CN1519274A - Polyurethane leather modified by inorganic nano powder mateial and preparation method - Google Patents
Polyurethane leather modified by inorganic nano powder mateial and preparation method Download PDFInfo
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- CN1519274A CN1519274A CNA03138868XA CN03138868A CN1519274A CN 1519274 A CN1519274 A CN 1519274A CN A03138868X A CNA03138868X A CN A03138868XA CN 03138868 A CN03138868 A CN 03138868A CN 1519274 A CN1519274 A CN 1519274A
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- inorganic nanometer
- nanometer powder
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Abstract
An inorganic nano-class powder modified polyurethane leather is prepared from polyurethane resin solution, inorganic nano-class powder, co-disperser, modifier and solvent through vacuum drying of inorganic nano-class powder, adding modifier, reaction, vacuum drying again, sequentially adding solvent, co-disperser, powder and polyurethane resin solution, high-speed dispersing, grinding by high-pressure homogenizing machine, metering, and conventionally preparing leather. The producing features excellent physical performance, high resistance to ageing, bacteria and mildew, and high effect to degradate pollutant, cleaning air and shield ultraviolet ray.
Description
One, technical field
The present invention relates to a kind of with the inorganic nanometer powder dispersion of materials in the technology of preparing of solvent borne polyurethane system and be applied to the production of polyurethane leather, prepare the technology of functional synthetic leather, belong to the tanning technology field.This dispersion system can be applicable in the preparation production of Synthetic Leather, polyurethane artificial leather.
Two, background technology
Urethane (PU) synthetic leather is applied to the multiple space of social construction and life area, and it has feel and good, the wear-resisting anti-solvent of breathable moisture permeability tool, high strength, application make things convenient for estimable advantages such as extensive.Polyurethane leather adopts mainly that fabricbases such as polyurethane solution and non-woven fabrics, nylon loop, woven are done, wet processes forms, and this type of conventional urethane leather exists easy breed bacteria, the easy defective such as aging, uvioresistant weak effect of going mouldy.
Nano material is meant that particle diameter has the material of specific physical chemical property between the 1-100 nanometer, and the generalized nano material also comprises has unidimensional length between the 1-100 nanometer or the material with nanostructure in the three-dimensional structure.Because characteristics such as the quantum size effect of nano material, interfacial effect, small-size effect, macro quanta tunnel effect, nano material and nano composite material embody a lot of totally different performance such as selectivity of photochemical catalysis, catalyzed reaction, opto-electronic conversion, strong adsorption effect, inorganic-organic hybrid or the like in conventional material, thereby nano material is obtained in fields such as military affairs, aerospace, electronics, chemical, novel materials or are widely used.But there are a lot of technical difficult problems in nano material in using, and as how overcoming the agglomeration of nano material, guarantees that nano material reaches good dispersion state etc. in using base material.
Three, summary of the invention
The object of the present invention is to provide a kind of deficiency that can overcome prior art, have the physicals better, ageing-resistant, antibacterial and mouldproof sex change than conventional polyurethanes leather can inorganic nanometer powder material modification polyurethane leather and preparation method thereof, and this inorganic nanometer powder material modification polyurethane leather also has functions such as degraded noxious pollutant and the performance that purifies air, shielding ultraviolet rays.
The objective of the invention is to be achieved through the following technical solutions:
In view of above-mentioned prior art present situation, the present invention adopt a kind of special preparation technology with several nano inorganic powder dispersion of materials in the solvent borne polyurethane system and reach the good distribution effect, and be applied to synthetic leather production, successfully made several nano-material modified Synthetic Leathers.
Technical solution of the present invention is as follows:
Divide powder formula (by weight) to be
Polyurethane resin solution is joined for 100 parts
Inorganic nanometer powder material 1-50 part
Dispersion aids 0.5-10 part
Properties-correcting agent 1-5 part
Solvent 0-50 part
The urethane resin that is used for the present invention can be the solubility urethane resin of any kind.Press the polyvalent alcohol classification and can be polyester type, polyether-type, poly-carbon type and copoly type etc.; Press the isocyanic ester classification and can be TDI type, MDI type, HDI type, IPDI type, H12MDI type and copoly type etc.; Press the chainextender classification and can be alcohols chainextender and amine chain extender etc.;
The inorganic nanometer powder material that is used for the present invention can be materials such as nano titanium oxide, nano zine oxide, nano-calcium carbonate, nano-sized magnesium hydroxide, and present technique also is fit to other inorganic nanometer powder materials simultaneously;
The auxiliary agent that uses among the present invention comprises solvent, properties-correcting agent, dispersion aids etc.Wherein solvent can be acetone, butanone, pimelinketone, ethyl acetate, dimethylformamide, tetrahydrofuran (THF) etc.; Properties-correcting agent can be that properties-correcting agent, silicon are that properties-correcting agent, titanic acid ester are properties-correcting agent etc. for fluorine; Dispersion aids can be that dispersion agent, fluorine are dispersion agent etc. for acrylic acid series dispersion agent, silicon.
The equipment that the present invention adopts is:
High speed dispersor, fluidized-bed reactor, vacuum dryer, high pressure homogenization machine etc.
The technological process that the present invention adopts is as follows:
1. inorganic nanometer powder is carried out vacuum-drying;
2. the powder in fluidized-bed reactor adds properties-correcting agent;
3. with vacuum dryer powder is carried out the vacuum-drying second time;
4. the order of pressing solvent, dispersion aids, powder, polyurethane resin solution adds high speed dispersor, selects processing temperature and time according to the material viscosity and the performance of different ingredients, fully grinds by the high pressure homogenization machine again, and this process is capable of circulation carries out;
5. dispersion effect reaches metering packing after the standard;
6. be added into urethane resin or use separately according to different purposes, adopt conventional artificial tanning's Technology to obtain relevant nanometer material modification polyurethane leather.
Adopt the polyurethane leather of this technology preparation to have, and have and comprise the degraded noxious pollutant and the performance that purifies air, specific functions such as shielding ultraviolet rays performance than better physicals, ageing-resistant, the antibacterial and mouldproof sex change energy of conventional polyurethanes leather.
Four, embodiment
Provide specific embodiments of the present invention below, further specify the technology of the present invention solution.
Embodiment 1:
Adopt polyester urethane resin solution to be equipped with 50 parts of nano-ZnOs for 100 parts by weight, titanic acid ester is 5 parts of properties-correcting agent, 10 parts of dispersion aidss, 50 parts of solvents, make dispersion by aforementioned technology, this dispersion is added preparation synthetic leather product in the synthetic leather surface resin layer by 2: 100, can give the synthetic leather good antimicrobial property.
In the various composition proportion scopes of the present invention's prescription, solvent, dispersion aids, inorganic nanometer powder, properties-correcting agent can adopt various proportionings, and the The statistical testing results that obtains according to this similar scheme is as follows:
| Bacterial classification | Anti-microbial property 〉= |
| Intestinal bacteria | ????90％ |
| Streptococcus aureus | ????90％ |
| The mutation of withered grass gemma black | ????90％ |
Embodiment 2:
Adopt polyester urethane resin solution to be equipped with 1 part of nano titanium oxide for 100 parts by weight, fluorine is 1 part of properties-correcting agent, 0.5 part of dispersion aids, make dispersion by aforementioned technology, this dispersion is prepared the synthetic leather product as the synthetic leather surface resin layer, can give formaldehyde performance in the good degraded air of synthetic leather.
In the various composition proportion scopes of the present invention's prescription, solvent, dispersion aids, inorganic nanometer powder, properties-correcting agent can adopt various proportionings, and the The statistical testing results that obtains according to this similar scheme is as follows:
| Time (hr) | Blank concentration of formaldehyde (mg/m3) | Concentration after degrading (mg/m3) | Purification efficiency (%) |
| ??2 | ????0.994 | ????0.263 | ????77.5 |
Embodiment 3:
Adopt polyester urethane resin solution to be equipped with 10 parts of nano titanium oxides, 10 parts of nano-ZnOs for 100 parts by weight, fluorine is 3 parts of properties-correcting agent, 5 parts of dispersion aidss, 35 parts of solvents, make dispersion by aforementioned technology, by adding at 3: 100 in the synthetic leather surface resin layer, containing and prepare the synthetic leather product in the resin pickup, can give synthetic leather good fungicidal properties this dispersion by adding base cloth at 2: 100.
In the various composition proportion scopes of the present invention's prescription, solvent, dispersion aids, inorganic nanometer powder, properties-correcting agent can adopt various proportionings, and the The statistical testing results that obtains according to this similar scheme is as follows:
| Sample | Fungicidal properties (level) |
| Nano-modified synthetic leather | 0 grade |
| Common synthetic leather | 3 grades |
More than three class embodiments all can reach purpose of the present invention, the inorganic nanometer powder material modification polyurethane leather of producing all has better physicals, ageing-resistant, antibacterial and mouldproof sex change energy than the conventional polyurethanes leather, functions such as the degraded noxious pollutant and the performance that purifies air, shielding ultraviolet rays.
Claims (10)
1, a kind of inorganic nanometer powder material modification polyurethane leather is characterized in that branch powder formula (by weight) is
Polyurethane resin solution is joined for 100 parts
Inorganic nanometer powder material 1-50 part
Dispersion aids 0.5-10 part
Properties-correcting agent 1-5 part
Solvent 0-50 part
2,, it is characterized in that described urethane resin can be the solubility urethane resin of any kind according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1.
3,, it is characterized in that described urethane resin can be polyester type or polyether-type or poly-carbon type or copoly type etc. by the polyvalent alcohol classification according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1.
4,, it is characterized in that described urethane resin can be TDI type or MDI type or HDI type or IPDI type or H by the isocyanic ester classification according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1
12MDI type or copoly type etc.
5,, it is characterized in that described urethane resin can be alcohols chainextender or amine chain extender etc. by the chainextender classification according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1.
6, according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1, it is characterized in that described inorganic nanometer powder material can be materials such as nano titanium oxide or nano zine oxide or nano-calcium carbonate or nano-sized magnesium hydroxide.
7,, it is characterized in that also being fit to other inorganic nanometer powder materials according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1;
8,, it is characterized in that this inorganic nanometer powder material modification polyurethane leather has objectionable impurities air purification functions such as antibiotic, mildew-resistant, decomposing formaldehyde according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1.
9,, it is characterized in that described solvent can be acetone or butanone or pimelinketone or ethyl acetate or dimethylformamide or tetrahydrofuran (THF) etc. according to the described a kind of inorganic nanometer powder material modification polyurethane leather of claim 1; Described properties-correcting agent can be that properties-correcting agent or silicon are that properties-correcting agent or titanic acid ester are properties-correcting agent etc. for fluorine; Dispersion aids can be that dispersion agent or fluorine are dispersion agent etc. for acrylic acid series dispersion agent or silicon.
10, a kind of preparation method of inorganic nanometer powder material modification polyurethane leather is characterized in that its technological process is as follows:
(1) inorganic nanometer powder carries out vacuum-drying;
(2) powder in fluidized-bed reactor adds properties-correcting agent;
(3) with vacuum dryer powder is carried out the vacuum-drying second time;
(4) order according to solvent, dispersion aids, powder, polyurethane resin solution adds high speed dispersor, selects processing temperature and time according to the material viscosity and the performance of different ingredients, fully grinds by the high pressure homogenization machine again, and this process is capable of circulation carries out;
(5) dispersion effect reaches metering packing after the standard;
(6) be added into urethane resin or use separately according to different purposes, adopt conventional artificial tanning's Technology to obtain relevant nanometer material modification polyurethane leather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03138868XA CN100516138C (en) | 2003-07-29 | 2003-07-29 | Polyurethane leather modified by inorganic nano powder mateial and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03138868XA CN100516138C (en) | 2003-07-29 | 2003-07-29 | Polyurethane leather modified by inorganic nano powder mateial and preparation method |
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| Publication Number | Publication Date |
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| CN1519274A true CN1519274A (en) | 2004-08-11 |
| CN100516138C CN100516138C (en) | 2009-07-22 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774099A (en) * | 2012-08-10 | 2012-11-14 | 昆山乔锐金属制品有限公司 | Composite leather material |
| CN103589311A (en) * | 2013-10-16 | 2014-02-19 | 国家电网公司 | Preparation method of titanate-modified nano cerium oxide/polyurethane composite paint |
| CN105133366A (en) * | 2015-07-17 | 2015-12-09 | 浙江锦尚合成革有限公司 | Environment-protective synthetic leather and preparation method thereof |
| CN105155293A (en) * | 2015-07-17 | 2015-12-16 | 浙江锦尚合成革有限公司 | Anti-microbial synthetic leather and preparation method thereof |
| CN105176053A (en) * | 2015-07-17 | 2015-12-23 | 浙江锦尚合成革有限公司 | Synthetic leather slurry and preparation method thereof |
| CN106189188A (en) * | 2016-08-04 | 2016-12-07 | 许勤峰 | A kind of PU leathering layer composition |
| CN106220815A (en) * | 2016-07-28 | 2016-12-14 | 东莞市雄林新材料科技股份有限公司 | A kind of nano material dispersion technology for TPU |
| CN109679066A (en) * | 2018-12-05 | 2019-04-26 | 高伟 | A kind of sterilization UV resistance bike saddle material and preparation method thereof |
| CN110387749A (en) * | 2019-07-30 | 2019-10-29 | 浙江百得利制革有限公司 | A kind of preparation process of sofa artificial leather |
-
2003
- 2003-07-29 CN CNB03138868XA patent/CN100516138C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774099A (en) * | 2012-08-10 | 2012-11-14 | 昆山乔锐金属制品有限公司 | Composite leather material |
| CN103589311A (en) * | 2013-10-16 | 2014-02-19 | 国家电网公司 | Preparation method of titanate-modified nano cerium oxide/polyurethane composite paint |
| CN103589311B (en) * | 2013-10-16 | 2016-06-29 | 国家电网公司 | A kind of preparation method of titanate esters modified nano cerium oxide/polyurethane Composite Coating |
| CN105133366A (en) * | 2015-07-17 | 2015-12-09 | 浙江锦尚合成革有限公司 | Environment-protective synthetic leather and preparation method thereof |
| CN105155293A (en) * | 2015-07-17 | 2015-12-16 | 浙江锦尚合成革有限公司 | Anti-microbial synthetic leather and preparation method thereof |
| CN105176053A (en) * | 2015-07-17 | 2015-12-23 | 浙江锦尚合成革有限公司 | Synthetic leather slurry and preparation method thereof |
| CN105176053B (en) * | 2015-07-17 | 2018-06-19 | 浙江锦尚合成革有限公司 | A kind of synthetic leather slurry and preparation method thereof |
| CN106220815A (en) * | 2016-07-28 | 2016-12-14 | 东莞市雄林新材料科技股份有限公司 | A kind of nano material dispersion technology for TPU |
| CN106189188A (en) * | 2016-08-04 | 2016-12-07 | 许勤峰 | A kind of PU leathering layer composition |
| CN109679066A (en) * | 2018-12-05 | 2019-04-26 | 高伟 | A kind of sterilization UV resistance bike saddle material and preparation method thereof |
| CN110387749A (en) * | 2019-07-30 | 2019-10-29 | 浙江百得利制革有限公司 | A kind of preparation process of sofa artificial leather |
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| Publication number | Publication date |
|---|---|
| CN100516138C (en) | 2009-07-22 |
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