Page 209 - 《精细化工》2020年第2期
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第 38 卷第 2 期                             精   细   化   工                                  Vol.38, No.2
             202 1 年 2 月                             FINE CHEMICALS                                 Feb.  2021


              纺织染整助剂
                      液晶聚合物调控的蓄热调温材料的储热性能



                                                                               1
                                                                                            1*
                           仓翌铭       1,2 ,陈煌煌      1,2 ,侯爱芹      1,2 ,谢孔良 ,高爱芹
                 (1.  东华大学  化学化工与生物工程学院,上海  201620;2.  东华大学  国家染整工程技术研究中心,上
                 海  201620)


                 摘要:通过 3,3′,4,4′-二苯甲酮四甲酸二酐(BPTCD)与聚乙二醇 2000(PEG2000)的酯化反应,制备了具有光
                 热响应的相变聚合物 BPTCD-PEG,该聚合物在相变过程中可以形成液晶态。在偏光显微镜下,BPTCD-PEG 呈
                 典型的焦锥花形向列相液晶织构。采用 DSC 对 BPTCD-PEG 的热性能进行表征,结果表明,BPTCD-PEG 在
                 41.7 ℃出现明显的熔融峰,相变潜热为 80.42 J/g,在 30.7  ℃  出现明显结晶峰,对应潜热为 63.71 J/g,表明
                 BPTCD-PEG 具有蓄热调温性能。将该聚合物接枝到棉纤维上,获得了具有蓄热调温性能的纤维素液晶复合材

                 料。对其整理后棉织物表面形貌进行了表征并测试了棉织物的调温性能。在 30~40 ℃内,采用红外热成像仪记
                 录了未整理原棉织物及质量分数为 80%的 BPTCD-PEG 水溶液接枝后的复合材料在不同温度、时间下的升温、
                 降温速率。接枝后的复合材料与未整理原棉织物相比,升温速率与降温速率都明显降低,说明 BPTCD-PEG 起
                 到了升温过程中降低棉织物的表面温度、降温过程中升高棉织物的表面温度的作用,表明在此温度范围内,经
                 BPTCD-PEG 整理后的棉织物具有蓄热调温性能。
                 关键词:相变聚合物;光热响应聚合物;液晶复合材料;纤维素纤维;调温织物;纺织染整助剂
                 中图分类号:TK02;TS195.5      文献标识码:A      文章编号:1003-5214 (2021) 02-0411-08



                         Heat storage properties of temperature-regulated materials
                                       controlled by liquid crystal polymer


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                                                                     1,2
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                                   1,2
                                                        1,2
                      CANG Yiming , CHEN Huanghuang , HOU Aiqin , XIE Kongliang , GAO Aiqin
                 (1. College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai  201620,  China;
                 2. National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai 201620,
                 China)
                 Abstract: Phase change  polymer BPTCD-PEG  was  synthesized by  esterification reaction between
                 3,3′,4,4′-benzophenone tetracarboxylic dianhydride (BPTCD) and  polyethylene glycol 2000  (PEG2000).
                 BPTCD-PEG could form liquid crystal state during the phase change transition process and show a typical
                 focal cone-shaped nematic liquid crystal texture under polarized optical microscope. The thermal properties
                 of BPTCD-PEG were characterized by DSC. The results showed that there was an obvious melting peak at
                 41.7  ℃  and a crystalline  peak at  30.7  ℃, and the latent heat of phase transition  was  80.42 J/g and
                 63.71 J/g,  respectively, indicating that  BPTCD-PEG had remarkable  heat  storage and temperature
                 regulation performance.  BPTCD-PEG was grafted onto  cotton fabric to prepare cellulose liquid crystal
                 composites with heat storage  and  temperature  regulation properties. The  surface morphology of  the
                 modified cotton fabrics was characterized and the  thermal  regulation properties were  tested. In  the
                 temperature  range of 30~40  ℃, the  heating and cooling  rates at  different temperature and time of
                 unmodified pure cotton and modified cotton with 80% BPTCD-PEG were recorded using infrared thermal
                 imager. Compared  with the  unmodified pure cotton,  both heating  rate and cooling  rate of the modified

                 收稿日期:2020-10-20;  定用日期:2020-11-26; DOI: 10.13550/j.jxhg.20200957
                 基金项目:国家重点研发计划项目(2017YFB0309603);中国博士后科学基金资助项目(2019TQ0058);上海市自然科学基金项目
                 (18ZR1400800)
                 作者简介:仓翌铭(1996—),男,硕士生,E-mail:1148165093@qq.com。联系人:高爱芹(1986—),女,副教授,E-mail:gaoaiqin@
                 dhu.edu.cn。
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