CN106199797A - The PET reflection film that a kind of processing characteristics is excellent - Google Patents
The PET reflection film that a kind of processing characteristics is excellent Download PDFInfo
- Publication number
- CN106199797A CN106199797A CN201610658428.4A CN201610658428A CN106199797A CN 106199797 A CN106199797 A CN 106199797A CN 201610658428 A CN201610658428 A CN 201610658428A CN 106199797 A CN106199797 A CN 106199797A
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- pet
- reflection film
- film
- inorganic particulate
- pet reflection
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0284—Diffusing elements; Afocal elements characterized by the use used in reflection
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention provides the PET reflection film that a kind of processing characteristics is excellent, comprising: p-phthalic acid 30～40wt%；Ethylene glycol 10～15wt%；M-phthalic acid 10～15wt%；1,6 hexanediol 2～4wt%；Polyethylene Glycol 3～8wt%；BaSO415～25wt%；ZnO 5～15wt%.The present invention is by adding M-phthalic acid and 1 in the component of PET reflection film, 6 hexanediol, processability during compliance and the masking of polymer can be effectively improved, improve the reflectance of thin film, and first inorganic particulate and Polyethylene Glycol are added in described ethylene glycol, after ultrasonic pretreatment 15～20min, add other components, inorganic particulate dispersibility in PET matrix can be improve, prevent, due to inorganic particulate skewness, film rupture phenomenon occurs in film-forming process, further increase the processing characteristics of PET reflection film.
Description
Technical field
The present invention relates to PET film.It is more particularly related to a kind of, processing characteristics is excellent, glossiness good, reflection
The PET reflection film that rate is high.
Background technology
Polyethylene terephthalate (PET) reflectance coating can be widely used in illuminating lamp, billboard, ion show
In device, film liquid crystal display etc., its Main Function is to be reflected back the light scattered in light guide plate to be allowed to enter back into light biography
Leading district, to increase the service efficiency of light, it is ensured that the light saturation needed for LCD, therefore reflectance coating needs have higher
Reflectance.
The preparation of PET reflection film is mainly fills inorganic particulate, when PET is stretched, due to matrix in PET base material
PET resin is inconsistent with inorganic particulate stretch behavior so that peel away between matrix resin and inorganic particulate, with inorganic grain
Son forms hole for core, owing to hole air is different from the refractive index of matrix PET so that incident illumination is at matrix PET and air
Interface there is refraction scattering, and owing to inorganic particulate itself is different from the refractive index of the air in PET matrix and space, also
Refraction scattering can be caused, thus obtain reflection, significantly improve the reflectance of PET film.But owing to PET is that crystal type is the highest poly-
Thing, strand marshalling, rigidity is strong, when the mass fraction of filling inorganic particulate is more than 35% the most easily in patternmaking process
Rupture of membranes phenomenon, additionally, due to inorganic particulate is easily reunited, the inhomogeneity of the dispersibility in PET occur, have impact on anti-further
Penetrate reflectance and the processability of film.
Summary of the invention
As various extensive and careful researchs and the result of experiment, it has been found by the inventor that by PET
The component of reflectance coating adds M-phthalic acid and 1,6-hexanediol, adding when can be effectively improved compliance and the masking of polymer
Work, improves the reflectance of thin film, and first adds in described ethylene glycol by inorganic particulate and Polyethylene Glycol, ultrasonic pretreatment 15
～after 20min, add other components, inorganic particulate dispersibility in PET matrix can be improved, prevent owing to inorganic particulate divides
Cloth is uneven and film rupture phenomenon in film-forming process, further increases the processing characteristics of PET reflection film.Based on this
Existing, complete the present invention.
It is an object of the invention to solve at least the above and/or defect, and at least will be described later excellent is provided
Point.
It is a still further object of the present invention to provide the PET reflection film that a kind of processing characteristics is excellent, it can be effectively improved poly-
The compliance of compound and the inorganic particulate filling homogeneity between organic resin, thus processability when improve masking and thin
The reflectance of film.
In order to realize according to object of the present invention and further advantage, it is provided that the PET that a kind of processing characteristics is excellent is anti-
Penetrate film, comprising:
PET is formed with ethylene glycol polycondensation by p-phthalic acid, and its repetitive is connected by ester group, the ester on main chain
Base and phenyl ring can form stable π-pi-conjugated structure, and strand rigidity is big.The addition of unsymmetric structure M-phthalic acid can be broken
Bad PET ordered structure originally, makes the arrangement of chain relax, improves the compliance of film.Additionally, 1,6-hexanediol by with second two
Alcohol is competing poly-, it is possible to change the original mechanism of PET, improves the compliance of polymer.
Preferably, wherein, first by described BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol, ultrasonic pre-place
After reason 15～20min, add other components, while inorganic particulate is distributed to ethylene glycol, adds Polyethylene Glycol, poly-second two
Alcohol can be adsorbed onto the surface of inorganic particulate, and after adding other components, Polyethylene Glycol also can be tied with the PET of polycondensation
Close, thus play the effect of the inorganic particulate aggregate that dissociates, improve inorganic particulate dispersibility in PET matrix.
Preferably, wherein, described BaSO4Being 200～500nm with the particle diameter of ZnO, the particle diameter of inorganic particulate is too small,
Can aggravate self agglomeration, and PET is after biaxial tension, inorganic particulate is too small relative to the ratio of the hole formed, polymerization
Thing reduces with the compound collaborative ability improving reflectivity of optical thin film of inorganic particulate, and the particle diameter of inorganic particulate is excessive, also can be necessarily
Affecting the reflectance of thin film in degree, especially when the particle diameter of inorganic particulate is more than film thickness, the reflection of thin film is actinic
Can substantially reduce.
Preferably, wherein, the number-average molecular weight of described Polyethylene Glycol is 1200～1600, within the specific limits, PEG's
Molecular weight is the least, and contribution flexible to polymer molecular weight is the biggest.
Preferably, wherein, the thickness of described PET reflection film is 50～70 μm, and the thickness of thin film is too high can increase light
It is lost and can reduce the application of thin film..
Preferably, wherein, the temperature of described PET reflection film stretching is 87 DEG C, and the temperature of stretching is too high, can cause thin film
Deliquescing becomes glutinous, and inorganic particulate is attached on organic polymer, affects the stripping between organic membrane and inorganic particulate, and temperature mistake
Height, easily there is shrinkage phenomenon in thin film, reduces glossiness and the reflectance of thin film.
Preferably, wherein, the stretching ratio of described PET reflection film is 4 times, if stretching ratio is too low, and matrix PET and nothing
Space between machine particle diminishes, and have impact on the reflectance of thin film, if stretching ratio is too high, easily occurs film in film-forming process
Rupture.
The present invention at least includes following beneficial effect:
(1) in reflectance coating formula of the present invention, the addition of unsymmetric structure M-phthalic acid can destroy PET regular knot originally
Structure, makes the arrangement of chain relax, the 1 of addition, and 6-hexanediol is by competing with ethylene glycol poly-, it is possible to change the original mechanism of PET, thus
Improve processability during compliance and the masking of polymer, prevent rupturing of film, increase between inorganic particulate and matrix PET resin
The space peeled off, improves the reflectance of thin film；
(2) present invention adds Polyethylene Glycol while inorganic particulate is distributed to ethylene glycol, and Polyethylene Glycol can be adsorbed onto nothing
The surface of machine particle, after adding other components, Polyethylene Glycol also can be combined with the PET of polycondensation, thus plays solution
From the effect of inorganic particulate aggregate, improve inorganic particulate dispersibility in PET matrix, it is therefore prevented that owing to inorganic particulate divides
Cloth is uneven and film rupture phenomenon in film-forming process；
(3) the reflectance coating reflectance that the present invention prepares is high, and glossiness is good, can realize LCDs thin to reflectance coating
The demand of degree, applied widely.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will be by this
Invention research and practice and be understood by the person skilled in the art.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, to make those skilled in the art with reference to saying
Bright book word can be implemented according to this.
Should be appreciated that used herein such as " have ", " comprising " and " including " term do not allot one or many
Other element individual or the existence of a combination thereof or interpolation.
<example 1>
The PET reflection film that a kind of processing characteristics is excellent, comprising: p-phthalic acid 30wt%, ethylene glycol 10wt%, isophthalic
Dioctyl phthalate 10wt%, 1,6-HD 2wt%, Polyethylene Glycol 8wt%, BaSO425wt%, ZnO 15wt%.
Wherein, first by described BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol, after ultrasonic pretreatment 15min,
Add other components of residue.
Wherein, described BaSO4It is 200nm with the particle diameter of ZnO；The number-average molecular weight of described Polyethylene Glycol is 1200；Institute
The thickness stating PET reflection film is 50 μm；The temperature of described PET reflection film stretching is 87 DEG C, the stretching ratio of described PET reflection film
It it is 4 times.The properties using the PET reflection film that this example prepares is shown in Table 1.
<example 2>
The PET reflection film that a kind of processing characteristics is excellent, comprising: p-phthalic acid 40wt%, ethylene glycol 15wt%, isophthalic
Dioctyl phthalate 15wt%, 1,6-HD 4wt%, Polyethylene Glycol 6wt%, BaSO415wt%, ZnO 5wt%.
Wherein, first by described BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol, after ultrasonic pretreatment 20min,
Add other components of residue.
Wherein, described BaSO4It is 500nm with the particle diameter of ZnO；The number-average molecular weight of described Polyethylene Glycol is 1600；Institute
The thickness stating PET reflection film is 70 μm；The temperature of described PET reflection film stretching is 87 DEG C, the stretching ratio of described PET reflection film
It it is 4 times.The properties using the PET reflection film that this example prepares is shown in Table 1.
<example 3>
The PET reflection film that a kind of processing characteristics is excellent, comprising: p-phthalic acid 36wt%, ethylene glycol 13wt%, isophthalic
Dioctyl phthalate 12wt%, 1,6-HD 3wt%, Polyethylene Glycol 3wt%, BaSO423wt%, ZnO 10wt%.
Wherein, first by described BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol, after ultrasonic pretreatment 17min,
Add other components of residue.
Wherein, described BaSO4It is 300nm with the particle diameter of ZnO；The number-average molecular weight of described Polyethylene Glycol is 1400；Institute
The thickness stating PET reflection film is 60 μm；The temperature of described PET reflection film stretching is 87 DEG C, the stretching ratio of described PET reflection film
It it is 4 times.The properties using the PET reflection film that this example prepares is shown in Table 1.
<example 4>
The PET reflection film that a kind of processing characteristics is excellent, comprising: p-phthalic acid 31wt%, ethylene glycol 11wt%, isophthalic
Dioctyl phthalate 12wt%, 1,6-HD 3wt%, Polyethylene Glycol 7wt%, BaSO423wt%, ZnO 13wt%.
Wherein, first by described BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol, after ultrasonic pretreatment 16min,
Add other components of residue.
Wherein, described BaSO4It is 250nm with the particle diameter of ZnO；The number-average molecular weight of described Polyethylene Glycol is 1300；Institute
The thickness stating PET reflection film is 55 μm；The temperature of described PET reflection film stretching is 87 DEG C, the stretching ratio of described PET reflection film
It it is 4 times.The properties using the PET reflection film that this example prepares is shown in Table 1.
<example 5>
The PET reflection film that a kind of processing characteristics is excellent, comprising: p-phthalic acid 38wt%, ethylene glycol 13wt%, isophthalic
Dioctyl phthalate 14wt%, 1,6-HD 4wt%, Polyethylene Glycol 5wt%, BaSO418wt%, ZnO 8wt%.
Wherein, first by described BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol, after ultrasonic pretreatment 16min,
Add other components of residue.
Wherein, described BaSO4It is 450nm with the particle diameter of ZnO；The number-average molecular weight of described Polyethylene Glycol is 1500；Institute
The thickness stating PET reflection film is 65 μm；The temperature of described PET reflection film stretching is 87 DEG C, the stretching ratio of described PET reflection film
It it is 4 times.The properties using the PET reflection film that this example prepares is shown in Table 1.
In order to the effect of the present invention is described, inventor provides comparative experiments as follows:
<comparative example 1>
When choosing the component of PET reflection film, without M-phthalic acid and 1,6-hexanediol, the component of PET reflection film
Including p-phthalic acid 55wt%, ethylene glycol 19wt%, Polyethylene Glycol 6wt%, BaSO415wt%, ZnO 5wt%, remaining ginseng
Number is identical with example 2, and technical process is the most identical.Use each of the PET reflection film that this comparative example prepares
Item performance is shown in Table 1.
<comparative example 2>
During preparing PET reflection film, do not carry out BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol,
The step of ultrasonic pretreatment, is directly added into all reactants and carries out polycondensation reaction, and remaining parameter is identical with example 3,
Technical process is the most identical.The properties using the PET reflection film that this comparative example prepares is shown in Table 1.
<comparative example 3>
During preparing PET reflection film, the temperature of stretching is 107 DEG C, remaining parameter and example, the complete phase in 4
With, technical process is the most identical.The properties using the PET reflection film that this comparative example prepares is shown in Table 1.
The PET reflection film preparing the various embodiments described above and comparative example measures every ginseng the most by the following method
Number: by installing integrating sphere on ultraviolet spectrophotometer, measure wave-length coverage reflectivity of optical thin film at 550 nm；According to JIS
Z-8741:1997 measures thin film glossiness under angle of incidence and acceptance angle are 60 °；Thin film is measured according to GB1033-1986
Porosity；The tensile property of thin film is measured according to GB/T 1040-1992.
The various performance parameters of table 1PET reflectance coating
From upper table 1 it can be seen that comparative example 1 is compared with example, comparative example does not add in the formula of PET reflection film benzene
Dioctyl phthalate and 1,6-hexanediol, the elongation at break of the thin film obtained substantially reduces, shape between inorganic particulate and organic polymer
The hole become reduces, and prepares the reflectance reduction of thin film.
Comparative example 2 is compared with example, due to first by BaSO4, ZnO and Polyethylene Glycol add in described ethylene glycol also
Carrying out the step of ultrasonic pretreatment, inorganic particulate filling homogeneity in PET matrix is deteriorated, and reduces thin to a certain extent
The elongation at break of film, have impact on the reflectance of thin film.
Comparative example 3 is compared with example, too high due to draft temperature in film-forming process, and film starts to occur tacky and wrinkling existing
As, the glossiness of film is affected, and owing to the stripping between organic membrane and inorganic particulate is also under some influence, prepares
The reflectance reduction of thin film.
Visible, in reflectance coating formula of the present invention, the addition of unsymmetric structure M-phthalic acid can destroy the regular of PET script
Structure, makes the arrangement of chain relax, the 1 of addition, and 6-hexanediol is by competing with ethylene glycol poly-, it is possible to change the original mechanism of PET, from
And processability when improve compliance and the masking of polymer, prevent rupturing of film, increase inorganic particulate and matrix PET resin
Between peel off space, improve thin film reflectance；
Additionally, the present invention adds Polyethylene Glycol while inorganic particulate is distributed to ethylene glycol, Polyethylene Glycol can be adsorbed onto
The surface of inorganic particulate, after adding other components, Polyethylene Glycol also can be combined with the PET of polycondensation, thus plays
Dissociate the effect of inorganic particulate aggregate, improve inorganic particulate dispersibility in PET matrix, it is therefore prevented that due to inorganic particulate
Skewness and film rupture phenomenon in film-forming process；
Additionally, the reflectance coating reflectance that the present invention prepares is high, glossiness is good, can realize LCDs to reflectance coating
The demand of thinness, applied widely.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed
Use.It can be applied to various applicable the field of the invention completely.For those skilled in the art, can be easily
Realize other amendment.Therefore, under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details with shown here as the embodiment with description.
Claims (7)
1. the PET reflection film that a processing characteristics is excellent, it is characterised in that including:
2. the PET reflection film that processing characteristics as claimed in claim 1 is excellent, it is characterised in that first by described BaSO4、ZnO
And Polyethylene Glycol adds in described ethylene glycol, after ultrasonic pretreatment 15～20min, add other components.
3. the PET reflection film that processing characteristics as claimed in claim 1 is excellent, it is characterised in that described BaSO4Particle diameter with ZnO
It is 200～500nm.
4. the PET reflection film that processing characteristics as claimed in claim 1 is excellent, it is characterised in that the number of described Polyethylene Glycol is equal
Molecular weight is 1200～1600.
5. the PET reflection film that processing characteristics as claimed in claim 1 is excellent, it is characterised in that the thickness of described PET reflection film
It is 50～70 μm.
6. the PET reflection film that processing characteristics as claimed in claim 1 is excellent, it is characterised in that the stretching of described PET reflection film
Temperature is 87 DEG C.
7. the PET reflection film that processing characteristics as claimed in claim 1 is excellent, it is characterised in that the stretching of described PET reflection film
Multiplying power is 4 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658428.4A CN106199797A (en) | 2016-08-12 | 2016-08-12 | The PET reflection film that a kind of processing characteristics is excellent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658428.4A CN106199797A (en) | 2016-08-12 | 2016-08-12 | The PET reflection film that a kind of processing characteristics is excellent |
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| CN106199797A true CN106199797A (en) | 2016-12-07 |
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| CN201610658428.4A Pending CN106199797A (en) | 2016-08-12 | 2016-08-12 | The PET reflection film that a kind of processing characteristics is excellent |
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| CN102626703A (en) * | 2012-03-22 | 2012-08-08 | 宁波市柯玛士太阳能科技有限公司 | Intelligent automatic solar panel cleaning system |
| CN102627835A (en) * | 2012-03-30 | 2012-08-08 | 富维薄膜（山东）有限公司 | Addition type composite particle for polyester film, preparation method of addition type composite particle and optical polyester film added with composite particle |
| CN103018804A (en) * | 2012-12-28 | 2013-04-03 | 合肥乐凯科技产业有限公司 | Reflecting film |
| CN103552329A (en) * | 2013-10-10 | 2014-02-05 | 宁波东旭成新材料科技有限公司 | High-performance reflective film and its preparation method |
| CN104169749A (en) * | 2012-02-13 | 2014-11-26 | 东丽株式会社 | Reflective film |
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2016
- 2016-08-12 CN CN201610658428.4A patent/CN106199797A/en active Pending
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|---|---|---|---|---|
| KR20020085043A (en) * | 2001-05-04 | 2002-11-16 | 주식회사 지.비라이트 | Method for manufacturing self colored reflective material for transcription |
| CN101851402A (en) * | 2010-05-28 | 2010-10-06 | 中国乐凯胶片集团公司 | High-transparency thick polyester film |
| CN104169749A (en) * | 2012-02-13 | 2014-11-26 | 东丽株式会社 | Reflective film |
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