Mixed styrene-acrylic copolymer resin and its preparation method and application
A styrene-acrylic copolymer resin and hybrid technology are applied in the field of hybrid styrene-acrylic copolymer resin and its preparation, and can solve the problems of poor performance, limited application of styrene-acrylic copolymer resin, poor fluidity of toner and the like
Active Publication Date: 2022-03-29
张家港威迪森化学有限公司
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AI Technical Summary
Problems solved by technology
[0002] Most of the toner produced in the prior art has the problems of poor fluidity and low transfer rate, which causes waste of toner and affects the use effect
At the same time, the current main production methods of toner are physical mixing and crushing method and chemical polymerization method. Compared with these two methods, the chemical polymerization method has more advantages in particle size distribution and shape control, and the physical mixing method is simple and reliable. control; the toner resin used in printers and copiers is mostly styrene-acrylic copolymer resin, but in view of the structural characteristics of styrene-acrylic copolymer resin, at a more suitable glass transition temperature (Tg), its softening point (Ts ) is also high, so it does not perform well in low-temperature fixing, and also limits the application of styrene-acrylic copolymer resins in high-speed printers and copiers
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0015] The preparation method of mixed type styrene-acrylic copolymer resin is the following steps:
[0016] Adopt normal pressure solution polymerization method, weigh styrene, hydroxyethyl acrylate, monobutyl maleate, initiator cumene hydroperoxide, and crosslinking agent divinylbenzene, add them into the mixing tank and mix well for later use; Add toluene with the weight of styrene, hydroxyethyl acrylate, and monobutyl maleate to the reactor, start stirring, heat to boiling, add the liquid in the mixing tank to the boiling toluene dropwise at a constant speed, and keep mixing The liquid was added dropwise within 2 hours; then reflux for 2.5 hours; after the reaction, keep the boiling reflux state for conventional vacuum vacuum distillation, and collect the slip-out liquid until no distillate flows out in the system, indicating that the solvent has been completely removed. Remove, release the material in the reactor, cool and solidify, and pulverize to obtain resin A with a ...
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Abstract
The invention discloses a mixed styrene-acrylic copolymer resin and its preparation method and application. The styrene-acrylic copolymer resin powder, carbon black, polyethylene wax, zinc compound of 3,5-di-tert-butylsalicylic acid, and silicon micropowder are mixed in Premix conventional mixing in a conventional mixer, pulverize after discharging and cooling, and sieve to obtain a mixed styrene-acrylic copolymer resin; in the presence of a terpolymer, co-extrude resin A, resin B, and resin C to prepare benzene Acrylic copolymer resin. The obtained random mixing type styrene-acrylic copolymer resin powder has a particle diameter of 5-12 microns, and is used as carbon powder for printing, and has good long-term stability.
Description
technical field [0001] The invention belongs to polymer synthesis technology, and in particular relates to mixed styrene-acrylic copolymer resin and its preparation method and application. Background technique [0002] Most of the carbon powder produced in the prior art has the problems of poor fluidity and low transfer rate, which causes waste of carbon powder and affects the use effect. At the same time, the current main production methods of toner are physical mixing and crushing method and chemical polymerization method. Compared with these two methods, the chemical polymerization method has more advantages in particle size distribution and shape control, and the physical mixing method is simple and reliable. control; the toner resin used in printers and copiers is mostly styrene-acrylic copolymer resin, but in view of the structural characteristics of styrene-acrylic copolymer resin, at a more suitable glass transition temperature (Tg), its softening point (Ts ) is als...
Claims
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IPC IPC(8): C08L35/06C08L25/14C08L23/06C08K3/04C08K3/36C08K5/098G03G9/08
CPCC08L35/06G03G9/08711C08L2205/025C08L2205/035C08L25/14C08L23/06C08K3/04C08K3/36C08K5/098
Inventor 向海波郭勇陈君山戴耀民
Owner 张家港威迪森化学有限公司