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CMC For Detergent Used As Colloids And Binders
Jul 06, 2017

CMC For Detergent Used as colloids and binders

1918 was first made by Germany, and in 1921 approved the patent and seen in the world. And then in Europe to achieve commercial production. At that time only for crude products, used as colloids and binders.

1936 ~ 1941, sodium carboxymethyl cellulose industrial application research is very active, invented a number of very instructive patents.

 During the Second World War, Germany used sodium carboxymethyl cellulose for synthetic detergents. Hercules company in 1943 for the first time the United States made sodium carboxymethyl cellulose, and in 1946 the production of refined sodium carboxymethyl cellulose products, the product is recognized as a safe food additives.

In the seventies of last century China began to use, the nineties began to use. Is the world's most widely used, the largest amount of cellulose. First, the chemical composition is not the same, sodium carboxymethyl cellulose is refined cotton made by processing, and sodium carboxymethyl starch is processed by corn starch, sodium carboxymethyl starch is less than the cost of carboxymethyl cellulose Sodium sodium, sodium carboxymethyl cellulose sodium, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl cellulose Some industries need sodium carboxymethyl starch can not replace sodium carboxymethyl cellulose, can only be used to reduce the cost and use of sodium carboxymethyl cellulose. When sodium carboxymethylcellulose is used in the production of moon cakes, sodium carboxymethylcellulose may be stirred with the cake or cake, or it may be applied to the outer surface of the cake. The use of sodium carboxymethylcellulose in moon cakes can play these roles:

 1, can prevent moon cake mildew;

2, can prevent the moon cake because of lack of water and harden to extend the shelf life of pastry;

3, you can increase the moon cake skin crisp feeling, so that the moon cake is more shiny;

4, so that cake filling soft, fragrant, soft features.

In all dry mortar products, without adding the addition of methyl cellulose ether, its greatest contribution is to increase the water retention capacity of mortar, improve the mobility and construction, improve the initial strength of cement mortar and to avoid cracking, especially in the High water absorption grassroots and high temperature construction performance is particularly prominent. The influence of cellulose ether on the flexural, compressive and tensile bond strength of cement mortar under the premise of dispersing the latex powder was studied. The pore structure was analyzed by mercury intrusion method. Porosity and pore size distribution. The results show that the tensile strength of cement mortar doped with cellulose ether is improved. After adding methyl cellulose ether, the flexural and compressive strength of cement mortar is reduced, the higher the dosage is, the lower the strength is: With the increase of the content, the flexural strength of cement mortar increases first and then decreases, and the compressive strength decreases, and the optimum dosage is controlled at 0.1% -0.3%: cement After the MC is mixed with the mortar, the pore area increases, the number of pores increases, the number of large pores decreases, and the average pore size decreases.