CN100999875A - Acrylate emulsifying thickening agent and production process thereof - Google Patents

Abstract

The present invention is one kind of emulsified acrylate thickener for paint printing. It consists of acrylic acid 160-170 weight portions, vinyl benzene sulfonic acid 90-95 weight portions, 2-acrylamido-2-methypropyl sulfonic acid 18-19 weight portions, chlorotrimethylamino propyl acrylamide 22-24 weight portions, 20 % concentration ammonia water 300-320 weight portions, glyceryl dimethcrylate 2.5-3.5 weight portions, No. 200 solvent oil or aviation kerosene 100-150 weight portions, hydrogenated polyoxyethylene castor oil ether 22-28 weight portions, and ammonium persulfate 5-7 weight portions, which are reverse emulsion polymerized and mixed with linear organosilicon body in 4-6 weight portions. It has high water combining capacity, great electrolysis capacity, good handle and high color brightness.

Description

Acrylate emulsifying thickening agent and production method

Technical field

That the present invention relates to is a kind of printing in textiles thickener and preparation method, particularly paint thickener for printing.

Background technology

Thickener only plays a part to carry dye well pigment in printing in textiles, and thickener is had in the end wash from fabric most in dye printing; And COAT PRINTING just requires this type of thickener because of not washing, no matter be all very excellent in environmental-protecting performance, Dry Sack vividness, feel or contour sharpness various aspects of performance, can be used for COAT PRINTING.At present both at home and abroad this type of thickener such as the HIT thickener of BASF, the DM-5622 thickener of dolantin are used for COAT PRINTING and show all that to embrace outlet capacity poor, thereby make the fabric contour sharpness of printing poor; The electrolyte-resistant ability, be embodied in add the water thickening with thickener after, add binder, pigment printing paste etc. again and make the seal slurry thinning and influence printing effect; The fabric feeling of printing, Dry Sack vividness etc. are also undesirable.

Summary of the invention

The objective of the invention is to embrace outlet capacity, electrolysis capability problems, provide that a kind of armful of outlet capacity, electrolysis ability are strong, feel, paint thickener for printing and production method that the Dry Sack vividness is good at paint thickener for printing.

Acrylate emulsifying thickening agent of the present invention by material component and proportioning (weight) is:

(! ) acrylic acid 160-170,

(2) vinylbenzenesulfonic acid 90-95,

(3) 2-acrylamido-2-methyl propane sulfonic acid 18-19,

(4) chlorination trimethyl aminopropyl Methacrylamide 22-24,

(5) 20% ammoniacal liquor 300-320,

(6) crosslinking agent: dimethyl allene acid glyceride 2.5-3.5,

(7) organic solvent: No. 200 solvent naphthas or aviation kerosine 130-150,

(8)) emulsifying agent: sorbitan monooleate or rilanit special polyoxyethylene ether 24-28,

(9) initator: ammonium persulfate 5-7, behind inverse emulsion polymerization, with

(10) modified organic silicon linear body 4-6 mixes formation.

Production method is:

(1) the gram ammoniacal liquor 300-320 that acrylic acid 160-170 is restrained with 20% is neutralized to pH=6.5-7.5;

(2) add vinylbenzenesulfonic acid 90-95 gram, 2-acrylamido-2-methyl propane sulfonic acid 18-19 gram, chlorination trimethyl aminopropyl Methacrylamide 22-24 gram, the mixed water that is made into of crosslinking agent dimethyl allene acid glyceride 2.5-3.5;

(3) in reactor, add No. 200 solvent naphthas of organic solvent or aviation kerosine 100-120 gram; Under stirring state, add emulsifying agent rilanit special APEO or sorbitan monooleate 18-22 gram; In please under the condition water slowly being added of stirring; Emulsification 30-35 minute; After fully emulsified; Drip initiator ammonium persulfate 5-7 gram; At 60-70 ℃ of lower polyase 13-5 hour; Add emulsifying agent rilanit special APEO or sorbitan monooleate 4-6 gram; Stir and add No. 200 solvent naphthas of solvent or aviation kerosine 20-30 gram; After fully emulsified

(4) add modified organic silicon linear body 4-6 gram, get acrylate emulsifying thickening agent.

Printing thickening agent of the present invention is a kind of milky anionic high molecular polymer, its molecule swelling in water when this acrylate copolymer disperses in water, anionic centers along the copolymer macromolecular chain produces the Coulomb repulsion effect, make the rapid expansion of copolymer macromolecular chain and extend, self molecular volume increases manyfold rapidly, the sterically hindered increase of molecular motion, free-moving space of molecule and amplitude reduce greatly, and its macroscopical physical phenomenon is exactly that viscosity increases rapidly.A large amount of simultaneously carboxyls that exist and hydrone produce hydrogen bond association, high in addition viscosity constraint, free water molecule is significantly reduced, on application performance, then show as the raising of water retention property, have very high structural viscosity as the acrylic polymer of thickener, viscosity can descend under the mechanical stress effect, its rule is that mechanical stress is high more, and flow gradient is big more, and viscosity is low more.Run into mechanical stress such as scraper when the printing paste with this specific character and do the time spent, the viscosity of printing paste moment becomes very thin, so that can adapt to very fine screen printing, thus have extraordinary net, permeability.Be imprinted on the mill base on the fabric, along with the disappearance of mechanical stress, the very stiff that becomes has immediately been recovered initial viscosity, so just can obtain that decorative pattern is meticulous, clear-cut, product that printing effect is good.Because acrylic copolymer itself is exactly fabulous dispersant of a kind of performance and high molecular surfactant, can make large tracts of land flower type have uniform printing effect, and its high molecular association ability makes mill base easier of paste layers transfer rapidly in fabric, thereby obtains dark dense and pure color effects.

The specific embodiment

(1) acrylic acid 160 grams is neutralized to pH=6.5-7.5 with 20% ammoniacal liquor, 310 grams;

(2) add vinylbenzenesulfonic acid 90 grams, 2-acrylamido-2-methyl propane sulfonic acid 18 grams, chlorination trimethyl aminopropyl Methacrylamide 23 grams, the mixed water that is made into of crosslinking agent dimethyl allene acid glyceride 3 grams;

(3) in reactor, add No. 200 solvent naphthas of organic solvent 120 grams, under stirring state, add emulsifying agent sorbitan monooleate 20 grams, in please under the condition water slowly being added of stirring, emulsification 30-35 minute, fully emulsified after, drip the mixed liquor of initiator ammonium persulfate 6 grams and deionized water 70 grams, at 60-70 ℃ of following polyase 13 .5-4 hour, add emulsifying agent rilanit special polyoxyethylene ether 5 grams, stir No. 200 solvent naphthas of adding solvent 20 grams, after fully emulsified

(4) add modified organic silicon linear body 4 grams, get acrylate emulsifying thickening agent.

The comparison of the present invention and similar products at home and abroad

Various thickeners are pressed 10 parts of blue mill bases, 20 parts in adhesive, thickener adds entry to 100 parts of total amounts for some parts, be made into the mill base of viscosity basically identical, then that 1cm is wide filter paper immerses mill base 1cm depths, the height that liquid level rises when measuring 5 minutes, 10 minutes, 30 minutes respectively, and the height that liquid level rises is high more, it is poor more then to embrace water-based, and vice versa.The imperviousization ability of embracing the water-based difference is just poor, and it is strong to embrace the good imperviousization ability of water-based, and the fabric contour sharpness of printing is just high.

Table 1, the present invention and homemade thickener are embraced outlet capacity relatively

Name of product	5 minutes height (cm)	10 minutes height (cm)	30 minutes height (cm)
				The present invention	0.025	0.036	0.05
DM-5622	0.26	0.30	0.35

Table 2, the present invention and external thickener are embraced outlet capacity relatively:

Name of product	5 minutes height (cm)	10 minutes height (cm)	30 minutes height (cm)
				HIT	0.23	0.29	0.37
The present invention	0.025	0.036	0.05

The comparison of electrolyte-resistant ability

The thickener molecular side chain that the present invention synthesizes is long, and is sterically hindered big, has good association, thereby has good electrolyte-resistant ability.

The mensuration of electrolyte-resistant ability: at first prepare 2% white slurry, 200 grams, add 100 milliliters of 1% NaCI solution then respectively, stir, and add the viscosity of NaCI solution front and back, and be calculated as follows the viscosity rate of change with NDJ-79 type viscometer determining:

The anti-electrolysis ability that the viscosity rate of change is high, vice versa.

Measurement result is as follows: (viscosity unit is the lining pool)

The viscosity of name of product 2% white slurry adds the viscosity viscosity rate of change behind the NaCI solution

The present invention 2,400 1,800 25.0%

DM-5622 2200 900 59.1％

HIT 2300 1600 30.4％

Claims (3)

1, acrylate emulsifying thickening agent is characterized in that by material component and proportioning (weight) being:

(! ) acrylic acid 160-170,

(2) vinylbenzenesulfonic acid 90-95,

(3) 2-acrylamido-2-methyl propane sulfonic acid 18-19,

(4) chlorination trimethyl aminopropyl Methacrylamide 22-24,

(5) 20% ammoniacal liquor 300-320,

(6) crosslinking agent: dimethyl allene acid glyceride 2.5-3.5,

(7) organic solvent: No. 200 solvent naphthas or aviation kerosine 130-150,

(8)) emulsifying agent: sorbitan monooleate or rilanit special polyoxyethylene ether 24-28,

(9) initator: ammonium persulfate 5-7, behind inverse emulsion polymerization, with

(10) modified organic silicon linear body 4-6 mixes formation.

2, the production method of acrylate emulsifying thickening agent as claimed in claim 1 is characterized in that:

(1) the ammoniacal liquor 300-320 gram that acrylic acid 160-170 is restrained with 20% is neutralized to pH=6.5-7.5;

(2) add vinylbenzenesulfonic acid 90-95 gram, 2-acrylamido-2-methyl propane sulfonic acid 18-19 gram, chlorination trimethyl aminopropyl Methacrylamide 22-24 gram, the mixed water that is made into of crosslinking agent dimethyl allene acid glyceride 2.5-3.5;

(3) in reactor, add No. 200 solvent naphthas of organic solvent or aviation kerosine 100-120 gram; Under stirring state, add emulsifying agent rilanit special APEO or sorbitan monooleate 18-22 gram; In please under the condition water slowly being added of stirring; Emulsification 30-35 minute; After fully emulsified; Drip initiator ammonium persulfate 5-7 gram; At 60-70 ℃ of lower polyase 13-5 hour; Add emulsifying agent rilanit special APEO or sorbitan monooleate 4-6 gram; Stir and add No. 200 solvent naphthas of solvent or aviation kerosine 20-30 gram; After fully emulsified

(4) add modified organic silicon linear body 4-6 gram, get acrylate emulsifying thickening agent.

3, the production method of acrylate emulsifying thickening agent according to claim 2 is characterized in that:

(1) acrylic acid 160 grams is neutralized to pH=6.5-7.5 with 20% ammoniacal liquor, 310 grams;

(2) add vinylbenzenesulfonic acid 90 grams, 2-acrylamido-2-methyl propane sulfonic acid 18 grams, chlorination trimethyl aminopropyl Methacrylamide 23 grams, the mixed water that is made into of crosslinking agent dimethyl allene acid glyceride 3 grams;

(3) in reactor, add No. 200 solvent naphthas of organic solvent 120 grams, under stirring state, add emulsifying agent sorbitan monooleate 20 grams, in please under the condition water slowly being added of stirring, emulsification 30-35 minute, fully emulsified after, drip the mixed liquor of initiator ammonium persulfate 6 grams and deionized water 70 grams, at 60-70 ℃ of following polyase 13 .5-4 hour, add emulsifying agent rilanit special polyoxyethylene ether 5 grams, stir No. 200 solvent naphthas of adding solvent 20 grams, after fully emulsified

(4) add modified organic silicon linear body 4 grams, get acrylate emulsifying thickening agent.