Long glass fiber reinforced polypropylene material refers to a modified polypropylene composite material containing glass fibers with a length of 10 to 25 mm. It is formed into a three-dimensional structure through injection molding and other processes. It has higher comprehensive properties than ordinary glass fiber reinforced polypropylene and is therefore widely used. Used in various fields.
Characteristics of long glass fiber reinforced polypropylene material
Generally speaking, the tensile strength of polypropylene material is between 20M ~ 30MPa, the bending strength is between 25M ~ 50MPa, and the bending modulus is between 800M ~ 1500MPa. If you want to improve the strength properties of polypropylene, you must reinforce it with glass fibers. The mechanical properties of polypropylene reinforced by glass fibers can be increased by several or even several times. The tensile strength can reach 65MPa ~ 90MPa, the flexural strength can reach 70MPa ~ 120MPa, and the flexural modulus can reach 3000MPa ~ 4500MPa. Such mechanical strength can be completely comparable with ABS and reinforced ABS products.
Glass fiber reinforced polypropylene is more heat resistant. Generally, the heat resistance temperature of ABS and reinforced ABS is between 80 ° C and 98 ° C, while the heat resistance temperature of glass fiber reinforced polypropylene materials can reach 135 ° C to 145 ° C. It can be used to make axial fans and cross-flow fans in refrigerators, air conditioners and other refrigeration machines, and its cost is much lower than ABS enhanced products. It can also be used to manufacture the inner bucket, pulsator, and pulley of high-speed washing machines to meet its high requirements for mechanical properties. It is also used in places such as rice cooker bases and handles, and electronic microwave ovens that require high temperature resistance.
The high-temperature fatigue strength of long glass fiber reinforced polypropylene at 120 ° C is twice that of ordinary glass fiber reinforced polypropylene, and even 10% higher than glass fiber reinforced nylon, which is famous for heat resistance. Therefore, this material has a structural component. Required durability and reliability. Long glass fiber reinforced polypropylene has better warpage resistance than short glass fiber reinforced polypropylene.
Application of long glass fiber reinforced polypropylene material
Long glass fiber reinforced polypropylene materials are widely used in automotive, machinery, electronic appliances, home appliances, sports and other fields.
Automotive: instrument panel, door assembly, front-end components, body door module, roof panel, seat frame, handle lever, battery bracket, tire frame, cooling fan and frame, etc.
Machinery field: pump housing, pump body and assembly, electrical tool housing and handle, mechanical drive link, bearing, locomotive guide, compressor rotor, coil shaft, etc.
Electronic and electrical field: printer facsimile housing, fan blade, low-voltage electrical housing and inner bracket, electrical switch housing, computer outer and inner bracket housing, TV back cover, washing machine inner barrel, iron handle, etc.
Household appliances: washing machine drum, impeller, washing machine triangle bracket, air conditioner guide fan.
Sports equipment: bicycle skeletons, skis, ground motorcycle pedals, civilian safety toe caps, safety helmets, etc.