CN101654550A - Composite additive capable of improving aging performance of polyurethane and application thereof - Google Patents
Composite additive capable of improving aging performance of polyurethane and application thereof Download PDFInfo
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- CN101654550A CN101654550A CN200910112471A CN200910112471A CN101654550A CN 101654550 A CN101654550 A CN 101654550A CN 200910112471 A CN200910112471 A CN 200910112471A CN 200910112471 A CN200910112471 A CN 200910112471A CN 101654550 A CN101654550 A CN 101654550A
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- composite additive
- aging resistance
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- resistant polyurethane
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Abstract
The invention discloses a composite additive capable of improving the aging performance of polyurethane and an application thereof. The high-efficiency ageing-resistant composite additive is formed bykneading substances such as nanometer silic, and the like by a kneading agent, and downstream factories can greatly improve various anti-aging performances of a polyurethane polymer material by proportionally adding the composite additive to the polyurethane polymer material.
Description
Technical field
The present invention relates to a kind of polyurethane-modified product, particularly a kind of composite additive and application thereof that improves the resistant polyurethane aging resistance.
Background technology
The polyurethane high molecule material has advantages such as oil resistant, wear-resisting, cold-resistant, anti-flexing, physical strength be good, has excellent comprehensive performances, but have also that humidity resistance is poor, stability to hydrolysis is poor, light color, the shortcoming of aging resistance difference such as anti-mould not.By its urethane of making (PU) synthetic leather is to replace the ideal material of natural leather goods in the world at present, is mainly used in fields such as footwear, dress material, case and bag bag, ball, furniture, automobile, flexible cell, pipeline, conveying belt, canvas.Because the deficiency of PU leather ageing-resistant performance aspect, be aged to and make that product surface produces glossiness reduction, be full of cracks, efflorescence, serious problems such as come off, shortened time limit of service greatly, traditional urethane can not satisfy higher service requirements.Obviously, if can overcome the shortcoming of the ageing-resistant difference of PU leather, then its range of application will further enlarge.
Aging reaction can take place in urethane resin, is because the ehter bond that contains of polyurethane molecular, ester bond, phenyl ring, carbamate etc. all are not enough stable structures.In the production use, residual or pollute ubiquitous oxygen, ultraviolet ray, mould and the water etc. of some metal ion, superoxide, nature, all cause DeRs such as polyurethane high molecule generation molecular transposition, enzyme liberating, free radical reaction and hydrolysis easily, produce aging, simultaneously, the remaining end carboxyl that the ester splitting of chain is produced is the process of autocatalytically degraded further, and particularly under the pyritous situation, DeR will speed up carries out.Can know that from top analysis molecular transposition, free radical reaction, degradation by bacteria and hydrolysis are the most important reaction mechanisms of urethane aged, also be to produce the main factor of aged.
Summary of the invention
The objective of the invention is at urethane aged reason and aged reaction mechanism, a kind of composite additive that can comprehensively comprehensively solve polyurethane high molecule material ageing-resistant performance is provided.
A kind of composite additive that improves the resistant polyurethane aging resistance, it comprises following composition: A, a kind of can combining powdery, liquid state and granular organic and inorganic thing, and has the kneading agent of good comixing compatibility with urethane resin, consumption is by total prescription, be 75～85 parts by weight
B, nano silicon, its weight ratio occupy imitates 40～80% of composition.
Nano silicon in the composite additive is distributed in the middle of the chain of macromolecular material, because characteristics such as the serious coordination deficiency of nano-silica surface, huge specific surface area and surface are oxygen debt, has extremely strong activity, show unusual physicochemical property, can significantly improve the various ageing resistances of polyurethane high molecule, improve the intensity and the wear resistance of macromolecular material simultaneously, improve the smooth finish of material surface.More rare is its chemical stabilization, has guaranteed the persistence of antiageing effect.Kneading agent wherein can be combined powdery, liquid state and granular organic-inorganic thing, and have good comixing compatibility with urethane resin.
Described composite additive also includes oxidation inhibitor, and its weight ratio is occupied 10～50% of effect composition.
Oxidation inhibitor can be eliminated the free radical that has just produced in the polyurethane high molecule, perhaps impels the decomposition of hydroperoxide, stops the carrying out of chain reaction.Effectively prevent the heat-resisting oxidation of polyurethane high molecule.
Described composite additive also includes wide spectrum nano-antibacterial powder, and its weight ratio is occupied 4～8% of effect composition.
Described wide spectrum nano-antibacterial powder has anti-comparatively high temps, higher-security, higher long-acting bactericidal effect, can be scattered in organic solvent, resistance is difficult for producing, almost all bacterial classifications (bacterium, fungi, yeast, mould, algae etc.) all there is the extremely strong ability of killing, can effectively prevents the enzyme liberating of urethane resin.
Described composite additive also includes UV light absorber, and its weight ratio is occupied 2～4% of effect composition.
UV light absorber can be improved the photo-oxidative degradation effect of ultraviolet ray to urethane effectively.
Described composite additive also includes hydrolysis stabilizer, and its weight ratio is occupied 1～5% of effect composition.
Hydrolysis stabilizer, can with the carboxylic acid reaction in the polyurethane high molecule material, generate ureide derivative, can significantly improve the hydrolysis and the hydrothermal aging performance of urethane.
Can be used for kneading agent of the present invention has a lot, below be the applicant provide several:
Kneading agent of the present invention or be urethane resin or for vinyl chloride-vinyl acetate resin or for acrylic resin or for Resins, epoxy or for nitrated resin, or be their both combinations, or be their several combinations, and the solvent that dilutes usefulness.
Another object of the present invention also is to provide the application of this composite additive.
Being applied as of composite additive of the present invention: above-mentioned composite additive, add by 5～20% of commercially available PU resin (viscosity 80,000 cps/25 ℃, solid content is 30%) weight ratio, other just can obtain the obvious results ageing-resistant performance by operated in accordance with conventional methods.
In sum, the invention has the advantages that:
The present invention is by mediating agent, long-acting and fugitive having, organic and inorganic, particulate state, powdery and liquid various ageing-resistant auxiliary agent, kneaded together, form the high-efficiency ageing-resistant composite additive, downstream producer is as long as make an addition in proportion in the polyurethane high molecule material, just can increase the various ageing resistances of its material greatly, improve the intensity and the wear resistance of macromolecular material simultaneously, improve the smooth finish of material surface.Therefore,, add easy to usely, significantly simplified operating procedure for downstream producer.
Embodiment
Below in conjunction with embodiment the present invention is described in more detail.
Embodiment 1
The preparation example of the composite additive of improvement urethane resin ageing-resistant performance of the present invention:
1, proportioning table: (by weight)
| Sequence number | Title | Consumption |
| ??1 | Nano silicon | ??40 |
| ??2 | Oxidation inhibitor | ??50 |
| ??3 | The nano-antibacterial powder | ??6 |
| ??4 | UV light absorber | ??2 |
| ??5 | Hydrolysis-stable | ??2 |
| ??6 | Urethane resin | ??150 |
| ??7 | Solvent | ??150 |
2, preparation: with the urethane resin in the proportioning table, solvent, oxidation inhibitor and UV light absorber, add in the mixing tank, fully stir, be heated to 60 ℃, make the dissolving of oxidation inhibitor and UV light absorber, add its excess-three item again, after stirring, grind, filter and package.Make the composite additive that contains effective composition 25%.
The application example of the composite additive of improvement urethane resin ageing-resistant performance of the present invention
1, proportioning table:
The composite additive that application prepares, by above-mentioned prescription, with the PU synthetic leather that traditional technology is made, its ageing-resistant performance can improve 1.5～2 times.
It is same as the prior art that present embodiment is not stated part.
Embodiment 2
1, proportioning table: (by weight)
| Sequence number | Title | Consumption |
| ??1 | Nano silicon | ??60 |
| ??2 | Oxidation inhibitor | ??30 |
| ??3 | The nano-antibacterial powder | ??6 |
| ??4 | UV light absorber | ??2 |
| ??5 | Hydrolysis-stable | ??2 |
| ??6 | Urethane resin | ??200 |
| ??7 | Solvent | ??200 |
2, preparation: with the urethane resin in the proportioning table, solvent, oxidation inhibitor and UV light absorber, add in the mixing tank, fully stir, be heated to 60 ℃, make the dissolving of oxidation inhibitor and UV light absorber, add its excess-three item again, after stirring, grind, filter and package.Make the composite additive that contains effective composition 20%.
The application example of the composite additive of improvement urethane resin ageing-resistant performance of the present invention
1, proportioning table:
The composite additive that application prepares, by above-mentioned prescription, with the PU synthetic leather that traditional technology is made, its ageing-resistant performance can improve 1.5～2 times.
It is same as the prior art that present embodiment is not stated part.
Embodiment 3
The preparation example of the composite additive of improvement urethane resin ageing-resistant performance of the present invention:
1, proportioning table: (by weight)
| Sequence number | Title | Consumption |
| ??1 | Nano silicon | ??80 |
| ??2 | Oxidation inhibitor | ??10 |
| ??3 | The nano-antibacterial powder | ??6 |
| ??4 | UV light absorber | ??2 |
| ??5 | Hydrolysis-stable | ??2 |
| ??6 | Urethane resin | ??250 |
| ??7 | Solvent | ??250 |
2, preparation: with the urethane resin in the proportioning table, solvent, oxidation inhibitor and UV light absorber, add in the mixing tank, fully stir, be heated to 60 ℃, make the dissolving of oxidation inhibitor and UV light absorber, add its excess-three item again, after stirring, grind, filter and package.Make the composite additive that contains effective composition 17%.Example 2: the application example of the composite additive of improvement urethane resin ageing-resistant performance of the present invention
1, proportioning table:
Use above-mentioned prescription, with the PU synthetic leather that traditional technology is made, its ageing-resistant performance can improve 1.5～2 times.
It is same as the prior art that present embodiment is not stated part.
Claims (7)
1. composite additive that improves the resistant polyurethane aging resistance, it comprises following composition:
A, a kind of can combining powdery, liquid state and granular organic and inorganic thing, and have the kneading agent of good comixing compatibility with urethane resin, consumption is 75～85 parts by weight by total prescription,
B, nano silicon, its weight ratio occupy imitates 40～80% of composition.
2. the composite additive of improvement resistant polyurethane aging resistance according to claim 1 is characterized in that: described composite additive also includes oxidation inhibitor, and its weight ratio is occupied 10～50% of effect composition.
3. the composite additive of improvement resistant polyurethane aging resistance according to claim 2 is characterized in that: described composite additive also includes wide spectrum nano-antibacterial powder, and its weight ratio is occupied 4～8% of effect composition.
4. the composite additive of improvement resistant polyurethane aging resistance according to claim 3 is characterized in that: described composite additive also includes UV light absorber, and its weight ratio is occupied 2～4% of effect composition.
5. the composite additive of improvement resistant polyurethane aging resistance according to claim 4 is characterized in that: described composite additive also includes hydrolysis stabilizer, and what its weight ratio was occupied the effect composition is 1～5%.
6. the composite additive of improvement resistant polyurethane aging resistance according to claim 1, it is characterized in that: kneading agent of the present invention or for urethane resin or for vinyl chloride-vinyl acetate resin or for acrylic resin or for Resins, epoxy or for nitrated resin, or be their both combinations, or be their several combinations, and the solvent of dilution usefulness.
7. the application of the composite additive of an improvement resistant polyurethane aging resistance as claimed in claim 1, it is characterized in that: described composite additive, by commercially available PU resin, by viscosity 80,000 cps/25 ℃, solid content is 30%, weight ratio is 5～20% to add preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910112471A CN101654550A (en) | 2009-09-09 | 2009-09-09 | Composite additive capable of improving aging performance of polyurethane and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910112471A CN101654550A (en) | 2009-09-09 | 2009-09-09 | Composite additive capable of improving aging performance of polyurethane and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101654550A true CN101654550A (en) | 2010-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910112471A Pending CN101654550A (en) | 2009-09-09 | 2009-09-09 | Composite additive capable of improving aging performance of polyurethane and application thereof |
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|---|---|
| CN (1) | CN101654550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955647A (en) * | 2010-07-09 | 2011-01-26 | 上海可艾可时装有限公司 | Nano synthetic leather |
| CN101956319A (en) * | 2010-07-09 | 2011-01-26 | 上海可艾可时装有限公司 | Nanometer PU (Polyurethane) artificial leather |
| WO2020203356A1 (en) * | 2019-03-29 | 2020-10-08 | 東レ株式会社 | Sheet-shaped article and manufacturing method therefor |
-
2009
- 2009-09-09 CN CN200910112471A patent/CN101654550A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955647A (en) * | 2010-07-09 | 2011-01-26 | 上海可艾可时装有限公司 | Nano synthetic leather |
| CN101956319A (en) * | 2010-07-09 | 2011-01-26 | 上海可艾可时装有限公司 | Nanometer PU (Polyurethane) artificial leather |
| WO2020203356A1 (en) * | 2019-03-29 | 2020-10-08 | 東レ株式会社 | Sheet-shaped article and manufacturing method therefor |
| JPWO2020203356A1 (en) * | 2019-03-29 | 2020-10-08 | ||
| JP7375760B2 (en) | 2019-03-29 | 2023-11-08 | 東レ株式会社 | Sheet-like product and its manufacturing method |
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Open date: 20100224 |