The influence of 4.1.3 painty granuality
As painty particle greaten, 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.
The research direction of 4.2 dye
Absorb ultraviolet light in the light of painty itself, the solidify rate that lowers whole solidify system thereby this one characteristic, worker of a few research took a few step [25, 26] , although had certain effect, but still existing the place of a few inadequacy.
Worker of a few research puts forward to undertake exterior modified to dye [27] , reduce the dye absorption to ultraviolet light, had a test, result discovery, use surface modified is the following painty, the solidify rate of whole solidify system rises somewhat. The fundamental of painty surface modified is, in painty particle apparently deposit and appropriate material, with only member layer or bag of much element layer Fu is on the active area of painty element, make the exterior function of painty particle gets ameliorative thereby. The person such as the Gong Mei that be like moustache with oneself 2 acid, citric acid is modifier, undertake modified to dye, study the result makes clear, as the addition of modifier dosage, the solidify speed of some solidify systems is accelerated all the time, after some becomes fast first, slow, put in the optimal dosage of a modifier. Because,this is, when modifier when dosage is less, painty particle is wrapped not completely still Fu, still should absorb ultraviolet light; to become with initator competition when modifier dosage is too much, criterion the modified particle of free also can is opposite solidify speed produces an effect. In addition, same the modified effect with kind of painty to what differ modifier is distinct also.
Undertake exterior modified to dye in order to raise the solidify rate of system of whole UV solidify, this kind of method goes easily simply, but modifier itself also can be absorbed somewhat to ultraviolet light. Accordingly, important place is had in seeking the modifier with small to ultraviolet light absorptivity, superior performance to use painty research in UV solidify.
Craft of 5 besmear cloth / illuminant
Besides a few influencing factor of above discussion, besmear cloth craft also is to the influence of solidify speed cannot of oversight, a main factor is the ply of coating.
As coating ply reduce, in radiation general power changeless circumstance falls, ultraviolet light reachs coating floor easily, solidify speed is accelerated.
The UV illuminant that regards smooth solidify as main component [28] , also have very big effect to the function of the material after solidify process of the system and solidify [29-32] , different illuminant can give out the light that spectrum distributings to differ with power, consequently the solidify speed to UV solidify system can produce distinct effect. Below the solidify condition of dosage of same ultraviolet light, solidify speed as ultraviolet of lighting source intensity increase and accelerate. UV wave band is in commonly limits of 100 ～ 400nm, but because UV solidify paint is general,is active in 200 ～ 450nm, because this makes the absorbs spectrum to be the same as ultraviolet light emissive spectrum of smooth initator matchs, use the energy of smooth initator effectively, can raise solidify rate thereby.
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