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The influencing factor of speed of solidify of UV solidify coating

From;  Author:Stand originally


3.2 get together beforehand the content influence to solidify speed

Generally speaking, get together beforehand content photograph is old to molecular quality, solidify rate is rapid, different get together beforehand content, solidify speed is different also. The solidify rate of not saturated polyester is the slowest, annulus oxygen is acrylic the solidify rate of ester is the rapiddest. Divide this beyond, in initator same situation falls, speed of different oligomer solidify is different also, when if be being used,carrying hydrogen initator, polyurethane kind the solidify speed of oligomer relatively the solidify speed of other oligomer wants fast.

3.3 get together beforehand the research direction of content

Common oligomer viscosity is taller, if annulus oxygen is acrylic ester kind viscosity is bigger, many thinner should be added when using, such solidify function to coating can bring other influence again, it is so in the use process of oligomer, general annulus oxygen kind with polyurethane kind assemble in content to mix use, can overcome a series of inadequacy already so, can achieve higher solidify rate again.

Another kind of settlement way is the oligomer that develops low viscosity, this research potential is tremendous, because it can be one-time,solve several problems, if allow an architect to reduce the integral dosage of monomer, will potential harmful material content falls lowermost level, can replace the attenuant action of monomer, reduce the contractive phenomenon in solidify process, conduce to become film finally [23] , can raise solidify rate again at the same time.

4 dye

The 4.1 dye influence to solidify speed

In UV solidify paint, dye is the indispensable raw material in producing a course, once solidify system is medium,contain the dye of some kind of color however, the solidify speed of whole solidify system is about to drop. The author understands from inside many document, result of this kind of influence is common by the following two kinds of elements are caused. One of, as a result of painty affiliation, make the diaphaneity of coating drops, thereby deepness of ultraviolet light transmission is affected, accordingly solidify speed is decelerated [24] . Secondly, painty itself is absorbed somewhat to ultraviolet light, of color also differ to the absorptivity of ultraviolet light.

4, the influence of 1.1 painty color

The dye of different color is different to smooth choice absorbency, generally speaking, arrive from red purple, smaller and smaller to the absorptivity of ultraviolet light, because this is below the circumstance with total changeless energy of ultraviolet light radiate, the energy that initator gets is much, cause efficiency to greaten, solidify rate becomes fast.

4.1.2 painty pH indicator are affected

Reduce as painty pH indicator, painty particle is reduced to the absorptivity of ultraviolet light, in ultraviolet light radiate consequently the circumstance with total changeless energy falls, the energy that initator gets is much, cause efficiency to greaten, solidify rate becomes fast.
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