Application of cycloaliphatic epoxy resin in hybrid light curing system

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Lipid cyclic epoxy resin can carry out cation photo-curing reaction, its curing material has the advantages of small volume shrinkage, strong adhesion, good weather resistance, especially in the free-based-cation hybrid light curing system, can be used with Free-based curing materials in coordination with each other, make up for each other, not only can effectively improve the curing speed, but also with more adhesives and active thinners used in photo-curing coatings, inks, electronic adhesives, 3D printing and other materials have a wide range of applications.
As a professional manufacturer of lipid cycloacetic acid, Tatel offers a wide range of high-quality lipoprotein epoxy resins, such as:
3,4-epoxy cyclohexymethylate-3, 4-epoxy epoxy methyl methyl methyl methylate (no.: TTA) -21)
double ((3,4-epoxy ethyl) methyl) hexate (brand: TTA-26) etc.
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in order to provide customers with better technical support and better understanding of the lipid ring For the application of oxygen resin in free-based-cation hybrid light curing system, Tatel selected TTA-21 as a cation curing agent and epoxy acrylic and some active thinners for curing performance comparison, in which cation light triggers were selected sulfur Salt (brand: TTA UV-692) and iodinesal (brand: TTA UV-694), free radical light triggers selected 1-hydroxy cyclohexylbenzene (184 light trigger).
the properties of the chemical curing are as follows:
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the main performance advantages of the hybrid photo-curing system of lipid-containing cyclic epoxy resins

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1, high conversion rate of epoxy group
free-form light trigger on cation light trigger has played a sensitive role, improve the light energy utilization rate of cation light trigger

2, high-
hybrid systems, both free-based polymerization and cation polymerization. Free-form polymerization reacts quickly, and when lighted, it can quickly form rigid polymer skeleton structures. Subsequently, the lipid ring epoxy resin through cation polymerization reaction on the basis of the skeleton structure continues to polymerization cross-linking, forming a secondary structure, the two structures through the tangled together, such a structure by external forces are not easy to be destroyed, showing a higher stretch strength.
3, good volume shrinkage
when free-based polymerization reaction occurs between pre-curing and van der Worrestion, the distance between them changes from the pre-curing Vanderwar force action distance to the distance between the co-priced keys after curing, so the volume shrinkage rate is large, resulting in internal stress and poor adhesion and other problems.
Epoxy compounds for cation open-loop polymerization, on the one hand, from the pre-curing monolith molecules between the Vanderwar force action distance into the co-priced bond after curing between the action distance, resulting in volume contraction, on the other hand, epoxy monoidant open-loop polymerization formed by the structural unit size is larger than the monolith molecules, so that the volume expansion. The two work together to make epoxy compounds less shrinkage when cured. Therefore, the volume shrinkage of the free-based-cation hybrid photo-curing system is smaller than that of the free-based photo-curing system alone.
application of lipid cyclic epoxy resin in mixed light curing system improves the choice and possibility for the research of ultraviolet curing technology and the development of special new materials.
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