Industry News

Polyphthalamide (PPA, high-temperature nylon) is a semi aromatic high-performance engineering plastic that has become a core material in the fields of new energy vehicles, 5G communications, industrial electronics, aerospace, etc.

The phenomenon of white powder, oily substance or crystal grain "precipitation" on the surface of flame-retardant polypropylene (PP) products during storage or use is a common problem that has long plagued the industry.

Choosing the halogen-free flame retardant route for PP is essentially a systematic engineering process that seeks the optimal balance between flame retardant efficiency, comprehensive performance, processing feasibility, cost, and environmental protection. There is no universal best route, only the most suitable route based on application scenarios.

Halogen free flame retardant polypropylene (PP) has become a core environmentally friendly material in the fields of automobiles, new energy, electronics and electrical, rail transit, cable sheaths, etc., thanks to its advantages of environmental protection, low smoke and low toxicity, easy processing, and controllable cost.

Polypropylene (PP) has become one of the most widely used general-purpose plastics for flame retardant modification due to its excellent comprehensive properties and cost advantages. However, whether adding halogen based, phosphorus nitrogen based, or inorganic hydroxide (such as magnesium hydroxide, aluminum hydroxide) flame retardants, a common and challenging problem arises: significant deterioration of key mechanical properties such as tensile strength, impact toughness, and elongation at break of the material.

As a widely used halogen-free flame retardant, magnesium hydroxide (MH) not only endows polymers with flame retardant properties, but its addition amount is the core variable that determines the final mechanical properties of composite materials. This article aims to delve into the nonlinear relationship between the two, reveal their underlying mechanisms, and provide professional solutions for balancing flame retardant requirements and mechanical properties.