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The manufacturing method of elastomer polyether is an important raw material for chemical production, widely used in fields such as polyurethane, rubber, and coatings. This article will introduce the manufacturing method of elastic polyether, including steps such as raw material preparation, polymerization reaction, and post-treatment

1、 Raw material preparation: The manufacturing of elastic polyether requires the preparation of the following raw materials: Polyols: Commonly used polyols include ethylene glycol, propylene glycol, butanediol, etc., used as initiators for polymerization reactions

2. Ethylene oxide: Ethylene oxide is a monomer in a polymerization reaction that reacts with polyols to form polyether segments

3. Catalyst: Used to promote polymerization reactions, commonly used catalysts include alkaline catalysts and acidic catalysts

2、 Polymerization reaction 

The manufacturing of elastic polyether uses polymerization reaction, which is generally divided into two production methods: intermittent and continuous. Taking the intermittent production method as an example, the steps of polymerization reaction are introduced: 

1 Add polyols to the reactor and heat them to the specified temperature

2. Add catalyst and stir evenly

3. Slowly add ethylene oxide and control the reaction rate to gradually increase the molecular weight of the polyether

4. Monitor reaction temperature, pressure, viscosity and other parameters to ensure the stability of the reaction process

After the reaction is complete, perform post-processing

3、 After the polymerization reaction is completed, the following post-processing steps need to be carried out: 

1 Remove catalyst: Use acidic or alkaline absorbent to remove catalyst residue

2. Degassing: Remove residual gases from polymers under vacuum conditions

3. Filtering: Filter out impurities and insoluble substances in the polymer

4. Packaging: Pack the elastomer polyether according to the specified requirements for storage and transportation

4、 Attention: In the manufacturing process of elastic polyether, the following precautions need to be taken: 

1 Strictly control the quality and proportion of raw materials to ensure stable product quality

2. Maintain stable temperature and pressure inside the reactor to prevent abnormal polymerization reactions

3. Timely monitor polymer molecular weight, viscosity and other parameters to ensure that the product meets the specified requirements

4. During the post-treatment process, catalyst residues should be thoroughly removed to avoid affecting product quality

5. During the production process, attention should be paid to safety, and relevant regulations and operating procedures should be followed

In summary, the manufacturing of elastic polyether requires strict control of raw materials, reaction conditions, and post-treatment steps to ensure product quality and production safety. At the same time, production enterprises need to have corresponding production qualifications and technical strength to ensure the smooth progress of the production process.