(180ap) Synthesis of Ether Polycarboxylate Superplasticizer and the Application in Gypsum
AIChE Annual Meeting
2012
2012 AIChE Annual Meeting
Materials Engineering and Sciences Division
Poster Session: Materials Engineering and Sciences
Monday, October 29, 2012 - 6:00pm to 8:00pm
Plaster is a rich resources in China but now is not widely used.How to enhance the strength of the plaster is big problem especially the gypsum which were used in Ceramic mold .Under the conditions of gradually dropping of raw materials in to the reaction system,we used acrylic acid (AA), methacrylate (MA), methyl propylene sulfonate (SMS) and allyl poly (ethylene oxide) ether (APEG) which were acrylic monomers to synthesis type of ether polycarboxylate superplasticizer products.We optimize the reaction conditions such as temperature and addition time of monomers by saturation determination.The optimum reaction conditions were 85 ° C, monomers addtion time was 2.5 h.Different formulations of products based on the molecular design principles of regulation when we had diffreent propotion monomers.With plaster strength as an index to optimize the synthetic formula,the optimal formula of synthetic polycarboxylate superplasticizer in low dosage can significantly enhanced the strength of the gypsum.And then we can consider put thesuperplasticizer to produce in factory.
See more of this Session: Poster Session: Materials Engineering and Sciences
See more of this Group/Topical: Materials Engineering and Sciences Division
See more of this Group/Topical: Materials Engineering and Sciences Division