The preparation method that the anion composite modified organic silicon emulsion of relaxation shrink resisting 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 relaxation shrink resisting function is arranged.Be mainly used in lax, the anti-shrinking 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.The emulsion of preparation processing fabric is lax in this way, anti-shrinking function is not ideal.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, a kind of preparation method of anion composite modified organic silicon emulsion that fabric has the function of lax, anti-shrinking 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 relaxation shrink resisting 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-cyclohexyl-γ-aminopropyl methyl dimethoxysilane, coupling agent γ-An Bingjisanyiyangjiguiwan 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-cyclohexyl-γ-aminopropyl methyl dimethoxysilane, coupling agent γ-An Bingjisanyiyangjiguiwan 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, begin then to 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-cyclohexyl-γ-aminopropyl methyl dimethoxysilane 0.1%~0.2%, coupling agent γ-An Bingjisanyiyangjiguiwan 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-cyclohexyl-γ-aminopropyl methyl dimethoxysilane is a kind of silane coupling agent of two functional group's monoamines.Its specific functional groups can give fabric special soft feel(ing), fabulous whiteness and better hydrophilicity.
The coupling agent γ-An Bingjisanyiyangjiguiwan is the mono amino silane coupling agent of using always, is the important source material of textile auxiliary.
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) 0.5g coupling agent N-cyclohexyl-γ-aminopropyl methyl dimethoxysilane, 1.5g coupling agent γ-An Bingjisanyiyangjiguiwan and 67g octamethylcyclotetrasiloxane are mixed make mixture;
B) with 3 12g water, 12g sulfonic acid, 2g alkylphenol polyoxyethylene, the two fat of 4g oleic acid list and 0.8g 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) 0.7g coupling agent N-cyclohexyl-γ-aminopropyl methyl dimethoxysilane, 1.4g coupling agent γ-An Bingjisanyiyangjiguiwan and 67g octamethylcyclotetrasiloxane are mixed make mixture;
B) with 312g water, 12g sulfonic acid, 2g alkylphenol polyoxyethylene, the two fat of 4g 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) 0.8g coupling agent N-cyclohexyl-γ-aminopropyl methyl dimethoxysilane, 1g coupling agent γ-An Bingjisanyiyangjiguiwan and 67g octamethylcyclotetrasiloxane are mixed make mixture;
B) with 312g water, 12g sulfonic acid, 2g alkylphenol polyoxyethylene, the two fat of 4g 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 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.