PMID- 36297961 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221030 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 14 IP - 20 DP - 2022 Oct 17 TI - Fabric Insert Injection Molding for the Preparation of Ultra-High Molecular Weight Polyethylene/High-Density Polyethylene Two-Component Self-Reinforced Composites. LID - 10.3390/polym14204384 [doi] LID - 4384 AB - The fabric insert injection molding approach can be applied to produce easily recyclable self-reinforced polymer composites (SrCs) whose reinforcement and matrix are from the same polymer. However, the mechanical properties of the SrCs are usually limited due to the poor impregnation of the inserted fabric. In this work, the ultra-high molecular weight polyethylene (UHMWPE) fabrics were used as the insert, and the high-density polyethylene (HDPE) melt was injected to fill the mold cavity and impregnate the fabrics. The UHMWPE/HDPE two-component SrCs were prepared. The large difference of melting temperatures between UHMWPE and HDPE can establish a wide processing temperature window, and thus the impregnation of the fabric can be improved by increasing temperature. The tensile strength and modulus of the UHMWPE/HDPE SrCs were up to 148 and 1132 MPa, respectively. The peel strength could be up to 35.2 N/cm. The influences of four main injection molding parameters, including the injection temperature, injection pressure/packing pressure, injection velocity, and packing time, were investigated. The temperature, pressure, viscosity, and density of the matrix in the mold cavity were calculated by the numerical simulation to indicate the impregnation process during the fabric insert injection molding process. FAU - Wang, Jian AU - Wang J AUID- ORCID: 0000-0001-7187-1629 AD - State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China. AD - College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China. FAU - Wang, Da AU - Wang D AD - State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China. FAU - Mao, Qianchao AU - Mao Q AD - School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China. FAU - Chen, Jinnan AU - Chen J AD - School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China. LA - eng GR - 51873021/National Natural Science Foundation of China/ GR - buctrc202005/Fundamental Research Funds for the Central Universities/ PT - Journal Article DEP - 20221017 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC9609700 OTO - NOTNLM OT - injection molding OT - mechanical properties OT - polyethylene OT - processing parameter OT - self-reinforced composite COIS- The authors declare no conflict of interest. EDAT- 2022/10/28 06:00 MHDA- 2022/10/28 06:01 PMCR- 2022/10/17 CRDT- 2022/10/27 01:54 PHST- 2022/09/15 00:00 [received] PHST- 2022/10/04 00:00 [revised] PHST- 2022/10/11 00:00 [accepted] PHST- 2022/10/27 01:54 [entrez] PHST- 2022/10/28 06:00 [pubmed] PHST- 2022/10/28 06:01 [medline] PHST- 2022/10/17 00:00 [pmc-release] AID - polym14204384 [pii] AID - polymers-14-04384 [pii] AID - 10.3390/polym14204384 [doi] PST - epublish SO - Polymers (Basel). 2022 Oct 17;14(20):4384. doi: 10.3390/polym14204384.