生物乙醇衍生木质素在改善热固性生物复合材料物理机械性能方面的应用。
Application of bioethanol derived lignin for improving physico-mechanical properties of thermoset biocomposites.
作者信息
Bajwa Dilpreet S, Wang Xinnan, Sitz Evan, Loll Tyler, Bhattacharjee Sujal
机构信息
Department of Mechanical Engineering, Dolve Hall 111, North Dakota State University, Fargo, ND, USA.
Department of Mechanical Engineering, Dolve Hall 111, North Dakota State University, Fargo, ND, USA.
出版信息
Int J Biol Macromol. 2016 Aug;89:265-72. doi: 10.1016/j.ijbiomac.2016.04.077. Epub 2016 Apr 27.
Lignin is the most abundant of renewable polymers next to cellulose with a global annual production of 70million tons, largely produced from pulping and second generation biofuel industries. Low value of industrial lignin makes it an attractive biomaterial for wide range of applications. The study investigated the application of wheat straw and corn stover based lignin derived from ethanol production for use in thermoset biocomposites. The biocomposite matrix constituted a two component low viscosity Araldite(®)LY 8601/Aradur(®) 8602 epoxy resin system and the lignin content varied from 0 to 25% by weight fraction. The analysis of the physical and mechanical properties of the biocomposites show bioethanol derived lignin can improve selective properties such as impact strength, and thermal stability without compromising the modulus and strength attributes.
木质素是仅次于纤维素的最丰富的可再生聚合物，全球年产量达7000万吨，主要来自制浆和第二代生物燃料行业。工业木质素的低价值使其成为一种具有广泛应用前景的有吸引力的生物材料。该研究调查了源自乙醇生产的小麦秸秆和玉米秸秆木质素在热固性生物复合材料中的应用。生物复合材料基体由双组分低粘度Araldite(®)LY 8601/Aradur(®) 8602环氧树脂体系构成，木质素含量按重量分数从0%到25%不等。对生物复合材料物理和力学性能的分析表明，源自生物乙醇的木质素可以改善诸如冲击强度和热稳定性等选择性性能，而不会损害模量和强度属性。
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