
PRODUCT
Description
2. Physical characteristics and morphology
The appearance of polybutylene terephthalate is usually a milky white semi transparent to opaque solid with a glossy surface, and it is a semi crystalline material. Its melting point is about 223-233 ° C, and its long-term use temperature can reach 120-140 ° C. Polyurethane terephthalate has excellent comprehensive performance: it not only has high mechanical strength, good toughness, and fatigue resistance, but also has excellent self-lubricating properties and low friction coefficient. In addition, its moisture absorption is extremely low, and it can still maintain stable electrical insulation and dimensional accuracy in humid environments.
3. Industry positioning and production background
Polybutylene terephthalate plays a crucial role in the industrial sector. Due to its fast crystallization speed and good fluidity, it is very suitable for rapid injection molding, with a short processing cycle and high production efficiency
Although polybutylene terephthalate itself has many advantages, in order to overcome its disadvantages such as low notch impact strength and large molding shrinkage, glass fiber is commonly used for reinforcement and modification in industry. The modified polybutylene terephthalate has doubled its mechanical strength and heat resistance, making it a core material for manufacturing high demand products such as electronic appliances and automotive components.
Product Images & Packaging



Polybutylene Terephthalate Parameters
| Polybutylene terephthalate Chemical Properties |
| Melting point | 226 °C |
| density | 1.31 g/mL at 25 °C(lit.) |
| storage temp. | -70°C |
| form | pellets |
| biological source | human |
| Specific Activity | 6-8nmol/min·mg |
| Cosmetics Ingredients Functions | VISCOSITY CONTROLLING FILM FORMING |
| InChI | InChI=1S/C8H6O4.C4H10O2/c9-7(10)5-1-2-6(4-3-5)8(11)12;5-3-1-2-4-6/h1-4H,(H,9,10)(H,11,12);5-6H,1-4H2 |
| InChIKey | PCVVBHUFWPHCAL-UHFFFAOYSA-N |
| SMILES | C(C1C=CC(C(=O)O)=CC=1)(=O)O.C(CO)CCO |
| CAS DataBase Reference | 26062-94-2 |
The application of Polybutylene Terephthalate
The main uses of polybutylene terephthalate
The application of polybutylene terephthalate highly relies on its excellent electrical insulation, heat resistance, mechanical strength, and processing convenience. By compounding with additives such as glass fiber and flame retardants, polybutylene terephthalate materials have widely penetrated into the fields of electronics and electrical engineering, automotive manufacturing, and daily consumer goods.
Electronics and Electrical Industry
In the field of electronics and electrical engineering, polybutylene terephthalate is an indispensable material, especially for connectors, switches, and spools. Polybutylene terephthalate has extremely high volume resistivity and dielectric strength, coupled with its stable size and chemical corrosion resistance, making it ideal for manufacturing precision integrated circuit sockets, relay housings, potentiometer brackets, and micro motor end caps. In terms of device heat dissipation, polybutylene terephthalate is widely used in the production of heat dissipation fan frames and blades in devices such as computers and projectors, thanks to its good rigidity, heat resistance, and ease of forming into complex shapes. In addition, it is also an ideal choice for producing deflection coils, tuner housings, as well as various high-voltage components such as circuit breakers and temperature switches for color televisions.
automotive industry
With the development of automotive lightweighting trend, the application of polybutylene terephthalate in automotive manufacturing is increasing day by day. Polybutylene terephthalate and its alloys (such as polybutylene terephthalate/PC alloy) are commonly used to manufacture large components such as car bumpers and body panels. In terms of power and functional systems, polybutylene terephthalate is used to manufacture components such as window motor housings, carburetor assemblies, transmission gearboxes, igniters, and wiper covers. Due to its oil resistance, chemical corrosion resistance, and ability to withstand the high temperature environment of the engine compartment, it is also a reliable material for fuel supply system components and spark plug peripheral components.
Industrial and consumer goods
In the field of industrial machinery, polybutylene terephthalate is processed into pump housings, valve components, and blades for food processing equipment, utilizing its high strength and corrosion resistance to meet strict operating requirements. In the field of energy and communication, polybutylene terephthalate is used as a coating material for optical fiber cables to protect the internal fibers from external damage. In daily consumer goods, polybutylene terephthalate can also be seen everywhere: the lamp holder of energy-saving lamps, the shell of hair dryers, parts of coffee utensils, and even the sole of ice skates all rely on the support of polybutylene terephthalate. In addition, high-quality toothbrush bristles and makeup brush bristles are often made of polybutylene terephthalate, utilizing its excellent resilience and wear resistance.
Polybutylene terephthalate is one of the cornerstone materials that support the operation of modern industry. After being reinforced with glass fiber, it silently ensures electrical safety, structural stability, and device operation by hiding in the interfaces of smartphones, under the hood of cars, and at the core of household appliances, thanks to its “combination of rigidity and flexibility”.
Polybutylene Terephthalate 's Procurement Guide
Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)
2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ:1kg
3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services

FAQ
Yes, non-toxic, free of heavy metals, and recyclable; Compliant with RoHS and REACH, food grade can be used in contact scenarios.
Dry and sealed, cool and ventilated (≤ 30 ℃), moisture-proof and resistant to direct sunlight; Non hazardous chemicals, general cargo transportation; Packaging 25kg/bag or ton bag.
Composed of 1,4-butanediol (BDO)+terephthalic acid (PTA)/DMT condensation; There are two methods: direct esterification (mainstream) and ester exchange.
Pure polybutylene terephthalate (universal injection molding), fiberglass reinforcement (high-strength/heat-resistant), flame retardant grade (electronic), alloy grade (automotive); According to the requirements of heat resistance, strength, flame retardancy, and color matching.
Related References
Manufacturer of Polybutylene Terephthalate
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Polybutylene Terephthalate manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
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