氧化硼对聚磷酸钙纤维力学和降解性能的影响  

Boron Oxide on Mechanical and Degradation Property of Calcium Polyphosphate Fibers

作　　者：强小虎 李彬彬 黄大建 周松毅 QIANG Xiao-Hu;LI Bin-Bin;HUANG Da-Jian;ZHOU Song-Yi(School of Materrials Science and Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学材料科学与工程学院,兰州730070

出　　处：《无机材料学报》2019年第2期201-206,共6页Journal of Inorganic Materials

基　　金：国家自然科学基金(31360230);甘肃省教育厅重点科研项目(2015A-060)

摘　　要：采用熔融拉丝法制备聚磷酸钙纤维(CalciumPolyphosphateFibers,CPPF)。探究不同质量分数的B_2O_3对CPPF的降解性能和力学性能的影响。利用傅立叶红外光谱仪、扫描电子显微镜(SEM)等对材料的结构及其性能进行表征。研究表明:随着B_2O_3质量分数的增加, CPPF的拉伸强度和模量有了明显的提高,但纤维表面变得粗糙;同时CPPF的阻降性能随着B_2O_3含量的升高而提高,且降解后的纤维表面的裂纹减少。B_2O_3具有较优的阻降效果,当B_2O_3的添加量为9%时,其拉伸强度和模量比未添加的CPPF提高了146%和153%;在降解16 d后,其质量损失率相对于未添加的CPPF减少了31%。Calcium polyphosphate fibers(CPPF)were prepared by melt-drawing method.Effect of B2O3 with different mass fraction on degradation and mechanical properties of CPPF was studied.The obtained CPPF were characterized by Fourier transform infrared spectroscopy(FT-IR)and scanning electron microscopy(SEM).Results showed that tensile strength and modulus of CPPF were improved obviously with increase of mass fraction of B2O3.Moreover,the surface morphology of CPPF was influenced by the introducing of B2O3.In addition,the degradation ratio and cracks on the surface of CPPF decreased with increase of B2O3 content.Tensile strength and modulus of CPPF with B2O3 loading of 9%increased sharply by 146%and 153%compared to neat CPPF,respectively.After 16 d,the mass loss ratio of CPPF with B2O3 loading of 9%in the degradation process is reduced by 31%compared to the neat CPPF.

关 键 词：聚磷酸钙纤维 B_(2)O_(3) 力学性能 降解性能 

分 类 号：TQ174[化学工程—陶瓷工业]