无机填料增强PBS可降解复合材料的力学性能研究
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摘要
以玄武岩纤维、硫酸钙晶须为填料,研究了单一无机填料用量、混杂填料用量对增强PBS基复合材料力学性能的影响,并用扫描电子显微镜观察了复合材料的微观形貌.结果表明:单一填料加入时,随着填料用量的增加,BF/PBS、CSW/PBS复合材料的拉伸强度和弯曲强度呈现先增加后减小的趋势,当BF含量为15%时,BF/PBS复合材料的力学性能最优,拉伸强度、弯曲强度、拉伸弹性模量、弯曲弹性模量比纯PBS分别提高了39%、17%、272%、186%.BF与CSW混杂时,当混杂填料总量为20%时,拉伸模量在BF∶CSW为2∶1时最大达到2.08GPa,比纯PBS提高了2.78倍.当混杂填料含量较低为10%时,BF/CSW/PBS复合材料弯曲强度在BF∶CSW为1∶2时达到最大,为68.24 Mpa,较纯PBS提高了17%.
Basalt fiber(BF)and calcium sulfate whisker(CSW)reinforced PBS composites were studied in this paper.The effects of the weight contents of single filler and combined filler on the mechanical properties of PBS based composites were investigated.The results showed that the tensile strength and flexural strength of BF/PBS and CSW/PBS composites increased first and then decreased.Better mechanical properties were obtained when BF content was 15%,the tensile strength,flexural strength,tensile elastic modulus and flexural modulus were increased by 39%,17%,272%,and 186% compared with pure PBS.When the total of 20% hybrid filler loading led to the tensile modulus values of 2.08 Gpa at BF/CSW ratio of 2∶1,which was 2.78 times higher than that of pure PBS.The use of 10%combined fillers enhanced the flexural strength of BF/CSW/PBS values to 68.24 Mpa at BF/CSW ratios of 1∶2,which was 17% higher than that of pure PBS.
Basalt fiber(BF)and calcium sulfate whisker(CSW)reinforced PBS composites were studied in this paper.The effects of the weight contents of single filler and combined filler on the mechanical properties of PBS based composites were investigated.The results showed that the tensile strength and flexural strength of BF/PBS and CSW/PBS composites increased first and then decreased.Better mechanical properties were obtained when BF content was 15%,the tensile strength,flexural strength,tensile elastic modulus and flexural modulus were increased by 39%,17%,272%,and 186% compared with pure PBS.When the total of 20% hybrid filler loading led to the tensile modulus values of 2.08 Gpa at BF/CSW ratio of 2∶1,which was 2.78 times higher than that of pure PBS.The use of 10%combined fillers enhanced the flexural strength of BF/CSW/PBS values to 68.24 Mpa at BF/CSW ratios of 1∶2,which was 17% higher than that of pure PBS.
引文
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[3]岳小鹏,李坚,刘鹏杰,等.木薯渣纤维表面改性对其复合材料性能的影响[J].中国造纸,2018,37(7):36-43.
[4]于旻,党哲,葛正浩,等.玄武岩纤维长度对麦秸秆/PBS发泡复合材料力学性能的影响[J].陕西科技大学学报,2017,35(5):82-85.
[5]The D T,Yoshii F,Nagasawa N,et al.Synthesis of poly(butylene succinate)/glass fiber composite by irradiation and its biodegradability[J].Journal of Applied Polymer Science,2010,91(4):2 122-2 127.
[6]Li W,Qu J P.Mechanical properties of chopped carbon fiber reinforced PBS/CF composites[J].Advanced Materials Research,2014,989-994:587-590.
[7]闫盼盼,熊伟,张保丰,等.CF/CNTs多尺度混杂填充PA6复合材料性能研究[J].塑料科技,2018,46(1):37-41.
[8]徐虹,张可,卢岩,等.玄武岩纤维-碳纤维混杂平纹织物增强环氧树脂基复合材料的制备与力学性能[J].复合材料学报,2018,35(4):767-773.
[9]Sarasini F,TirillòJ,Sergi C,et al.Effect of basalt fibre hybridisation and sizing removal on mechanical and thermal properties of hemp fibre reinforced HDPE composites[J].Composite Structures,2018,188:394-406.
[10]Yang J N,Nie S B,Zhu J B.Fabrication and characterization of poly(lactic acid)biocomposites reinforced by calcium sulfate whisker[J].Journal of Polymers&the Environment,2018,26(8):3 458-3 469.
[11]郭欢欢,张敏,李成涛,等.四针状ZnO晶须改性对ZnO/聚丁二酸丁二醇酯复合材料性能的影响[J].复合材料学报,2018,35(7):1 800-1 809.
[12]刘晓艳,赵素芬,张莉琼,等.PBS/CaCO3复合材料的制备与性能[J].塑料,2017,46(4):26-28.
[13]Piggott M R.Short fibre polymer composites:A fracturebased theory of fibre reinforcement[J].Journal of Composite Materials,1994,28(7):588-606.
[14]Pilla S,Gong S,O'Neill E,et al.Polylactide-pine wood flour composites[J].Polymer Engineering&Science,2008,48(3):578-587.
[15]Huang R,Xu X,Lee S,et al.High density polyethylene composites reinforced with hybrid inorganic fillers:Morphology,mechanical and thermal expansion performance[J].Materials,2013,6(9):4 122-4 138.
[16]梁秋实.功能改性聚丁二酸丁二醇酯复合材料制备与性能研究[D].大连:大连理工大学,2016.
[17]张敏,郭欢欢,王蕾,等.聚丁二酸丁二醇酯/甲壳素晶须复合材料的制备及性能[J].精细化工,2018,35(1):43-50.
[18]杨学莉,于磊,张秀成,等.硫酸钙晶须填充PBS的力学性能与热稳定性[J].塑料,2015,44(2):48-51.