06 Jan 2020
January 6, 2020

Cellulosic Fiber

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A fiber is a cell which is a typical dead plant cell with two pointed ends, thick skin, and void in the middle. The fibers (cells) are characterized by being thin and long, with spindle-like ends, flexible, and have a certain binding force with each other after interweaving. The fiber cell is empty inside and surrounded by the cell wall which is composed.. read more →

Viscosity There are different types of viscometers used to measure the viscosity of a cellulose ether solution. The widely adopted viscometers are: HoppIer falling ball viscometer, Haake rotation Rheometer and Brookfield rotation viscometer. The viscometer commonly used in China is NDJ series. The viscometers adopted by different cellulose ether manufacturers are different in the market. With the same solution, testing in different viscometers,.. read more →

During the study of dry mixed mortar, more attention is paid on admixtures and fiber materials, while the roles of aggregate and filler are often ignored. The effect of reasonable combination of aggregates and fillers is often beyond the reach of admixtures. Reasonable gradation can save cost and improve the comprehensive performance of the product. Experiments show that the higher.. read more →

Cementing materials are substances with a certain mechanical strength, that can bind other bulk materials (such as sand and stones) or block materials (such as bricks and stones) as a whole during the process of gradually changing from a malleable slurry to a solid stone-like solid under physical and chemical action. The cementing material has a long history.. read more →

As a covering material for buildings, ceramic tiles are popular among people. In addition to providing decorative surfaces with aesthetic usage, ceramic tiles are also resistant to water, hard, hygienic and easy to clean. However, the problem of tile peeling, this is, the failure of the tile bonding system, is of more concern. From the.. read more →

Internal Coating/机内涂布 常规机内涂布纸种/General Internal Coating Papers: 1. 铜版纸 Copperplate Paper 2. 白卡纸 Ivory Board Paper 3. 涂布白板纸 Duplex Board Paper 4. 微涂双胶纸 Micro-coated Offset Paper 5. 涂布白面牛卡纸 Coated White Top Test Liner Conversion Coating/机外涂布 常规机外涂布纸种/General Conversion Coating Papers 6. 热敏纸 Thermal Paper 7. 无碳复写纸 Carbonless Paper 8. 热升华转印纸 Heat Sublimation Transfer Paper 9. 标签纸 Label.. read more →

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 →