| LI Ya-li,FU Xin,GAO Jin-hong,LIU Juan.Effect of Lignocellulose Surface Characteristics on the Mechanical Properties of Wood-plastic Composites[J],43(5):33-36 |
| Effect of Lignocellulose Surface Characteristics on the Mechanical Properties of Wood-plastic Composites |
| Received:April 16, 2014 Revised:June 19, 2014 |
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| DOI： |
| KeyWord:corn stover fibers surface contact angles surface tension composite material |
| Author | Institution |
| LI Ya-li |
Collage of Chemistry and Life Sciences, Weinan Normal University, Weinan , China |
| FU Xin |
Collage of Chemistry and Life Sciences, Weinan Normal University, Weinan , China |
| GAO Jin-hong |
Collage of Chemistry and Life Sciences, Weinan Normal University, Weinan , China |
| LIU Juan |
Collage of Chemistry and Life Sciences, Weinan Normal University, Weinan , China |
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| Abstract: |
| Objective To improve the interfacial compatibility of lignocellulose with thermoplastic plastics, and increase the mechanical properties of wood-plastic composites. Methods The contact angles of three probe liquids against unmodified and modified corn stover fibers were tested by capillary rise method, and the surface tension and its components of unmodified and modified corn stover fibers were calculated based on the method of Owens-wendt-Kaelble. Results The results showed that the surface tension of the unmodified corn stover fibers was 28. 88 mN/m and its polar component was 22. 20 mN/m, while the surface tension of the modified corn stover fibers was 35. 69 mN/m and its polar component was 3. 51 mN/m. Conclusion Modified corn stover fibers had better interfacial compatibility with thermoplastics, which was also confirmed by the better mechanical properties of wood-plastic composites. |
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