CN102504187A - Preparation method of leveling softener of organosilicon modified polyurethane - Google Patents
Preparation method of leveling softener of organosilicon modified polyurethane Download PDFInfo
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- CN102504187A CN102504187A CN2011103380761A CN201110338076A CN102504187A CN 102504187 A CN102504187 A CN 102504187A CN 2011103380761 A CN2011103380761 A CN 2011103380761A CN 201110338076 A CN201110338076 A CN 201110338076A CN 102504187 A CN102504187 A CN 102504187A
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Abstract
The invention discloses a preparation method of leveling softener of organosilicon modified polyurethane, which includes the following steps: firstly, adding organic solvent N, N- dimethylformamide, MDI (Diphenyl-methane-diisocyanate), HDI (Hexamethylene Diisocyanate)and dibutyl tin laurate with the amount equal to that of catalyzer in a reaction kettle, and heating while stirring to enable the mixture to react to obtain solution a; then, mixing metered hydroxy-poly-ethylene oxide with TMP (trimethylolpropane) to obtain solution b; then, slowing adding the solution b into the solution a to react for 1-5 hours under 70-100 DEG C to obtain prepolymer products; adding polyether modified organosilicon oil SF-8427 and 1,3-dihydracrylic acid to react for 1-5 hours under 70-100 DEG C; and finally, adding dodecyl dimethyl benzyl ammonium chloride to react for 1-2hours, and then stirring with high speed to obtain the product. The leveling softener of organosilicon modified polyurethane obtained through the method has the characteristics that when the leveling softener of organosilicon modified polyurethane is used for treating leather and paper, the membrane formed by the leveling softener of organosilicon modified polyurethane is smooth, resistant to wet and dry wipe, moist in hand feel and good in water repellency.
Description
Technical field:
The present invention relates to a kind of preparation method of organic silicon modified polyurethane level dyeing softener.
Background technology:
Organic silicone oil is widely used as the soft finishing agent of each kind fabric, gives good flexibility of fabric and smooth feeling.Yet this type softening agent is prone to make the fabric yellowing heating or baking in the process; During in particular for the white or the arrangement of light fabric; Fabric generation look is become, influence the color and luster and the vividness of colored fabric, simultaneously; Brought hydrophobicity by finish fabric, the good natural fiber wear behavior of original wetting ability is descended; And the less stable of emulsion layering, floating oil and demulsifying phenomenon often occur in storage, transportation.Dyeing speck is if take place in the fabric behind silicone finish, and the difficulty of returning something for repairs is prone to cause grade to descend even scraps.Advantages such as aqueous polyurethane emulsion has strong, the Bearable dry and wet wipe of fastness as the crosslinked bridging agent of textile fabric, and water dispersible is good are widely used in recent years, but it is in dyeing and finishing process, and hardness is strong, and feel and water-repellancy are undesirable, uneven dyeing etc.
Summary of the invention:
Goal of the invention:, the invention provides a kind of preparation method of organic silicon modified polyurethane level dyeing softener to the defective that prior art exists.
Technical scheme: for realizing the foregoing invention purpose; The present invention adopts following technical scheme: a kind of preparation method of organic silicon modified polyurethane level dyeing softener; May further comprise the steps: in being full of the reaction kettle of rare gas element, add organic solvent N earlier; The dibutyl tin laurate of dinethylformamide, '-diphenylmethane diisocyanate MDI, hexamethylene diisocyanate HDI and catalytic amount stirs heating for dissolving down, obtains a liquid; Monohydroxy polyethylene oxide and TriMethylolPropane(TMP) TMP with metering mixes then, gets b liquid; Then said b liquid is slowly added in a liquid, react 1 ~ 5h down at 70 ~ 100 ℃ and obtain prepolymer product; Then continue to add organic silicon modified by polyether oil SF-8427 and 1, the 3-dihydroxypropionic acid is reaction 1 ~ 5h under 70 ~ 100 ℃; Add dodecyl benzyl dimethyl ammonium chloride reaction 1 ~ 2h at last, high-speed stirring obtains product.
The mass ratio of said MDI and HDI is 1 ~ 5:1.
Beneficial effect: compared with prior art, the present invention has the following advantages: the present invention obtains organic silicon modified polyurethane level dyeing softener and is used to handle leather and paper to have film forming sliding suitable, even dyeing, and Bearable dry and wet wipe, feel is moistened, characteristics such as good waterproof performance.
Embodiment:
Below in conjunction with embodiment the present invention is done detailed description further, but the scope that the present invention requires to protect is not limited to the scope that embodiment representes.
Embodiment 1:
In being full of the reaction kettle of nitrogen, add organic solvent N successively, dinethylformamide (150.0kg) and MDI (300.0kg), HDI (85.0kg), two LAURIC ACID 99 MIN diisobutyl tin (1.25kg) of catalytic amount are heated to 60 ℃ of dissolvings under stirring; In reaction kettle, drip the mixing solutions of monohydroxy polyethylene oxide (280.0kg) and TriMethylolPropane(TMP) (30.0kg), drip and finish, temperature control is at 80 ~ 95 ℃; Reaction 1 ~ 5h adds organic silicon modified by polyether oil SF-8427 (355.0kg) and 1,3-dihydroxypropionic acid (18.5kg); Controlled temperature is at 90 ~ 105 ℃, and reaction 1 ~ 5h is cooled to 80 ℃ with reaction solution; Add dodecyl benzyl dimethyl ammonium chloride (55.0kg) reaction 1 ~ 2h, high-speed stirring is even, obtains aqueous product.
Claims (2)
1. the preparation method of an organic silicon modified polyurethane level dyeing softener; May further comprise the steps: in being full of the reaction kettle of rare gas element, add organic solvent N earlier; The dibutyl tin laurate of dinethylformamide, '-diphenylmethane diisocyanate MDI, hexamethylene diisocyanate HDI and catalytic amount; Stir heating for dissolving down, obtain a liquid; Monohydroxy polyethylene oxide and TriMethylolPropane(TMP) TMP with metering mixes then, gets b liquid; Then said b liquid is slowly added in a liquid, react 1 ~ 5h down at 70 ~ 100 ℃ and obtain prepolymer product; Then continue to add organic silicon modified by polyether oil SF-8427 and 1, the 3-dihydroxypropionic acid is reaction 1 ~ 5h under 70 ~ 100 ℃; Add dodecyl benzyl dimethyl ammonium chloride reaction 1 ~ 2h at last, high-speed stirring obtains product.
2. according to the preparation method of the said organic silicon modified polyurethane level dyeing of claim 1 softener, it is characterized in that: the mass ratio of said MDI and HDI is 1 ~ 5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103380761A CN102504187A (en) | 2011-11-01 | 2011-11-01 | Preparation method of leveling softener of organosilicon modified polyurethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103380761A CN102504187A (en) | 2011-11-01 | 2011-11-01 | Preparation method of leveling softener of organosilicon modified polyurethane |
Publications (1)
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| CN102504187A true CN102504187A (en) | 2012-06-20 |
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| CN2011103380761A Pending CN102504187A (en) | 2011-11-01 | 2011-11-01 | Preparation method of leveling softener of organosilicon modified polyurethane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951809A (en) * | 2014-04-23 | 2014-07-30 | 西安工程大学 | Preparation method of polyurethane modified organic silicon multipolymer fabric softening agent |
| CN104060469A (en) * | 2014-06-26 | 2014-09-24 | 江苏宝泽高分子材料股份有限公司 | Finishing agent for brightening and smoothening synthetic leather and preparation method thereof |
| CN105421108A (en) * | 2015-12-14 | 2016-03-23 | 嘉兴学院 | Leveling agent for leather, preparation method and leather dying method |
-
2011
- 2011-11-01 CN CN2011103380761A patent/CN102504187A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951809A (en) * | 2014-04-23 | 2014-07-30 | 西安工程大学 | Preparation method of polyurethane modified organic silicon multipolymer fabric softening agent |
| CN103951809B (en) * | 2014-04-23 | 2016-03-16 | 西安工程大学 | A kind of preparation method of polyurethane-modified organosilicon multiple copolymer fabric softener |
| CN104060469A (en) * | 2014-06-26 | 2014-09-24 | 江苏宝泽高分子材料股份有限公司 | Finishing agent for brightening and smoothening synthetic leather and preparation method thereof |
| CN105421108A (en) * | 2015-12-14 | 2016-03-23 | 嘉兴学院 | Leveling agent for leather, preparation method and leather dying method |
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Application publication date: 20120620 |