Cellulose ether is the main additive of light plastered gypsum, which plays an important role in light plastered gypsum. Right is not sensitive to plaster the basicity of cellulose ether HPMC products, can rapidly infiltrate in all kinds of gypsum products and won’t produce cluster, porosity of plastering gypsum after curing without negative impact, so as to ensure the breathing performance of plastering gypsum, retarding action but not has influence on the gypsum crystals grew up, with proper wet viscous force to ensure material bonding ability, on the base surface Greatly improve the construction performance of gypsum products, making them easy to spread without sticking to tools.
As you all know, in recent years, with the development of the country and adjust policies, the development of green environmental protection building materials has become a hot spot, as indoor plastering material of new materials, plastering gypsum is increasingly highlighted, plastering gypsum is to replace the cement mortar of new energy-saving materials, environmental protection, economy, both the strength of the cement, and compared to the cement healthy environmental protection, durable, Adhesive force is big, not easy to powderize, not cracking, not empty drum, not dropping powder and other advantages, easy to use, cost saving, light plaster gypsum is mainly based on building plaster powder as the main material, to light perlite or glass beads as aggregate, add a variety of new plaster materials.
Cellulose ether Has the following advantages:
First, adjust the air humidity, when the external humidity is higher than the corresponding humidity of plaster plaster, because the external vapor pressure is higher than its saturated vapor pressure, promote the internal performance of adsorption of water, so as to delay the rise of humidity; When the external humidity is lower than the corresponding humidity of plastered gypsum, the external vapor pressure is lower than its saturated vapor pressure, prompting the evaporation of internal water molecules. Therefore, it can play the role of adjusting and controlling humidity.
Second, effective flame retardancy. The molecular weight of dihydrous gypsum is 172, and the molecular weight of water is 18. When a house of 100m2 meets a fire, when the temperature reaches 110℃ or above, dihydrous gypsum will quickly release crystal water into semihydrous gypsum and then further change into anhydrous gypsum, which can release 560kg of water. Water can absorb a lot of heat in the evaporation process. It can effectively prevent the rapid rise of room temperature and improve the chances of escape.
Third, green environmental protection. Gypsum after harmless treatment, does not contain soluble pollutants, the use of inorganic gel materials, additives are environmental protection products, made of light plaster gypsum does not release formaldehyde and other harmful substances, green environmental protection, safety and rest assured.
Fourth, heat insulation, energy saving, sound absorption, impact resistance. The thermal conductivity of plastering plaster is 0.17W /(M.K), so the thermal conductivity of plastering plaster is 20% of the traditional cement plastering mortar, which has a certain thermal insulation effect and can reduce the energy consumption of buildings. Plastering gesso is in condense process, the interior produces tiny gap, because this can attenuate sound pressure, can prevent sound energy to project again, can convert sound energy into heat energy, have good sound insulation performance so. Due to the porous structure after condensation, it can effectively absorb impact energy, so it will not crack and fall off when subjected to impact.
Plastering gypsum with cellulose ether mainly has the following characteristics:
1, excellent construction: scraping easy, smooth, can be a molding, with plasticity.
2, improve plaster mortar coating rate: compared with similar cellulose ether, coating rate increased significantly.
3, excellent anti-droop performance: thick layer scraping single construction does not flow hanging, more than two times (more than 3cm) scraping does not droop, excellent plasticity.
4, excellent water retention rate: prolong the operation time of gypsum base, improve the weather resistance of gypsum base, increase the bonding strength of gypsum base and base, excellent wet bonding performance, reduce the ground ash.
5, strong compatibility: suitable for all kinds of gypsum base, reduce the aging time of gypsum, reduce the drying shrinkage rate, the wall is not easy to empty drum, cracking.
6, application field and amount: light bottom plaster gypsum, recommended dosage 0.18%- 0.25%.
Plastering gypsum with cellulose ether is made of high quality refined cotton by etherification reaction, non-ionic cellulose ether, stable physical properties, will not produce chemical reaction with other raw materials and produce some harmful substances, environmentally friendly, no impact on human health, in plastering gypsum is a kind of green energy saving additives, KIMA has always been the concept of green environmental protection and energy conservation into the company’s products and management, we advocate sustainable development, in response to the national call, green mountains are gold and silver mountains, KIMA will use better cellulose ether products to help the world to create green environmental protection indoor wall plastering materials.
Post time: Feb-18-2022