The first patent for SAP was issued in 1962 to the US Dept of Agriculture for use as water conservation in soil. The product used starch as the basis for the polymer and then grafted acrylamide and acrylonitrile monomers along the chain with crosslinking agents. Starch is made of repeating units of the sugar, glucose, and there are a lot of places to add things and to
crosslink these polymer chains so they become and absorbent. Click to read more!
The use of M2 Polymer Waste Lock, saves people from spending a lot on absorbing polymer. Learn more about the cost savings!
Water molecules are drawn into the network across a diffusion gradient – formed by the Sodium neutralization of the polymer backbone. Read More.
Chains of polyacrylate and/or polyacrylamide (or in the past, polyacrylonitrile) are converted into water-swellable hydrogels through the addition of small, multi-functional monomers. Read More.
The use of a superabsorbent polymer, such as Waste Lock® 770, in radioactive waste management is a cost effective way to stabilize liquid waste without significantly increasing the waste volume or weight. Click to read more!
For more information about what products are used in specific applications, read our M² Polymer Technologies’ Line Card .
Until the 1980’s, water absorbing materials were cellulosic or fiber-based products. Choices were tissue paper, cotton, sponge, and fluff pulp. The water retention capacity of these types of materials is only 20 times their weight – at most. Click to Read More!
In dealing with waste stabilization applications, people always ask “How much Waste Lock® do we need?” The answer depends on the amount of cations (i.e. saltiness) of the waste liquid. Cations increase the ability of water to conduct and electrical current. Hence, use of CONDUCTIVITY (and a Conductivity Meter) can give a good idea of the saltiness of a waste stream. Click to read more and to see our demo video!