全文下载： 
202302006.pdf
文章编号： 1672-6987（2023）02-0037-11； DOI： 10.16351/j.1672-6987.2023.02.006
李畅1， 李果1， 郭付海1， 刘茹1， 李芝颖1， 赵健1*， 胡海青1，2*(1.青岛科技大学 橡塑材料与工程教育部重点实验室/山东省橡塑材料与工程重点实验室，山东 青岛 266042；
2.四川大学 高分子材料工程国家重点实验室，四川 成都 610065）
摘要： 氮化硼纳米片(BNNSs)因其独特的结构和优异的物理性能，常被用作聚合物复合材料的纳米增强填料。通过溶液浇铸法将羟基改性氮化硼纳米片(OH-BNNSs)和氨基功能化氮化硼纳米片(NH2-BNNSs)与聚偏氟乙烯(PVDF)共混，形成PVDF/OH-BNNSs复合材料和PVDF/NH2-BNNSs复合材料。差示扫描量热法(DSC)、广角X射线衍射(WAXD)和傅里叶变换红外光谱(FT-IR)表明：OH-BNNSs的加入对PVDF的晶体结构影响不大，非极化α-晶体主要形成在PVDF/OH-BNNSs复合材料中，而少量NH2-BNNSs的加入可以导致极化β-相的形成。X射线光电子能谱(XPS)表明无论是固态还是熔融态，PVDF与NH2-BNNSs之间的相互作用都比PVDF与OH-BNNSs之间的相互作用更强，这是PVDF/NH2-BNNSs纳米复合材料晶相转变和加速结晶的原因。
关键词： 功能化氮化硼纳米片； 聚偏氟乙烯； 纳米复合材料； 极性晶相
中图分类号： O 643.36+1文献标志码： A
引用格式： 李畅，李果，郭付海，等.功能化氮化硼纳米片对聚偏氟乙烯结晶的影响［J］. 青岛科技大学学报(自然科学版), 2023, 44(2): 37-47.
LI Chang,LI Guo, GUO Fuhai,et al.Effect of functionalized boron nitride nanosheets on crystallization of polyvinylidene fluoride［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2023， 44（2）： 37-47.
作者简介： 李畅（1995—），男，硕士研究生.*通信联系人.
Effect of Functionalized Boron Nitride Nanosheets on
Crystallization of Polyvinylidene Fluoride
LI Chang1, LI Guo1, GUO Fuhai1, LIU Ru1, LI Zhiying1, ZHAO Jian1， HU Haiqing1,2
(1.Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics,
Qingdao University of Science and Technology, Qingdao 266042, China;
2. State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China)
Abstract: Boron nitride nanosheets (BNNSs) are often used as nano reinforcing fillers for polymer composites because of their unique structure and excellent physical properties. Hydroxyl modified boron nitride nanosheets (OH-BNNSs) and amino functionalized boron nitride nanosheets (NH2-BNNSs) were blended with polyvinylidene fluoride (PVDF) by solution casting to form PVDF/OH-BNNSs composites and PVDF/NH2-BNNSs composites. Differential scanning calorimetry (DSC), Wide-angle X-ray diffraction (WAXD) and Fourier Transform infrared spectroscopy (FTIR) show that the addition of OH-BNNSs had little effect on the crystal structure of PVDF, and the non-polarized α-crystals are mainly formed in PVDF/ OH-BNNSS composites. The addition of a small amount of NH2-BNNSS can lead to the formation of polarized β- phase. X-ray electron spectroscopy (XPS) shows that the interaction between PVDF and NH2-BNNSs is stronger than that between PVDF and OH-BNNSs, which is the reason for the crystal phase transformation and accelerated crystallization of PVDF/NH2-BNNSs nanocomposites.
Key words: functionalized boron nitride nanosheets; polyvinylidene fluoride; nanocomposite; polar phase
收稿日期： 2022-05-20
基金项目： 高分子材料工程国家重点实验室（四川大学）开放课题基金项目 （sklpme2020-4-04）.
