2Hydroxyethyl MethacrylateHEMA
Chemical Formula: CH2=C(CH3)COOCH2CH2OH
Molecular Weight: 130
Standard Applied: Q/HG041003-2004
CAS: 868-77-9
Product Application: with vinyl double bond within the molecule it can copolymerize with other momomers to produce copolymers with hydroxy group in the side chain.And these structures are readily undergo across-linking reaction.The most important application of HEMA is production of coatings. It copolymerizes with monoers such as styrene,methyl methacrylate,butyl acrylate and methacrylic acid and etc. produce coatings and primers for auto applications.Also in application of UV or EB radiation polymerizations,printing pads,printing oil,gel,contact lens ,and hearing aid equipment coatings.
Charcateristics: the resinss property can be raised obviously by using a small quantity of this function monemer.
Typical Physical-chemical Properties
Items | Super grade | Normal grade | Analytical Measure |
Purity ≥ wt% | 98.50 | 97.50 | Gas Chrom |
Colour ≤ | 10 | 30 | Colorimetry |
Free Acid (as acrylic acid) ≤wt% | 0.50 | 1.00 | Titration |
Water content ≤ wt% | 0.30 | 0.30 | Kari-Fischer |
Inhibitor(MEHQ),wt,ppm | 200 300 | 200 300 | Colorimetry |
Gravity:1.069-1.075; Flashing Point:110°C(open cup),96°C(closed cup);Explosion limit (in air):3.3% vol.-
*Purity=100-(water content% + acidity%+EGDMA%)
Package:200kg/barrel(PVDF pail)
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