新一代溶剂（New generation solvent）.docVIP

新一代溶剂（New generation solvent） New generation solvent Although most industrial solvents used today are less harmful to health and the environment, some products are still subject to regulatory restrictions due to their toxicity. Also, because the solvent evaporates, many solvents react in the atmosphere to produce tropospheric ozone, which is regulated as volatile organic compounds (VOC). On the other hand, chlorofluorocarbons are also shown to deplete stratospheric ozone and contribute to global warming due to their long life in the air. This paper introduces two kinds of solvents: PMP (1, 2-propylene glycol methyl ether propionate) and TBAcTM (tert-butyl acetate). Development of PMP, to replace the more harmful EEA (glycol ether acetate), and the development is used to replace some of the TBAc amount of ozone formation may be high solvent, including solvent toluene, xylene, acetone, and other esters, as shown in figure 1. PMP and PBAc have been tested in detail in some coatings and ink applications. This article will illustrate two kinds of paint formulas. The evaporation rate PMP evaporation is slow and is a good substitute for EEA and other high distillates. TBAc, on the other hand, is an evaporative solvent that can be substituted for fast and medium-speed volatile solvents such as toluene, MEK (MEK) and butyl acetate (nBuAc). It would be wise to consider the entire solvent mixing system instead of simply substituting one solvent for another. And shall be for the coating that USES a new solvent system itself, the drying time are measured, sometimes because the interactions between the solvent and resin solvent from paint or ink release in the product. Dissolve performance Solubility is another important consideration when choosing a solvent. It is difficult to predict or model the ability to dissolve, but there are some general principles that are expected to be valuable, such as similar solubility and the solubility parameters of Charles Hansen. However, the b