the crystalline morphology of the composites,but makes the crystallinity increase with the increasing of the PCSZ contents,the water contact angle is reduced under the high PCSZcontents,which indicates the hydrophilicity is enhanced.PCSZ also improves the thermal stability and antibacterial ability of thecomposites,the thermal stabilities of PBS–OH/PCSZ composites are superior to PBS–COOH/PCSZ composites when PCSZ contentis high.Compared with PBS–COOH/PCSZ composites,the mechanical properties of PBS–OH/PCSZ composites are betterin total,but the antibacterial ability is slightly worse.Comparing these two hydrophilic PBS/PCSZ composites,the compatibility ofthe PBS–OH/PCSZ composites are stronger.

关 键 词：虎杖 聚丁二酸丁二酯 亲水改性 复合材料 相容性 抗菌性能 

分 类 号：TQ321.3[化学工程—合成树脂塑料工业]