腰果酚基增塑剂对乙酰木粉复合材料的性能影响

doi:10.3969/j.issn.0253-2417.2014.06.016

林产化学与工业 ›› 2014, Vol. 34 ›› Issue (6): 100-104.doi: 10.3969/j.issn.0253-2417.2014.06.016

腰果酚基增塑剂对乙酰木粉复合材料的性能影响

谢振华¹, 金立维^1,2

1. 中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042;
2. 中国林业科学研究院林业新技术研究所, 北京 100091

收稿日期:2014-01-23 出版日期:2014-12-25 发布日期:2015-08-18
通讯作者: 金立维,副研究员,博士,硕士生硕导,主要从事生物质材料与水性胶黏剂的研究;E-mail:liwei-jin@163.com. E-mail:liwei-jin@163.com
作者简介:谢振华(1989-),男,江西赣州人,硕士生,主要从事生物质材料的研究
基金资助:
"十二五"国家科技支撑计划资助(2012BAD32B03)

Effect of Cardanol Based Plasticizers on Properties of Acetylated Wood Flour Composites

XIE Zhen-hua XIE Zhen-hua¹, JIN Li-wei^1,2

1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.of Forest Chemical Engineering, SFA; Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China

Received:2014-01-23 Online:2014-12-25 Published:2015-08-18

摘要/Abstract

摘要： 利用熔融挤出-注塑的方法制得乙酰化木粉(AWF)/低密度聚乙烯(LDPE)复合材料,在制备过程中分别将腰果酚基乙酸酯(CA)和环氧腰果酚基乙酸酯(ECA)增塑剂添加到复合材料中.对复合材料的力学性能、吸水率、表面能、增塑剂热迁移和热机械性能(TMA)进行了研究.结果表明:随着增塑剂含量的增加,材料的力学性能不断下降,但整体而言由CA制备的复合材料的力学强度相比更高;吸水率测试显示材料的疏水性能在增塑剂质量分数为5%时差别不大,但添加量为15%时由CA制备的材料具有更好的疏水性;接触角测试也验证了其界面极性最小.在85 ℃及100 min内ECA的热迁移常数(4.35×10^-4)相比CA的(5.48×10^-4)要小,同时随着时间延长至3 700 min时ECA在材料中的保留更好.TMA结果显示随着温度的增大材料的膨胀加剧,加入15%的ECA的复合材料在高温段的线膨胀系数(3 758 μm/(m·℃))要明显高于对应的加入CA的材料的线膨胀系数(3 182 μm/(m·℃)).

关键词: 腰果酚基乙酸酯, 环氧腰果酚基乙酸酯, 乙酰化木粉, 复合材料, 增塑剂

Abstract: Composites of acetylated wood flour (AWF)/low-density polyethylene (LDPE) were prepared by extrusion-injection molding process, and cardanol acetate (CA) and epoxy cardanol acetate (ECA) were added respectively. Properties such as tensile strength and hydrophobic as well as surface energy, migration of plasticizers and thermal mechanical properties (TMA) were studied. The results showed that the tensile strength of composites decreased with the increasing content of plasticizers, but tensile strength of all composites with CA were higher than that of composites with ECA. Composites with 5% plasticizers showed similar hydrophobicity, but composites with 15% CA was more hydrophobic, and contact angle test showed the similar results. The migration test of plasticizers revealed ECA had lower transfer constant (4.35×10^-4) than that of CA (5.48×10^-4) at 85 ℃ in 100 min, and ECA retained more in the composites after 3 700 min. The result of TMA exhibited the inflation of composites intensified with increasing temperature, and composites with 15% ECA showed higher coefficient of linear expansion (3 758 μm/(m·℃)) than that of composites with CA (3 182 μm/(m·℃)).

Key words: cardanol acetate, epoxy cardanol acetate, acetylated wood flour, composites, plasticizer

中图分类号:

TQ35
R914.5

谢振华, 金立维. 腰果酚基增塑剂对乙酰木粉复合材料的性能影响[J]. 林产化学与工业, 2014, 34(6): 100-104.

XIE Zhen-hua XIE Zhen-hua, JIN Li-wei. Effect of Cardanol Based Plasticizers on Properties of Acetylated Wood Flour Composites[J]. Chemistry and Industry of Forest Products, 2014, 34(6): 100-104.

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腰果酚基增塑剂对乙酰木粉复合材料的性能影响

Effect of Cardanol Based Plasticizers on Properties of Acetylated Wood Flour Composites

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