Ditrimethylolpropane
tetraacrylate(Di-TMPTA) is synthesized by direct esterification method with
ditrimethylolpropane(Di-TMP) and acrylic acid coupled with silicotungstic acid
supported on activated carbon acting as a catalyst. The influences of acid,
amount of catalyst used in the process, reaction time, reaction temperature of
esterification are considered during manufacture of Ditrimethylolpropane
tetraacrylate(Di-TMPTA). It is an orthogonal experiment and Di-TMPTA is characterized
by Fourier transform infrared spectroscopy. It was observed that rate of
esterification is at 96.2% at 0.9% catalyst consumption with five hours of
reaction time at 82 ℃ reaction temperature.
According
to the study “Asia
Di(trimethylolpropane) Tetraacrylate (Di-TMPTTA) Industry Situation and
Prospects Research Report”, Di-TMPTTA is a multifunctional acrylic
monomer which can be polymerised by free radicals and is designed for use in
ultraviolet and electron beam curing applications. It is a tetrafunctional
monomer offering fast cure response and a high crosslink density upon curing.
The physical and chemical properties of Di-TMPTTA are very special. It is a
non-flammable liquid with very low volatility, slightly soluble in water,
colourless to pale yellow with odour that of acrylic ester, non-flammable upon
ignition, flash point is greater than 135°C at 1013 hPa, pressure. Di-TMPTTA is
irritating to the eyes due to acute toxicity, causes eye irritation or
corrosion. The major environmental effects of Di-TMPTTA are it is not readily
biodegradable and is moderately hydrolysed at a pH of 7-9. If Di-TMPTTA is let
into oceans or lakes or rivers, it is toxic to aquatic organisms. Di-TMPTTA is
not readily biodegradable due to low bioaccumulation potential.
Safety
showers, eye-wash stations, eye/face protection, safety glasses with
side-shields, long sleeved clothing, nitrile rubber gloves, respiratory
equipments are a few safety measures provided for those who are exposed in the
Di-TMPTTA manufacturing facility. Various Di-TMPTTA industrial operations are
maintenance, sampling, testing, or other procedures. It was observed that there
is no direct use of Di-TMPTTA in any of the applications because is always used
in a combination. It is essential to take proper precautions to avoid Di-TMPTTA
to contaminate ground water system and all the industrial effluent released
should be directed to waste water treatment plant for further treatment.
Excessive exposure to DI-TMPTTA can cause serious eye irritation, highly toxic
to aquatic life with long lasting effects, may be harmful if swallowed.
Geographically,
Asia Di (trimethylolpropane) Tetraacrylate (Di-TMPTTA) industry is spread
across China, India, Korea, Japan, Saudi Arabia and other regions. Industrial
grade and lubricating grade are the two types of Di (trimethylolpropane)
Tetraacrylate (Di-TMPTTA) available in Asia. The various applications of Di (trimethylolpropane)
Tetraacrylate (Di-TMPTTA) in Asian markets are in synthetic lubricants,
radiation curing coating, plastics and others industries. The leading players
within Asia Di (trimethylolpropane) Tetraacrylate (Di-TMPTTA) industry are
Sartomer, DSM, Jilin Petrochemical, Osaka Organic Chemical and KPX Green
Chemical.
With
increasing application of Di (trimethylolpropane) Tetraacrylate (Di-TMPTTA) in
various Asian industries, the demand for the chemical is increasing drastically
in polymerization. The chemical is hazardous, however, the increasing
consumption will witness a drastic growth in Asia Di(trimethylolpropane) Tetraacrylate
(Di-TMPTTA) industry over the next few years.
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