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[Chemical Knowledge]：Production and manufacturing method and process flow of maleic anhydride grafted POE

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Manufacturing Method
of Maleic Anhydride Grafted POE
Maleic Anhydride Grafted POE is an important raw material for chemical production and has a wide range of applications. This article will introduce the manufacturing method of maleic anhydride grafted POE, including raw material preparation, reaction process, post-treatment and other steps.

1. Raw Material Preparation

1. POE: Select POE with moderate molecular weight and good fluidity as raw material to ensure the smooth progress of the grafting reaction.
2. Maleic anhydride: Maleic anhydride with higher purity is selected to reduce the influence of impurities on the grafting reaction.
3. Initiator: An appropriate initiator, such as benzoyl peroxide, is selected to initiate the grafting reaction.
4. Solvent: Select a solvent that has no effect on the grafting reaction, such as toluene, to adjust the viscosity of the reaction system.

2. reaction process

1. POE and solvent into the reaction kettle, stirring, POE completely dissolved.
2. Maleic anhydride and initiator are added, and stirring is continued to mix the reaction system evenly.
3. Raise the reaction temperature and maintain a certain reaction time to make the maleic anhydride and POE fully grafted.
4. After the reaction, cool down to room temperature, pour the reaction solution into a precipitation tank, and precipitate maleic anhydride grafted POE.

3. Post-treatment

1. The precipitate is washed with a solvent to remove impurities such as unreacted maleic anhydride and initiator.
2. The washed maleic anhydride grafted POE is dried to obtain a pure product.
3. The quality of the product testing, including the determination of grafting rate, molecular weight and other indicators.

4. Precautions

1. Control the reaction temperature and time to avoid the decomposition of the initiator and the occurrence of side reactions at high temperatures.
2. Keep the reaction system clean during operation to avoid impurities entering the reaction system.
3. Regular maintenance and maintenance of the equipment to ensure the normal operation of the equipment and the stability of the product.

In short, the manufacturing method of maleic anhydride grafted POE needs to master the steps of raw material preparation, reaction process, and post-treatment, and pay attention to the details of the operation process to ensure the quality and stability of the product. Through reasonable process control and equipment maintenance, high-quality maleic anhydride grafted POE products can be produced, which provides important raw material support for the production of chemical products.

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