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At or near the final stages of production, the material is treated with a chain extender. Typically, chain extenders are bifunctional, i.e., they have two functional groups, which can link together two polymers. Representative classes of chain extenders are diglycidyl ethers, diols, diamines, or dianhydrides. Chain extenders are often applied ...
1,6-Hexanediol can improve the hardness and flexibility of polyesters as it contains a fairly long hydrocarbon chain. In polyurethanes, it is used as a chain extender , and the resulting modified polyurethane has high resistance to hydrolysis as well as mechanical strength, but with a low glass transition temperature.
PMDA is used in PET bottle recycling as a chain extender. It increases the molecular weight of the polymer by linking-together alcohol and carboxylic acid groups formed by hydrolysis of the PET. This improves the rheological properties and overall quality of the recycled plastic. [5]
Nalco Water, an Ecolab Company, is an American supplier of water, energy and air improvement solutions and services for industrial and institutional markets, owned by Ecolab. The company sells various products and services designed to reduce energy, water and other natural resource consumption, enhance air quality , minimize environmental ...
Chloride cycle dealkalizers operate similar to sodium cycle cation water softeners. Like water softeners, dealkalizers contain ion-exchange resins that are regenerated with a concentrated salt solution - NaCl. In the case of a water softener, the cation exchange resin is exchanging sodium (the Na + ion of NaCl) for hardness minerals such as ...
Nov. 17—The Reading Area Water Authority has started to feel the pressure of the supply chain disruptions that have affected numerous business sectors. Executive Director Bill Murray told the ...
What reviewers say 💬. Over 8,500 owners rave about how well the M210 performs across a variety of flooring.. Pros 👍 "The capacity is large enough to handle a cleaning of our 1,000 square ...
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