UV Curable Primary Coating Resin for Optical Fiber

Ulv curing resin is a resin that can polymerize and solidify into a solid state.
The curing principle of UV light curing resin (UV curing resin) is different from the thermal curing principle of other resins, which must be cured by UV machine / UVLED light curing machine. This process involves ultraviolet light irradiation, so that the terminal functional groups of some polymer materials in the resin have sufficient activity to react again under the irradiation of ultraviolet light, thus realizing crosslinking and curing. This curing technology takes advantage of the characteristics of the microscopic angle of polymer, that is, the terminal functional groups of some polymer materials have strong UV photosensitivity. Only under the irradiation of ultraviolet light, these functional groups can have enough activity to react again, manifested as curing.

Product Characteristics
Ultraviolet light curable resin (UV Curable Resin) contains active functional groups, which can trigger the polymerization reaction by photosensitizer (light initiator) under ultraviolet light to generate a three-dimensional cross-linked grid solid. With the reinforced fiber, can make light curing composite material.
In addition, the characteristics of UV curing resin include simple construction, affordable, high hardness after curing, after UV irradiation glue can be reused.

 

Product Specification
No. Properties Units Standards
Before Curing (Liquid)
1 Viscosity,25ºC mPa.s 7200-8000
2 Density,20ºC g/cm3 1.01-1.06
3 Solid Content % >99
4 Refractive Index,25ºC 1.47±0.005
After Curing (Solid)
5 Glass Transition Temperature ºC ≤-30
(DMA)
6 Secant Modules,2.5% MPa 1.0-1.4
7 Elongation % 85-160
8 Tensile Strength MPa 0.9-1.4
9 Cure speed when RAU95% J/cm2 ≥1.2
10 Oxygen generation(80ºC , 24h) ul/g ≤0.2
11 Weight Change 88ºC 8weeks % <-3.8
125ºC 8weeks <-7.6
12 Adhesion 50%  RH N >0.45
on glass 95%  RH >0.35
* 75μ m film was made by curing under the nitrogen condition at UVA
0.5J/cm2  with a Fusion D lamp,unless otherwise specified. UV
Dosemeter is by UV POWER PUCK II from EIT.INC.USA.

 

Temperature – Viscosity Cure

 

 

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