Early 1960s, appears on the foreign market three superplasticizer (or superplasticizer), which are naphthalene sulfonate formaldehyde condensates, polycyclic aromatic sulfonate formaldehyde condensates and melamine sulfonic acid formaldehyde condensates. The early 1960s, Japan and Germany began using superplasticizer in concrete. China in the early 1970s started to develop superplasticizer, Liaoning polycarboxylate liquor manufacturers, and the corresponding varieties can produce 2005 annual output of about 1.11 million tons, Shanxi polycarboxylate liquor manufacturers, production is still growing every year. In recent years, with the structural design requirements continue to increase the rapid development and concrete admixture technology, and now the construction of concrete slump, strength, impermeability, bending, antifreeze and other aspects of the increasingly high demand, Common superplasticizer has been difficult to meet the construction requirements. Development superplasticizer inevitable. The current domestic configuration of high-strength concrete superplasticizer are used, can be divided into four categories: Naphthalene (Naphthalin), multi-carboxylic (Polycarboxylic acid), three melamine-based (Melamine), amino acid-based (Aminosulfonic acid ). The above four categories superplasticizer, based on these four components of the main categories. In Japan are collectively referred to as high-performance AE water reducing agent. Each group of cement dispersion play a different role, is generally believed, polycarboxylates liquor manufacturers, negatively charged sulfonic acid groups and carboxylic acid groups can be adsorbed onto the surface of cement particles, Shijiazhuang polycarboxylate liquor manufacturers play the anchor role , also play a role in electrostatic repulsion. Long side extending in the solution plays a strong steric hindrance. Steric hindrance dispersion of cement particles stronger and less susceptible to the impact of electrolytes like electrostatic interactions, therefore polycarboxylate superplasticizer has a good dispersion of cement is also more adaptable species Ok. Polylactic acid liquor manufacturers | Sheen gather acid liquor manufacturers | high-strength building materials (certified merchants) are provided by high-strength Materials Co., Ltd. Linyi City. Linyi high-strength building materials Limited (www.lygqjc.cn) is specialized in "polycarboxylate superplasticizer, polycarboxylate liquor, poly carboxylic acid liquor," the business, the company adhering to the "honesty, hard service" concept, in order to You provide the most quality products and services. Welcome to inquire! Contact: Zhu Meng income.