Answer: HPMC can be divided into instant type and hot dissolve type, instant products, in cold water quickly dispersed, disappeared in water, at this time the liquid has no viscosity, because HPMC is just dispersed in water, no real dissolution. After about 2 minutes, the viscosity of the liquid gradually increases, forming a transparent, sticky gel. Hot soluble products, in cold water, can quickly disperse in hot water, disappear in hot water, when the temperature drops to a certain temperature, viscosity slowly appear, until the formation of transparent viscous colloid. Hot soluble type can only be used in putty powder and mortar, in liquid glue and paint, there will be clumping phenomenon, can not be used. Instant type, a wide range of applications, in putty powder and mortar, as well as liquid glue and paint, can be used, there is no taboo。
The global market for hydroxyethyl cellulose is expected to grow at a compound annual growth rate (CAGR) of around 5% from 2021 to 2028. This growth can be attributed to the increasing demand for HEC in various applications such as personal care, pharmaceuticals, oilfield drilling, and construction. The production of HEC involves chemical modification of cellulose through ethylene oxide, creating a non-ionic, water-soluble derivative. This process requires specialized technology and expertise, which only a select few manufacturers possess. Key players in the HEC manufacturing market include companies like Ashland, Shin-Etsu Chemical Co., Ltd., DuPont, and Kemira, among others. HPMC is commonly used in the preparation of controlled release formulations, where it acts as a gelling agent to control the release rate of drugs. By adjusting the molecular weight and concentration of HPMC, manufacturers can tailor the gelation temperature to achieve the desired drug release profile.WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
And for gluten-free food manufacturers it must be a god send.
3. Temperature stability HPMC can withstand high temperatures without losing its thickening properties, making it suitable for use in hot processes.