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General
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KEYCURE 8028 is a versatile highly efficient Free Radical Type I solid photoinitiatwhich is used to initiate the UV polymerization of chemically unsaturated prepolymers (e.g.acrylates) in combination with mono-or multi-functional vinyl monomers.
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Chemical Structure
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2-Hydroxy-1-[4-[4-(2-hydroxy-2-methylpropanoyl)phenoxy]phenyl]-2-meth-yl-1-propanone
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Molecular weight
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: 342.39
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CAS No.
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: 71868-15-0
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Physical Properties
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Appearance
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: off white to slight yellow powder
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Purity (%)
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: ≥98.0
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Melting Point (℃)
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: 94-98
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Absorption (nm)
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: 275
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Applications
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KEYCURE 8028 may be used alone in combination with other suitable photoinitiators (such as Chemacure PI-184 PI 6022) fUV curable inks varnishes fapplications on paper, wood, metal plastic materials. Its high absorbance makes it especially suitable fUV curable inks pigmented coatings.
KEYCURE 8028 is particularly indicated fthe photopolymerisation of UV curable systems when high reactivity, low curing odour low yellowing are required.
KEYCURE 8028 recommended concentration: 0.1-7.0%
KEYCURE 8028 recommended applications:
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Varnish
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Adhesives
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Powder coatings
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inks
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Clear lacquers fwood, plastic, paper, metal, optical fibres
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Since your specific applications conditions of use are beyond KBC’s control, you must determine the suitability of the product the suggestions mentioned herein fyour specific applications
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UV Absorption Spectrum
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Storage Conditions
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KEYCURE 8028 should be stored in a dark, cool, dry place away from strong oxidizing agents. Keep product out of sunlight away from heat, sparks, open flame, other ignition sources. Keep containers tightly closed prevent contamination with foreign materials. Avoid dispersion of dust into air to reduce potential explosion hazard. Prevent electrostaticge formation during handling, transfer, processing use of this material by properly designing material handling processing equipment, bonding grounding all equipment providing an inert atmosphere.
The product is stable f2 years if stored iniginal, sealed containers under above-mentioned conditions.
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Safety & Handling
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KEYCURE 8028 should be handled in accordance with good industrial practice. Detailed information is provided in the Material Safety Data Sheet (MSDS).
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