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[Chemical Knowledge]：Specification for storage and transportation of polybutylene terephthalate

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Polybutylene terephthalate (Polybutylene Terephthalate, referred to as PBT) is a kind of high performance engineering plastics, widely used in chemical industry, electronics, automotive, aerospace and other fields. Because of its excellent physical properties and chemical stability, PBT has become an important raw material in the production of many chemical products. However, attention must be paid to the safety storage and transportation specifications of PBT to ensure safety and efficiency in the production process. This paper will discuss the safe storage and transportation specification of PBT.

1. the physical and chemical properties of PBT

PBT has a high melting point (about 225-235 degrees C) and glass transition temperature (about 45-60 degrees C), with excellent heat resistance, cold resistance, weather resistance and electrical insulation. In addition, PBT also has good chemical resistance and dimensional stability, and can remain stable in many chemical environments such as acid and alkali.

2. PBT safety storage specifications

1. Storage environment: PBT should be stored in a dry, cool, well-ventilated indoor environment, avoid direct sunlight and high temperature.
2. Storage container: A container with good sealing and corrosion resistance should be selected for storage to avoid qualitative change of PBT in contact with air or other substances.
3. Storage period: The long-term storage stability of PBT is good, but under high temperature and light conditions, it will lead to its performance degradation. Therefore, the recommended storage period is about one year.

3. PBT transport specifications

1. packaging requirements: PBT in the transport process should use a special bag or container, to ensure its sealing and shock resistance, in order to prevent leakage or damage in the transport process.
2. Mode of transportation: Choose the appropriate mode of transportation according to the actual situation, such as car, train, ship or plane. During transportation, violent vibration and friction should be avoided to ensure the integrity of PBT.
3. Transportation insurance: In order to ensure the safety of PBT during transportation, corresponding transportation insurance should be purchased to reduce potential risks.

4. PBT safe operation specification

1. Operators should receive professional training to understand the nature of PBT and safe operation procedures to ensure that emergencies can be correctly handled during operation.
2. In the process of operation, PBT should avoid contact with open flame and high temperature objects to avoid fire or explosion.
3. In case of leakage or damage, measures shall be taken to clean and repair immediately to avoid pollution to the environment or harm to the health of personnel.

5. waste treatment specification

1. waste PBT should be classified and recycled, through professional treatment methods for recycling, improve the utilization rate of resources.
2. Waste PBT that cannot be recycled shall be disposed of in a safe and environmentally friendly manner to avoid environmental pollution.

summary:
polybutylene terephthalate is an important raw material for chemical production, and its safe storage and transportation regulations are very important to ensure the safety and efficiency of the production process. By understanding the physical and chemical properties of PBT, strict compliance with safe storage and transportation regulations, and ensuring professional training and safety awareness of operators, potential risks can be effectively reduced and the smooth progress of the production process can be guaranteed. At the same time, the disposal of waste should also follow the corresponding norms to protect the environment and resources.

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