Views: 2 Author: Site Editor Publish Time: 2022-01-22 Origin: Site
Detergent grade HPMC hydroxypropyl methyl cellulose is a white or slightly with a slight yellow powder, and odorless, tasteless, non-toxic. A solvent that quickly disperses in a mixture of cold water and organic matter, reaching maximum consistency in a few minutes and forming a transparent viscous solution. Water liquid has surface activity, high transparency, strong stability, dissolving in water is not affected by pH. It has thickening and antifreezing effect in shampoo and shower gel, and has water retention and good film forming property for hair and skin. With the rise of basic raw materials, cellulose (anti-freeze thickener) can be used in laundry detergents, shampoos and shower gels to reduce costs and achieve desired results.
Characteristics and advantages of washing grade cold water soluble cellulose HPMC:
1, low irritation, high temperature and sex;
2, wide pH stability, can ensure its stability in the range of pH 3-11;
3, increase the emphasis on rationality;
4. Increase and stabilize bubbles to improve skin sensation;
5. Effectively improve the liquidity of the system.
6, easy to use, cold water into the fast dispersion will not clump
Application scope of detergent grade HPMC:
Instant soluble HPMC is used for laundry detergent, shampoo, body wash, facial cleanser, lotion, cream, gel, toner, hair conditioner, shaping products, toothpaste, mouthwash, toy bubble water.
Matters needing attention
Unqualified detergent grade HPMC hydroxypropyl methyl cellulose shows poor transparency, poor thickening effect, dilute after long time, some will even mildew, in order to avoid cellulose precipitation in the process of use, should be stirred before consistency.
The difference between slow solution and instant solution HPMC products
Hydroxypropyl methyl cellulose (hereinafter referred to as HPMC) can be divided into instant and slow solution type, instant HPMC refers to the use of crosslinking agent on its surface treatment in the production process, so that HPMC can be quickly dispersed in cold water, but not really dissolved, through uniform stirring, viscosity slowly up after, is dissolved; Slowly dissolved HPMC can also be called hot soluble products, in cold water clumping, can be in hot water, quickly dispersed in hot water, through uniform stirring, to be the solution temperature dropped to a certain temperature (my company's product gel temperature is about 60 deG C), viscosity will slowly appear, until the formation of transparent viscous colloid.
The physicochemical indexes of instant solution and slow solution HPMC are the same, but they are different in the application range.
Slow solution dissolve HPMC is mainly used in mortar, putty and other dry mixing mortar, uniform dry mixing HPMC separated by other materials, add water immediately after viscosity, not clumping; In doing glue and coating, can appear hold together phenomenon, must use hot water or through sufficient agitation ability makes its dissolve.
Quick-soluble instant HPMC than slow-soluble HPMC has a wider range of applications, in the gray calcium based putty and cement-based mortar, as well as glue, coating can be used, in alkaline conditions quick-soluble HPMC quickly reach the viscosity calibration; In gypsum based mortar, due to gypsum pH acid, so lead to soluble HPMC sticky very slow, and building gypsum initial setting ≥3min, final setting ≤30min, although gypsum based mortar has added a certain amount of retarder to delay its setting time, but the operating time is not as good as cement and gypsum based products, Therefore, some alkaline substances must be added to improve the sticking time of HPMC.