Recently, injection molding process has generated growing interest, exhibiting great potential to easily fabricate unique polymeric materials for industrial applications. To increase the sustainability of the process, determinative parameters and their effects should be examined. This study focuses on the effect of melt temperature on as-injection molded product, thereby high-density polyethylene samples were fabricated by performing three different melt temperatures (180, 190, and 200 °C), and subsequently, their mechanical, thermal, and morphological and surface quality properties were examined. The results showed that higher melting temperature lowered crystallization rate and decreased the strength of tensile and bending; however, it increased crystal lamellar thickness and impact strength. Moreover, the type of fibrillation changed with the temperature. Moreover, defects formation increased with the temperature. For further application, the effect of the temperature on surface quality was discussed. This work will provide a guide for manufacturing injection-molded products at desired properties by arranging melt temperature.

近来，注模工艺引起了越来越多的兴趣，展现出容易制造用于工业应用的独特聚合物材料的巨大潜力。为了提高过程的可持续性，应检查确定性参数及其影响。这项研究的重点是熔体温度对注塑成型产品的影响，因此，通过执行三种不同的熔体温度（180、190和200°C），然后分别进行机械，热学和热力学测试，可制得高密度聚乙烯样品。检验了形态和表面质量特性。结果表明，较高的熔融温度降低了结晶速率，降低了抗拉强度和抗弯强度。但是，它增加了晶体层状厚度和冲击强度。而且，原纤化的类型随温度而变化。而且，缺陷形成随温度增加。为了进一步应用，讨论了温度对表面质量的影响。这项工作将为通过安排熔体温度来制造具有所需性能的注塑产品提供指导。