Polyphenylene sulfide is a new functional engineering plastic.

PLA (Polylactic Acid) PLA, also known as polylactic acid, is a biodegradable and environmentally friendly polymer. Its production process is pollution-free, and the material can naturally degrade, making it one of the most representative green plastics. The structure of PLA has a significant impact on its heat resistance, toughness, mechanical strength, degradability, and biocompatibility. Among these, heat resistance is a key limitation. PLA molecular chains contain only one methylene group, forming a spiral structure with low chain mobility. As a result, PLA exhibits slow crystallization during injection molding, leading to low crystallinity and poor heat resistance. Additionally, during thermal processing, ester bonds may break, generating terminal carboxyl groups that accelerate thermal degradation through autocatalysis. LGF Reinforced PLA Long fiber reinforcement significantly enhances the performance of PLA. Fibers act as a structural skeleton within the polymer matrix, restricting molecular chain movement under heat and thereby improving thermal resistance. Various fibers can be used for PLA reinforcement, including: Natural plant fibers (sisal, flax, bamboo, coconut fiber, wood fiber) Animal fibers (silk) Mineral fibers (basalt fiber) Synthetic fibers (carbon fiber, glass fiber) Among these, carbon fiber and glass fiber are widely applied due to their high strength and modulus, while natural fibers are gaining attention for their sustainability and biodegradability. Studies show that reinforced PLA composites can achieve a Vicat softening temperature exceeding 140°C, significantly improving thermal performance compared to pure PLA. Comparison with Short Fiber (SGF) Compared to short fiber reinforced materials, long glass fiber (LGF) composites offer superior mechanical performance: 1–3 times higher toughness 50–100% increase in tensile strength and stiffness Better suitability for large structural parts Injection Molding Laboratory Warehouse Certifications Xiamen LFT Composite Plastic Co., Ltd. Xiamen LFT Composite Plastic Co., Ltd. specializes in long fiber reinforced thermoplastics (LFT & LFRT), including Long Glass Fiber (LGF) and Long Carbon Fiber (LCF) materials. Our materials are suitable for injection molding, extrusion (LFT-G), and direct molding (LFT-D). Fiber lengths can be customized from 5–25 mm according to customer requirements. Our products are manufactured using advanced continuous fiber impregnation technology and are certified under ISO9001 and IATF16949 systems, with multiple patents and registered trademarks.

PP (Polypropylene) Reinforced with Long Glass Fiber Polypropylene (PP) is one of the most widely used general-purpose thermoplastics, known for its low cost, excellent chemical resistance, and good processability. However, its inherent limitations—such as low strength, low heat resistance, poor stiffness, and weak low-temperature impact performance—restrict its use in structural applications. By introducing reinforcing materials such as glass fibers, the mechanical properties of PP can be significantly enhanced. When the fiber length exceeds the critical reinforcement size, the material performance improves dramatically. Long Glass Fiber Reinforced PP (LFT-PP) is a high-performance thermoplastic composite, typically supplied in pellet form with a length of 12–25 mm and a diameter of about 3 mm. The glass fibers inside maintain nearly the same length as the pellets, ensuring superior load transfer and mechanical strength. Fiber content can range from 20% to 70%, and colors can be customized according to customer requirements. Advantages of PP-LGF Long fiber length significantly improves mechanical strength and stiffness High impact resistance, suitable for automotive and furniture applications Excellent creep resistance and dimensional stability for precision parts Superior fatigue resistance under long-term loading Stable performance in high temperature and humid environments Reduced fiber breakage during molding due to optimized processing flow LGF vs SGF Compared with short glass fiber (SGF) reinforced materials, long glass fiber (LGF) composites provide: Higher mechanical strength and toughness Better load-bearing capacity Improved fatigue and creep resistance More stable performance in structural applications Applications Automotive Industry: front-end modules, door modules, gearshift systems, electronic pedals, instrument panel frames, cooling fan systems, battery trays, bumper brackets, underbody shields, sunroof frames, etc. Home Appliance Industry: washing machine drums, structural brackets, air conditioner fan systems, replacing metal or short glass fiber reinforced materials. Electrical & Electronics: connectors, relay bases, coil frames, microwave transformer housings, solenoid valve components, scanner parts, etc. Other Applications: power tools, pump housings, bicycle frames, ski components, helmet structures, safety footwear parts, replacing PA, PPO and metal materials. Processing Certification About Us Xiamen LFT Composite Plastic Co., Ltd. was established in 2009 and is a global supplier specializing in long fiber reinforced thermoplastic materials. We integrate R&D, production, and global marketing. Our products have passed ISO 9001 and IATF 16949 certifications and are widely used in automotive, aerospace, military, new energy, medical devices, wind energy, sports equipment, and industrial applications.

Throughout the plastics industry, PEEK is widely recognized as one of the leading high-performance polymers (HPP). While metals have traditionally dominated industries such as automotive, aerospace, oil & gas, and medical devices, PEEK materials are rapidly transforming the market with lightweight and high-strength alternatives. What is PEEK Material? PEEK (Polyether Ether Ketone) belongs to the family of aromatic polyketone polymers, also known as Polyaryletherketone (PAEK). It is one of the world's most advanced thermoplastic engineering materials. Research on PEEK began in the 1960s, and the material was first commercialized by Imperial Chemical Industries (ICI) in 1981. Chemically, PEEK is a semi-crystalline linear polymer that combines excellent mechanical strength, high heat resistance, chemical resistance, wear resistance, and dimensional stability. Compared with traditional metals, PEEK materials are lightweight, corrosion-resistant, easy to process, and offer exceptional specific strength (strength-to-weight ratio). Datasheet for Reference Key Advantages of PEEK High Heat Resistance Continuous operating temperature up to 260°C (500°F), suitable for extreme thermal environments. Chemical Resistance Resistant to fuels, oils, hydraulic fluids, solvents, and harsh chemical environments. Mechanical Strength Excellent stiffness, fatigue resistance, and creep resistance over long service life. Flame Resistance High ignition temperature with low smoke emission, widely used in aerospace applications. Recyclable & Reprocessable Can be repeatedly melted and processed with minimal property loss. Electrical Stability Excellent electrical insulation properties, with optional conductive modifications available. PEEK is also non-hygroscopic, radiation resistant, and transparent under X-ray exposure, making it ideal for medical and electronic applications. As a thermoplastic engineering material, PEEK can be processed by injection molding, extrusion, and compression molding using conventional equipment. Today, PEEK is increasingly replacing traditional metals and alloys in demanding applications where lightweight structures, durability, and long-term reliability are required. Applications PEEK materials are widely used in: Automotive components Aerospace structures Oil & gas equipment Medical devices Electrical and electronic applications Industrial machinery parts Contact us for additional application solutions and customized material recommendations. Production Processing Injection molding is one of the most common methods for manufacturing PEEK plastic components. During injection molding, molten PEEK material is injected into a mold cavity under high pressure. After cooling and solidification, the finished part is ejected from the mold. This process enables the production of complex, thin-wall, high-precision components with excellent surface finish and dimensional stability. Certifications ISO9001 / IATF16949 Quality Management Certification National Laboratory Accreditation Certificate Modified Plastics Innovation Enterprise REACH & ROHS Heavy Metal Testing Xiamen LFT-G Factory Production Capacity: 500 tons/month Packing: 20kg/bag About Us Xiamen LFT Composite Plastic Co., Ltd. was established in 2009 and specializes in long fiber reinforced thermoplastic materials. The company integrates R&D, production, and global sales of advanced engineering plastics, including long glass fiber and long carbon fiber reinforced composites. Our products are widely used in automotive, aerospace, new energy, industrial equipment, medical devices, and sports applications. ```

Polyphenylene sulfide is a new functional engineering plastic.