Unlock the secrets to selecting the perfect plastic materials for your projects with our comprehensive guide. Delve into essential factors such as durability, cost-effectiveness, and environmental impact. Make informed choices that enhance efficiency and sustainability. Discover how to optimize your material selection today and elevate your projects to new heights!
Shrinkage rate during molding:
The dimensional accuracy of plastics with low shrinkage rates (PS, ABS, PC) is relatively easy to achieve, while plastics with high shrinkage rates (PP, PE, POM) are more difficult to achieve dimensional accuracy (the tolerance of the mold is about 1/6 of the product tolerance).
Flow viscosity size:
Plastic with high flow viscosity (ABS) is less likely for sol to flow into the gaps, while plastic with low flow viscosity (PA, POM) is easier for sol to flow into even with small gaps.
High or low molding temperature:
Plastics with lower molding temperatures (PS) are easier to form and have shorter molding cycles, while plastics with higher molding temperatures (PC) are more difficult to form and have longer molding cycles.
Is it prone to spoilage or decomposition:
Plastics that are not easily deteriorated or decomposed during molding (PS, PE, PP) are not prone to quality instability during mass production, while plastics that are prone to deterioration or decomposition during molding cannot be mass-produced without strict requirements for molding conditions (molds can precisely control molding conditions), which is particularly serious when using hot runners.