PAM powder (non-ion) Scope

PAM powder (non-ion) used in the textile, printing and dyeing industry. PAM powder (non-ion)  as a fabric treatment sizing agents, finishing agents, and can generate supple, wrinkle-free, anti-fungal protection layer. Use of its hygroscopic characteristics, can reduce the spin-off sheets when spinning rate. PAM powder (non-ion) for the post-treatment agent to prevent static and flame retardant fabric. When used as auxiliaries, to make the product attached to the fastness PAM powder (non-ion) big, bright and high, but also as bleaching of non-silicone polymer stabilizers. 3, for the petroleum industry, oil, drilling mud, waste mud treatment, to prevent water channeling, reduce friction, improve oil recovery, EOR has been widely used
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What is Polyacrylamide

Polyacrylamide is a synthetic water-soluble polymer made from monomers of acrylamide. Polyacrylamide binds soil particles together. Once soil particles suspended in water are bound together by Polyacrylamide, they settle out, so water has a harder time washing them out of the field. Water -soluble polymers like Polyacrylamide have been known to benefit soil properties for a long time. Recently these polymers have gained renewed attention for their use in reducing irrigation-induced erosion, now that the cost of applying Polyacrylamide has become economically feasible. Other uses of polymers like Polyacrylamide include treatment of municipal water supplies, food packaging, adhesives, a boiler water additive, film former in the imprinting of soft-shell gelatin capsules, adjuvants in the manufacturing of paper and paperboard, and the list goes on and on.
In increasing water infiltration, the check furrows lost 37.5 percent of the water as runoff and 62.5 percent was infiltrated. Out of the total water applied treated with granular Polyacrylamide, 26.5 percent was lost as runoff and 73.3 percent of the water infiltrated into the soil. Out of the total water treated with liquid Polyacrylamide, 29.1 percent was lost as runoff and 70.8 percent of the water infiltrated. Granular Polyacrylamide used as a "patch" was effective to control the loss of sediment and increase water infiltration.
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colloidal silica's Functions and Strategies for Use

Key part of drainage-aid programs marketed by Eka Chemicals and Nalco; also capable of increasing the amount of cationic starch that can be retained as a dry-strength agent.
 The conventional procedure is to add the colloidal silica very late in the approach flow to a paper machine, typically just after a set of pressure screens. A drainage rate increase is expected only if the furnish already has been treated with a suitable high-mass cationic polymer such as cationic starch or cationic poly-acrylamide. The effect is most pronounced when the net amount of cationic additives is enough to render the system at least slightly cationic before the addition of the micro-particle. For this reason it can be helpful to treat highly anionic furnish with a highly cationic material such as alum, poly-aluminum chloride (PAC), polyamine, or polyethyleneimine (PEI).
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What is Benzyl chloroformate

Benzyl chloroformate is the benzyl ester of chloroformic acid. It is also known as benzyl chlorocarbonate and is an oily liquid whose color is anywhere from yellow to colorless. It is also known for its pungent odor. When heated, benzyl chloroformate decomposes into phosgene and if it comes in contact with water it produces toxic, corrosive fumes.
Benzyl chloroformate is used in organic synthesis for the introduction of the carboxybenzyl (Cbz or Z) protecting group for amines:Read more：http://www.chemical-chem.com/Phosgenation-chemicals/Benzyl-chloroformate/

How is polyacrylamide applied and what forms does it come in for application

 polyacrylamide 's three most common forms are dry granules, solid blocks (cubes), and emulsified liquids.The application method of polyacrylamide  chosen depends on the form of   polyacrylamideselected. The use of dry granular  polyacrylamide into irrigation water is facilitated by the use of an augured metering system and excellent mixing and thorough dissolving before the   polyacrylamidereaches the irrigated furrows.   polyacrylamideblocks ( or cubes) are usually placed in wire baskets that need to be secured to the edge of the ditch to avoid washing of the blocks down the ditch. Liquid   polyacrylamidecan be metered directly from the container into the irrigation ditch, directly into the furrow, or through a pipe line or injector pump.Read more：http://www.chemical-chem.com/Papermaking-chemicals/Polyscrylamide/

Types of wet strength agent and development

Long time ago, people used to make sheepskin sulfuric acid treatment of the base paper, waterproof paint, plastic film or metal foil to paint, paper covering on the surface, or gelatin, animal glue surface sizing of paper, then tape the facilities and bauxite, formaldehyde or glyoxal exposure at high temperatures to form a protective layer. These methods are quite expensive, the production efficiency is low, and this method itself can only play the role of anti-water, and not substantially improve the paper wet strength agent . People first discovered in 1935 with the urea-formaldehyde resin (referred to as UF resin) as a surface sizing agent, after conducting heat treatment can have some wet strength paper. Then can be developed directly into the cytoplasm of the UF resin, but because of their negative charge and is not easy to combine with a load of fiber, low retention, poor  wet strength agent effect in 1942, developed a melamine-formaldehyde resin (referred to as the MF resin) It can be added directly in the cytoplasm, the paper added excitement after drying can get a goodwet strength agent . In 1946, UF resin-modified cationic successful trial, the resin retention rate and efficiency of wet strength agent  paper with MF is similar, but the price is low, wet strength agent  paper for the mass production created the conditions. The use of urea-formaldehyde resins and melamine resins as wet strength agent after not only simplify the process, and the wet strength agent  can be obtained up to 50%. At the same time improve the wet strength agent, but also to make some dry paper strength index (such as breaking length, bursting strength and folding, etc.) and the degree of sizing a corresponding increase.
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The performance Beer colloidal silica

Beer is an amorphous colloidal silica microporous structure of the solid powder, diameter 8-16nm, chemical formula mSiO2 · nH2O, Beer  colloidal silica insoluble in water and any solvent, in addition to caustic alkali and hydrofluoric acid, but not with any acid, alkali, salt from the reaction, non-toxic, odorless, nonflammable, non-explosive, with a strong heat, cold stability, harmless to human body.Beer  colloidal silica  mainly for the beer industry. 1 beer silica gel with a large specific surface area and porous structure of numerous appropriate, may cause beer turbid within a few minutes of protein adsorption, removed by filtration, thus prolonging beer storage period by 180-240 days, to prevent beer from being cold muddy. (2) does not affect the beer foam or taste. Beer physical and chemical nature of the  colloidal silicait has no effect on beer foam and taste, and practice has proved that beer colloidal silica is the world's beer industry recognized the safest beer stabilizer. 3 to improve to help filter effect. Beercolloidal silica  is chemically stable, non-beer soluble substances, the surface area and porous structure are much better than diatomaceous earth, is a good filter aid, diatomaceous earth filter aid to make beer brighter and more clear.Read more：http://www.chemical-chem.com/Papermaking-chemicals/Colloidal-Silica/