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Prepn and application of reactive polyacrylate microgel

A technology of polyacrylate and microgel, which is applied in the field of functional polymers, can solve problems such as network blocking and unsatisfactory color fastness, and achieve the effect of improving color fastness, small particle size, and high solid content

Inactive Publication Date: 2007-06-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also problems such as network blocking and unsatisfactory color fastness, which can be solved by adding this reactive polyacrylate microgel, which can improve the rheology, film performance and color fastness of the coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Raise the temperature of the water bath to 60°C, accurately weigh a quantitative emulsifier (1.1 grams of sodium dodecylsulfonate, 3.3 grams of Tx-30), place 170 grams of deionized water in a four-necked bottle, and start stirring; 3.13 grams of monomer styrene, 4.7 grams of butyl acrylate, 0.27 grams of methacrylic acid, 0.9 grams of divinylbenzene, mix well, add it to the reactor for pre-emulsification and pass nitrogen gas under the liquid surface for 30 minutes, When the temperature of the reaction system is stable (the system temperature should be 70°C when the pre-emulsification is completed), accurately weigh 0.05 grams of the initiator APS and dissolve it in 2 grams of deionized water, place the APS solution in a constant temperature water bath, and preheat it. Add it to the four-neck flask to initiate the reaction, continue to stir and raise the temperature. When the temperature reaches 75°C and the solution in the reaction flask turns slightly blue (after the p...

Embodiment 2

[0028] Raise the temperature of the water bath to 62°C, accurately weigh a quantitative emulsifier (1.255 grams of sodium dodecylsulfonate, 3.765 grams of Tx-30), place 170 grams of deionized water in a four-necked bottle, and start stirring; 5.24 grams of monomer methyl methacrylate, 7.86 grams of butyl acrylate, 0.452 grams of hydroxyethyl methacrylate, 1.52 grams of triethylene glycol dimethacrylate, mix well, and add it into the reactor for After pre-emulsification and passing nitrogen gas under the liquid surface for 20 minutes, when the temperature of the reaction system is stable (the system temperature should be 70°C when the pre-emulsification is completed), accurately weigh 0.0844 grams of initiator APS and dissolve it in 2 grams of deionized water. The APS solution is placed in a constant temperature water bath. After preheating, add it into a four-neck flask to initiate the reaction, continue to stir and heat up, and when the temperature reaches 75°C, the solution i...

Embodiment 3

[0030] Add 1 gram of the synthesized polyacrylate reactive microgel emulsion into 9 grams of fabric paint printing adhesive and fully stir and disperse to make a composite adhesive, add 2.5 grams of paint blue, and adjust the pH value to 7-8 with ammonia water , then add 20 grams of thickener PTF (4%) and 17.5 grams of deionized water to make printing color paste, and hand-print the color paste on poplin cotton cloth of 40cm * 40cm. The printing process is printing → drying ( 80°C, 3min)→baking (100°C / 120°C / 160°C, 1.5min).

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PUM

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Abstract

The present invention relates to the preparation process and application of reactive polyacrylate microgel. The preparation process includes the synthesis step comprising mixing composite emulsifier and monomer via stirring, pre-emulsifying and adding initiator to prepare translucent polymer micoremulsion; and the amination step comprising dropping ammonia water solution via stirring and regulating pH value to 7-8 to prepare transparent clear emulsion. The micoremulsion is added into fabric printing adhesive to form printing color paste together with other materials. It has small particle size, low consumption, no environmental pollution and other advantages.

Description

technical field [0001] The invention belongs to the technical field of functional polymers, and in particular relates to a preparation method and application of polyacrylate reactive microgel. Background technique [0002] Microgel is a kind of intramolecular cross-linked macromolecule, its molecular structure is between branched macropolymer and space network polymer, a microgel particle is a macromolecule, and this macromolecular chain is limited in Intramolecular cross-linking is carried out in a certain area to form a network structure, and there is no chemical bond between microgel particles. When multifunctional monomers are polymerized to form microgels, due to the three-dimensional structure, not all functional groups can participate in the formation of the network, and the remaining unreacted groups can be further reacted to form a network with a heterogeneous structure. The polymers are reactive microgels. [0003] The addition of microgel to the paint can effect...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F2/24C08F8/32C08F4/28D06P1/52
Inventor 邢宏龙连媛陈水林
Owner DONGHUA UNIV
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