What is the selection principle of photoinitiator TPO? Let's analyze it together

The appropriate photoinitiator TPO was selected according to the type of prepolymer and monomer

And it has good solubility and reactivity. Consumption. The advantages of high efficiency.

It needs to have some thermal stability. Below 85 does not decompose, long-term storage stability.

It is best to combine multiple photoinitiators. Reactions can be initiated in a range of wavelengths. So it's faster than a single photoinitiator.

The photoinitiator was used with the amine promoter EDAB.

Small smell, non-toxic, does not pollute the environment.

The price is cheap and easy to obtain, the cost is low.

Our chemical raw materials products span photoinitiators, photninitiators, water treatment agents, pharmaceutical intermediates,pesticide intermediates and so on.

The ideal photoinitiator TPO should have the following advantages. What are they? Let's break it down.

(1) Cheap and simple synthesis.

(2) The photoinitiator and its photolysis products should be non-toxic.

(3) Good stability, easy for long-term preservation.

(4) The absorption spectrum of the photoinitiator should be consistent with that of the emission light.

(5) Most photoinitiators transition to singlet state and intersystem triplet state after absorbing light, so the intersystem transition efficiency of the initiator needs to be improved.

(6) High start-up efficiency.

What is the principle of photoinitiator TPO?

Photoinitiator TPO elemental region (250~400 nm) or visible region (400~800 nm singlet or triplet). After the chemical action of single element or double element, the active fragment which can initiate the monomer reaction is elicited. These fragments can be cations, anions, etc. Photoinitiators can be divided into free radical reactive photoinitiators and cationic photoinitiators according to their mechanism. Among them, free radical reaction photoinitiator is widely used.

Photoinitiator TPO should have the following advantages:

(1) Cheap and simple synthesis.

(2) The photoinitiator and its photolysis products should be non-toxic.

(3) Good stability, easy for long-term preservation.

(4) The absorption spectrum of the photoinitiator should be consistent with that of the emission light.

(5) Most photoinitiator molecules transition to singlet state after light absorption. Jump to the system to stimulate triplet, so the inter-system jump efficiency of the generator needs to be improved.

(6) High start-up efficiency.