There are different views on the interaction between polyvinyl acetate and cement in aqueous solution. Some scholars think that  the modified cement mortar with polyvinyl acetate itself forms polymer film inside and the holes inside mortar are sealed or covered, so its impermeability is improved. Foreign scholars think that the interaction between polymer and Ca(OH)2.. read more →

In dry mixed mortar products, due to the addition of cellulose ether(HPMC/ Hydroxypropyl Methylcellulose), a certain amount of small, uniform and stable air bubbles will be introduced into the fresh plastering mortar. Due to the bubble ball effect, the mortar has good construction properties- reduce the shrinkage of mortar and crack and improve the output rate of mortar. Depending on the strength and consistency of.. read more →

06 Nov 2019
November 6, 2019

Redispersible Polymer Powder (RDP)

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Redispersible Polymer Powder as one of the most important additives in dry-mixed mortar has been widely used in the construction field. Its invention and appearance greatly promoted the popularization and application of dry-mixed mortar.     At present the most widely used RD powders are vinyl acetate vinyle-ethylen (VCAE) and vinyl acetate-tert-vinyle carbonate (VEOVA). To improve the.. read more →

29 Oct 2019
October 29, 2019

Properties of Cellulose Ether in Mortar

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The most important characteristic of cellulose ether (Hydroxypropyl Methylcellulose(HPMC) is its water retaining capacity in building materials. As water also plays a role of lubrication and mixing in the inorganic composition, sufficient moisture can meet the requirement of construction. Thus thin layer of sand mortar can be easy to card or repeatedly plaster to be leveled. In addition, due.. read more →

29 Aug 2019
August 29, 2019

Cellulose ethers of Book

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Cellulose Derivatives as Thermoresponsive Polymer: An Overview Evaluation of Cellulose Ethers for Conservation Evaluation of Thermal Gelation behavior of different Cellulose Ether Polymers by Rheology read more →

Anti-dispersion is an important technical indicator to measure the quality of anti-dispersion agents. Hydroxypropyl Methylcellulose(HPMC) is a water-soluble polymer compound, also known as water-soluble resin or water-soluble polymer, which can increase the viscosity of mixed water by increasing the consistency of the mixture. It is a hydrophilic polymer substance that can form a solution or dispersion after dissolving.. read more →

Effect on fresh mortar Extend the work time and improve water retention performance to ensure the hydration of cement and improve workability; Effect on hardened mortar Good adhesion to polystyrene board and other substrates, excellent flexibility and impact resistance, excellent water vapor transmission, good water repellency and weatherability. Traditional bonding materials has a great hidden.. read more →

The use of the new VINNAPAS redispersible polymer powder modified dry powder tile adhesive has a remarkable technical and economic effect. China’s building ceramics production ranks first in the world, with an annual output of 2 billion square meters. If 5% of the application of thin-coated tile adhesive, according to the need for tile rubber 4kg.. read more →

The Composition of RDP The RDP is usually a white powder but there are a few other colors. The components of Redispersible Polymer Powder include: Polymer Resin: in the core part of RDP, also the main component of Redispersible Polymer Powder, such as polyvinyl acetate/hexane resin; Additive: It acts as a modified resin together with the.. read more →

Take the starch ether- OPAGELTM and CASUCOLTM manufactured by AVEBE company as an example and apply it in mortar products for construction, to study the properties of starch ether in mortar. We have- Starch ether used in gypsum – based products The demand of gypsum plaster in dry mixed mortar products is huge, whether plastering by hand or machine,.. read more →