CN103640293A - Mobile-phone film with pu (Polyurethane) coating layer - Google Patents
Mobile-phone film with pu (Polyurethane) coating layer Download PDFInfo
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- CN103640293A CN103640293A CN201310613626.5A CN201310613626A CN103640293A CN 103640293 A CN103640293 A CN 103640293A CN 201310613626 A CN201310613626 A CN 201310613626A CN 103640293 A CN103640293 A CN 103640293A
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Abstract
The invention discloses a mobile-phone film with a pu (Polyurethane) coating layer. The mobile-phone film consists of a base film made of pet materials and the polyurethane coating layer, wherein the polyurethane coating layer is formed by coating a polyurethane coating composite on the pet base film; the polyurethane coating composite comprises the following materials in parts by weight: 70-84 parts of a polyurethane prepolymer, 1-15 parts of simethicone, 2 parts of a chain extender, 1 part of a cross-linking agent, 4 parts of a plasticizing agent, 1 part of a catalyst, 2 parts of a defoaming agent and 5 parts of a filling agent. The mobile-phone film disclosed by the invention has the advantages of relatively high heat resistance and weather resistance and long service life.
Description
Technical field
The present invention relates generally to a kind of mobile phone film, particularly a kind of mobile phone film with polyurethane coating.
Background technology
The pu coating mobile phone film that the object of this invention is to provide a kind of heat resistance, acid-alkali-corrosive-resisting better performances.
Along with the continuous lifting of mobile phone temperature, the commercial value of its periphery industrial chain is also increasing, and a kind of as mobile phone periphery industry of safeguard film for cellular phone, its application and research is also more and more extensive.At present, safeguard film for cellular phone generally adopts PET material as base material, because PET material has it, has the advantages such as excellent physical property, chemical property and dimensional stability, the transparency, recuperability, then is coated with coating material and is made.
The material that can be used as mobile phone membrane coat has a lot; use comparatively generally acrylic coating, its price comparison is cheap, but uses the safeguard film for cellular phone venting quality of acrylic coating poor; and easily on mobile phone screen, leave cull, affect the mobile phone screen life-span.Although and silica-gel coating has solved the problem of gas permeability, the technical problem that leaves cull on mobile phone screen is not still resolved.Polyurethane coating, is called again PU coating, has advantages of wear-resisting, moisture-proof, venting quality is good and do not have cull remaining.But the general shortcoming but with polyurethane material, i.e. its heat resistance, acid-alkali-corrosive-resisting poor-performing, affect service life of mobile phone film.
Summary of the invention
Technical scheme of the present invention is: described pu coating mobile phone film, basement membrane and polyurethane coating by pet material form, described polyurethane coating is coated on described pet basement membrane and is formed by polyurethane coating composition, and described polyurethane coating composition is made by following weight portion raw material:
Base polyurethane prepolymer for use as: 70 ~ 84; Dimethicone: 1 ~ 15; Chain extender: 2; Crosslinking agent: 1; Plasticizer: 4; Catalyst: 1; Defoamer: 2; Filler: 5.
As polyurethane coating composition described in the preferred embodiment of the present invention, by following weight portion raw material, made: described polyurethane coating composition is made by following weight portion raw material: base polyurethane prepolymer for use as: 75 ~ 78; Dimethicone: 7 ~ 10; Chain extender: 2; Crosslinking agent: 1; Plasticizer: 4; Catalyst: 1; Defoamer: 2; Filler: 5.
As polyurethane coating composition described in the preferred embodiment of the present invention, by following weight portion raw material, made: base polyurethane prepolymer for use as: 75; Dimethicone: 10; Chain extender: 2; Crosslinking agent: 1; Plasticizer: 4; Catalyst: 1; Defoamer: 2; Filler: 5.
Further, described chain extender is diglycol, and described crosslinking agent is trimethylolpropane, and described plasticizer is o-phthalic acid dibutyl ester, and described filler is nano zine oxide.
That the safeguard film for cellular phone of polyurethane coating made has advantages of is wear-resisting, moisture-proof, venting quality is good and do not have cull remaining, but the heat resistance of polyurethane coating, against weather are poor, has affected the service life of mobile phone film.Organosilicon is a stable skeleton being alternately comprised of Si-O-Si key, there is fabulous high and low temperature resistance and fabulous chemical stability, for improving the heat resistance of polyurethane coating, the present invention adopts dimethicone to carry out modification to polyurethane coating, by Organo-silicon on Polyurethane performed polymer, carry out block or graft reaction, to improve the heat resistance of polyurethane coating.Pu coating mobile phone film of the present invention has good heat resistance, against weather, the advantage of long service life.
The specific embodiment
It is can make polyurethane have good heat-proof quality because of the polyurethane that has added nano zine oxide that the present invention adopts nano zine oxide filler.Found through experiments when adding 1 part of nano zine oxide, now the mechanical property of polyurethane has obtained very large raising, and now polyurethane has good effect of heat insulation.But when adding 4 parts of nano zine oxides to, mechanical property but declines to a great extent, continue to add the consumption of nano zine oxide, the mechanical property of polyurethane has been got back to be increased slowly.Analyzing its reason, may be because when adding a small amount of nano zine oxide, due to the special effects of nano particle, greatly improved the mechanical property of polyurethane.But when addition increases, due to the agglomeration of nano particle, lost the special effects of the nano particle of original nano zine oxide, then continued to add nano oxidized property, only played the effect of adding common zinc ion, the mechanical strength of polyurethane coating slowly increases.Therefore the amount of additive nano zine oxide is added 1 ~ 5 part, take 3 parts as good.
Below in conjunction with series of experiments example, the present invention is described further:
Experimental example 1
Formula: base polyurethane prepolymer for use as: 84; Dimethicone: 1; Chain extender: 2; Crosslinking agent: 1; Plasticizer: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Wherein, described chain extender is diglycol, and described crosslinking agent is trimethylolpropane, and described plasticizer is o-phthalic acid dibutyl ester, and described filler is nano zine oxide.
Experimental example 2
Formula: base polyurethane prepolymer for use as: 83; Dimethicone: 2; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 3
Formula: base polyurethane prepolymer for use as: 82; Dimethicone: 3; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 4
Formula: base polyurethane prepolymer for use as: 81; Dimethicone: 4; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 5
Formula: base polyurethane prepolymer for use as: 80; Dimethicone: 5; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 6
Formula: base polyurethane prepolymer for use as: 79; Dimethicone: 6; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 7
Formula: base polyurethane prepolymer for use as: 78; Dimethicone: 7; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 8
Formula: base polyurethane prepolymer for use as: 77; Dimethicone: 8; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 9
Formula: base polyurethane prepolymer for use as: 76; Dimethicone: 9; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 10
Formula: base polyurethane prepolymer for use as: 75; Dimethicone: 10; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 11
Formula: base polyurethane prepolymer for use as: 74; Dimethicone: 11; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 12
Formula: base polyurethane prepolymer for use as: 73; Dimethicone: 12; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 13
Formula: base polyurethane prepolymer for use as: 72; Dimethicone: 13; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 14
Formula: base polyurethane prepolymer for use as: 71; Dimethicone: 14; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Experimental example 15
Formula: base polyurethane prepolymer for use as: 70; Dimethicone: 15; Diglycol: 2; Trimethylolpropane: 1; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Comparative example 1
Formula: base polyurethane prepolymer for use as: 85; Diglycol: 2; Trimethylolpropane: 2; O-phthalic acid dibutyl ester: 4; Catalyst: 1; Defoamer: 2; Nano zine oxide: 3.
Polyurethane coating after the modification of experimental example 1 ~ experimental example 15 is made into the coated film after 0.5mm.
The coated film of experimental example 1 ~ experimental example 15 mades is done to thermal weight loss test, and experimental result is as follows:
| ? | Experimental example 1 | Experimental example 2 | Experimental example 3 | Experimental example 4 | Experimental example 5 | Experimental example 6 | Experimental example 7 | Experimental example 8 |
| Thermal response start temperature (℃) | 222.1 | 227.3 | 232.5 | 237.9 | 243.6 | 248.5 | 252.4 | 255.3 |
| Thermal response final temperature (℃) | 615.2 | 630.5 | 644.3 | 659.2 | 670.0 | 684.2 | 698.3 | 704.9 |
| ? | Experimental example 9 | Experimental example 10 | Experimental example 11 | Experimental example 12 | Experimental example 13 | Experimental example 14 | Experimental example 15 | Comparative example 1 |
| Thermal response start temperature (℃) | 256.5 | 262.4 | 271.7 | 277.8 | 273.5 | 280.1 | 289.2 | 221.5 |
| Thermal response final temperature (℃) | 724.6 | 733.2 | 741.8 | 751.4 | 757.3 | 752.9 | 768.8 | 614.7 |
From experimental data, can reach a conclusion, along with adding of dimethicone, after modification, the heat resistance of polyurethane coating improves constantly, and proves that the stable on heating scheme that adopts dimethyl-silicon oil modified urethanes to be coated with is practical.
The coated film of experimental example 1 ~ experimental example 15 mades is done to hot strength test, and experimental result is as follows:
| ? | Experimental example 1 | Experimental example 2 | Experimental example 3 | Experimental example 4 | Experimental example 5 | Experimental example 6 | Experimental example 7 | Experimental example 8 |
| Hot strength (Mpa) | 1.61 | 1.75 | 1.96 | 2.05 | 2.11 | 2.17 | 2.21 | 2.29 |
| ? | Experimental example 9 | Experimental example 10 | Experimental example 11 | Experimental example 12 | Experimental example 13 | Experimental example 14 | Experimental example 15 | Comparative example 1 |
| Hot strength (Mpa) | 2.08 | 1.91 | 1.87 | 1.75 | 1.68 | 1.65 | 1.61 | 1.46 |
From experimental data, can see, the hot strength of experimental example 7, experimental example 8, experimental example 9 coatings is higher, according to interpretation reason, owing to adding a small amount of dimethicone, base polyurethane prepolymer for use as is by carrying out block or grafting with dimethicone, and the hot strength of the polyurethane coating after modification improves constantly.But after block or grafting reach capacity, continue to add dimethicone, organosilicon deposits with micromolecular form, because intermolecular active force is far smaller than the active force in polymer molecule, therefore, the hot strength of smearing declines.Therefore the best proportioning that can determine the weight portion that use organic silicon modified polyurethane performed polymer adds is 7 ~ 8 parts.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. a pu coating mobile phone film, basement membrane and polyurethane coating by pet material form, described polyurethane coating is coated on described pet basement membrane and is formed by polyurethane coating composition, it is characterized in that, described polyurethane coating composition is made by following weight portion raw material:
Base polyurethane prepolymer for use as: 70 ~ 84;
Dimethicone: 1 ~ 15;
Chain extender: 2;
Crosslinking agent: 1;
Plasticizer: 4;
Catalyst: 1;
Defoamer: 2;
Filler: 5.
2. mobile phone film as claimed in claim 1, is characterized in that, described polyurethane coating composition is made by following weight portion raw material:
Base polyurethane prepolymer for use as: 75 ~ 78;
Dimethicone: 7 ~ 10;
Chain extender: 2;
Crosslinking agent: 1;
Plasticizer: 4;
Catalyst: 1;
Defoamer: 2;
Filler: 5.
3. mobile phone film as claimed in claim 1, is characterized in that, described polyurethane coating composition is made by following weight portion raw material:
Base polyurethane prepolymer for use as: 75;
Dimethicone: 10;
Chain extender: 2;
Crosslinking agent: 1;
Plasticizer: 4;
Catalyst: 1;
Defoamer: 2;
Filler: 5.
4. the arbitrary mobile phone film as described in claim 1 ~ 3, is characterized in that, described chain extender is diglycol, and described crosslinking agent is trimethylolpropane, and described plasticizer is o-phthalic acid dibutyl ester, and described filler is nano zine oxide.
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| CN201310613626.5A CN103640293A (en) | 2013-11-27 | 2013-11-27 | Mobile-phone film with pu (Polyurethane) coating layer |
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| CN201310613626.5A CN103640293A (en) | 2013-11-27 | 2013-11-27 | Mobile-phone film with pu (Polyurethane) coating layer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965496A (en) * | 2014-05-10 | 2014-08-06 | 宁波东旭成新材料科技有限公司 | Polyester film with too-high temperature protection function |
| CN105238032A (en) * | 2015-11-13 | 2016-01-13 | 淄博正大聚氨酯有限公司 | Anti-radiation mobile phone film and preparation method thereof |
| CN108102441A (en) * | 2017-12-21 | 2018-06-01 | 定远县保尔工贸有限公司 | A kind of anticorrosion mobile phone tempered glass film |
| CN108117781A (en) * | 2017-12-21 | 2018-06-05 | 定远县保尔工贸有限公司 | A kind of mobile phone of resistance to greasy dirt tempered glass film |
| CN108219548A (en) * | 2017-12-21 | 2018-06-29 | 定远县保尔工贸有限公司 | A kind of antiultraviolet mobile phone tempered glass film |
| CN108250816A (en) * | 2017-12-21 | 2018-07-06 | 定远县保尔工贸有限公司 | A kind of high abrasion mobile phone tempered glass film |
| CN110591531A (en) * | 2019-09-25 | 2019-12-20 | 马鞍山吉祥光电科技有限公司 | Method for preparing corrosion-resistant flame-retardant coating on surface of street lamp pole |
| CN110922905A (en) * | 2019-12-10 | 2020-03-27 | 厦门理工学院 | Flexible light complex film |
| WO2023103480A1 (en) * | 2021-12-07 | 2023-06-15 | 襄阳三沃航天薄膜材料有限公司 | High-performance polyurethane pressure-sensitive adhesive, preparation method therefor, and application thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965496A (en) * | 2014-05-10 | 2014-08-06 | 宁波东旭成新材料科技有限公司 | Polyester film with too-high temperature protection function |
| CN103965496B (en) * | 2014-05-10 | 2016-04-27 | 宁波东旭成新材料科技有限公司 | A kind of polyester film with excessive temperature defencive function |
| CN105238032A (en) * | 2015-11-13 | 2016-01-13 | 淄博正大聚氨酯有限公司 | Anti-radiation mobile phone film and preparation method thereof |
| CN105238032B (en) * | 2015-11-13 | 2017-11-17 | 淄博正大聚氨酯有限公司 | Antiradiation mobile phone pad pasting and preparation method thereof |
| CN108102441A (en) * | 2017-12-21 | 2018-06-01 | 定远县保尔工贸有限公司 | A kind of anticorrosion mobile phone tempered glass film |
| CN108117781A (en) * | 2017-12-21 | 2018-06-05 | 定远县保尔工贸有限公司 | A kind of mobile phone of resistance to greasy dirt tempered glass film |
| CN108219548A (en) * | 2017-12-21 | 2018-06-29 | 定远县保尔工贸有限公司 | A kind of antiultraviolet mobile phone tempered glass film |
| CN108250816A (en) * | 2017-12-21 | 2018-07-06 | 定远县保尔工贸有限公司 | A kind of high abrasion mobile phone tempered glass film |
| CN110591531A (en) * | 2019-09-25 | 2019-12-20 | 马鞍山吉祥光电科技有限公司 | Method for preparing corrosion-resistant flame-retardant coating on surface of street lamp pole |
| CN110922905A (en) * | 2019-12-10 | 2020-03-27 | 厦门理工学院 | Flexible light complex film |
| CN110922905B (en) * | 2019-12-10 | 2022-04-26 | 厦门理工学院 | Flexible light complex film |
| WO2023103480A1 (en) * | 2021-12-07 | 2023-06-15 | 襄阳三沃航天薄膜材料有限公司 | High-performance polyurethane pressure-sensitive adhesive, preparation method therefor, and application thereof |
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Application publication date: 20140319 |