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Effect of coupling agent content on properties of composites made from polylactic acid and chrysanthemum waste
Journal of Vinyl and Additive Technology ( IF 2.7 ) Pub Date : 2019-05-21 , DOI: 10.1002/vnl.21710
Koay Seong Chun 1 , Chan Ming Yeng 2 , Chou Pui May 1 , Tshai Kim Yeow 3 , Ong Thai Kiat 4 , Cheah Kean How 5
Affiliation  

Chrysanthemum flower is among one of the highly sought after and widely planted flower crops, in particular for cultural and religious ceremonies. However, the chrysanthemum stem and stalk have little value and usually discard as by‐product waste from floristry. The objective of this research is to investigate the potential value of utilizing chrysanthemum stem and stalk as reinforcing fillers for thermoplastic composites. In this study, 2‐mm thick composite sheet containing predefined formulations of polylactic acid (PLA), chrysanthemum waste filler (CWF) ranging from 15 to 60 phr, and maleated polyethylene (MAPE) coupling agent up to 5 phr were prepared with the aid of Haake internal mixer and compression molding. The effect of MAPE loading on tensile, thermal, and morphological properties of PLA/CWF composites was investigated. The findings revealed that PLA/CWF composite attained improved tensile modulus compared to the neat PLA, and the tensile modulus increases with higher concentration of CWF. However, both tensile strength and elongation at break reduces with increase loading of CWF. Overall, PLA/CWF composites with MAPE shows better performance compared to those without MAPE, where an optimum strength of 21.8 MPa can be achieved with 60 phr CW and 3 phr MAPE. The measured tensile strength is comparable to alternatives natural fiber thermoplastic composites demonstrating its potential to be used in non‐structurally demanding application. J. VINYL ADDIT. TECHNOL., 26:10–16, 2020. © 2019 Society of Plastics Engineers

中文翻译:

偶联剂含量对聚乳酸与菊花废料复合材料性能的影响

菊花花是最受欢迎的花农之一,特别是在文化和宗教仪式上,广泛种植。但是,菊花茎和茎几乎没有价值,通常作为植物副产品废料丢弃。这项研究的目的是研究利用菊花茎和茎作为热塑性复合材料的增强填料的潜在价值。在这项研究中,借助该辅助材料,制备了2毫米厚的复合片材,其中包含预定配方的聚乳酸(PLA),菊花废填料(CWF)从15至60 phr,以及马来酸化的聚乙烯(MAPE)偶联剂至5 phr。 Haake内部混合器和压缩成型。研究了MAPE负载对PLA / CWF复合材料拉伸,热和形态性能的影响。研究结果表明,与纯PLA相比,PLA / CWF复合材料具有更高的拉伸模量,并且随着CWF浓度的增加,拉伸模量增加。但是,抗拉强度和断裂伸长率均随CWF载荷的增加而降低。总体而言,含MAPE的PLA / CWF复合材料比不含MAPE的复合材料表现出更好的性能,后者可通过60 phr的CW和3 phr的MAPE达到21.8 MPa的最佳强度。测得的拉伸强度可与替代天然纤维热塑性复合材料相媲美,证明了其在非结构性要求较高的应用中的潜力。J.乙烯基添加物。TECHNOL。,26:10–16,2020.©2019塑料工程师协会 随着CWF浓度的增加,拉伸模量增加。但是,抗拉强度和断裂伸长率均随CWF载荷的增加而降低。总体而言,含MAPE的PLA / CWF复合材料比不含MAPE的复合材料表现出更好的性能,其中使用60 phr CW和3 phr MAPE可获得21.8 MPa的最佳强度。测得的拉伸强度可与替代天然纤维热塑性复合材料相媲美,证明了其在非结构性要求较高的应用中的潜力。J.乙烯基添加物。TECHNOL。,26:10–16,2020.©2019塑料工程师协会 随着CWF浓度的增加,拉伸模量增加。但是,抗拉强度和断裂伸长率均随CWF载荷的增加而降低。总体而言,含MAPE的PLA / CWF复合材料比不含MAPE的复合材料表现出更好的性能,后者可通过60 phr的CW和3 phr的MAPE达到21.8 MPa的最佳强度。测得的拉伸强度可与替代天然纤维热塑性复合材料相媲美,证明了其在非结构性要求较高的应用中的潜力。J.乙烯基添加物。TECHNOL。,26:10–16,2020.©2019塑料工程师协会 用60 phr CW和3 phr MAPE可以达到8 MPa。测得的拉伸强度可与替代天然纤维热塑性复合材料相媲美,证明了其在非结构性要求较高的应用中的潜力。J.乙烯基添加物。TECHNOL。,26:10–16,2020.©2019塑料工程师协会 用60 phr CW和3 phr MAPE可以达到8 MPa。测得的拉伸强度可与替代天然纤维热塑性复合材料相媲美,证明了其在非结构性要求较高的应用中的潜力。J.乙烯基添加物。TECHNOL。,26:10–16,2020.©2019塑料工程师协会
更新日期:2019-05-21
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