PMID- 31771097 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 11 IP - 12 DP - 2019 Nov 22 TI - Improvement of Rice Husk/HDPE Bio-Composites Interfacial properties by Silane Coupling Agent and Compatibilizer Complementary Modification. LID - 10.3390/polym11121928 [doi] LID - 1928 AB - Composites using agricultural and forestry residues as raw materials with potentially high-performance, multifunctional and biodegradable ecological advantages, are viewed as very promising for new-generation lightweight and low-cost bio-based sustainable building materials. At present, the research on wood-plastic composite materials is relatively mature. However, it is still a challenge to effectively use other biomass and improve the interface of the high-polymer compound system. Herein, we proposed a simple and effective method to enhance the interfacial adhesion properties of rice husk fibre and High Density Polyethylene (HDPE) composites by the silane coupling agent KH-550 and compatibilizer Maleic anhydride grafted polyethylene (MAPE) with complementary modification. It was found that the coupling agent KH-550 cross-linked with the hydroxyl group on the husk fibre surface and solidified with the high polymer by -NH-, -C=O- functional group generation. Compatibilizer MAPE strengthened the two phases by covalently bonding with an ester linkage and lowered the roughness of the cross-section of the composites. Meanwhile the modification enhanced the dispersibility, and mechanical properties of the husk-high polymer compound system, the bending and flexural strength were improved by 11.5% and 28.9% with KH-550, and MAPE added, respectively. The flexural strength of the composites increased by 40.7% after complementary modification. Furthermore, the complementary modification treatment reduced the hydrophilic hydroxyl groups and increased the molecular chain to improve the water-resistance, elastic modulus and toughness of the composite. This study prepared a bio-composite, which is expected to expand the use of agricultural and forestry residues as an extension of wood-plastic composites. FAU - Sun, Jingmeng AU - Sun J AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. FAU - Pang, Yao AU - Pang Y AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. FAU - Yang, Yingni AU - Yang Y AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. FAU - Zhao, Junqi AU - Zhao J AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. FAU - Xia, Rongqi AU - Xia R AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. FAU - Li, Yanchen AU - Li Y AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. FAU - Liu, Yi AU - Liu Y AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. AD - Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China. AD - MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China. FAU - Guo, Hongwu AU - Guo H AD - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China. AD - Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China. AD - MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China. LA - eng GR - 2018ZY12/Fundamental Research Funds for the Central Universities/ PT - Journal Article DEP - 20191122 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC6960626 OTO - NOTNLM OT - bio-composite OT - high-density polyethylene OT - interface modification OT - rice husk COIS- The authors declare no conflicts of interest. EDAT- 2019/11/28 06:00 MHDA- 2019/11/28 06:01 PMCR- 2019/11/22 CRDT- 2019/11/28 06:00 PHST- 2019/11/02 00:00 [received] PHST- 2019/11/18 00:00 [revised] PHST- 2019/11/18 00:00 [accepted] PHST- 2019/11/28 06:00 [entrez] PHST- 2019/11/28 06:00 [pubmed] PHST- 2019/11/28 06:01 [medline] PHST- 2019/11/22 00:00 [pmc-release] AID - polym11121928 [pii] AID - polymers-11-01928 [pii] AID - 10.3390/polym11121928 [doi] PST - epublish SO - Polymers (Basel). 2019 Nov 22;11(12):1928. doi: 10.3390/polym11121928.