以高密度聚乙烯(HDPE)为基体材料,油茶果壳(COS)作为增强材料,通过挤出注塑工艺制备了COS/HDPE复合材料。深入研究了复合材料的微观结构,并在此基础上探讨了COS的加入量对于复合材料力学性能及热学性能的影响。结果表明,复合材料的弯曲性能及热稳定性随着COS加入量的增加而提高。当添加的COS量达到40%时,复合材料具有最大抗弯强度、模量及最佳的热稳定性。同时,热重分析表明,COS的加入能够略微地阻止复合材料在高温下的热解。
Using High density polyethylene (HDPE) as matrix and camellia oleifera shell (COS) as reinforcement material,COS/HDPE composites were prepared by extrusion and injection molding process.The microstructure of the composites was studied,and the influence of COS content on the mechanical and thermal properties of the composites was investigated.The results showed that the flexural property and thermal stability of the composites were improved with the increase of COS content.The composite had the maximum flexural strength and modulus and the best thermal stability when the COS content reached 40%.At the same time,TG analysis indicated that the addition of COS could slightly prevent the pyrolysis of the composites at high temperature.
[1] 刘雪梅,陈嘉玮,王宇航.油茶壳活性炭的制备及应用研究进展[J].应用化工,2018,47(3):190-192,210.
[2] 陈吉朋,汪亚东,周宏平.油茶果采收机械与分选技术综述[J].林业工程学报,2024,9(4):12-24.
[3] Yang X,Wang H,Strong P,et al.Thermal properties of biochars derived from waste biomass generated by agricultural and forestry sectors[J].Energies,2017,10(4):469.
[4] Song C,Zhang C,Zhang S,et al.Thermochemical liquefaction of agricultural and forestry wastes into biofuels and chemicals from circular economy perspectives[J].Science of The Total Environment,2020,749:141972.
[5] 陈厶墁,贾赵平,邱梦杰.生物壳制备吸附-光催化碳材料及其性能[J].林业工程学报,2024,9(1):92-100.
[6] 王佳,张助坤,蒋剑春.生物质与橡胶共热解研究进展[J].林业工程学报,2023,8(2):10-20.
[7] 游瑞云,王文荣,王浩楠,等.LDPE/油茶果壳复合材料的制备及力学性能[J].泉州师范学院学报,2021,39(6):12-16.
[8] 刘竹,杨守禄,姬宁,等.油茶果壳高值化利用研究进展[J].材料导报,2020,34(1):120-127.
[9] Yamoum C,Magaraphan R.Effect of peanut shell content on mechanical,thermal,and biodegradable properties of peanut shell/polylactic acid biocomposites[J].Polymer Composites,2017,38(4):682-690.
[10] Ayrilmis N,Kaymakci A,Ozdemir F.Physical,mechanical,and thermal properties of polypropylene composites filled with walnut shell flour[J].Journal of Industrial and Engineering Chemistry,2013,19(3):908-914.
[11] 黄志祥,胡传双,涂登云,等.油茶果壳/杨木/HDPE复合材料的制备及性能研究[J].林产工业,2023,60(11):1-8.
[12] 刘翔宇,杨逸飞,徐道春,等.高填充油茶果壳基木塑复合材料的制备及力学性能[J].工程塑料应用,2024,52(1):1-7.
[13] Hao X,Xu J,Zhou H,et al.Interfacial adhesion mechanisms of ultra-highly filled wood fiber/polyethylene composites using maleic anhydride grafted polyethylene as a compatibilizer[J].Materials & Design,2021,212:110182.
[14] Fan F,Zheng Y,Huang Y,et al.Preparation and characterization of biochars from waste camellia oleifera shells by different thermochemical processes[J].Energy & Fuels,2017,31(8):8146-8151.
[15] 吴昊,陈沛均,胡传双,等.油茶果壳对PE-HD力学性能的影响[J].工程塑料应用,2021,49(3):135-139.
[16] 谢良科,黄骏成,龚泽威,等.不同生物质纤维及其添加量对PBAT复合材料结构与性能的影响[J].包装工程,2022,43(32):25-33.
[17] 陈世桓,周桥芳,王先菊,等.纤维粒径对荔枝修枝木/高密度聚乙烯复合材料性能的影响[J].木材科学与技术,2023,37(3):35-43.
[18] Li J,Song Z,Li D,et al.Cotton cellulose nanofiber-reinforced high density polyethylene composites prepared with two different pretreatment methods[J].Industrial Crops and Products,2014,59:318-328.
[19] 周亚巍,宁莉萍,李贤伟,等.铝矾土改性竹粉/HDPE复合材料性能[J].复合材料学报,2015,32(4):977-982.
[20] 彭开元.油茶果壳基木质复合材料的制备与性能研究[D].长沙:中南林业科技大学,2016.
[21] Pradhan P,Satapathy A.Physico-mechanical characterization and thermal property evaluation of polyester composites filled with walnut shell powder[J].Polymers and Polymer Composites,2022,30:1-12.
[22] 陈超,杨梦梅,孙康,等.木质素与纤维素热解碳结构特性对其高温石墨化过程的影响机制[J].林业工程学报,2022,7(6):124-131.
基金资助
江西省林业科学院基础研究与人才科研专项——青年人才培养项目(2022511501);国家自然科学基金(31670555)
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