聚羧酸减水剂的优势（Advantages of polycarboxylate superplasticizer）.docVIP

聚羧酸减水剂的优势（Advantages of polycarboxylate superplasticizer） Significance of popularizing polycarboxylic acid water reducing agent (1) saving energy and resources; At present, China is in a period of rapid development and construction, and the relative shortage of energy resources is an important problem restricting the rapid development. On the one hand, polycarboxylate superplasticizer and mineral admixture has good matching, to promote the application of industrial products, on the other hand, with its high water reducing rate, can save a large amount of cement, which means that a project can save tens of thousands of tons of cement, to ease the current shortage of resources and energy. At the same time reduce the clinker burning caused by environmental pollution plays an important role, with the development trend of green building materials. (2) low environmental load to promote the development of green building materials Formaldehyde is a highly toxic substance, and formaldehyde ranks second in our list of priority lists of toxic chemicals. Formaldehyde has been identified as a carcinogen and teratogenic substance by WHO. It is recognized as a source of allergy and is one of the potentially powerful mutagens. Studies have shown that formaldehyde has a strong carcinogenic and carcinogenic effect. The influence of formaldehyde on human health is mainly manifested in abnormal smell, irritation, allergy, abnormal lung function, abnormal liver function and abnormal immune function. Naphthalene superplasticizer for naphthalene sulfonic acid formaldehyde condensates, using naphthalene by sulfonation reaction with formaldehyde, naphthalene sulfonic acid formaldehyde condensates generated with a certain amount of the alkali to neutralize a mixture of salt and sodium sulfate to obtain sulfonated naphthalene formaldehyde condensates of the naphthalene superplasticizer. The synthesis is divided into four reaction steps, namely sulfonation reaction, hydrolysis reaction, conden