The initiator molecules have a certain ability to absorb light in the ultraviolet region (250-400 nm) or in the visible region (400 ~ 800 nm). After direct or indirect absorption of light energy, the initiator molecules transition from the ground state to the excited singlet state. In the excited singlet or triplet state after a single molecule or bimolecular chemistry, resulting in monomer polymerization can lead to active debris, these active fragments can be free radicals, cations, anions and so on. According to the mechanism of triggering, the photoinitiator can
Such as: chlorinated solvents (trichloroethane, methyl chloride, etc.), glycol ethers, ethanol ether Acetic acid ester solvents and the like. The DBE product is the best alternative to these solvents, DBE products can also fully meet the increasing demand for VOC.
MDBE (DuPont DBE) is dibasic acid ester mixtures, also known as dibasic esters. It’s a low toxicity, slightly aromatic, biodegradable environmental-friendly high boiling solvent, which has been widely used in coating industries and other application fields.
Our MDBE series contain Dimethyl succinate, Dimethyl glutarate, Dimethyl adipate and their different proportions of mixtures.
Bismuth Vanadate Yellow is an inorganic lead free yellow pigment recommended in applications where high performance is required, due to it’s good opacity and tinting strength. This BV pigment does not contain any heavy metal elements that harmful to human body, in line with the latest EU and U.S. laws and regulations. It’s suitable alternatives to chrome yellow. The annual market demand of BV pigment （Bismuth Vanadate Yellow）is around 6000 tons at the moment. In the following three years, the demand for environmental friendly pigments will rapidly grow.