CN102418275A - Preparation method of antibacterial polyurethane PU finishing agent - Google Patents
Preparation method of antibacterial polyurethane PU finishing agent Download PDFInfo
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- CN102418275A CN102418275A CN2011103378704A CN201110337870A CN102418275A CN 102418275 A CN102418275 A CN 102418275A CN 2011103378704 A CN2011103378704 A CN 2011103378704A CN 201110337870 A CN201110337870 A CN 201110337870A CN 102418275 A CN102418275 A CN 102418275A
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- polyurethane
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Abstract
The invention discloses a preparation method of an antibacterial polyurethane PU finishing agent, which comprises the following steps: firstly, orderly adding an organic solvent of N-methyl pyrrolidone, MDI and dibutyl tin dilaurate with a catalytic amount into a reaction vessel which is full of inert gas, heating under stirring to dissolve; secondly, dropwisely adding a mixed solution prepared by monohydroxy polyethylene oxide, 1,4-butanediol, and 1,3-dihydroxy pivalic acid into the reaction vessel, reacting at a controlled temperature for 1-5 hours to obtain a pre-polymerization product; thirdly, adding an end-capping agent of methyl ethyl ketoxime into the pre-polymerization product obtained in the second step, performing heat preservation and reacting for 1-2 hours to obtain an end-capped polyurethane; fourthly, adding organosilicon 3-amino propyl triethoxysilane (KH-550) and an antibacterial agent of nanometer zinc oxide, performing a polymerization reaction for 1-3 hours; fifthly, adding a neutralizer of triethylamine to obtain the antibacterial polyurethane product. The antibacterial polyurethane PU finishing agent obtained in the invention can make a leather coating glaze smooth, increase waterproofness, has high antibacterial efficiency and long lasting time.
Description
Technical field:
The present invention relates to a kind of antibiotic property polyurethane PU finishing agent, particularly the preparation method of antibiotic property polyurethane PU finishing agent.
Background technology:
Polyurethane (PU) synthetic leather has excellent properties such as its outstanding ABRASION RESISTANCE, intensity and toughness, solvent resistance, oil resistivity, high cutting rate; Be widely used in various clothes, footwear, case and bag, automotive trim; Household on the products such as stationery, is desirable natural leather substitute products.Yet the conventional polyurethanes synthetic leather is being processed finished product service time soon, and going mouldy just appears in the leather surface, crack performance; Mainly be owing to contain bacterium, the necessary nutriment of mould in the polyurethane material; Under suitable temperature and humidity condition, microorganism (bacterium and mould) will breed on the PU synthetic leather in a large number, and mould secretion causes the biodegradation of polyurethane; Cause fiber surface to produce mildew and crackle, shorten the service life of synthetic leather and leather.Go mouldy in order to prevent that the PU synthetic leather from producing; The protection human body does not receive the infringement of malignant bacteria on synthetic leather and the leather; The easiest and efficient ways is on the Synthetic Leather finished product, to obtain antibacterial functions through top finishing technology; As with antiseptic dissolving or be distributed in special ability and the high liquid plastidome of Synthetic Leather combination fastness and process antibiotic finishing solution, through external coating, sprinkling, mode such as flood or pad dressing liquid is applied to synthetic leather material or product surface after technologies such as oven dry, typing are accomplished antibioticization arrangement process then.
Summary of the invention:
Goal of the invention:, the invention provides a kind of preparation method of antibiotic property polyurethane PU finishing agent 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 antibiotic property polyurethane PU finishing agent; It is characterized in that; May further comprise the steps: (1) adds the dibutyl tin laurate of organic solvent N-Methyl pyrrolidone and MDI and catalytic amount in being full of the agitated reactor of inert gas, is heated to 70 ℃ of dissolvings under stirring; (2) in agitated reactor, drip by monohydroxy PEO, 1; 4-butanediol and 1, the mixed solution of 3-dihydroxy pivalic acid preparation reacts 1 ~ 5h down at 60 ~ 80 ℃ and obtains prepolymer product; In the mixed solution that this step dripped; Monohydroxy PEO, 1,4-butanediol and 1, the mass fraction of 3-dihydroxy pivalic acid is followed successively by 2.5-3,0.15-0.2,0.12-0.16; (3) in the prepolymer product that step (2) is obtained, add the end-capping reagent methyl ethyl ketoxime, continue insulation reaction 1 ~ 2h down, obtain the polyurethane of end-blocking at 60 ~ 80 ℃; Four, add organosilicon 3-aminopropyltriethoxywerene werene and antiseptic nano zine oxide, polymerisation 1 ~ 3h; Five, add the triethylamine neutralizer, can obtain the antibiotic property polyurethane products.
The particle size range of said antiseptic nano zine oxide is 50 ~ 250nm.
According to above technical scheme, can realize following beneficial effect: compared with prior art, the present invention has the following advantages: the present invention obtains antibiotic property polyurethane PU finishing agent; Make leather photocatalytic coating film face smooth; Water proofing property improves, and antimicrobial efficiency is high, longer duration.
The specific 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 the agitated reactor that is full of inert gas such as nitrogen, add organic solvent N-Methyl pyrrolidone (120.0kg) and MDI (384.0kg), the dibutyl tin laurate of catalytic amount (1.5kg) is heated to 70 ℃ of dissolvings under the stirring; In agitated reactor, drip monohydroxy PEO (280.0kg), 1,4-butanediol (19.5kg), 1; The mixed liquor of 3-dihydroxy pivalic acid (14.5kg), control temperature drip and finish insulation reaction 1 ~ 5h at 70 ~ 95 ℃; Add end-capping reagent methyl ethyl ketoxime (130.0kg) down at 90 ~ 135 ℃, reaction 1 ~ 2h is cooled to 80 ℃; Add organosilicon 3 one aminopropyltriethoxywerene werene KH-550 (300.0kg), antiseptic nano zine oxide (15.0kg), polymerisation 1 ~ 3h; Adding neutralizer ethylenediamine (8.5kg), reduce to 20 ℃, get the antibiotic property polyurethane products.
Claims (2)
1. the preparation method of an antibiotic property polyurethane PU finishing agent; It is characterized in that; May further comprise the steps: (1) adds the dibutyl tin laurate of organic solvent N-Methyl pyrrolidone and MDI and catalytic amount in being full of the agitated reactor of inert gas, is heated to 70 ℃ of dissolvings under stirring; (2) in agitated reactor, drip by monohydroxy PEO, 1; 4-butanediol and 1, the mixed solution of 3-dihydroxy pivalic acid preparation reacts 1 ~ 5h down at 60 ~ 80 ℃ and obtains prepolymer product; In the mixed solution that this step dripped; Monohydroxy PEO, 1,4-butanediol and 1, the mass fraction of 3-dihydroxy pivalic acid is followed successively by 2.5-3,0.15-0.2,0.12-0.16; (3) in the prepolymer product that step (2) is obtained, add the end-capping reagent methyl ethyl ketoxime, continue insulation reaction 1 ~ 2h down, obtain the polyurethane of end-blocking at 60 ~ 80 ℃; Four, add organosilicon 3-aminopropyltriethoxywerene werene and antiseptic nano zine oxide, polymerisation 1 ~ 3h; Five, add the triethylamine neutralizer, can obtain the antibiotic property polyurethane products.
2. according to the preparation method of the said antibiotic property polyurethane PU of claim 1 finishing agent, it is characterized in that: the particle size range of said antiseptic nano zine oxide is 50 ~ 250nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103378704A CN102418275A (en) | 2011-11-01 | 2011-11-01 | Preparation method of antibacterial polyurethane PU finishing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103378704A CN102418275A (en) | 2011-11-01 | 2011-11-01 | Preparation method of antibacterial polyurethane PU finishing agent |
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| Publication Number | Publication Date |
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| CN102418275A true CN102418275A (en) | 2012-04-18 |
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| CN2011103378704A Pending CN102418275A (en) | 2011-11-01 | 2011-11-01 | Preparation method of antibacterial polyurethane PU finishing agent |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131468A (en) * | 2014-08-08 | 2014-11-05 | 南雄鼎成化工有限公司 | Preparation method and application of super-hydrophobic antibacterial finishing agent for cotton fabrics |
| CN109735093A (en) * | 2018-12-29 | 2019-05-10 | 扬州市德运塑业科技股份有限公司 | A kind of preparation method of organosilicon of the use for synthetic leather containing Phthalocyanine Zinc/aqueous polyurethane interpenetrating network polymer emulsion |
| CN111228580A (en) * | 2020-03-16 | 2020-06-05 | 吉林大学 | Multilayer polyurethane composite film and application thereof |
| CN111298204A (en) * | 2020-03-16 | 2020-06-19 | 吉林大学 | Polyurethane composite film containing antibacterial layer and application thereof |
| CN111778730A (en) * | 2020-05-18 | 2020-10-16 | 南京群力运动器材有限公司 | Preparation method and application of antibacterial leather |
| CN113774666A (en) * | 2021-08-24 | 2021-12-10 | 上海路维国际贸易有限公司 | Cleaning material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704523A (en) * | 2004-05-27 | 2005-12-07 | 香港理工大学 | Reactive aqueous polyurethane fabric finishing agent, its preparation method and application |
| CN1854165A (en) * | 2005-04-20 | 2006-11-01 | 广州宏昌胶粘带厂 | Organic silicon modified aqueous polyurethane |
| CN1966847A (en) * | 2006-11-24 | 2007-05-23 | 华明浩 | Method for preparing inorganic clad nano silver-supported antibacterial composite polyurethane microcapsule aromatic fabrics |
-
2011
- 2011-11-01 CN CN2011103378704A patent/CN102418275A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704523A (en) * | 2004-05-27 | 2005-12-07 | 香港理工大学 | Reactive aqueous polyurethane fabric finishing agent, its preparation method and application |
| CN1854165A (en) * | 2005-04-20 | 2006-11-01 | 广州宏昌胶粘带厂 | Organic silicon modified aqueous polyurethane |
| CN1966847A (en) * | 2006-11-24 | 2007-05-23 | 华明浩 | Method for preparing inorganic clad nano silver-supported antibacterial composite polyurethane microcapsule aromatic fabrics |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131468A (en) * | 2014-08-08 | 2014-11-05 | 南雄鼎成化工有限公司 | Preparation method and application of super-hydrophobic antibacterial finishing agent for cotton fabrics |
| CN109735093A (en) * | 2018-12-29 | 2019-05-10 | 扬州市德运塑业科技股份有限公司 | A kind of preparation method of organosilicon of the use for synthetic leather containing Phthalocyanine Zinc/aqueous polyurethane interpenetrating network polymer emulsion |
| CN109735093B (en) * | 2018-12-29 | 2021-01-15 | 扬州市德运塑业科技股份有限公司 | Preparation method of organic silicon/waterborne polyurethane interpenetrating network polymer emulsion containing zinc phthalocyanine for synthetic leather |
| CN111228580A (en) * | 2020-03-16 | 2020-06-05 | 吉林大学 | Multilayer polyurethane composite film and application thereof |
| CN111298204A (en) * | 2020-03-16 | 2020-06-19 | 吉林大学 | Polyurethane composite film containing antibacterial layer and application thereof |
| CN111298204B (en) * | 2020-03-16 | 2022-05-10 | 吉林大学 | Polyurethane composite film containing antibacterial layer and application thereof |
| CN111778730A (en) * | 2020-05-18 | 2020-10-16 | 南京群力运动器材有限公司 | Preparation method and application of antibacterial leather |
| CN113774666A (en) * | 2021-08-24 | 2021-12-10 | 上海路维国际贸易有限公司 | Cleaning material and preparation method thereof |
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Application publication date: 20120418 |