Explanation

1. It is a low viscosity material that can reduce viscosity, improve workability and wettability and extend service life when added to the adhesive system. It can be divided into two categories: active and inert diluents. Active molecules contain active reaction groups, which can participate in the curing reaction and have the effect of increasing mother of pearl. They can also be used as solvents to reduce the initial viscosity of adhesive, such as propylene oxide butyl ether. Most inert solvents are inert solvents, which do not participate in the curing reaction and only act as diluents. Most of them are organic solvents, such as ethanol, acetone, ethyl acetate, toluene, dimethylamide, etc. 2. A kind of low viscosity liquid with good miscibility with resin added to reduce the viscosity of the thermosetting resin system and improve its process performance. It can be divided into inactive and active. Inactive group does not contain active group. It is only physically mixed with resin system and does not participate in crosslinking reaction of resin system. It should be completely volatilized before curing or during curing, otherwise it will lead to pores and other defects of assimilation products, affecting product performance; The activity contains active groups, which can participate in the assimilation reaction of resin system. Entering the crosslinking network of curing structure can not only improve the processability, but also improve the percentage elongation after fracture of curing products to a certain extent. For example, the commonly used activities of epoxy resin systems include propylene oxide butyl ether, diglycidyl ether, glycerol epoxy, ethylene glycol diglycidyl ether, etc. 3. A lithography process additive, also known as thinner. It can be used to remove residual photoresistance at the edge of glass substrate after photoresistance coating. Can be used to clean coating machine nozzles, etc. It can also be used to dilute photoresistance and reduce viscosity. diluents is generally composed of one or several high-purity organic solvents. The production process generally includes solvent purification, mixing, filtration, and other processes. Commonly used organic solvents include propylene glycol monomethyl ether, propylene glycol methyl ether acetate, butyl acetate, etc.

Classification