They are frequently used to replace metal for applications in which light weighting, improved impact strength, elastic modulus, and material strength are required.

What is PBT? Polydibutyl terephthalate is a crystalline thermoplastic engineering plastic polymerized by dimethyl terephthalate (DMT) and 1,4-butanediol. PBT can also be called thermoplastic polyester plastic, in order to be used by different processing operators, generally how many additives will be added, or mixed with other plastics, with the proportion of additives is different, can manufacture different specifications of products. Due to its special properties, PBT is an ideal material for special applications in electrical engineering and electronics. 1. mechanical properties: high strength, fatigue resistance, dimensional stability, creep is also small (there is little change under high temperature conditions) 2. heat resistance aging: enhanced UL temperature index of 120~140℃(outdoor long-term aging is also very good) 3. solvent resistance: no stress cracking 4. water stability: PBT is not easy to decompose in water 5. insulation performance: excellent (wet, high temperature can also maintain stable electrical performance) What is fiberglass? Glass fiber (formerly known as glassfiber) is an inorganic nonmetallic material with excellent properties. It is made of pyrophylla, quartz sand, limestone, dolomite, borocalcium, boromite and seven ores as raw materials by high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its monofilament ranges from several microns to more than twenty microns, equivalent to 1/20-1/5 of a hair, and each fiber filament is composed of hundreds or even thousands of monofilament. Fiberglass products are relatively environmentally friendly within the controllable range. PBT has very weak hygroscopic properties. The tensile strength of the non-enhanced PBT is 50MPa, and the tensile strength of the glass fiber reinforced PBT is 170MPa. PBT crystallizes very quickly, so it is easy to bend and deform parts during injection molding due to uneven cooling. The shrinkage rate of general PBT materials is between 1.5% and 2.8%. PBT materials with 30% glass fiber reinforcement shrink between 0.3% and 1.6%. 1. high temperature resistance After testing, when the temperature reaches 300℃, there is no effect on the strength of glass fiber. 2. high tensile strength The tensile strength of glass fiber is 6.3~6.9g/d in the standard state, and 5.4~5.8g/d in the wet state. 3. good electrical insulation Glass fiber has excellent electrical insulation, is a high-level electrical insulation material, and is also used in insulation materials and fire shielding materials. 4. Burn Glass fiber can be melted into glass beads at high temperature, which meets the requirements of fire prevention and control in the construction industry. 5. good sound insulation The combination of glass fiber and gypsum can achieve a good sound insulation effect Why filled PBT with glass fiber? Adding glass fiber to PBT is a common method of PBT enhancement modification. Glass fiber and PBT resin bonding force is good, after adding a certain amount of glass fiber to PBT resin, not only can maintain the original advantages of PBT resin chemical resistance, processability and so on, but also can greatly improve its mechanical properties, and overcome PBT resin notch sensitivity. Impacts of Long Glass Fiber Reinforced PBT Compounds 01Wear resistance PBT has excellent wear resistance and is advantageous where resistance to friction and wear is required. In applications such as mechanical transmission components and bearings, the wear resistance of PBT has been effectively utilized. 02Mechanical properties PBT has excellent mechanical properties after modification. It has high strength and fatigue resistance, good dimensional stability and low creep. Therefore, PBT is often used for parts that need to withstand larger loads and be used for a long time. 03Thermal stability PBT has excellent thermal stability, can maintain its performance under high temperature conditions, and is not prone to thermal decomposition or deformation. This makes PBT an ideal choice for withstanding high-temperature working environments, such as wire connectors and insulating parts in electronic and electrical equipment. 04Flame retardancy PBT has good flame retardant properties after modification and can meet the flame retardant requirements of some special fields. UL94 is a standard for testing the flame retardant properties of materials. The flame retardant grade of PBT engineering plastics can reach UL94 V-0 level, which means that in the flame test, the burning time of the PBT sample is shorter than 10 seconds, and there is no flame retardant during the burning process. dripping phenomenon. This makes PBT molding materials widely used in fields with high requirements for flame retardancy, such as the electronic and electrical industry, providing reliable guarantee for safety performance.

Product grade: General grade Fiber specification: 20%-60% Product feature: High toughness, Low warpage Product application: Electronic appliances, Machinery parts etc.

Product grade: General grade Fiber specification: 20%-60% Product feature: High toughness, Low warpage Product application: Electronic appliances, Machinery parts etc.

They are frequently used to replace metal for applications in which light weighting, improved impact strength, elastic modulus, and material strength are required.

They are frequently used to replace metal for applications in which light weighting, improved impact strength, elastic modulus, and material strength are required.

injection molding pbt recycle material pbt compound material.

PBT materials Polybutylene terephthalate (PBT) is a thermoplastic polyester and one of the top five engineering plastics. PBT has excellent overall performance, is one of the toughest engineering plastics, and has high dimensional stability, good chemical resistance, excellent electrical insulation, good mechanical properties and elasticity, low water absorption, etc. PBT filling Long glass fiber compounds PBT (polybutylene terephthalate) is a polyester-based plastic, while glass fiber is a reinforcing material that is usually added to plastics in fiber form to enhance their mechanical properties. When PBT is combined with glass fibers, the following effects occur: 1. Enhanced strength and stiffness: glass fiber has excellent strength and stiffness, and adding it to PBT can significantly increase the mechanical properties of the plastic. This makes the material of PBT with glass fiber more strong and rigid when it is subjected to force or stress, and less likely to deform or break. 2. Improve heat resistance: glass fiber has a high melting point and good heat resistance performance. When glass fiber is added to PBT, it can improve the heat resistance of PBT, so that it can keep better performance at higher temperature and prevent softening or melting. 3. Improve corrosion resistance: Glass fiber has excellent corrosion resistance, and adding it to PBT can improve its resistance to chemicals, solvents and other corrosive media. This makes PBT with glass fiber have longer service life in some special environments. 4. Improve insulation performance: PBT itself has good insulation performance, and the addition of glass fiber further improves the insulation performance of PBT material. This makes the PBT with glass fiber more suitable for electrical and electronic applications, which can effectively isolate the current and reduce leakage and electromagnetic interference. All in all, PBT with glass fiber can enhance the mechanical properties, heat resistance, corrosion resistance and insulation properties of plastics, making them more widely used in various applications. However, the performance of the material may vary depending on the specific glass fiber content and the addition process. Fiber specification Grade Fiber specification Characteristics Application Length Color Package General grade 20%-60% High toughness, Low warpage Electronic appliances, mechanical parts, etc. About 12mm,  or customzied Natural color,  or customized 25kg/bag The difference between LGF & SGF Short glass fiber particles: Size size is about 3-4mm, length to width ratio 50-250 Long glass fiber particles: Size is about 10-12mm, aspect ratio >400 In addition, the distribution of glass fiber in the two kinds of particles is also different. Compared with SGF, the rigidity, strength and modulus of LGF have been improved, especially the notched impact performance has got a qualitative leap. Application Datasheet for reference About us Xiamen LFT composite plastic Co., Ltd. is a brand-name company that focuses on LFT&LFRT. Long Glass Fiber Series (LGF) & Long Carbon Fiber Series (LCF). The company's thermoplastic LFT can be used for LFT-G injection molding and extrusion, and can also be used for LFT-D molding. It can be produced according to customer requirements: 5~25mm length. The company's long-fiber continuous infiltration reinforced thermoplastics have passed ISO9001&16949 system certification, and the products have obtained lots of national trademarks and patents.

What is PBT? Polybutylene terephthalate (PBT) is a thermoplastic polyester and one of the five engineering plastics. PBT has excellent comprehensive performance, is one of the toughest engineering plastics, and has high dimensional stability, good chemical corrosion resistance, excellent electrical insulation, good mechanical properties and elasticity, low water absorption and so on. What is PBT-LGF? As one of the engineering plastics, most of the PBT needs to be modified to meet the corresponding requirements in the practical application field. PBT modification is mainly divided into: flame retardant PBT, glass fiber reinforced flame retardant PBT, glass fiber reinforced PBT. The modified PBT material is mainly used in the field of lighting (such as LED lamp shell), electronic and electrical fields (such as relay shell and spinner, socket, optical fiber connector, etc.) and automotive manufacturing (such as junction box, ignition system parts, external door handles, etc.). The difference between Long glass fiber & Short glass fiber Long glass fibers range in length from 6 to 25mm, while staple fibers are usually less than 6mm, or even between 0.2 and 0.6mm. Long glass fiber has more excellent performance in machanical properties. It is more suitable for large products and structural parts. It has 1-3 times higher (toughness) than short fiber, and the tensile strength (strength and rigidity) is increased by 0.5-1 times. What is the application of PBT-LGF? In the lighting industry, most of the lamp shell is used for enhanced flame retardant PBT material, whose performance requirements are easy to process and form, good mechanical properties, high and low temperature cycle resistance, flame retardant level UL94 3.0mm or 1.5mm V0, high temperature resistance, yellowing resistance effect is good. Its appearance requires transparent color or porcelain white shading, smooth surface, no floating fiber. In the field of automobile manufacturing, the modified PBT is mainly used in such as automobile wiper bracket, automobile headlight lighting ring, automobile transmission gear box, windshield pillar, motor shell and so on. TDS for reference only Injection molding About us Xiamen LFT composite plastic Co., Ltd. is a brand-name company that focuses on LFT&LFRT. Long Glass Fiber Series (LGF) & Long Carbon fiber Series (LCF). The company's thermoplastic LFT can be used for LFT-G injection molding and extrusion, and can also be used for LFT-D molding. It can be produced according to customer requirements: 5~25mm in length. The conpany's long-fiber continuous infiltration reinforced thermoplastics have passed ISO9001&16949 system certification, and the products have obtained lots of national trademarks and patents. Contact us

Product grade: General grade Fiber specification: 20%-60% Product feature: High toughness, Low warpage Product application: Electronic appliances, Machinery parts etc.

Product grade: General grade Fiber specification: 20%-60% Product feature: High toughness, Low warpage Product application: Electronic appliances, Machinery parts etc.