Hydroxypropyl methyl cellulose is almost insoluble in anhydrous ethanol and acetone. The aqueous solution is quite stable at room temperature and can gel at high temperature. Most of the hydroxypropyl methyl cellulose on the market now belong to cold water (room temperature water, tap water)
2022/12/26 10:05
Aqueous film coating techniques are of current interest in pharmaceutical industry. This technology has precedents in both paints and adhesives technology. It is a field of applied science such as polymer, surface, mechanics, and rheological sciences. The quality of coating depends on film coating
2022/11/30 15:08
1. Why can wet-mixed mortar maintain its mappability for a long time? A certain retarder is added to the wet mortar in order to delay the hydration and hardening speed of cement, so that the newly mixed mortar can remain plastic in a long time, and can ensure the product transportation and
2022/11/18 10:57
The retardation of cellulose ether: The third function of cellulose ether is to delay the hydration process of cement. Cellulose ether imparts various beneficial properties to the mortar, and also reduces the early hydration heat release of cement and delays the hydration kinetic process of cement
2022/11/05 13:57
Thickening and thixotropy of cellulose ether: The second function of cellulose ether - thickening effect depends on: the degree of polymerization of cellulose ether, solution concentration, shear rate, temperature and other conditions. The gelling properties of the solution are unique to alkyl
2022/11/05 13:42
1. What is the main purpose of hydroxypropyl methylcellulose (HPMC)?——A: HPMC is widely used in building materials, coatings, synthetic resins, ceramics, medicine, food, textiles, agriculture, cosmetics, tobacco and other industries. HPMC can be divided into: construction grade, food grade and
2022/11/05 11:25
1, Food industry, used as thickener, suspending agent and adhesive.2, In the paper industry, it is used as the interior and surface sizing of paper to make the printing ink bright and uniform, the glue film smooth, limit the ink consumption, and have a positive roughening ability.3, In the material
2022/10/25 11:39
1, During suspension polymerization, limit the interfacial tension between vinyl chloride monomer (VCM) and water, and assist VCM to be evenly and stably dispersed in the aqueous medium.2, Prevent the coalescence of VCM droplets at the preliminary stage of polymerization.3, Prevent coalescence
2022/10/25 11:24
Hydroxyethyl methyl cellulose (HEMC) is a non-ionic cellulose combined ether made from cotton and timber via alkalization, ethylene oxide and methyl chloride etherification. HEMC is extensively used in water-based latex coatings, building and constructing materials, printing ink, oil drilling and 
2022/10/25 11:05
Highlights•HPMC is a traditional pharmaceutical excipient with favorable safety profile.•Mucoadhesive properties and controlled release in oral and oromucosal formulations.•HPMC inhibit drug crystallization in amorphous solid dispersions.•Applicable to nanoprecipitation, hot-met extrusion, 3D
2022/09/30 14:22
The durability of plastering mortar plays an important role in building quality. The main problems of building plaster mortar include dropping powder, cracking and empty drum. In order to improve the durability of building plastering mortar, it is necessary to deeply analyze the factors affecting
2022/09/30 11:43
ETONse YT series starch ether is a kind of non-ionic starch ether products suitable for building materials system such as putty, tile adhesive and mortar after careful analysis of market demand by the R&D team of ETON.This series of products through the use of special reaction process and
2022/09/24 16:46