The preparation method that the anion composite modified organic silicon emulsion of softening, slipping and elastic function is arranged
Technical field:
The present invention relates to a kind of organic silicon emulsion, especially relate to a kind of anion composite modified organic silicon preparation of microemulsion method that softening, slipping and elastic function is arranged.Be mainly used in the softness, smooth, the elasticity function that improve fabric.Belong to the auxiliary chemicals technical field.
Background technology:
Organic silicon emulsion plays an important role to the feel of improving fabric, function such as shrinkproof, washable in textile industry.At present, the modified organic silicon emulsion as softening agent is made by two-step approach mostly: synthesize amino-modified silicone oil by mass polymerization earlier, carry out microemulsified with suitable emulsifying agent again.In this way the emulsion of preparation handle fabric sofetening, smooth, elasticity function is not ideal.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, a kind of preparation method that fabric has the anion composite modified organic silicon emulsion of softness, smooth, elasticity function that handles is provided.
The object of the present invention is achieved like this: a kind of preparation method that the anion composite modified organic silicon emulsion of softening, slipping and elastic function is arranged, it is to adopt anionic emulsifier Fatty Alcohol(C12-C14 and C12-C18) and ethylene oxide adduct paregal O
25Composite with the nonionic emulsifying agent alkylphenol polyoxyethylene, sulfonic acid is catalyzer, silane coupling agent N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, coupling agent γ-mercapto propyl group methyl dimethoxysilane and the organosilane monomer of two kinds of different substituents are carried out the composite emulsion modification by copolymerization, made milky modified emulsion, its preparation method comprises the steps:
A) coupling agent N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, coupling agent γ-mercapto propyl group methyl dimethoxysilane and octamethylcyclotetrasiloxane are mixed by proportioning make mixture;
B) with water, sulfonic acid, Fatty Alcohol(C12-C14 and C12-C18) and ethylene oxide adduct paregal O
25, the two fat of alkylphenol polyoxyethylene, oleic acid list drop in the reactor by proportioning, stir, and are warming up to 50 ℃ ± 5 ℃, are incubated 1 hour ± 0.5 hour;
C) mixture that a) makes is added dropwise to b) system in, keep 60min~120min, slowly be warming up to 70 ℃~80 ℃ then, be incubated 5~6 hours, cooling, neutralization is filtered, discharging, gets the oyster white anion composite modified organic silicon emulsion.
The consumption of each raw material accounts for the weight percent of raw material total amount and is in the mixed solution of step a): coupling agent N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane 0.2%~0.4%, coupling agent γ-mercapto propyl group methyl dimethoxysilane 0.2%~0.4%, octamethylcyclotetrasiloxane 16%~17%;
The consumption of each raw material of mixed system accounts for the weight percent of raw material total amount and is in the step b): water 75%~80%, sulfonic acid 2.5%~3.5%, alkylphenol polyoxyethylene 0.5%~1.0%, oleic acid list two fat 0.9%~1.2%, Fatty Alcohol(C12-C14 and C12-C18) and ethylene oxide adduct paregal Os
250.1%~0.25%.
Coupling agent N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane is a kind of silane coupling agent of bifunctional diamine.It can give fabric super soft feel(ing).
Coupling agent γ-mercapto propyl group methyl dimethoxysilane is the silane coupling agent of the strong reactive behavior of a kind of containing-SH.It can give particularly woollens anti-shrinking function of fabric.
With the silane coupling agent compound modified organic silicon emulsion of these two kinds of different functional groups, in conjunction with the advantage of two kinds of coupling agents, the emulsion that makes has fabulous softness, anti-shrinking function to fabric.
The emulsion of the present invention's preparation, its solid content is 21%~23%, appearance milky white.This emulsion has fabulous softness, shrinkproof, washable, elasticity function to the protein fabric.
Embodiment:
Embodiment 1:
A) 0.4g coupling agent N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, 0.2g coupling agent γ-mercapto propyl group methyl dimethoxysilane and 16.7g octamethylcyclotetrasiloxane are mixed make mixture;
B) with 78g water, 3g sulfonic acid, 0.5g alkylphenol polyoxyethylene, the two fat of 1g oleic acid list and 0.2g Fatty Alcohol(C12-C14 and C12-C18) and ethylene oxide adduct paregal O
25Drop in the there-necked flask, begin then to stir, be warmed up to 50 ℃, be incubated 1 hour;
C) mixture that a) makes is added dropwise to b) system in, keep 120min, slowly be warming up to 75 ℃ then, be incubated 6 hours, fast cooling to 40 ℃, neutralization is filtered, discharging, must the oyster white anion composite modified organic silicon emulsion.This emulsion can make protein fabric sofetening, shrinkproof, loose bullet.
Embodiment 2:
A) 0.9g coupling agent N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, 1.8g coupling agent γ-mercapto propyl group methyl dimethoxysilane and 66.8g octamethylcyclotetrasiloxane are mixed make mixture;
B) with 312g water, 12g sulfonic acid, 2g alkylphenol polyoxyethylene, the two fat of 4.8g oleic acid list and 0.8g ethylene oxide adduct paregal O
25Drop in the there-necked flask, begin then to stir, be warmed up to 55 ℃, be incubated 1.5 hours;
C) mixture that a) makes is added dropwise to b) system in, keep 60min, slowly be warming up to 80 ℃ then, be incubated 5 hours, fast cooling to 40 ℃, neutralization is filtered, discharging, must the oyster white anion composite modified organic silicon emulsion.This emulsion can make protein fabric sofetening, shrinkproof, loose bullet.
Embodiment 3:
A) 1.7g coupling agent N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, 1.7g coupling agent γ-mercapto propyl group methyl dimethoxysilane and 83.5g octamethylcyclotetrasiloxane are mixed make mixture;
B) with 390g water, 15g sulfonic acid, 2.5g alkylphenol polyoxyethylene, the two fat of 4.5g oleic acid list and 1g ethylene oxide adduct paregal O
25Drop in the there-necked flask, begin then to stir, be warmed up to 50 ℃, be incubated 0.5 hour;
C) mixture that a) makes is added dropwise to b) system in, keep 120min, slowly be warming up to 70 ℃ then, be incubated 6 hours, fast cooling to 40 ℃, neutralization is filtered, discharging, must the oyster white anion composite modified organic silicon emulsion.This emulsion can make protein fabric sofetening, shrinkproof, loose bullet.