How to control the properties of semi-aqueous plastering gypsum? In general, the hemihydrate gypsum produced is often a mixture of hemihydrate gypsum and type III anhydrite. Type III anhydrous gypsum, also known as dehydrated hemihydrate gypsum, has the same crystal phase structure as the original hemihydrate gypsum. Type III anhydrous gypsum will quickly hydrate into
1. The drying time of plastering mortar on the wall The drying time on the wall is mainly related to four aspects: the degree of water absorption of the wall, the water retention of the mortar, the setting time of the mortar, and the ambient humidity. 1. The wall humidity is normal and the air
In the actual application process of the external walls internal insulation system. There are also some shortcomings that are widely criticized by everyone. For example: condensation (condensed water on the inner surface), mildew problems. Almost as soon as internal insulation is mentioned, everyone subconsciously thinks of the above two keywords. But is this problem really
How to test the viscosity of hydroxypropyl methylcellulose? Hydroxypropyl methyl cellulose for construction needs to avoid the infiltration of water into the wall, and the appropriate amount of water is retained in the mortar, which can make the cement fully produce good performance and perform the effect of water and water. Hydroxypropyl methyl cellulose The
When using CMC in the food production process, it is necessary to dissolve first. There are two usual methods— 1. Mix CMC with water directly to prepare a paste-like glue, then use it for later use. When configuring CMC paste, first add a certain amount of clean water to the batching tank with a stirring
CMC vs Sodium Alginate For a long time, the reactive dye printing paste is mainly sodium alginate. With the rising price of sodium alginate and some defects exposed in the process of rotary screen and flat screen printing. Some other natural polysaccharide pastes or synthetic pastes have emerged as alternatives to sodium alginate. This article
The quality of cellulose ether is influenced by many aspects. So how can we judge the quality of cellulose ether from the ash content of HPMC after combustion? First we need to understand what ash is. (1)Ash, also known as scorch residue, can simply be understood as impurities inside the product. They are naturally produced
Changes in temperature and humidity have a very important impact on self-levelling construction. And poor solutions can lead to a range of quality problems. Basis for adjustment of cement self-levelling formulations at low temperatures. It is well known that cement self-levelling formulations are complex and have many components. Some raw materials have a glassing temperature
Viscosity is an important parameter for the performance of cellulose ethers. So what effect does the viscosity of cellulose ether have on the performance of gypsum mortar? Generally speaking, the higher its viscosity, the better the water retention effect of the gypsum mortar. However, the higher the viscosity, the higher the molecular weight of the
Notes on the use of cellulose ethers in putty powder. Cellulose is commonly used in the fields of insulation mortar masterbatch, putty powder, asphalt roads and plaster products. It is used to improve and enhance the characteristics of building materials and to enhance the stability of production and construction suitability. Today, we would like to
