A kind of heat-sensitive type film-forming resin for exempting CTP plate and preparation method thereof

Abstract

The invention discloses a heat-sensitive film-forming resin for a treatment-free CTP plate and a preparation method thereof, and relates to the field of materials. The epoxy resin is added into a four-necked flask, then a mixed solvent is added, and nitrogen protection is introduced, and the temperature is raised and stirred. Until the epoxy resin is completely dissolved, the reaction liquid a is obtained, the initiator is added to the mixed solvent, and the ultrasonic stirring is used to dissolve it completely, and the reaction liquid b is obtained, and the reaction liquid b is added to the constant pressure dropping funnel, and added dropwise In the reaction solution a, the intermediate product A is obtained, and then the modifier is added to the four-necked flask, heated and reacted at a constant temperature, and the reaction product is subjected to a rotary evaporation operation to obtain the heat-sensitive film-forming resin; by modifying The benzene ring and C-F bond in the agent are introduced into the epoxy resin molecular chain. The introduction of the benzene ring increases the rigidity of the molecular chain and weakens the thermal movement of the molecule. The introduced C-F bond has high bond energy and high stability. , thereby improving the heat resistance of epoxy resin.

Description

technical field [0001] The invention relates to the field of materials, in particular to a heat-sensitive film-forming resin for a treatment-free CTP plate and a preparation method thereof. Background technique [0002] With the development of key technologies such as information and manufacturing, pre-press plate-making is making every effort to popularize computer-to-plate (Computer To Plate, CTP). Computer-to-plate-making refers to the technology of inputting the original information into the computer for processing, and then directly outputting the information to the printing plate through computer control. The information on the electronic layout is transmitted to the printing plate, and the technology for printing the printing plate is obtained directly. Offset printing CTP plates mainly include photosensitive plates, heat-sensitive plates and inkjet plates according to the imaging mechanism, among which heat-sensitive plates occupy a dominant position in the market. ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a kind of heat-sensitive type film-forming resin and preparation method thereof for exempting from processing CTP plate: by adding epoxy resin to a constant pressure dropping funnel, magnetic stirrer , a thermometer, an air guide tube and a four-necked flask with a condenser tube, then add a mixed solvent, pass through nitrogen protection, heat up and stir until the epoxy resin is completely dissolved, and obtain a reaction solution a, add the initiator to the mixed solvent, and ultrasonically stir to make It is completely dissolved to obtain the reaction solution b, which is added to the constant pressure dropping funnel, and added dropwise to the reaction solution a to obtain the intermediate product A, and then the modifier is added to the four-necked flask, and the temperature is raised Heating and constant temperature reaction, the reaction product is subjected to a rotary evaporation operation to remove the solvent, and a heat-sensitive film-forming resin for a treatment-free CTP plate is obtained, which solves the problem of poor heat resistance of the existing heat-sensitive film-forming resin for a treatment-free CTP plate. The quality of offset printing CTP plates limits the development of offset printing CTP plates

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