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Shanghai UN Chemical Co.,Ltd

Room501,No.1,Lane 98 Bixiu,Minghang,Shanghai,China

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polyfunctional aziridine liquid crosslinker SaC-100

China

UN00001-00001

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china

-

25

-

-

500

-

crosslinker

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详情

Crosslinker SaC-100 is a 100% active, polyfunctional aziridine liquid crosslinker. Additional of 1-3% to water based acrylic emulsions or urethane dispersion produces a marked improvement in water, chemical, abrasion and humidity resistance and enhances adhesion to specific substrates. Crosslinker SaC-100 is room temperature reactive and therefore can be used under air and forced drying conditions. Typical properties Type polyfunctional aziridine crosslinker Appearance clear yellowish liquid Total solids (w/w %) >99 Viscosity Brookfield (25℃) 200mPa.s PH (25℃) 8-9 Density (20℃) 1.08kg/l Stability (20℃) 6 months Water tolerance (%) >100 Solubility complete in acetone, xylene, isopropanol n-butyl acetate, carbitol, butyl carbitol Recommendations for end-use - In water based parquet lacquers to improve water, alcohol, detergent, chemical and abrasion resistance. - In water based industrial wood-, plastic- and metal coatings to increase water, alcohol and block resistance. - In vinyl coatings to reduce plasticizer migration and improve stain resistance. - In water based concrete sealers to improve abrasion resistance. - Generally, to improve adhesion of water based systems to non-polar substrates. - In solvent based polymers to increase resistance properties. - In water based printing inks to improve water and detergent resistance. Formulating guidelines - Crosslinker SaC-100 is a tri-functional material that crosslinks polymers with reactive carboxyl functionality (equivalent weight is approx.166). - For many applications 0.6 equivalents of SaC-100 per carboxyl equivalent are sufficient to achieve optimum improvement in film properties. - However some systems may require the full stoichiometric equivalent of crosslinker. - Typical addition levels of SaC-100 necessary to fully crosslink acrylic emulsions and urethane dispersions are 2% and 3%respectively(calculated on wet products). - Crosslinker SaC-100 should be added to lacquers, paints or inks prior to use and due to its excellent water miscibility it can be stirred in by hand. - The best method of addition is by using a 1:1 premix of SaC-100 and water. - In water bome formulations, SaC-100 will slowly hydrolyse and blends should therefore be used within 3-5 days after preparation. The hydrolised products have no adverse effects on the emulsions nor on the dried films, and additional crosslinker may be added to restore reactivity. - Solvent based systems modified by the addition of SaC-100 must be used within 5 days because they tend to thicken and may gel within 2 weeks. Handling Care must be taken to avoid any contact with the skin and eyes. When used in spray applications, particular care must be taken to avoid oral and/or nasal ingestion by wearing a suitable respirator. When handling SaC-100 it is desireable to prevent inhalation of vapours by proper ventilation or respirator use. See our Material Safety Data Sheet for specific information. Storage Store in a cool, dry, dark place. If stored under conditions of excessive heat for extended periods the material may discolour, deteriorate and gel.

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联系人:Mr. Shu li

公司名称:Shanghai UN Chemical Co.,Ltd

办公地址:Room501,No.1,Lane 98 Bixiu, Minghang, Shanghai, China,201100

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