LCP (Liquid Crystal Polymer) pure resin is a high-performance thermoplastic engineering plastic based on aromatic polyester liquid crystal polymers. In the molten state, molecular chains align highly along the flow direction, forming a unique liquid crystalline structure. Pure resin products are classified into Type I (high heat-resistant), Type II (general-purpose), and Type III (low melting point) categories based on molecular structure and thermal properties, serving as the foundational material for all LCP modified products.
Polyphenylene Oxide (PPO), chemically named poly(2,6-dimethyl-1,4-phenylene oxide). Pure PPO resin appears as white or light-yellow powder/granules, non-toxic and amorphous, and belongs to the five major general-purpose engineering plastics worldwide.
Modified Polyphenylene Oxide (m-PPO or MPPO) refers to engineering plastic alloys/composite materials produced by blending pure PPO resin with polymers such as polystyrene (HIPS), polyamide (PA), polyphenylene sulfide (PPS), or by reinforcing with glass fiber, carbon fiber, mineral fillers, etc. Modified PPO retains the excellent heat resistance, electrical insulation, and dimensional stability of PPO while significantly improving processing flowability, and can be customized for mechanical strength, chemical resistance, and flame retardancy grades according to application requirements.
Halogen-free flame retardant PPSU is a composite material modified by incorporating halogen-free flame retardant systems (such as phosphorus-based, nitrogen-based, or inorganic hydroxides) into the PPSU resin. PPSU inherently possesses flame retardancy (UL94 V-0), but certain special applications (such as rail transit, aviation) require higher flame retardant ratings or lower smoke density and toxicity indices. This product achieves a higher level of flame retardant safety while maintaining PPSU's excellent heat resistance and mechanical properties, and is halogen-free, complying with environmental regulations.
Glass fiber reinforced PPSU is a composite material modified by incorporating a certain proportion (typically 10%~30%) of short glass fibers into pure PPSU resin. The addition of glass fibers significantly enhances tensile strength, flexural modulus, and heat deflection temperature, while effectively reducing molding shrinkage and improving dimensional stability. This material is particularly suited for engineering applications demanding high structural strength and elevated-temperature mechanical performance.
Pure Resin Transparent PPSU (Amber)
Pure resin transparent PPSU is the unmodified polyphenylsulfone base resin without any fillers or reinforcing agents, exhibiting the characteristic amber transparent appearance. This grade retains the inherent high heat resistance, excellent hydrolysis resistance, and outstanding impact strength of PPSU, making it the most widely used and highest-volume grade in the PPSU product family. Pure resin PPSU can be processed via conventional thermoplastic methods such as injection molding and extrusion, suitable for applications requiring high material purity and transparency.
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