PMID- 30961101 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231006 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 10 IP - 10 DP - 2018 Oct 22 TI - Effects of Extractives on Dimensional Stability, Dynamic Mechanical Properties, Creep, and Stress Relaxation of Rice Straw/High-Density Polyethylene Composites. LID - 10.3390/polym10101176 [doi] LID - 1176 AB - The removal of rice straw extractives increases the interphase adhesion between rice straw and the high-density polyethylene (HDPE) matrix, while eradicating the inner defects of rice straw/HDPE composites. This study investigated the effect of rice straw extractives removal on the dimensional stability (water uptake and thermal expansion), dynamic mechanical properties, creep, and stress relaxation of rice straw/HDPE composites. Cold water (CW), hot water (HW), and 1% alkaline solution (AL) extraction methods were utilized to remove rice straw extractives. Extracted and unextracted rice straws were mixed with HDPE, maleated polyethylene (MAPE), and Polyethylene wax to prepare composites via extrusion. Removal of rice straw extractives significantly improved the dimensional stability, dynamic mechanical properties, and creep and stress relaxation of rice straw/HDPE composites, with the exception of the thickness swelling of the AL/HDPE and the thermal expansion of the rice straw/HDPE composites. HW/HDPE exhibited the best comprehensive performance. FAU - Wang, Huanbo AU - Wang H AD - Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China. wanghuanbov@outlook.com. FAU - Lin, Fazhi AU - Lin F AD - Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China. lfzxsyx@163.com. FAU - Qiu, Pingping AU - Qiu P AD - Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China. pingpingqiu95@163.com. FAU - Liu, Tian AU - Liu T AD - Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China. granthill63@163.com. LA - eng GR - 31500482/National Natural Science Foundation of China/ GR - 000/41113102/Special Project for Double First-Class --Cultivation of Innovative Talents/ GR - 2572018BB02/Fundamental Research Funds of Central Universities/ PT - Journal Article DEP - 20181022 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC6403664 OTO - NOTNLM OT - composites OT - creep OT - dimensional stability OT - dynamic mechanical properties OT - extractives OT - stress relaxation COIS- The authors declare no conflict of interest. EDAT- 2019/04/10 06:00 MHDA- 2019/04/10 06:01 PMCR- 2018/10/22 CRDT- 2019/04/10 06:00 PHST- 2018/09/21 00:00 [received] PHST- 2018/10/19 00:00 [revised] PHST- 2018/10/19 00:00 [accepted] PHST- 2019/04/10 06:00 [entrez] PHST- 2019/04/10 06:00 [pubmed] PHST- 2019/04/10 06:01 [medline] PHST- 2018/10/22 00:00 [pmc-release] AID - polym10101176 [pii] AID - polymers-10-01176 [pii] AID - 10.3390/polym10101176 [doi] PST - epublish SO - Polymers (Basel). 2018 Oct 22;10(10):1176. doi: 10.3390/polym10101176.