Cellulose ether is a kind of synthetic macromolecule polymer made from natural cellulose as raw material and chemically modified. Cellulose ether A derivative of natural cellulose. Cellulose ethers are produced differently from synthetic polymers. The most basic material is cellulose, a natural polymer compound. Because of the special structure of natural cellulose, cellulose itself has no ability to react with etherification agent. But after the treatment of swelling agent, strong in the molecular chain and the intra chain hydrogen bond was destroyed, the activity of hydroxyl release into a reaction capability of alkali cellulose, after etherification agent OH reaction medium into OR medium to obtain cellulose ether.....

In many high-rise building exterior wall construction, often waterproof mortar layer cracks, cracks, hollowing, shedding and other quality problems caused by improper operation. Among many problems, leakage of exterior wall is one of the most urgent problems in building construction. A variety of new wall materials (such as concrete hollow brick, aerated concrete block) is widely used, but new wall materials are common anti permeability ability is poor, so we must take effective measures to prevent the building wall leakage. The following points are easy to overlook in the construction of waterproof mortar:....

The addition of cellulose ether in premixed mortar is very low, but it can significantly improve the performance of wet mortar. It is a major additive which influences the workability of mortar. Reasonable choice of different varieties, different viscosity, different particle size, different degree of viscosity and amount of cellulose ether, the performance of dry mortar improved and produced a positive impact. At present, many masonry and plastering mortar water retention performance is not good, a little rest for a few minutes there will be water separation.....

Traditional mortar easy cracking and bleeding, the performance is not up to the requirements, environmental pollution and other issues, will be gradually replaced by dry mixed mortar. Dry mixed mortar, also known as pre temperature (dry), dry powder mortar, dry mixing, dry mortar, dry mortar, semi-finished products, does not contain cellulose ether mixed mortar mixing water with excellent thickening, emulsifying, suspension, performance film, protective colloid, keep moisture, adhesive, is dry mixed mortar admixture in the important.....

1, product overview Cellulose ether is a kind of important water-soluble polymer, is a general term for a series of products with natural cellulose after alkalization and etherification of cellulose ether into ionic and nonionic two types of products, products are mainly ionic carboxymethyl cellulose (CMC), non-ionic products including the methyl cellulose (MC), hydroxypropyl methyl cellulose (HPMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC) etc......

Our company showed our cellulose ethers, cellulose fiber products and had extensive exchanges with foreign enterprises , We enhance the company's regional reputation, establishing a good atmosphere of mutual trust and cooperation, and laid a foundation for the development of the market.....

Held on 13-15 October 2015 in Sao Paulo,Brazil, The Brazil Coatings Show (ABRAFATI) hosted by the Brazilian coating production Association is one of South America's largest coatings industry trade fairs. And Longou Chemical will attend it.....

In order to enrich the cultural amateur life of staffs and relieve employee stress, Our Longou company organized the four-day trip to Quzhou & Mount Sanqing on April 23, 2015.....

2014.12.3-5 of CHINACOAT2014 Guangzhou International Coatings Show is China and the Asia Pacific region's annual industry event, during this exhibition, our Longou company received hundreds of domestic and foreign customers, exhibited Cellulose Ethers, Cellulose Fibers specialty products which have got customers' praise, and determined cooperation. Longou company will be close to the market, continuous innovation to meet customer needs, to create maximum value for each client. Here , we are grateful for the strong support of new and old customers, we would like to work together, to go further and better in this industry.....

In order to enrich the staff’s amateur cultural life and to ease staff ‘s pressure , let staff spare time to enjoy nature, at 15:00 on November 14, 2014, under the leadership of Mr. Wang, we drove to Dongshan in Suzhou city.....

Longou Chemical Company, under the leadership of general manager, attended the Middle East Coating Show from March 10-12 2014. During the exhibition, we mainly showed our chemical products: Cellulose Ether(HPMC, HEMC, HEC, CMC, MC), Cellulose Fiber, Redispersible Polymer Powder, Superplasticizer, etc......

With the recovery and the demand of international market, Longou Chemcial company will attend The Middle East Coatings Show 2014.....

From Nov. 20~22 2013, Longou attended the International Mortar Expo in Shanghai New International Exhibition Center.....

Congratulations on Longou Chemical securing the Supplier Assessment Certificate of Alibaba International Platform TUV certificate.....

Warm celebration for the establishment of Longou India Office....

From Nov. 20~22, Longou Chemical will attend the The 9th China (Shanghai) International Dry-Mixed Mortar Technology and Products Expo 2013. ....

2pm on May 17 2013, total of 20 employees in Longou Chemical Group, under the leadership of General Mangaer Mr. Andy Wang, took bus to Quzhou city and began a 3-day impressive trip.....

Mortar is the main construction raw material. With the development of economy, population growth, people’s higher requirements for environmental protection, so to realize the commoditization of mortar is an important mark when the construction industry has developed to a certain degree. The commoditization of mortar mainly use the concentration and fixed point mixing and bagged mixing mortar, namely dry powder mortar two forms.....

Re-dispersible Polymer has the same effect as primary dispersion, i.e., bonding pigments and fillers during drying or curing to improve their adhesive strength to organic or inorganic substrates. Due to the water soluble protective colloid, so water retention is improved as well, it is also an important advantage in the hydraulic binder modification . This hydraulic binder (such as: cement) needs right amount of water to form solidification. If this binder is very thin, water will be absorbed by substrate or evaporated and removed, resulting in not enough water to hydrate and not enough strength.....

HPMC can play the functions of thickening, water retention, construction in putty powder.....

Some of Wood Fiber functions such as: thickening, adhesion, water retention, etc. similar to cellulose, but its unique water conductivity can make high molecular polymer mortar a full even water hydration, increasing the adhesive strength and strength uniformity of the high molecular mortar surface, preventing the cracking phenomenon as a result of uneven water hydration effectively. It has become an indispensible additive for high molecular polymer mortar(monocompoent, bi-component). ....

For construction purpose, Hydroxypropyl Methyl Cellulose can prevent the water from permeating the wall. Proper amount of water lingers in the mortar, enabling the cement to have a longer time to conduct hydration, water retention is proportional to the viscosity of cellulose ether solution in mortar, higher viscosity; better water retention. Once the water molecule increased, water retention falls. Due to for the same amount construction purpose HPMC solution, more water means the decrease of viscosity. The enhancement of water retention ability will result in the prolongation of curing time of the construction mortar.....

Re-dispersible Polymer, has a remarkable effect in the cement dry-mixed mortar. It can increase the adhesive strength and cohesion strength. It can increase the elasticity, bending strength of the material. Increasing the weather resistance, durability and abrasion performance. It can increasing the hydrophobic ability, reducing water absorption rate. It can improve workability, reducing shrinkage rate of the material. It can prevent crack effectively. ....