3,3′,4,4′-Biphenyltetracarboxylic dianhydride CAS: 2420-87-3 3

 Usage

3,3',4,4'-Biphenyltetracarboxylic dianhydride (BPDA) is an important intermediate in organic synthesis and has a wide range of applications:

Polyimide synthesis

• High-performance films: It can undergo a polycondensation reaction with diamine compounds to produce polyimide films. These films have excellent high-temperature resistance. Even in a high-temperature environment above 200 °C, they can still maintain good mechanical properties and electrical insulation. Therefore, they are often used in the aerospace field for the insulation protection of motors and electrical appliances or as the base material for flexible printed circuit boards.
• Engineering plastics: The synthesized polyimide engineering plastics have high strength, good rigidity, and are also wear-resistant. They can be injection-molded to manufacture some precision parts with strict requirements for mechanical properties, such as small brackets around aircraft engines and transmission parts inside high-end mechanical watches.
• Coating field: Polyimide coatings synthesized based on BPDA have outstanding chemical corrosion resistance. When applied to the inner walls of chemical storage tanks and reactors, they can resist the erosion of various acids, bases, and organic solvents for a long time, ensuring the service life of the equipment. At the same time, they also have good heat resistance. When coated on high-temperature exhaust pipes and engine casings, they will not peel off easily due to high temperatures.
• Fiber materials: It is used to manufacture high-performance fibers. The polyimide fibers produced have high strength, high modulus, and excellent thermal stability. They are often used to produce fireproof suits, special ropes for aerospace, etc., providing reliable protection for personnel and equipment in high-temperature and high-risk scenarios.

Packaging and Shipping

20KG/Drum or as customer requirements.
Belongs to common goods and can deliver by ocean and air

Keep and storage

Shelf life:24 month from date of manufacture in original unopened packaging stored in a cool dry place out of direct sunlight, water.
Ventilated warehouse, Low temperature drying, Separated from oxidants, acids.