Using purified cellulose as raw material, artificial silk, celluloid, and ester derivatives such as nitrate and acetate can be produced; It can also be made into ether derivatives such as methyl cellulose, ethyl cellulose, carboxymethyl cellulose, and polyanionic cellulose, which are used in petroleum drilling, food, ceramic glazes, daily chemical products, synthetic washing, graphite products, pencil manufacturing, electronics, coatings, building materials, decoration, mosquito repellent, tobacco, papermaking, rubber, agriculture, adhesives, plastics, explosives, electrical and scientific research equipment, and other fields.
Carboxymethyl cellulose sodium, commonly known as cellulose, carboxymethyl cellulose, CMC and other names, is a renewable and inexhaustible chemical raw material widely used in industries such as textiles, printing and dyeing, petroleum drilling, papermaking, ceramics, synthetic washing, daily chemical industry, graphite products, pencil manufacturing, cigarettes, coatings, construction adhesives, etc. In recent years, it has been developed and utilized in the petroleum drilling industry, and its production level and variety have also made great progress. This is inseparable from the strong development and scientific research of cellulose related raw material manufacturers and machinery manufacturers. Compared with more than a decade ago, there has been great progress, and cellulose PAC for petroleum drilling has also occupied a place in the international market.
In other industries such as dry powder mortar building materials, water-resistant putty powder (paste) for interior and exterior walls, adhesives, sealants, interface agents, water-based coatings, self leveling agents and other new building materials, great progress has been made, with significant improvements in both quantity and quality. There are two main uses in the paper industry: pulp addition and surface sizing. The amount of pulp added is 0.3% to 0.5%, and a small amount can increase the longitudinal and transverse tensile strength of the paper by 30% to 50%, which has a good effect on the use and writing of the paper. Surface glue, especially the use of water retaining agents on copperplate paper, is a product that cannot be easily replaced by other adhesives. It plays a good role in the flatness and smoothness of the paper.
Keywrods: HPMC, HEMC, HEC, RDP
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