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TPEG polyether water reducer has better performance than APEG in terms of the effect on polycarboxylate superplasticizer

Views:21     Author:su     Publish Time: 2018-08-21      Origin:Site Inquire

TPEG polyether water reducer has better performance than APEG in terms of the effect on polycarboxylate superplasticizer

Under the same synthetic process conditions, the performance of polycarboxylate superplasticizers prepared by TPEG polyethers of different manufacturers in accordance with national standards is significantly different. TPEG polyether has a great influence on the cement adaptability of polycarboxylate superplasticizer and concrete performance. In the process of selecting and using TPEG polyether, it is not enough according to the national standard, and it is necessary to select a polyether suitable for the process itself according to the synthetic process. It is recommended that relevant national units and polyether production enterprises establish a more complete polyether detection method as soon as possible to find out the inherent differences between different manufacturers' polyethers and provide users with a wider choice. With the construction of major national projects, various types of high performance polycarboxylate water reducing agents are increasingly used in engineering construction. In order to better meet the engineering needs, domestic polycarboxylate superplasticizers have undergone a transition from a polyester polycarboxylate superplasticizer to a polyether polycarboxylate superplasticizer. The polyether polycarboxylate superplasticizer has evolved from the original propenol ether (abbreviated as APEG polyether) to the current prenyl polyether (TPEG polyether). Each step of the polycarboxylate superplasticizer has its own unique properties and characteristics, but in contrast, the polycarboxylate superplasticizer prepared by using TPEG polyether not only has the characteristics of simple production process of ether water reducer. At the same time, it has better adaptability to cement and less loss of concrete slump, especially in summer. As a result, more and more polyether manufacturers and polycarboxylic acid production units have turned their attention to TPEG polyethers. Overnight, TPEG polyethers have sprung up everywhere in the country. In addition to several major polyether production plants, relatively small-scale polyether production plants are also emerging. Due to the differences in production equipment, catalyst technology, and management level used by various production units, the quality of polyethers varies widely.

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