木质素改性HAp/PVA生物复合材料研究  

Study on Lignin Modified HAp/PVA Biocomposite

作　　者：韦文榜[1,2] 宋伟[1] 张双保[1] WEI Wen-bang;SONG Wei;ZHANG Shuang-bao(Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China;Guangxi Eco-engineering Vocational and Technical College, Liuzhou 545004, China)

机构地区：[1]北京林业大学木材科学与工程北京市重点实验室 [2]广西生态工程职业技术学院

出　　处：《林产工业》2018年第6期8-11,共4页China Forest Products Industry

基　　金：国家自然科学基金(31670571);北京市自然科学基金(6162019);"十三五"国家重点研发计划"竹基纳米掺杂碳素材料制备关键技术"(2017YFD0600804);浙江省共建项目"重组竹复合材料及环保型胶粘剂的研发与应用"(CZXC201410);2013广西高校科学技术研究项目(编号2013YB321)

摘　　要：为实现制浆造纸行业剩余物中木质素的高值化利用,研究了有机溶剂型木质素/纳米羟基磷灰石/聚乙烯醇(EOL/HAp/PVA)复合材料的制备与性质。1)采用化学沉淀法合成HAp,其XRD谱图中发现归属于(002)、(211)、(112)、(202)、(310)晶面的特征峰;其FTIR图中发现归属于PO_4^(3-)基团的特征峰,证实HAp的存在。2)结合超声处理、聚合物共混技术制备出EOL为0、3.5%、7%(质量分数)的EOL/HAp/PVA复合材料。3)复合材料各组分间存在氢键,由此构成了EOL/HAp/PVA体系的有机-无机杂化界面。4)随EOL含量上升,EOL/HAp/PVA外观由白变棕、微观质地更加均匀、柔性有所增强。5)EOL/HAp/PVA复合材料性能良好,表明其具备用于人工关节软骨的潜力。To achieve the high value-added scientific utilization of the byproduct lignin from the pulp and paper industry, the preparation and properties of the ethanol organosolv lignin/nanohydroxyapatite/polyvinylalcohol composites were investigated：（1） By the chemical precipitation method, the HAp was synthesized; its X-ray diffractometry（XRD） spectra exhibit peaks respectively assigned to the（002）,（211）,（112）,（202） and（310） planes, while its Fourier transform infrared spectrometry（FTIR） spectra exhibit peaks assigned to PO43-groups, thus demonstrating the existing of the HAp.（2） Combining the ultrasonic treatment and the polymer blend technique, the EOL/HAp/PVA composites with 0, 3.5% and 7% EOL were prepared（by weight）.（3） There are hydrogen bonds, thus forming the organic-inorganic hybrid interface of the EOL/HAp/PVA system.（4） With the increase of the dosage of EOL, the appearance of the EOL/HAp/PVA turns from white to brown, the texture become more homogeneous, and the flexibility is improved.（5） The EOL/HAp/PVA composites feature excellent performances, thus confirming the potential of the abundant and inexpensive EOL to prepare artificial articular cartilages in the field of the biomedicine.

关 键 词：木质素 纳米羟基磷灰石 聚乙烯醇 水凝胶 生物复合材料 

分 类 号：S784[农业科学—林学] TS6[轻工技术与工程]