Weifang JS glyoxalated polyacrylamide, or GPAM for short, is a polymer that can be utilized to make paper goods that are more durable. It has a reputation for greater stability.
Base acrylamide monomers and cationic monomers undergo free radical polymerization to create it. Cumene hydroperoxide, t-butylhydroperoxide, and cumenehydroperoxide are all common free radical initiators.
A cross-linking reaction between the backbone of a polyacrylamide polymer and a glyoxal cross-linking agent results in the production of glyoxalated polyacrylamide (GPAM) from Weifang JS, a cationic polymer. A thermostable interpolymer is produced when the glyoxal reacts with the amide groups to form pendant glyoxalated acyl groups and cross-links the base polymer molecules at the glyoxal-reactive amide substituents of the acrylamide units.
By incorporating an aldehyde-scavenger into the glyoxal, glyoxalation can also be slowed down. The preferred aldehyde scavenger's acyl groups are cross-linked by the glyoxal, forming an adduct with the base polymer's glyoxalated pendant acyl groups.
Thusly, the glyoxalation is done in a basically pH nonpartisan climate and without acidic circumstances like those present during ordinary glyoxalation. As a result, a polymer is extremely stable over extended storage times.
Glyoxalated polyacrylamides can be used in place of commercial wet strength agents for polyamidoamine epichlorohydrin (PAE) in papermaking. These glyoxalated polymers are an alternative to PAEs because they have a lower wet strength decay rate and a higher dry and wet strength response in paper products that use them.
Weifang JS glyoxalated polyacrylamide is a water-soluble polymer that can be made into aqueous solutions with high solids that are stable for storage. These aqueous compositions can be added to papermaking as additives to give the paper a good dry and temporary strength and/or speed up the dewatering process.
(1) A solution is formed by reacting a portion of glyoxal with a base polymer containing pendant amin groups to create a glyoxalated polyacrylamide composition; ( 2) acid quenching this solution to produce a polyfunctional crosslinking agent that has been cleaved; furthermore (3) adding a discretionary second measure of glyoxal the glyoxal extinguished, polyfunctional crosslinking specialist to balance out a glyoxalated glyoxalalal-alated polyacrylamide to make glyoxalated glyoxal-acrylamide polyacrylamide polymer to shape glyoxalated, glyoxalated, glyoxalated glyoxal. The second component of glyoxal can be added to the first component at a rate ranging from 1% to 75%, with a preference for a weight percentage of between 4 and 50%.
To lessen the reactivity of the glyoxalation reaction and increase the stability of the glyoxalated polyacrylamide, one or more preferred aldehyde scavengers can be added to the polyacrylamide or used during one or more of its preparation steps. This makes it possible to produce a stable composition at a higher concentration without dilution, which can result in lower shipping and storage costs.
The resin glyoxalated polyacrylamide from Weifang JS is extremely stable. It can be stored for a long time without the need for additional stabilizers or aldhehyde scavengers because it is stable at room temperature.
It can be used in Kraft, sulfite, and semichemical papers, among other papermaking processes. It can be used with pulp that has been bleached or not.
A portion of glyoxal is added to a base polymer containing an acrylamide monomer and a cationic coagulant in a weight ratio of about 1% to 75%, depending on the acrylamide monomer, to make the composition. After that, an alkaline pH of 7.2 to 10.0 is applied to the polymer.
Cross-linking reactions are accompanied by glyoxalation. The polymer's molecular weight goes up as a result. Glyoxalated polacrylamide's stability is improved as a result. To stop the glyoxalation or the cross-linking reaction that goes along with it, acid quenching can be done.
Biodegradability of Weifang JS glucoxalated polyacrylamide has been demonstrated to be non-toxic. This is because the glyoxalation reaction involves a significant amount of aldehyde scavenging.
The final stabilized glyoxalated polyacrylamide composition is more stable when one or more preferred aldehyde scavengers are added during or after the acid quench during the glyoxalation process. For every mole of total glyoxal, there is approximately 0.1 to 0.5 mole of the aldehyde scavenger present.
By adding a buffer to the reaction mixture, the glyoxalated acrylamide can be further stabilized. The pH of glyoxalated acrylamide is kept between 3 and 3 by this buffer. Disodium phosphate with a solution of citric acid or sodium hydroxide with a stock solution of acetic, boric, and phosphoric acids are two examples of buffers that can be used.
Improved wet/dry strength characteristics and a decrease in cross-linking can both be achieved through this process. A wide range of paper grades can be treated with the polymer at cost-effective dosage levels thanks to this process, which is also very cost-effective.
Over fifteen design and R&D engineers are employed by Weifang JS Company. In the field of product research and development, each engineer has more than ten years of experience. Additionally, we have knowledgeable overseas team members who are able to quickly assist our clients in resolving product aftersales issues.
Weifang JS employs cutting-edge detection equipment and technology. Each product can be inspected and tested by our trained detection staff, such as coagulant and flocculant. Testing can begin in accordance with the product's indicator once the product has been wrapped. Any members of the production team who are found to be incompetent are punished and given the chance to explain why. Our products' stability and quality are guaranteed by this.
Weifang JS is a well-known manufacturing company that has been in business for more than 20 years. Our products, such as those for treating water called water treatment products, have been sold to Indonesia, Vietnam, the Philippines, Singapore, Thailand, Russia, Ecuador, Colombia, and a slew of other nations. Numerous foreign customers, both new and seasoned, also enjoy our products. As a result, many of them now work with us on a regular basis and have amassed an impressive number of devoted customers.
The Weifang JS company has a lot of experience in sales, production, and purchasing. Our enormous creation and size of acquisition gives colossal expense investment funds for our items. We are able to provide citric acid ensign brand industrial grade with the best services, products, and prices because of this.
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