Manufacturing method of maleic anhydride grafted POE
Maleic anhydride grafted POE is an important raw material for the production of chemicals with a wide range of applications. In this paper, we will introduce the manufacturing method of maleic anhydride graft POE, including the steps of raw material preparation, reaction process, and post-treatment.
I. Raw material preparation
1. POE: Select POE with moderate molecular weight and good fluidity as raw material to ensure the smooth progress of grafting reaction.
2. Maleic anhydride: select maleic anhydride with high purity to reduce the influence of impurities on the grafting reaction.
3. initiator: choose appropriate initiator, such as benzoyl peroxide, to initiate the grafting reaction.
4. Solvent: choose the solvent that has no effect on the grafting reaction, such as toluene, etc., in order to regulate the viscosity of the reaction system.
2. Reaction process
1. Add POE and solvent into the reactor, stir well to make POE completely dissolved.
2. Add maleic anhydride and initiator, continue stirring to make the reaction system mix well.
3. Increase the reaction temperature and keep the reaction time to make maleic anhydride and POE fully grafted.
4. At the end of the reaction, cool down to room temperature, pour the reaction solution into the precipitation tank, and precipitate maleic anhydride grafted POE.
3. Post-treatment
1. Wash the precipitate with solvent to remove the unreacted maleic anhydride and initiator and other impurities.
2. The washed maleic anhydride grafted POE was dried to obtain a pure product.
3. Carry out quality testing of the product, 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 initiator and the occurrence of side reactions at high temperature.
2. Keep the reaction system clean during operation to avoid impurities entering the reaction system.
3. Carry out regular maintenance and repair of the equipment to ensure the normal operation of the equipment and the stability of the product.
In conclusion, the manufacturing method of maleic anhydride grafted POE needs to master the steps of raw material preparation, reaction process, and post-treatment, as well as pay attention to the details of the operation process, in order 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, providing important raw material support for the chemical production field.
