详细信息
SI-ATRP法制备纳米纤维素增强热塑性弹性体及其性能研究 被引量:1
Synthesis and Characterization of Self-reinforced Cellulose Nanocrystals Based Thermoplastic Elastomers by SI-ATRP
文献类型:期刊文献
中文题名:SI-ATRP法制备纳米纤维素增强热塑性弹性体及其性能研究
英文题名:Synthesis and Characterization of Self-reinforced Cellulose Nanocrystals Based Thermoplastic Elastomers by SI-ATRP
作者:卢传巍[1] 郭腾飞[1] 王春鹏[1,2] 储富祥[1,2] 王基夫[1,2]
第一作者:卢传巍
机构:[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室;[2]中国林业科学研究院林业新技术研究所
年份:2018
卷号:38
期号:1
起止页码:59-65
中文期刊名:林产化学与工业
外文期刊名:Chemistry and Industry of Forest Products
收录:CSTPCD;;Scopus;北大核心:【北大核心2017】;CSCD:【CSCD2017_2018】;
基金:中国林科院中央级公益性科研院所基本科研业务费专项资金资助(CAFYBB2016ZD007)
语种:中文
中文关键词:表面引发原子转移自由基聚合法;纳米纤维素;热塑性弹性体
外文关键词:SI-ATRP; cellulose nanocrystals (CNCs) ; thermoplastic elastomer
分类号:TQ35
摘要:以脱脂棉为原料制备纳米纤维素(CNCs),并通过表面引发原子转移自由基聚合法(SI-ATRP),在牺牲引发剂2-溴代异丁酸乙酯(EBiBr)存在的条件下,将甲基丙烯酸月桂酯(LMA)和甲基丙烯酸四氢糠基酯(THFMA)接枝到CNCs的表面,制备了CNCs增强的复合热塑性弹性体材料(CTPEs),并通过FT-IR、1H NMR和GPC证明成功制备了CTPEs。采用DSC和拉伸试验机对CTPEs的热力学性能和机械性能进行分析,DSC测试表明:随着THFMA含量的增加,CTPEs的玻璃化温度(Tg)由-0.04℃逐渐增加到22.58℃,CTPEs的拉伸强度由0.14 MPa增加到6.17 MPa。此外,通过比较具有相同THFMA/LMA单体投料比的CTPE-3与线性共聚物P(LMA-coTHFMA)的机械性能发现:CTPEs的拉伸强度较P(LMA-co-THFMA)提高了3倍,表明接枝后的CNCs可以实现CTPEs力学性能的增强。
Degreasing cotton was used to prepare an initiator for surface-initiated atom transfer radical polymerization (SI-ATRP). Subsequently, SI-ATRP of tetrahydrofurfuryl methacrylate (THFMA) and lanryl methacrylate (LMA) was carried out in the presence of sacrificial initiator (EBiBr) to prepared self-reinforced CNCs based thermoplastic elastomers (CTPEs). FT-IR, 1H NMR and GPC were applied to characterize the structure of CTPEs. DSC analysis showed that the glass transition temperature (Tg) of CTPEs was increased from - 0.04 ℃ to 22.58 ℃ with the increasing of THFMA content. Mechanical properties test showed that the tensile strength was increased from 0.14 MPa to 6.17 MPa with the increasing of THFMA content in the feeding. And compared to the linear copolymer P(LMA-co-THFMA) which has the same THFMA/LMA composition, the tensile strength of CTPEs was increased by 3 times, which indicated that CNCs could greatly improve the mechanical properties of CTPEs.
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