CN103084322A - High luminance gain metal curtain preparation method - Google Patents
High luminance gain metal curtain preparation method Download PDFInfo
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- CN103084322A CN103084322A CN2012105807126A CN201210580712A CN103084322A CN 103084322 A CN103084322 A CN 103084322A CN 2012105807126 A CN2012105807126 A CN 2012105807126A CN 201210580712 A CN201210580712 A CN 201210580712A CN 103084322 A CN103084322 A CN 103084322A
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Abstract
The invention discloses a high luminance gain metal curtain preparation method. The high luminance gain metal curtain preparation method comprises dosing, mixing, film manufacturing and baking processes sequentially. According to the dosing process, raw materials comprise, by weight, 100 parts of polyvinyl chloride (PVC) pastes, 3-10 parts of metal powder, 10-15 parts of anatase titanium dioxide, 70-85 parts of dioctyl phthalate or/and dioctyl adipate plasticizers, 3-8 parts of chlorination aliphatic ester surface treating agents, and 6-10 parts of epoxidized soybean oil heat stabilizers. The mixing process comprises the following steps: premixing all the raw materials in the dosing process S1, grinding sizing agents through a three-roll grinder, standing and dissolving, and dispersing through a dispersion machine. According to the film manufacturing process, a scraper coating machine coats the sizing agents obtained through the mixing process on a curtain blank in a scraping mode. According to the baking process, a subsection baking process with temperature increased successively is adopted for baking the curtain blank coated with the sizing agents in the scraping mode. Compared with the prior art, luminance gain of a metal curtain obtained through the method is high and can reach 3.0-3.5.
Description
Technical field
The present invention relates to a kind of glass micro-bead curtain, be specifically related to a kind of preparation method of high brightness gain metal curtain.
Background technology
At present, mostly the projection screen for film or video image projection is to be formed by polyvinyl chloride (PVC) thin layers of a black floor and a white.Traditional projection screen reflectivity (gain) parameter is low, and the color of image that causes projection to present is dark, need to just can see the image of projection in the space of dark clearly; And traditional projection screen scattering power is poor, and the image that projection presents can only just can be seen clearly in small angle.
In order to improve the drop shadow effect of projection screen, people have proposed a kind of at the sticking glass micro-bead curtain of glass microballoon and the metal curtain that adds the metal bisque on the curtain base of having sticked on the PVC film.The common defective of glass micro-bead curtain is to be afraid of tide, easily falls pearl.And by contrast, metal curtain is after-applied on the curtain base due to metal powder and mixed with resin, therefore there is no dry linting or is afraid of damp defective.The luminance gain of metal curtain on the structure that relies on metal curtain, I take charge of discovery, the luminance gain of metal curtain also depends on its preparation technology.
Summary of the invention
The object of the invention is to overcome the defective that exists in prior art, a kind of preparation method of high brightness gain metal curtain is provided.
For achieving the above object, technical scheme of the present invention is:
A kind of preparation method of high brightness gain metal curtain, the method obtain through S1 batching, S2 mixing, S3 masking and S4 roasting procedure successively.
At first, described S1 burden process refers to each raw material by following weight portion proportioning:
100 parts of PVC paste resins,
3 ~ 10 parts of metal powders,
10 ~ 15 parts of anatase thpe white powders,
Dioctyl phthalate is or/and 70 ~ 85 parts, dioctyl adipate plasticizer,
3 ~ 8 parts of chlorination fatty acid ester surface conditioning agents,
6 ~ 10 parts of epoxidized soybean oil heat stabilizers.
Here, adopt anatase thpe white powder but not rutile type titanium white, reason is that anatase thpe white powder has good covering and dispersiveness, and its whiteness is higher than rutile type titanium white; Adopt anatase thpe white powder can improve the luminance gain of metal curtain.
The Main Function of plasticizer is the locomitivity that increases polymer molecular chain, increases the plasticity of polymer, improves the effect of pliability and the circumnutating property of goods.Particularly dioctyl adipate is as plasticizer, and not only toxicity is low, but also the heat-resisting and weatherability that can increase goods cold resistance particularly, and the possibility of metal curtain surface heated discoloration is reduced, and guarantees that metal curtain has stable whiteness and luminance gain.
The present invention has also added a kind of chlorination fatty acid ester surface conditioning agent in formula, it can be the DA-8506XS chlorination fatty acid methyl ester of U.S. Dover company, such chlorination fatty acid ester surface conditioning agent has extraordinary metal wellability, can improve the adhesiveness of metal powder and PVC base system, its consumption is vital in the present invention.The concrete reason that produces this effect is: the ester group part of this chlorination fatty acid ester surface conditioning agent can form certain anchor cooperation use with the metal powder surface, and its moieties and resin matrix produce certain compatibility; For polyvinyl chloride, chlorination fatty acid ester surface conditioning agent and polyvinyl chloride all have the chloro group especially, so compatibility between the two is very outstanding.The infiltrating raising of metal powder also helps the luminance gain of improving metal curtain.
Secondly, described S2 mixed processes refers to described raw material is mixed in the steps below:
S2-1, with all raw material premixs described in the S1 burden process, the mixed liquor premix with PVC paste resin and plasticizer and surface conditioning agent adds heat stabilizer subsequently, adds at last anatase thpe white powder and metal powder to carry out premix;
S2-2, use the three-roll grinder ground slurry, regulate adjacent amount roller spacing and be metal powder particle diameter higher limit 1.1 ~ 1.5 times, milling time is 15 ~ 45 minutes;
S2-3, standing dissolving are fully dissolved PVC paste resin; The standing time of slurry is 2.5 ~ 24 hours.
S2-4, dispersion, the slurry after utilizing the dispersion machine dispersed with stirring standing, jitter time is 1 ~ 20 minute, the speed setting of dispersion machine is 50 ~ 120 rev/mins.
Here, when S2-1 premix slurry, first PVC paste resin is deployed into the mixture of certain viscosity, then adds highdensity titanium dioxide and metal powder to carry out premix, can effectively avoid the sedimentation of highdensity titanium dioxide and metal powder.
When S2-2 uses the three-roll grinder ground slurry, pass through the gap between adjacent two rollers of three-roll grinder by slurry, the PVC paste resin microballoon, titanium dioxide microballoon or the metal powder microballoon that do not infiltrate that have large-size in slurry after the S2-1 premix are pulverized, thereby PVC paste resin, titanium dioxide or metal powder in microballoon are infiltrated fully.
When the standing dissolving of S2-3, time of repose is unsuitable too short or long, and too short PVC paste resin can not fully dissolve, longly lose time, and in unsubstantial improvement qualitatively.
When S2-4 disperseed, the time of dispersion was unsuitable long, otherwise a large amount of bubbles that disperse to produce have little time deaeration in film-forming process, and the appearance that can impair metal curtain integral body even diminishes its mechanical performance.
Again, described S3 film making process refers to will be through slurry blade coating that the S2 mixed processes obtains on the curtain base with knife coater, and under hygrometric state, the blade coating thickness of slurry is 10 ~ 30 microns.
Here, the curtain base can be by bottom at the bottom of one deck black curtain, one deck curtain base sandwich layer and one deck white curtain face top layer form at least, and a curtain base can be woven fabric or glass-fiber-fabric.And above the slurry that the S2 mixed processes obtains is the curtain face of blade coating at the curtain base.
At last, described S4 roasting procedure refers to adopt and comprises at least segmentation baking process four baking sections and that baking temperature increases progressively successively and toast scraping a curtain base that scribbles slurry, minimum baking section temperature is 110 ~ 120 ℃, the highest baking section temperature is 165 ~ 195 ℃, and scraping flow through time of each baking section of the curtain base that scribbles slurry is 0.5 ~ 5 minute.Segmentation baking had both guaranteed the abundant volatilization of the slurry small molecular of blade coating, and the polyvinyl chloride of avoiding again poor heat resistance is overstand and decomposing at high temperature; And the curtain face luminance gain of the metal curtain that obtains according to this baking process is high.Here, the time of the baking temperature in the segmentation baking process and each baking section of flowing through is to be vital in the present invention.
Preferred technical scheme can be: in above-mentioned S4 roasting procedure, the temperature of four baking sections is set as 120,130,145,160 ℃ successively.
Preferred technical scheme can be: in above-mentioned S4 roasting procedure, the temperature of four baking sections is set as 120,145,170,195 ℃ successively.
Advantage of the present invention and beneficial effect are: the present invention goes out to send to realize the high brightness gain of metal curtain from formula, two angles of technique.At first, in metal curtain metal powder pulp material formula used, used the chlorination fatty acid ester to improve metal powder wellability in polyvinyl chloride, used the anatase thpe white powder of high whiteness to increase the whiteness of metal curtain, and used can improve the metal curtain weatherability particularly the dioctyl adipate of heat-resisting and cold resistance as plasticizer, make metal curtain have stable and high whiteness and luminance gain.Secondly, at process aspect, when the premix slurry, first prepare polyvinyl chloride pulp, then add titanium dioxide and metal powder, avoided the sedimentation of titanium dioxide and metal powder; And then in subsequent process, the slurry after premix experiences the process that three-roll grinder grinding, standing dissolving and dispersion machine disperse successively, can realize that titanium dioxide and metal powder disperse in slurry uniformly; In roasting procedure, adopt the segmentation baking process to toast scraping a curtain base that scribbles slurry, both guaranteed the micromolecular abundant volatilization in the blade coating disposed slurry, the polyvinyl chloride of avoiding again poor heat resistance decomposes because of overstand at high temperature.The realization of metal curtain high brightness gain is to realize by the formula of adjusting the metal powder slurry, mixing procedure and baking process three aspects, can make its luminance gain of metal curtain of preparation reach 3.0 ~ 3.5 according to the inventive method; By contrast, such as adopting similar formula but without the chlorination fatty acid ester, and do not grind, only toast under constant temperature by three-roll grinder, the luminance gain of the metal curtain that obtains is only 1.5 ~ 2.5.The metal curtain that the high brightness that obtains according to the inventive method gains can be used as the 3D projection screen.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
The present invention is a kind of preparation method of high brightness gain metal curtain, and the method obtains through S1 batching, S2 mixing, S3 masking and S4 roasting procedure successively.
At first, S1 burden process wherein refers to each raw material by following weight portion proportioning:
100 parts of PVC paste resins,
3 ~ 10 parts of metal powders,
10 ~ 15 parts of anatase thpe white powders,
Dioctyl phthalate is or/and 70 ~ 85 parts, dioctyl adipate plasticizer,
3 ~ 8 parts of chlorination fatty acid ester surface conditioning agents,
6 ~ 10 parts of epoxidized soybean oil heat stabilizers.
Secondly, the S2 mixed processes refers to described raw material is mixed in the steps below:
S2-1, with all raw material premixs described in the S1 burden process, be specially, the mixed liquor of PVC paste resin with plasticizer and surface conditioning agent mixed, add subsequently heat stabilizer, add at last titanium dioxide and metal powder to mix;
S2-2, use the three-roll grinder ground slurry, regulate adjacent amount roller spacing and be metal powder particle diameter higher limit 1.1 ~ 1.5 times, milling time is 15 ~ 45 minutes;
S2-3, standing dissolving are fully dissolved PVC paste resin, and the standing time of slurry is 2.5 ~ 24 hours;
S2-4, dispersion, the slurry after utilizing the dispersion machine dispersed with stirring standing, jitter time is 1 ~ 20 minute, the speed setting of dispersion machine is 50 ~ 120 rev/mins.
Again, the S3 film making process refers to will be through slurry blade coating that the S2 mixed processes obtains on the curtain base with knife coater, and under hygrometric state, the blade coating thickness of slurry is 10 ~ 30 microns; Here, the curtain base can be by bottom at the bottom of one deck black curtain, one deck curtain base sandwich layer and one deck white curtain face top layer form at least, and a curtain base can be woven fabric or glass-fiber-fabric; And above the slurry that the S2 mixed processes obtains is the curtain face of blade coating at the curtain base.
At last, the S4 roasting procedure refers to adopt and comprises at least segmentation baking process four baking sections and that baking temperature increases progressively successively and toast scraping a curtain base that scribbles slurry; Wherein in the segmentation baking process, minimum baking section temperature is 110 ~ 120 ℃, and the highest baking section temperature is 165 ~ 195 ℃, and described to scrape flow through time of each baking section of the curtain base that scribbles slurry be 0.5 ~ 5 minute.
Preferably, the temperature of four baking sections is set as 120,130,145,160 ℃ successively, or is set as successively 120,145,170,195 ℃.
Luminance gain according to the metal curtain of the inventive method preparation can reach 3.0 ~ 3.5, and this metal curtain can be used as the 3D projection screen.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the preparation method of high brightness gain metal curtain, is characterized in that, the method successively through S1 batching, S2 mix, S3 masking and S4 roasting procedure obtain, wherein said S1 burden process refers to each raw material by following weight portion proportioning:
100 parts of PVC paste resins,
3 ~ 10 parts of metal powders,
10 ~ 15 parts of anatase thpe white powders,
Dioctyl phthalate is or/and 70 ~ 85 parts, dioctyl adipate plasticizer,
3 ~ 8 parts of chlorination fatty acid ester surface conditioning agents,
6 ~ 10 parts of epoxidized soybean oil heat stabilizers;
Described S2 mixed processes refers to described raw material is mixed in the steps below:
S2-1, with all raw material premixs described in the S1 burden process;
S2-2, use the three-roll grinder ground slurry,
S2-3, standing dissolving are fully dissolved PVC paste resin,
S2-4, dispersion, the slurry after utilizing the dispersion machine dispersed with stirring standing;
Described S3 film making process refers to will be through slurry blade coating that the S2 mixed processes obtains on the curtain base with knife coater;
Described S4 roasting procedure refers to adopt the segmentation baking process that baking temperature increases progressively successively to toast scraping the curtain base that scribbles slurry.
2. the preparation method of high brightness as claimed in claim 1 gain metal curtain, it is characterized in that, in described S2 mixed processes, during S2-1 premix slurry, the mixed liquor of PVC paste resin and plasticizer and surface conditioning agent is carried out premix, add subsequently heat stabilizer, add at last titanium dioxide and metal powder to carry out premix.
3. the preparation method of high brightness as claimed in claim 2 gain metal curtain, it is characterized in that, in described S2 mixed processes, when S2-2 uses the three-roll grinder ground slurry, regulate adjacent amount roller spacing and be metal powder particle diameter higher limit 1.1 ~ 1.5 times, milling time is 15 ~ 45 minutes.
4. the preparation method of high brightness gain metal curtain as claimed in claim 3, is characterized in that, in described S2 mixed processes, during the standing dissolving of S2-3, the standing time of slurry is 2.5 ~ 24 hours.
5. the preparation method of high brightness gain metal curtain as claimed in claim 4, is characterized in that, in described S2 mixed processes, when S2-4 disperses, the slurry after standing disperseed 1 ~ 20 minute with dispersion machine, and the speed setting of dispersion machine is 50 ~ 120 rev/mins.
6. the preparation method of high brightness gain metal curtain as claimed in claim 1, is characterized in that, in described S3 film making process, under hygrometric state, the blade coating thickness of slurry is 10 ~ 30 microns.
7. the preparation method of high brightness as claimed in claim 1 gain metal curtain, it is characterized in that, in described S4 roasting procedure, described segmentation baking process comprises four baking sections at least, minimum baking section temperature is 110 ~ 120 ℃, the highest baking section temperature is 165 ~ 195 ℃, and described to scrape flow through time of each baking section of the curtain base that scribbles slurry be 0.5 ~ 5 minute.
8. the preparation method of high brightness gain metal curtain as claimed in claim 7, is characterized in that, in described S4 roasting procedure, the temperature of described four baking sections is set as 120,130,145,160 ℃ successively.
9. the preparation method of high brightness gain metal curtain as claimed in claim 7, is characterized in that, in described S4 roasting procedure, the temperature of described four baking sections is set as 120,145,170,195 ℃ successively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210580712.6A CN103084322B (en) | 2012-12-28 | 2012-12-28 | High luminance gain metal curtain preparation method |
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| CN201210580712.6A CN103084322B (en) | 2012-12-28 | 2012-12-28 | High luminance gain metal curtain preparation method |
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| CN103084322A true CN103084322A (en) | 2013-05-08 |
| CN103084322B CN103084322B (en) | 2014-04-16 |
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| CN201210580712.6A Expired - Fee Related CN103084322B (en) | 2012-12-28 | 2012-12-28 | High luminance gain metal curtain preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647311A (en) * | 2016-01-14 | 2016-06-08 | 四川长虹电器股份有限公司 | Projection screen coating paint, preparation method and coating forming method |
| CN106280800A (en) * | 2016-08-22 | 2017-01-04 | 芜湖影星巨幕有限公司 | A kind of collapsible metal screen optical coating |
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| JPH09146173A (en) * | 1995-11-20 | 1997-06-06 | Kuraray Co Ltd | Polarization screen |
| CN1687843A (en) * | 2005-04-26 | 2005-10-26 | 上海华鼎科技教育设备有限公司 | Method for making composite reflecting screen |
| KR20080000667U (en) * | 2006-10-20 | 2008-04-24 | (주)티웍스 | Photo diffusion high gain screen |
| CN101364039A (en) * | 2007-08-10 | 2009-02-11 | 北京理工大学 | Rear-projection display screen with nanometer coatings |
| CN101935429B (en) * | 2010-09-25 | 2012-07-25 | 浙江港龙新材料有限公司 | Rear projection screen |
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2012
- 2012-12-28 CN CN201210580712.6A patent/CN103084322B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09146173A (en) * | 1995-11-20 | 1997-06-06 | Kuraray Co Ltd | Polarization screen |
| CN1687843A (en) * | 2005-04-26 | 2005-10-26 | 上海华鼎科技教育设备有限公司 | Method for making composite reflecting screen |
| KR20080000667U (en) * | 2006-10-20 | 2008-04-24 | (주)티웍스 | Photo diffusion high gain screen |
| CN101364039A (en) * | 2007-08-10 | 2009-02-11 | 北京理工大学 | Rear-projection display screen with nanometer coatings |
| CN101935429B (en) * | 2010-09-25 | 2012-07-25 | 浙江港龙新材料有限公司 | Rear projection screen |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647311A (en) * | 2016-01-14 | 2016-06-08 | 四川长虹电器股份有限公司 | Projection screen coating paint, preparation method and coating forming method |
| CN106280800A (en) * | 2016-08-22 | 2017-01-04 | 芜湖影星巨幕有限公司 | A kind of collapsible metal screen optical coating |
| CN106280800B (en) * | 2016-08-22 | 2018-07-10 | 芜湖影星巨幕有限公司 | A kind of foldable metal screen optical coating |
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