As one of the general plastic materials, PP (polypropylene) has a large output and a low price. At the same time, it has excellent comprehensive properties, good chemical stability, and good molding and processing properties. However, the shortcomings of PP, such as low strength, low use temperature, low hardness, and poor low-temperature impact resistance, severely limit its application fields. Therefore, engineers add glass fiber, calcium carbonate and other reinforcing materials to PP, and when the length of glass fiber exceeds the critical size, the mechanical properties are greatly improved!
In this context, LFT-PP (Long Fiber Reinforced PP) came into being. At present, LFT-PP has been widely used in automobiles, power tools, home appliances, and water treatment components. However, various fields have different requirements for LFT-PP. Let’s briefly introduce the following 8 types of LFT-PP:
1. LFT-PP—General Grade
This type of LFT-PP reinforced material is mainly long glass fiber material without other additives. The content of long glass fiber is generally 20-60%, and the heat distortion temperature is above 147℃ (the higher the content of long glass fiber, the higher the heat distortion temperature and the higher the low temperature impact strength).
Main features: chemical coupling, high strength, reference chopped length 8mm, 11mm, 20mm;
Application products: auto parts, washing machine parts, water pump parts, water treatment parts, household appliances, etc.
2. LFT-PP—heat-resistant grade
The content of this type of LFT-PP long glass fiber is generally 20-50%, and the heat distortion temperature is above 152℃ (the higher the content of long glass fiber, the higher the heat distortion temperature).
Main features: high strength, long-term heat aging resistance (150℃×1000h, 140℃×1000h), reference chopped length 8mm, 11mm, 20mm;
Application products: automotive front and rear modules, battery brackets, engine covers, water tank frames, sunroof frames, etc.
3. LFT-PP—UV resistance
The long glass fiber content of UV (ultraviolet) resistant LFT-PP is generally 20-50%, and the heat distortion temperature is above 152°C.
Main features: high strength, UV resistance, long-term heat aging resistance, good product appearance, reference chopped length 8mm, 11mm, 20mm;
Application products: car (truck) door handles, rearview mirror systems, battery shells, truck (SUV) outer pedals, etc.
4. LFT-PP—Heat-resistant water grade
The long-term heat-resistant water LFT-PP long glass fiber content is generally 15% and 20%, and the heat distortion temperature is above 146°C.
Main features: high strength, good heat-resistant water/detergent performance, long-term heat-resistant oxygen aging performance, reference chopped length 8mm, 10mm, 12mm;
Application products: washing machine parts, dryer parts, etc.
5. LFT-PP—low odor, low TVOC
TVOC is the abbreviation of Total Volatile Organic Compounds. Under more and more stringent requirements for car interior air management, LFT-PP with low odor and low TVOC has great advantages in car interiors.
Main features: high strength, low odor, low TVOC, reference chopped length 8mm, 10mm, 12mm;
Application products: automobile instrument panel (IP) frame, inner door panel, center control panel bracket, glove box cover, air bag bracket, rear tail panel, etc.
Six, LFT-PP-ultra-low warpage
PP is easy to warp after adding glass fiber. When injecting products with high size requirements, you can consider using ultra-low warpage LFT-PP.
Main features: ultra-low warpage, high strength, reference chopped length 8mm, 10mm, 20mm;
Application products: automotive interior door panels, glove box covers, air-conditioning fans and other products that require dimensional stability.
Seven, LFT-PP—halogen-free flame retardant
The long glass fiber content of halogen-free flame-retardant LFT-PP generally has 20% and 30%, and is mainly used for products that are in contact with electricity and open flames.
Main features: high strength, halogen-free flame retardant, high GWIT, high CTI, reference chopped length 8mm, 10mm, 12mm;
Application products: wire shells, coil frames, electrical sockets for building materials, seats in public places, etc.
8. LFT-PP—Super tough
The content of ultra-tough LFT-PP long glass fiber is generally 20% and 30%, which is mainly designed for products that vibrate and are susceptible to stress shock.
Main features: ultra-high impact strength (under normal temperature and low humidity), reference chopped length 8mm, 10mm, 12mm;
Application products: power tools, pump housings, pipe fittings, etc.
Hebei Yuniu Fiberglass Manufacturing Company Limited is a fiberglass material manufacturer with over 10-year experience, 7- year exporting experience.
We are manufacturer of fiberglass raw materials, Such as fiberglass roving, fiberglass yarn, fiberglass chopped strand mat, fiberglass chopped strands, fiberglass black mat, fiberglass woven roving, fiberglass fabric, fiberglass cloth..And so on.
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Post time: Oct-12-2021