Starch ether is one of the most prolific natural polymers, and is composed of amylose and amylopectin. Amylopectin molecules are much larger than amylase. Starch ethers are chemically modified from starch. Potato starch, which is of high-purity, is the preferred amylase for building. Starch molecular weight and the degree of etherification determine the consistency and … Continue reading
HPS (short for hydroxypropyl starch ether) enables cement- and gypsum-based products with distinctive qualities. Similar to Hydroxypropyl Methylcellulose(HPMC) in the chemical structure, it can not only provide functions similar to cellulose, but also have very good compatibility with other additives in building. starch ether has a very small amount used in mortar products, and a … Continue reading
The effect of fresh mortar: The effect of hardened mortar; The specific process of polymer application in adhesive: One of the most important applications of polymer-modified cement mortar is the application of thin-layer construction methods to tile. The specific process is as follows: the dry powder adhesive with the package is mixed with water on … Continue reading
Drymix mortar for thin layer tiling has often to meet various technical requirements, such as good performance, good water retention, long open and adjustment time at high temperature, and good anti-sliding properties, etc. On the basis of the base to be tiled(such as concrete surface, brick structure, lime-cement plastering primer, plaster, wood, old tile surface, … Continue reading
Dry-mixed mortar or dry mortar is made of cement, sand, mineral and functional additives, mixing together proportionally. It is often in powder or granule form pre-mixed in special factory and transported to construction site. After stirring with adequate amount of water, it can be used directly. There are usually two kinds of dry mortars- normal type … Continue reading
The Water Retention Functions and Principles of Hydroxypropyl Methylcellulose The HPMC mainly plays a role in water retention and thickening, able to effectively improve the bond force and sag resistance of slurry. Air temperature, humidity, wind pressure and other factors will affect the evaporation rate of water in cement mortar and gypsum-based products. Therefore, in … Continue reading
The mechanism by which concrete shrinkage cracking occurs is as follows. In setting and hardening of concrete, the volume will change and the set cement will generate heat of hydration. Due to different rates of temperature increases and decreases on the surface or in the inner part of components, shrinkage deformation of concrete will be … Continue reading
With great honor we had Nippon Paper Group（日本製紙グループ www.nipponpapergroup.com ） visited our plant on February 27th, 2019. The sales manager 嶌田裕治 accompanied by three technicians visited our Sodium CarboxymethylCellulose plant and showed admiration to our manufacturing technique. CMC is one of the strong items of Sidleychem. We can supply CMC with different grades and applications, … Continue reading
Redispersible polymer powder (short for RDP) is a polymer powder with redispersible property. It is made from synthetic resin emulsion by adding other substances and then dried by spray. So it mainly contains polymer resin, additives, protective colloid, anti – caking agent. The manufacturing processes can be divided into two procedures-The first step is to … Continue reading
At the moment, the main Redispersible Polymer Powder in the market are: VAC/E, E/VC/VL, V AC/E/VeoVa, V/AC/V eo Va, A/S, V AC/A/V eo Va, PV AC, SBR, other binary and ternary copolymer rubber powders, other formula rubber powders added with functional additives, and other formula rubber powders with functional additives and more than one type … Continue reading