CN102464879A - Polyurethane resin for high light fabric coating, and manufacture method thereof - Google Patents
Polyurethane resin for high light fabric coating, and manufacture method thereof Download PDFInfo
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- CN102464879A CN102464879A CN201010537686XA CN201010537686A CN102464879A CN 102464879 A CN102464879 A CN 102464879A CN 201010537686X A CN201010537686X A CN 201010537686XA CN 201010537686 A CN201010537686 A CN 201010537686A CN 102464879 A CN102464879 A CN 102464879A
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Abstract
The present invention relates to a polyurethane resin for a high light fabric coating, and a manufacture method thereof, wherein the average molecular weight of the polyurethane resin is 40000-100000 g/mol, the viscosity of the polyurethane resin is 50000-70000 cps/25 DEG C, the solid content of the polyurethane resin is 50-65%, and the polyurethane resin is prepared by the reaction of a polyester polyol, a polyether polyol, a diol chain extender and diisocyanate. With the polyurethane resin coated on the fabric, the fabric surface has characteristics of smoothness, high gloss, and no pastiness at the high temperature.
Description
Technical field
The present invention relates to a kind of urethane resin and method of manufacture thereof, relate in particular to the high light fabric coating of a kind of fabric face with urethane resin and method of manufacture thereof.
Background technology
Synthesizing normally by binary or multicomponent isocyanate and containing two or more active hydrogen group compounds of urethane resin forms through step-reaction polymerization.Except generating carbamate groups, also generate groups such as urea, biuret.The characteristic of polyurethane chemistry structure is to contain multiple carbamate segment in its macromolecular main chain.The polyurethane macromolecular main chain is to be formed by the rigid chain segment block that subambient soft segment of second-order transition temperature and second-order transition temperature are higher than room temperature, and oligomer polyol constitutes soft chain segment, vulcabond becomes hard segment with the small molecules chain extension.
Fabric coating belongs to resin type spinning post-finishing auxiliary agent with urethane resin; Be widely used in all kinds of weavings and leather processing enterprise; Be used to dye, the fabric behind the stamp, give required stable feel and function, like Waterproof Breathable function, anti-static function, the water-fast function etc. of washing.
After use, the fabric face glossiness is not high with urethane resin for existing fabric coating, and perhaps feel is hardened, and can not satisfy market demand.According to " GB8686-88 fabric sheen testing method "; Use the fabric sheen appearance to test to using the fabric of putting in order after the urethane resin coating; The objective gloss Gs of common fabric is 5～15%, contrast gloss is 5～20, and the objective gloss Gs of existing high gloss fabric is 15～25%, contrast gloss is 20～30.And existing high light fabric adopts the release complete processing of dry method usually, has the shortcoming that the PT is long, tooling cost is high.
Chinese invention patent " high solid and high light resin composition for chemical leather " (200810024129.0) relates to a kind of high solid and high light resin composition for chemical leather and method of manufacture thereof; Belong to the Compositional type resin, but this patent does not provide the testing method and the test result of glossiness.Chinese invention patent " a kind of high gloss, high resolution urethane resin and preparation thereof " (200810194820.3) relates to a kind of high gloss, high resolution urethane resin and method of manufacture thereof; Be used for tackiness agent; But this patent does not disclose concrete prescription, does not provide the testing method and the test result of glossiness yet.Chinese invention patent " high light urethane resin and purposes " (201010163613.9) relates to a kind of high smooth urethane resin and method of manufacture thereof, is used for the last optical processing of leather surface as leather treatment.
Summary of the invention
The purpose of this invention is to provide a kind of high smooth fabric coating with urethane resin and preparation method thereof, be applied to that the fabric coating glossiness is low, feel is hardened, problems such as tooling cost height to overcome currently available products.
The present invention provides the high light fabric coating in a kind of surface to use urethane resin, and molecular-weight average is 40000～100000g/mol, and resin viscosity is 50000～70000cps/25 ℃, and the solid content of resin is 50～65%.Its structural formula is:
In the formula; R is the part except that the NCO base in the diisocyanate compound; R1 is the part except the OH base in the polyalcohols compound; R2 is the part except the OH base in the glycols chainextender, Yi Bian R3 has the part except OH in the basic compound of OH, m and k are the integers more than 1.
Described high light fabric coating is used urethane resin, contains 40～80 parts of polyester polyols, 5～15 parts of polyether glycols, 20～60 parts of diisocyanate compounds, 5～15 parts of glycols chainextenders, 0.1～0.5 part of organic silver catalyzer, 1～5 part of auxiliary agent, 50～90 parts of organic solvents.
Wherein:
Said polyester polyol is one or more combinations that gather adipate glycol propylene glycol ester, polyethylene glycol adipate, polypropylene adipate(PPA);
Said polyether glycol is one or more combinations of polytetramethylene glycol ethoxylated polyhydric alcohol, THF homopolymer polyvalent alcohol, polypropyleneoxide polyvalent alcohol;
Said diisocyanate compound is one or more combinations of tolylene diisocyanate, diphenylmethanediisocyanate, hexamethylene diisocyanate;
Said glycols chainextender is one or more combinations of terepthaloyl moietie, pinakon, NSC 6366, methyl propanediol;
Said organic solvent is one or more combinations of toluene, butanone, N;
Said auxiliary agent comprises terminator, skimmer, oxidation inhibitor, flow agent, silicone softening agent and organic silicon hand feeling agent;
Said terminator is a methyl alcohol.
It is 50～65% that said high light fabric coating uses the solid content of urethane resin, and viscosity is 50000～70000cps/25 ℃.
Make the method for above-mentioned high light fabric coating, comprise the following steps: with urethane resin
1) 40～80 parts of polyester polyols, 5～15 parts of polyether glycols, 5～15 parts of glycols chainextenders, 0.1～0.5 part of oxidation inhibitor, 0.1～0.5 part of skimmer, 0.1～0.5 part of silicone softening agent are joined in the reaction kettle; Add after 20～40 parts of organic solvents fully stir; Add 10～30 parts of vulcabond, reacted 30～60 minutes down at 60～80 ℃;
2) conditioned reaction still temperature to 75～85 ℃ add 0.1～0.5 part of organic silver catalyzer, add remaining vulcabond, 30～50 parts of organic solvents in batches, and reaching 80000～100000cps/25 ℃, solid content up to the viscosity of resin is 50～80%;
3) temperature to 65 of conditioned reaction still～70 ℃ add 10～20 parts of organic solvents, regulate 50000～70000cps/25 ℃ of resin viscosity, solid content is that 50～65% backs add 0.1～0.5 part of terminator termination reaction;
4) add 0.5～1.0 part of flow agent, 0.5～1.0 part of organic silicon hand feeling agent, the back packing stirs.
In the method for manufacture of the present invention, the concrete function needs according to product can also add different auxiliary agents in said step 4), like tranquilizer, transformation of the way agent etc., obtain the finished product.
Beneficial effect of the present invention is: the high light fabric coating that is provided is used urethane resin, is applied to fabric coating and has with currently available products and compare higher glossiness, and feel is felt like jelly, and the surface is smooth, and high temperature is not clamminess.
Embodiment
Below describe technical scheme of the present invention in detail.
Embodiment 1:
A kind of high smooth fabric coating is used urethane resin, contains 60 parts and gathers adipate glycol propylene glycol ester (molecular-weight average 2000), 8 parts of polytetramethylene glycol ethoxylated polyhydric alcohols, 40 parts of diphenylmethanediisocyanates; 5 parts of terepthaloyl moietie, 2 parts of pinakons, 80 parts of Ns, 0.1 part of organic silver catalyzer; 0.5 part termination agent methyl alcohol, 0.2 part of silicone softening agent, 0.3 part of skimmer; 0.1 part oxidation inhibitor, 0.6 part of flow agent, 1 part of organic silicon hand feeling agent.
Make the method for above-mentioned high light fabric coating, comprise the following steps: with urethane resin
1) gathering adipate glycol propylene glycol ester, 10 parts of polytetramethylene glycol ethoxylated polyhydric alcohols, 5 parts of terepthaloyl moietie, 2 parts of pinakons, 0.1 part of oxidation inhibitor, 0.3 part of skimmer, 0.2 part of silicone softening agent with 60 parts joins in the reaction kettle; Add after 30 parts of Ns fully stir; Add 20 parts of diphenylmethanediisocyanates, reacted 40～60 minutes down at 70～80 ℃;
Wherein the total OH and the NCO equivalence ratio of vulcabond are 0.5～1: 1 in polyalcohols compound, the glycols chainextender, and the OH base equivalence ratio of polyalcohols compound and glycols chainextender is 1: 0.9～1.1.
2) conditioned reaction still temperature to 75～85 ℃; Add 0.1 part of organic silver catalyzer; Add remaining diphenylmethanediisocyanate, 30～40 parts of Ns in batches, reaching 80000～100000cps/25 ℃, solid content up to the viscosity of resin is 50～75%;
3) temperature to 65 of conditioned reaction still～70 ℃ add 10～20 parts of Ns, regulate 50000～68000cps/25 ℃ of resin viscosity, solid content is that 55～65% backs add 0.5 part of terminator methyl alcohol termination reaction;
4) add 0.6 part of flow agent, 1.0 parts of organic silicon hand feeling agent, the back packing stirs.
Research shows that the comprehensive action of polyester polyol and polyether glycol makes the urethane resin of preparation have special physicochemical property.Usually, soft section has stronger hydrogen bond and embodies better physicals in the polyester polyol goods, and the hydrogen bond that forms between ester group and amino-formate bond has also promoted mixing mutually of soft or hard section, product strength is improved, but water tolerance descends.Polyether glycol goods physicals is relatively poor relatively, but has better stability to hydrolysis and snappiness.
Experimental study shows that the selection of polyether glycol and polyester polyol and mol ratio have remarkably influenced to the glossiness that prepared urethane resin is used for fabric coating.Keep the proportioning and the preparation process of other component constant, change the addition of polyether glycol and polyester polyol, as shown in table 1 to the influence of the glossiness of fabric coating.
The test of fabric sheen uses YG814 type fabric sheen appearance to test with reference to " GB8686-88 fabric sheen testing method ".Incident directional light with 60 ° (with the angle of normal) is radiated on the sample; Receive its normal reflection light respectively and diffuse with-30 ° at 60 °; Its light intensity is respectively objective gloss Gs and diffuse-reflectance light intensity Gd, and the ratio that calculates 2 intensity is called contrast gloss
Table 1: the polyether glycol addition is to the influence of fabric coating glossiness
Embodiment 2:
A kind of high smooth fabric coating is used urethane resin, contains 75 parts of polypropylene adipate(PPA)s (molecular-weight average 2000), 15 parts of THF homopolymer polyvalent alcohols, 45 parts of tolylene diisocyanates; 10 parts of terepthaloyl moietie, 0.1 part of organic silver catalyzer is ended agent methyl alcohol for 0.3 part; 0.5 part silicone softening agent, 0.2 part of skimmer, 0.1 part of oxidation inhibitor; 0.5 part flow agent, 0.6 part of organic silicon hand feeling agent, with N and toluene as organic solvent.
Make the method for above-mentioned high light fabric coating, comprise the following steps: with urethane resin
1) 75 parts of polypropylene adipate(PPA)s of input, 15 parts of THF homopolymer polyvalent alcohols, 10 parts of terepthaloyl moietie, 0.1 part of oxidation inhibitor, 0.2 part of skimmer, 0.5 part of silicone softening agent join in the reaction kettle in the reaction kettle; Add after 30 parts of Ns fully stir; Add 25 parts of tolylene diisocyanates, reacted 30～60 minutes down at 70～80 ℃;
2) keeping temperature of reaction kettle is 70～80 ℃, adds 0.1 part of organic silver catalyzer, adds tolylene diisocyanate, the N of remainder in batches, and reaching 90000～110000cps/25 ℃, solid content up to the viscosity of resin is 55～75%;
3) temperature to 60 of conditioned reaction still～70 ℃ add 10～20 parts of toluene, regulate 55000～70000cps/25 ℃ of resin viscosity, solid content is that 50～60% backs add 0.5 part of terminator methyl alcohol termination reaction;
4) add 0.5 part of flow agent, 0.6 part of organic silicon hand feeling agent, the back packing stirs.
Use the fabric of high light fabric coating provided by the invention, objective gloss Gs=40.3%, contrast gloss Gc=36.5 with urethane resin.
In the method for manufacture of the present invention, the concrete function needs according to product can also add different auxiliary agents, prevent agent, transformation of the way agent etc. like tranquilizer, silicone oil, matting agent, acidifying, obtain the finished product.
Use the fabric sheen appearance to test to using the fabric of putting in order after the urethane resin coating; The objective gloss Gs of common fabric is 5～15%, contrast gloss is 5～20, and the objective gloss Gs of existing high gloss fabric is 15～25%, contrast gloss is 20～30.Use the fabric of high light fabric coating provided by the invention with urethane resin, objective gloss Gs＞40%, contrast gloss Gc＞35, surface gloss is apparently higher than currently available products.
Claims (3)
1. one kind high smooth fabric coating is used urethane resin, it is characterized in that: contain 40～80 parts of polyester polyols, 5～15 parts of polyether glycols, 20～60 parts of diisocyanate compounds, 5～15 parts of glycols chainextenders, 0.1～0.5 part of organic silver catalyzer, 1～5 part of auxiliary agent, 50～90 parts of organic solvents; Said auxiliary agent comprises terminator, skimmer, oxidation inhibitor, flow agent, silicone softening agent and organic silicon hand feeling agent; It is 50～65% that said high light fabric coating uses the solid content of urethane resin, and viscosity is 50000～70000cps/25 ℃.
2. high light fabric coating according to claim 1 is used urethane resin, it is characterized in that: said polyester polyol is one or more combinations that gather adipate glycol propylene glycol ester, polyethylene glycol adipate, polypropylene adipate(PPA); Said polyether glycol is one or more combinations of polytetramethylene glycol ethoxylated polyhydric alcohol, THF homopolymer polyvalent alcohol, polypropyleneoxide polyvalent alcohol; Said diisocyanate compound is one or more combinations of tolylene diisocyanate, diphenylmethanediisocyanate, hexamethylene diisocyanate; Said glycols chainextender is one or more combinations of terepthaloyl moietie, pinakon, NSC 6366, methyl propanediol; Said organic solvent is one or more combinations of toluene, butanone, N; Said terminator is a methyl alcohol.
3. method of making high light fabric coating as claimed in claim 1 with urethane resin is characterized in that step is following:
1) 40～80 parts of polyester polyols, 5～15 parts of polyether glycols, 5～15 parts of glycols chainextenders, 0.1～0.5 part of oxidation inhibitor, 0.1～0.5 part of skimmer, 0.1～0.5 part of silicone softening agent are joined in the reaction kettle; Add after 20～40 parts of organic solvents fully stir; Add 10～30 parts of vulcabond, reacted 30～60 minutes down at 60～80 ℃;
2) conditioned reaction still temperature to 75～85 ℃ add 0.1～0.5 part of organic silver catalyzer, add remaining vulcabond, 30～50 parts of organic solvents in batches, and reaching 80000～100000cps/25 ℃, solid content up to the viscosity of resin is 50～80%;
3) temperature to 65 of conditioned reaction still～70 ℃ add 10～20 parts of organic solvents, regulate 50000～70000cps/25 ℃ of resin viscosity, solid content is that 50～65% backs add 0.1～0.5 part of terminator termination reaction;
4) add 0.5～1.0 part of flow agent, 0.5～1.0 part of organic silicon hand feeling agent, the back packing stirs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010537686XA CN102464879A (en) | 2010-11-10 | 2010-11-10 | Polyurethane resin for high light fabric coating, and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010537686XA CN102464879A (en) | 2010-11-10 | 2010-11-10 | Polyurethane resin for high light fabric coating, and manufacture method thereof |
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| CN102464879A true CN102464879A (en) | 2012-05-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850511A (en) * | 2012-08-07 | 2013-01-02 | 丁军 | Resin for one-component polyvinyl chloride (PVC) crystal leather |
| CN105461880A (en) * | 2015-11-20 | 2016-04-06 | 嘉兴洛克化学工业有限公司 | Superhigh-modulus resin used for fiber waterproof coatings and preparing method thereof |
| CN106279599A (en) * | 2015-05-26 | 2017-01-04 | 温州日胜新材料科技有限公司 | A kind of hydrolysis process for preparing resins |
| CN108976384A (en) * | 2018-07-20 | 2018-12-11 | 张家港市东方高新聚氨酯有限公司 | Cold-resistant hydrolysis upper leather polyurethane slurry and preparation method thereof |
| CN111718468A (en) * | 2020-07-15 | 2020-09-29 | 烟台云泷化学制品有限公司 | Low-cost high-hardness polyurethane stiffening agent slurry and preparation method and application thereof |
-
2010
- 2010-11-10 CN CN201010537686XA patent/CN102464879A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850511A (en) * | 2012-08-07 | 2013-01-02 | 丁军 | Resin for one-component polyvinyl chloride (PVC) crystal leather |
| CN102850511B (en) * | 2012-08-07 | 2014-12-10 | 丁军 | Resin for one-component polyvinyl chloride (PVC) crystal leather |
| CN106279599A (en) * | 2015-05-26 | 2017-01-04 | 温州日胜新材料科技有限公司 | A kind of hydrolysis process for preparing resins |
| CN105461880A (en) * | 2015-11-20 | 2016-04-06 | 嘉兴洛克化学工业有限公司 | Superhigh-modulus resin used for fiber waterproof coatings and preparing method thereof |
| CN108976384A (en) * | 2018-07-20 | 2018-12-11 | 张家港市东方高新聚氨酯有限公司 | Cold-resistant hydrolysis upper leather polyurethane slurry and preparation method thereof |
| CN111718468A (en) * | 2020-07-15 | 2020-09-29 | 烟台云泷化学制品有限公司 | Low-cost high-hardness polyurethane stiffening agent slurry and preparation method and application thereof |
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Application publication date: 20120523 |