Wacker developed high performance silicone surfactant for pulp production-Iota

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News > Dynamic industry > Wacker developed high performance silicone surfactant for pulp production

Wacker developed high performance silicone surfactant for pulp production

Wacker chemicals group, headquartered in Munich, has successfully developed a newcan significantly accelerate the pulp dehydration rate of organic silicone surfactants. The PULPSIL 968S products can be used as the active component for dehydrating agent toprepare the washing of pulp. The silicone products to accelerate the speed of hitherto unknown effect of dewatering of pulp washing process, greatly shorten the time required for. PULPSIL 968S has enriched the Wacker group in the field of paper and pulpproducts, can make the pulp production greatly save energy, save money.

PULPSIL 968S is based on a kind of surface active agent of polyether modified silicone oil. The water dispersible silicone oil with medium viscosity, its molecular structure wasobtained after the optimization, can make the surfactant hydrophilic, have a certain degree of at the same time, continue to maintain significant hydrophobic. This comparedwith other silicone surfactant hydrophobicity enhanced PULPSIL 968S has become aparticularly effective dewatering agent.

The hydrophobicity of this new product, but also in its cloud point is very low: according to DIN EN 1890 standard test process, its cloud point is 19 degrees Celsius, far lower than other organic silicone surfactants with a series of products. The new silicone surfactantsin the temperature above the cloud point, will no longer be dispersed in aqueous media,but a tiny drops of oil -- the rapid dehydration provides a prerequisite.

Generally, surface active agent in the fluid temperature is higher than the cloud point,can function as a dehydrating agent. The cloud point is very low, PULPSIL 968S can give full play to efficiency in the low temperature solution. However, the cloud point is very lowalso prepared with PULPSIL 968S which the product must be layered speed can not be too fast.

The pulp in the washing process often into the air, if you do not take appropriate measures, most of these gases will be tiny air bubbles in the form attached to the pulp fiber, hinder the fluid discharge. Processing aids such as PULPSIL 968S is an efficientwashing process of materials, because they can reduce the adhesion between the air and the fiber, but also can make the small bubbles into large bubbles, and then to thefiber slurry. Remove the gas formed in the channel can greatly speed up the drainagespeed, shorten washing time.

PULPSIL 968S is to provide the raw material for the Wacker type additives suppliersdeveloped specifically for for the pulp and paper industry. Silicone surfactants can makethe new manufacturers can make products according to the different needs of all-roundcounterpart of paper pulp production line. PULPSIL 968S and PULPSIL 955S, PULPSIL960S, dehydrating agent, usually combined with the use of fire and silicone defoamer.