CN109912940A - A kind of transparent BOPET film and preparation method thereof of the low warpage of scratch resistance - Google Patents
A kind of transparent BOPET film and preparation method thereof of the low warpage of scratch resistance Download PDFInfo
- Publication number
- CN109912940A CN109912940A CN201910202041.1A CN201910202041A CN109912940A CN 109912940 A CN109912940 A CN 109912940A CN 201910202041 A CN201910202041 A CN 201910202041A CN 109912940 A CN109912940 A CN 109912940A
- Authority
- CN
- China
- Prior art keywords
- graphite alkene
- white graphite
- scratch resistance
- pet
- low warpage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of transparent BOPET film of the low warpage of scratch resistance, the component comprising following weight percentage: PET slice 80~99.5% and the compound PET slice 0.5~20% of white graphite alkene；The compound PET slice of white graphite alkene contains the following parts by weight: modified 0.01~15 part of white graphite alkene, PET are sliced 65~99.89 parts and 0.1~20 part of compatilizer.BOPET film of the present invention selects, plays white graphite alkene materials chemistry graft modification technology; with high rigidity, it is scratch resistant simultaneously; also it effectively prevent buckling deformation and inhibition oligomer precipitation when high temperature; protect optical property unaffected; reduce abnormal appearance when back segment operation; producing line yield is improved, while PET base material being made not need to carry out cure process before plated film or coating or only need single side cure process, save the cost.
Description
Technical field
The present invention relates to a kind of PET materials, and in particular to the transparent BOPET film and its preparation of a kind of low warpage of scratch resistance
Method.
Background technique
BOPET polyester film refers to that the polyethylene terephthalate polymer in polyester family is made through biaxial tension
Film.For opposite glass, high-flexibility, high transparency, low haze BOPET optical film be already plated film, coating producer
Dedicated leading base material.Domestic manufacturer uses mainly from Japan and Korea S.'s import at present, causes substrate cost high, and
The generally existing more problem of domestic manufacturer's production and sales PET base material: warpage shadow is easy when on the one hand due to PET optical film high temperature resistant
Ring back-end process, on the other hand, plated film, coating when PET base material hardness it is low, generally hover between 2-3H, it is easy to lead
It causes PET film two sides to cause to scratch bad, makes a big impact to back segment process, yield is all greatly reduced, cost increase；Hardness is low
Not wear-resisting defect is also not suitable for the flexible cover plate being increasingly prevailing or uses as screen rupture pressure disc.
Photoelectricity membrane material industry related personnel is the problems such as not wear-resisting, easy to scratch for improving PET base material, need to in PET base material,
Lower two sides coats one layer of inorganic nano coating all to carry out two-sided cure process, influences PET film transmitance again in this way；And it applies
It is not very good with substrate adhesive force after upper wear-resistant coating, then plated film or is coated with upper conductive coating as the production of back segment touch screen
When, it will cause entire conductive layer and fall off, be cracked, cause touch display device function NG, influence yield.
And directly adopt New Two Dimensional nano material to PET slice raw material itself carry out it is composite modified after through two-way drawing
It stretches and transparent PET substrate is made to replace or reduce the research of back segment double spread hardening and be rarely reported.
Summary of the invention
It is an object of the invention to optical grade PET base materials used in current photovoltaic industry in works such as plated film, coating, cuttings
The abnormal appearances such as easy warpage when easily occurring scratching, scratching, toast in sequence and the transparent BOPET for providing a kind of low warpage of scratch resistance is thin
Film and preparation method thereof.
To achieve the above object, the technical scheme adopted by the invention is as follows: a kind of transparent BOPET of the low warpage of scratch resistance is thin
Film, the component comprising following weight percentage: PET slice 80~99.5% and white graphite alkene compound PET slice 0.5~
20%；
The compound PET slice of white graphite alkene contains the following parts by weight: modified 0.01~15 part of white graphite alkene,
PET is sliced 65~99.89 parts and 0.1~20 part of compatilizer.
The compound PET slice of white graphite alkene of the present invention is creatively single layer or few stratiform two dimension material using white graphite alkene
Material while making BOPET film obtained with very high mechanical strength, heat-resisting quantity, high rigidity, high-wearing feature and has soft
Toughness, white or the characteristics such as transparent.When the additive amount of the modified white graphite alkene is greater than 15 parts, it is easy to happen reunion, and at
This is higher.Before PET slice use through 100~180 DEG C dry 6~handle for 24 hours.
Preferably, the modified white graphite alkene preparation method the following steps are included:
(1), white graphite alkene is activated under strong acid, obtains white graphite alkene A；
(2), white graphite alkene A is placed in ethanol water, γ-mercaptopropyl trimethoxysilane is added, is stirred to react, takes
Out, it washs, obtains white graphite alkene B；
(3), white graphite alkene B is added in the DMF solvent containing vinyl monomer, photoinitiator is added, ultraviolet light takes
Out, it washs, it is dry, obtain the modified white graphite alkene.
In step (1), the purpose of strong acid treatment is that the surface of white graphite alkene is made to generate hydroxyl, carboxyl isoreactivity group；It is living
Change the condition of processing are as follows: by white graphite alkene through strong acid the reflow treatment 0.5~for 24 hours at 60~300 DEG C.
In step (2), it is surface modified using γ-mercaptopropyl trimethoxysilane dialogue graphene, the purpose of washing
It is to remove white graphite alkene γ-mercaptopropyl trimethoxysilane remained on surface；The time being stirred to react is 0.5~12h.
In step (3), the time of ultraviolet light is 0.1~10h；The purpose of washing is to wash away white graphite alkene remained on surface
Vinyl monomer, drying temperature be 30~150 DEG C.
It is vinyl superpolymer is mild, fast that the modified white graphite alkene passes through the novel sulfydryl of application-alkene click addition reaction
Fast, controllable effective chemical graft really realizes on white graphite alkene surface and forms good compatibility with PET matrix, make its
It parallel to each other can be also interspersed in while reaching good evenly dispersed in PET matrix in PET matrix and form fine and close reticular structure, this
It the buckling deformations such as greatly enhances the wear-resisting, scratch resistant of PET material and can effectively prevent sticking up above and below, back segment operation is also greatly improved
Yield.
Preferably, the weight of the white graphite alkene, γ-mercaptopropyl trimethoxysilane, vinyl monomer and photoinitiator
Part are as follows: 1 part of white graphite alkene, 0.5~15 part of γ-mercaptopropyl trimethoxysilane, 10~50 parts of vinyl monomer and photoinitiator
0.5~10 part.The preparation of modified white graphite alkene is able to achieve using said ratio.
It is highly preferred that the white graphite alkene, γ-mercaptopropyl trimethoxysilane, vinyl monomer and photoinitiator weight
Measure part are as follows: 1 part of white graphite alkene, 1~10 part of γ-mercaptopropyl trimethoxysilane, 20~40 parts of vinyl monomer and photoinitiator
0.5~5 part.It is matched using above-mentioned raw materials, the performance of modified white graphite alkene obtained is more preferably.
Preferably, the additive amount of the modified white graphite alkene is 0.5~10 parts by weight；The modified white graphite alkene be 1~
10 layers of modified white graphite alkene.
When the modified white graphite alkene uses above-mentioned additive amount, its effect can be given full play in PET slice, and is easy to divide
It dissipates, the generation of soilless sticking phenomenon can control while lower production cost, guarantee the performance of PET slice.
Preferably, the PET slice is 80~99.6 parts by weight, and the compatilizer is 0.1~10 parts by weight.Using above-mentioned
When proportion, being sliced material obtained using the PET has higher mechanical strength, heat-resisting quantity, hardness and wearability.
Preferably, the vinyl monomer is methyl acrylate, acrylamide, ethyl acrylate, hydroxy-ethyl acrylate, first
At least one of base methyl acrylate, glycidyl methacrylate, styrene, acrylonitrile and vinyl acetate.
Preferably, at least one in following (a)~(c):
(a), the strong acid type is nitric acid and/or sulfuric acid；
(b), the photoinitiator type is at least one of 250,369,184,907,500 and 1173 photoinitiators；
(c) solvent used that washs is at least one of toluene, dimethylbenzene, acetone, butanone and tetrahydrofuran.
Preferably, the inherent viscosity of the PET slice is 0.6~1dL/g.The size of inherent viscosity influence processing performance and
Mechanical strength can guarantee good processing performance and mechanical strength using the PET slice of above-mentioned inherent viscosity.
Preferably, the compatilizer is PP grafted maleic anhydride.
Preferably, the preparation method of the compound PET slice of the white graphite alkene comprises the steps of:
(A), high-speed mixer heating temperature is opened to 60~120 DEG C, weighs PET slice, modified white graphite alkene and compatible
Agent is pre-mixed 5~60min of dispersion through high speed disperser；
(B), double screw extruder is opened, each area's temperature is 230~290 DEG C, and step (A) is pre-mixed scattered material
It is added in twin-screw extruder barrel, obtains the compound PET of white graphite alkene through mixing, extrusion, water cooling, tie rod pelletizing and be sliced.
In step (B), engine speed is 120~560r/min.
The object of the invention is also to provide a kind of preparation method of the transparent BOPET film of the low warpage of scratch resistance,
It comprises the steps of: and the compound PET slice of white graphite alkene and PET slice is added in plastic film extruder barrel, squeezed out,
Air-cooled, vertical, horizontal biaxial tension, thermal finalization, winding obtain the transparent BOPET film of the low warpage of the scratch resistance；The plastics are thin
Each area's temperature range of film extruder is 240~300 DEG C；Longitudinal stretching ratio is 210~480%, and longitudinal stretching heat setting temperature is
65~150 DEG C；Cross directional stretch ratio is 280~560%, and cross directional stretch heat setting temperature is 80~210 DEG C.
Film is further made by melting extrusion technique dialogue graphene modified PET slice, it is especially double using vertical, horizontal
To drawing process, uniform sequential the aligning of sheet white graphite alkene may be implemented and spread in PET matrix, may also suppress
Small molecule that PET film material is generated through high temperature ageing, oligomer precipitation phenomenon, effective protection optical property are unaffected.
The beneficial effects of the present invention are: the present invention provides a kind of transparent BOPET film of the low warpage of scratch resistance and its
Preparation method, BOPET film creativeness of the present invention select, play a series of excellent spies that white graphite alkene material itself has
Property and grafting modification technology, have high rigidity, it is scratch resistant simultaneously, also effectively prevent buckling deformation and inhibition when high temperature
Oligomer precipitation protects optical property unaffected, reduces abnormal appearance when back segment operation, improves producing line yield, together
When make PET base material not need to carry out cure process before plated film or coating or only need single side cure process, save the cost,
It is used especially suitable for photovoltaic industry as plated film or coating PET base material and increasingly popular flexible touch-control is shown, market prospects
It is boundless.
Specific embodiment
To better illustrate the object, technical solutions and advantages of the present invention, below in conjunction with specific embodiment to the present invention
It is described further.
Embodiment 1
A kind of embodiment of the transparent BOPET film of the low warpage of scratch resistance of the present invention, scratch resistance described in the present embodiment
The transparent BOPET film of low warpage includes that the compound PET slice of white graphite alkene of 1 parts by weight and the PET of 99 parts by weight are sliced.It is described
The formula of the compound PET slice of white graphite alkene is shown in Table 1.
In the present embodiment, the modified white graphite alkene the preparation method comprises the following steps: by 3 layers of 1 parts by weight of white graphite alkene first through nitre
Acid handles 5h in 120 DEG C of high temperature refluxes, its surface is made to generate hydroxyl, carboxyl isoreactivity group；It is subsequently placed in ethanol water,
It is added the γ-mercaptopropyl trimethoxysilane (KH590) of 6 parts by weight, room temperature mechanical stirring 4.5h, then repeatedly washed with acetone white
The unreacted KH590 of graphene surface；Finally the white graphite alkene of surface chemical modification KH590 is placed in advance dissolved with 30 weight
In the DMF solvent of part vinyl acetate, 1.5 parts by weight photoinitiators 184 are added, ultraviolet light 2h takes out after reaction
The white graphite alkene of chemical graft, while the unreacted vinyl acetate in white graphite alkene surface is repeatedly washed with acetone, through vacuum drying oven
90 DEG C of dryings are to get the modified white graphite alkene.
The compound PET slice of the white graphite alkene the preparation method comprises the following steps:
(1), high-speed mixer heating temperature is stablized after 65 DEG C, weighing inherent viscosity in parts by weight is 0.83dL/g
PET slice, modified white graphite alkene and PP grafted maleic anhydride (PP-g-MAH), be pre-mixed dispersion 15min through high-speed mixer
Discharging；
(2), by each area's stable temperature control of double screw extruder at 245~290 DEG C, premixing that step (1) is obtained
Scattered mixture is added in twin-screw extruder barrel, engine speed 285r/min, through mixing, extrusion, water cooling, drawing
Pelletizing obtains the compound PET slice of white graphite alkene.
The preparation method of the transparent BOPET film of the low warpage of the scratch resistance comprising the steps of: open plastic film and squeeze
The area Chu Jige temperature is stablized after 250~290 DEG C, weighs the compound PET slice of white graphite alkene and PET slice is added to plastic film
It in extruder barrel, is squeezed out, is air-cooled, longitudinal stretching ratio is 250%, and longitudinal stretching heat setting temperature is 80 DEG C, cross directional stretch
Than being 320%, cross directional stretch heat setting temperature is 120 DEG C, then rolling, and the transparent BOPET for obtaining the low warpage of the scratch resistance is thin
Film.
Embodiment 2
A kind of embodiment of the transparent BOPET film of the low warpage of scratch resistance of the present invention, scratch resistance described in the present embodiment
The transparent BOPET film of low warpage includes that the compound PET slice of white graphite alkene of 3 parts by weight and the PET of 97 parts by weight are sliced.It is described
The formula of the compound PET slice of white graphite alkene is shown in Table 1.
In the present embodiment, the modified white graphite alkene the preparation method comprises the following steps: by 3 layers of 1 parts by weight of white graphite alkene first through nitre
Acid handles 6h in 100 DEG C of high temperature refluxes, its surface is made to generate hydroxyl, carboxyl isoreactivity group；It is subsequently placed in ethanol water,
It is added the γ-mercaptopropyl trimethoxysilane (KH590) of 10 parts by weight, room temperature mechanical stirring 6h, then repeatedly washed with acetone white
The unreacted KH590 of graphene surface；Finally the white graphite alkene of surface chemical modification KH590 is placed in advance dissolved with 40 weight
In the DMF solvent of part methacrylate monomer, 5 parts by weight photoinitiators 184 are added, ultraviolet light 3h takes after reaction
The white graphite alkene of chemical graft out, while the unreacted methyl acrylate list in white graphite alkene surface is repeatedly washed with tetrahydrofuran
Body, through 85 DEG C of dryings of vacuum drying oven to get the modified white graphite alkene.
The compound PET slice of the white graphite alkene the preparation method comprises the following steps:
(1), high-speed mixer heating temperature is stablized after 65 DEG C, weighing inherent viscosity in parts by weight is 0.83dL/g
PET slice, modified white graphite alkene and PP-g-MAH, be pre-mixed dispersion 15min discharging through high-speed mixer；
(2), by each area's stable temperature control of double screw extruder at 250~290 DEG C, premixing that step (1) is obtained
Scattered mixture is added in twin-screw extruder barrel, engine speed 360r/min, through mixing, extrusion, water cooling, drawing
Pelletizing obtains the compound PET slice of white graphite alkene.
The preparation method of the transparent BOPET film of the low warpage of the scratch resistance comprising the steps of: open plastic film and squeeze
The area Chu Jige temperature is stablized after 260~290 DEG C, weighs the compound PET slice of white graphite alkene and PET slice is added to plastic film
It in extruder barrel, is squeezed out, is air-cooled, longitudinal stretching ratio is 320%, and longitudinal stretching heat setting temperature is 100 DEG C, cross directional stretch
Than being 400%, cross directional stretch heat setting temperature is 150 DEG C, then rolling, and the transparent BOPET for obtaining the low warpage of the scratch resistance is thin
Film.
Embodiment 3
A kind of embodiment of the transparent BOPET film of the low warpage of scratch resistance of the present invention, scratch resistance described in the present embodiment
The transparent BOPET film of low warpage includes that the compound PET slice of white graphite alkene of 5 parts by weight and the PET of 95 parts by weight are sliced.It is described
The formula of the compound PET slice of white graphite alkene is shown in Table 1.
In the present embodiment, the modified white graphite alkene the preparation method comprises the following steps: by 2 layers of 1 parts by weight of white graphite alkene first through sulphur
The mixed acid of acid and nitric acid handles 5h in 120 DEG C of high temperature refluxes, its surface is made to generate hydroxyl, carboxyl isoreactivity group；Then it sets
In ethanol water, the γ-mercaptopropyl trimethoxysilane (KH590) of 1 parts by weight, room temperature mechanical stirring 8h is added, then use
Tetrahydrofuran repeatedly washs the unreacted KH590 in white graphite alkene surface；Finally by the white graphite alkene of surface chemical modification KH590
It is placed in advance dissolved in the DMF solvent of 20 weight parts of methacrylic acid ethylene oxidic esters, 3 parts by weight photoinitiators 1173 is added,
Ultraviolet light 3.5h, takes out the white graphite alkene of chemical graft after reaction, while white stone is repeatedly washed with tetrahydrofuran
The black unreacted glycidyl methacrylate in alkene surface, through 90 DEG C of dryings of vacuum drying oven to get the modified white graphite alkene.
The compound PET slice of the white graphite alkene the preparation method comprises the following steps:
(1), high-speed mixer heating temperature is stablized after 65 DEG C, weighing inherent viscosity in parts by weight is 0.83dL/g
PET slice, modified white graphite alkene and PP-g-MAH, be pre-mixed dispersion 15min discharging through high-speed mixer；
(2), by each area's stable temperature control of double screw extruder at 250~290 DEG C, premixing that step (1) is obtained
Scattered mixture is added in twin-screw extruder barrel, engine speed 450r/min, through mixing, extrusion, water cooling, drawing
Pelletizing obtains the compound PET slice of white graphite alkene.
The preparation method of the transparent BOPET film of the low warpage of the scratch resistance comprising the steps of: open plastic film and squeeze
The area Chu Jige temperature is stablized after 260~300 DEG C, weighs the compound PET slice of white graphite alkene and PET slice is added to plastic film
It in extruder barrel, is squeezed out, is air-cooled, longitudinal stretching ratio is 420%, and longitudinal stretching heat setting temperature is 120 DEG C, cross directional stretch
Than being 480%, cross directional stretch heat setting temperature is 180 DEG C, then rolling, and the transparent BOPET for obtaining the low warpage of the scratch resistance is thin
Film.
Embodiment 4
The transparent BOPET film of the low warpage of scratch resistance described in the present embodiment includes the compound PET of white graphite alkene of 0.5 parts by weight
Slice and the PET of 99.5 parts by weight are sliced.The formula of the compound PET slice of white graphite alkene is shown in Table 1.
The preparation method of the compound PET slice of white graphite alkene is same as Example 1.
The preparation method of the transparent BOPET film of the low warpage of the scratch resistance is same as Example 1.
Embodiment 5
The transparent BOPET film of the low warpage of scratch resistance described in the present embodiment includes the compound PET of white graphite alkene of 20 parts by weight
Slice and the PET of 80 parts by weight are sliced.The formula of the compound PET slice of white graphite alkene is shown in Table 1.
The preparation method of the modified white graphite alkene and the compound PET slice of white graphite alkene is same as Example 1.
The preparation method of the transparent BOPET film of the low warpage of the scratch resistance is same as Example 1.
Embodiment 6
A kind of embodiment of the transparent BOPET film of the low warpage of scratch resistance of the present invention, scratch resistance described in the present embodiment
The transparent BOPET film of low warpage includes that the compound PET slice of white graphite alkene of 1 parts by weight and the PET of 99 parts by weight are sliced.It is described
The formula of the compound PET slice of white graphite alkene is shown in Table 1.
In the present embodiment, the modified white graphite alkene the preparation method comprises the following steps: by the white graphite alkene of 1 parts by weight single layer first through nitre
Acid handles 0.5h in 300 DEG C of high temperature refluxes, its surface is made to generate hydroxyl, carboxyl isoreactivity group；It is subsequently placed in ethanol water
In, the γ-mercaptopropyl trimethoxysilane (KH590) of 15 parts by weight, room temperature mechanical stirring 0.5h is added, then repeatedly washed with acetone
Wash the unreacted KH590 in white graphite alkene surface；Finally the white graphite alkene of surface chemical modification KH590 is placed in advance dissolved with 50
In the DMF solvent of parts by weight of acrylic acid hydroxyl ethyl ester, 10 parts by weight photoinitiators 1173, ultraviolet light 10h are added, reaction terminates
The white graphite alkene of chemical graft is taken out afterwards, while the unreacted acrylic acid hydroxyl second in white graphite alkene surface is repeatedly washed with toluene
Ester, through 100 DEG C of dryings of vacuum drying oven to get the modified white graphite alkene.
The preparation method of the modified white graphite alkene and the compound PET slice of white graphite alkene is same as Example 1.
The preparation method of the transparent BOPET film of the low warpage of the scratch resistance is same as Example 1.
Embodiment 7
A kind of embodiment of the transparent BOPET film of the low warpage of scratch resistance of the present invention, scratch resistance described in the present embodiment
The transparent BOPET film of low warpage includes that the compound PET slice of white graphite alkene of 1 parts by weight and the PET of 99 parts by weight are sliced.It is described
The formula of the compound PET slice of white graphite alkene is shown in Table 1.
In the present embodiment, the modified white graphite alkene the preparation method comprises the following steps: by 10 layers of 1 parts by weight of white graphite alkene first through nitre
Acid is handled for 24 hours in 60 DEG C of high temperature refluxes, its surface is made to generate hydroxyl, carboxyl isoreactivity group；It is subsequently placed in ethanol water,
The γ-mercaptopropyl trimethoxysilane (KH590) of 0.5 parts by weight, room temperature mechanical stirring 12h is added, then is repeatedly washed with acetone
The unreacted KH590 in white graphite alkene surface；Finally the white graphite alkene of surface chemical modification KH590 is placed in advance dissolved with 10 weights
In the DMF solvent for measuring part hydroxy-ethyl acrylate, 0.5 parts by weight photoinitiator 1173, ultraviolet light 0.1h is added, reaction terminates
The white graphite alkene of chemical graft is taken out afterwards, while the unreacted acrylic acid hydroxyl second in white graphite alkene surface is repeatedly washed with toluene
Ester, through 100 DEG C of dryings of vacuum drying oven to get the modified white graphite alkene.
The preparation method of the compound PET slice of white graphite alkene is same as Example 1.
The preparation method of the transparent BOPET film of the low warpage of the scratch resistance is same as Example 1.
Embodiment 8~9
The transparent BOPET film of the low warpage of the scratch resistance of embodiment 8~9 includes the compound PET of white graphite alkene of 1 parts by weight
Slice and the PET of 99 parts by weight are sliced.The formula of the compound PET slice of white graphite alkene is shown in Table 1.
The preparation method is the same as that of Example 1 for the modified white graphite alkene of embodiment 8~9 and the compound PET slice of white graphite alkene.
The preparation method of the transparent BOPET film of the low warpage of 8~9 scratch resistance of embodiment is same as Example 1.
Comparative example 1
White graphite alkene PET described in this comparative example slice preparation method the following steps are included:
(1), high-speed mixer heating temperature is stablized after 65 DEG C, weighs 85 parts of inherent viscosities in parts by weight
PET slice, the 10 parts of unmodified white graphite alkene, 5 parts of PP-g-MAH of 0.81dL/g are pre-mixed dispersion 15min through high-speed mixer
Discharging；
(2), by each area's stable temperature control of double screw extruder at 245~290 DEG C, premixing that step (1) is obtained
Scattered mixture is added in twin-screw extruder barrel, engine speed 285r/min, through mixing, extrusion, water cooling, drawing
Pelletizing obtains the compound PET slice of white graphite alkene.
The compound PET slice of the white graphite alkene comprising 1 parts by weight of the BOPET film and the PET of 99 parts by weight are sliced, system
Preparation Method is the same as embodiment 1.
Comparative example 2
PET described in this comparative example slice preparation method the following steps are included:
It takes the PET slice of 100 parts of inherent viscosity 0.83dL/g that any function additive is not added to be modified, in drying box
It is spare after 120 DEG C of drying for 24 hours.The preparation method is the same as that of Example 1 for the BOPET film.
Comparative example 3
BOPET film described in this comparative example includes the PET of white graphite alkene compound the PET slice and 99 parts by weight of 1 parts by weight
Slice.The formula of the slice of PET described in this comparative example is shown in Table 1.The preparation method is the same as that of Example 1 for the modified white graphite alkene.It is described
The preparation method is the same as that of Example 1 for PET slice.The preparation method is the same as that of Example 1 for the BOPET film.
PET slice formulation described in 1 Examples 1 to 9 of table and comparative example 3
Embodiment 10
The performance of testing example 1~9 and the PET of comparative example 1~3 slice, test method are as follows: hardness GB/T 6739-
2006, wearability GB/T 3960-2016, warpage GB/T 25257-2010, transmitance GB/T 2410-2008.
Test result is shown in Table 2.
The performance indicator of 2 Examples 1 to 9 of table and the BOPET film of comparative example 1~3
Note: Examples 1 to 9 and the BOPET film of comparative example 1~3 with a thickness of 50 μm, without back protection film.
From table 2 it can be seen that the hardness of the slice of PET described in Examples 1 to 9 is higher, wearability compared with comparative example 1~3
More preferably, and it is able to maintain preferable transmitance.With the increase of modified white graphite alkene additive amount, the transparency change of PET slice is not
Greatly, but hardness and wearability have a biggish growth, and warpage degree has and largely reduces, when the additive amount of modified graphene
After increasing to 10 parts, hardness and wearability increase are unobvious, and when additive amount is greater than 15 parts, hardness and wearability have centainly
The decline of degree, and have a degree of reunion, higher cost.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should
Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention
And range.
Claims (10)
1. a kind of transparent BOPET film of the low warpage of scratch resistance, which is characterized in that the component comprising following weight percentage:
PET slice 80~99.5% and the compound PET slice 0.5~20% of white graphite alkene；
The compound PET slice of white graphite alkene contains the following parts by weight: modified 0.01~15 part of white graphite alkene, PET are cut
65~99.89 parts and 0.1~20 part of compatilizer of piece.
2. the transparent BOPET film of the low warpage of scratch resistance as described in claim 1, which is characterized in that the modified white graphite alkene
Preparation method the following steps are included:
(1), white graphite alkene is activated under strong acid, obtains white graphite alkene A；
(2), white graphite alkene A is placed in ethanol water, γ-mercaptopropyl trimethoxysilane is added, is stirred to react, taken out,
Washing, obtains white graphite alkene B；
(3), white graphite alkene B being added in the DMF solvent containing vinyl monomer, photoinitiator is added, ultraviolet light is taken out,
Washing, it is dry, obtain the modified white graphite alkene.
3. the transparent BOPET film of the low warpage of scratch resistance as described in claim 1, which is characterized in that the white graphite alkene, γ-
The parts by weight of mercaptopropyl trimethoxysilane, vinyl monomer and photoinitiator are as follows: 1 part of white graphite alkene, γ-mercapto propyl trimethoxy
0.5~15 part of base silane, 10~50 parts of vinyl monomer and 0.5~10 part of photoinitiator.
4. the transparent BOPET film of the low warpage of scratch resistance as described in claim 1, which is characterized in that the modified white graphite alkene
Additive amount be 0.5~10 parts by weight；The modified white graphite alkene is 1~10 layer of modified white graphite alkene.
5. the transparent BOPET film of the low warpage of scratch resistance as claimed in claim 4, which is characterized in that the white graphite alkene is compound
In PET slice, the PET slice is 80~99.6 parts by weight, and the compatilizer is 0.1~10 parts by weight.
6. the transparent BOPET film of the low warpage of scratch resistance as claimed in claim 2, which is characterized in that the vinyl monomer is
Methyl acrylate, acrylamide, ethyl acrylate, hydroxy-ethyl acrylate, methyl methacrylate, methyl propenoic acid glycidyl
At least one of ester, styrene, acrylonitrile and vinyl acetate.
7. the transparent BOPET film of the low warpage of scratch resistance as claimed in claim 2, which is characterized in that in following (a)~(c)
At least one of:
(a), the strong acid type is nitric acid and/or sulfuric acid；
(b), the photoinitiator type is at least one of 250,369,184,907,500 and 1173 photoinitiators；
(c) solvent used that washs is at least one of toluene, dimethylbenzene, acetone, butanone and tetrahydrofuran.
8. the transparent BOPET film of the low warpage of scratch resistance as described in claim 1, which is characterized in that the compatilizer connects for PP
Branch maleic anhydride.
9. the transparent BOPET film of the low warpage of the scratch resistance as described in any one of claim 1~8, which is characterized in that described white
The preparation method of the compound PET slice of graphene comprises the steps of:
(A), high-speed mixer heating temperature is opened to 60~120 DEG C, weighs PET slice, modified white graphite alkene and compatilizer, warp
5~60min of high speed disperser premixing dispersion；
(B), double screw extruder is opened, each area's temperature is 230~290 DEG C, and step (A) is pre-mixed scattered material and is added
In twin-screw extruder barrel, the compound PET of white graphite alkene is obtained through mixing, extrusion, water cooling, tie rod pelletizing and is sliced.
10. a kind of preparation method of the transparent BOPET film of the low warpage of the scratch resistance as described in any one of claim 1~9,
It is characterized in that comprising the steps of: the compound PET slice of white graphite alkene and PET slice are added to plastic film extruder barrel
In, it is squeezed out, air-cooled, vertical, horizontal biaxial tension, thermal finalization, winding, obtains the transparent BOPET film of the low warpage of the scratch resistance；
Each area's temperature range of plastic film extruder is 240~300 DEG C；Longitudinal stretching ratio is 210~480%, longitudinal stretching heat
Setting temperature is 65~150 DEG C；Cross directional stretch ratio is 280~560%, and cross directional stretch heat setting temperature is 80~210 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202041.1A CN109912940B (en) | 2019-03-15 | 2019-03-15 | Scratch-resistant low-warpage transparent BOPET film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202041.1A CN109912940B (en) | 2019-03-15 | 2019-03-15 | Scratch-resistant low-warpage transparent BOPET film and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109912940A true CN109912940A (en) | 2019-06-21 |
| CN109912940B CN109912940B (en) | 2021-05-11 |
Family
ID=66965236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202041.1A Active CN109912940B (en) | 2019-03-15 | 2019-03-15 | Scratch-resistant low-warpage transparent BOPET film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109912940B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111907165A (en) * | 2020-08-17 | 2020-11-10 | 李法雷 | Wear-resistant scratch-resistant antibacterial BOPET film and preparation method thereof |
| CN113372653A (en) * | 2021-08-03 | 2021-09-10 | 苏州度辰新材料有限公司 | Stiffness-increasing master batch for BOPP film, preparation method of stiffness-increasing master batch and BOPP film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2938666A1 (en) * | 2012-12-27 | 2015-11-04 | Peterson Chemical Technology, Inc. | Surface infusion of flexible cellular foams with novel liquid gel mixture |
| CN105860086A (en) * | 2016-03-30 | 2016-08-17 | 南昌航空大学 | Preparation method for hyperbranched polymer grafted carbon nanotube based on click chemistry |
| CN107793722A (en) * | 2016-11-22 | 2018-03-13 | 金发科技股份有限公司 | A kind of polycarbonate compositions and preparation method thereof |
-
2019
- 2019-03-15 CN CN201910202041.1A patent/CN109912940B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2938666A1 (en) * | 2012-12-27 | 2015-11-04 | Peterson Chemical Technology, Inc. | Surface infusion of flexible cellular foams with novel liquid gel mixture |
| CN105860086A (en) * | 2016-03-30 | 2016-08-17 | 南昌航空大学 | Preparation method for hyperbranched polymer grafted carbon nanotube based on click chemistry |
| CN107793722A (en) * | 2016-11-22 | 2018-03-13 | 金发科技股份有限公司 | A kind of polycarbonate compositions and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111907165A (en) * | 2020-08-17 | 2020-11-10 | 李法雷 | Wear-resistant scratch-resistant antibacterial BOPET film and preparation method thereof |
| CN113372653A (en) * | 2021-08-03 | 2021-09-10 | 苏州度辰新材料有限公司 | Stiffness-increasing master batch for BOPP film, preparation method of stiffness-increasing master batch and BOPP film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109912940B (en) | 2021-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6336046B2 (en) | Composite system with high impact resistance and heat retention | |
| CN106280697B (en) | High-covering black matte silk-screen printing ink for PET (polyethylene terephthalate) substrate | |
| JP5605803B2 (en) | Optical film, manufacturing method thereof, retardation film, polarizing plate, and electronic device | |
| CN103205190A (en) | Ultraviolet-cured anti-dazzle hard film and application thereof | |
| JP2014132353A (en) | Optical film and method of manufacturing the same | |
| CN104263229B (en) | The film build method of a kind of preparation method of antistatic UV coating and this antistatic UV coating | |
| CN109912940A (en) | A kind of transparent BOPET film and preparation method thereof of the low warpage of scratch resistance | |
| JP2015023284A (en) | Conductive coating solution composition with electromagnetic interference shielding function, production method of the same, and conductive coating film with electromagnetic interference shielding function produced using the composition | |
| CN104693993A (en) | Preparation method of optical wear-resistant hardening coating composition and hard coated film thereof | |
| CN101619116B (en) | Thermoplastic fluorine-containing acrylic resin and preparation method thereof | |
| CN105949695A (en) | Methacrylic resin composition, method for producing the same, and molded article | |
| JP5617639B2 (en) | Polymerizable composition and acrylic resin film | |
| CN107936170A (en) | A kind of heat-resistant polymethyl methacrylate and preparation method thereof | |
| CN110437599A (en) | A kind of PC/PMMA alloy material and preparation method thereof | |
| CN103131109A (en) | Antistatic ultraviolet-resistant ASA/PET alloy material and preparation method thereof | |
| CN104769466B (en) | polarizer | |
| CN109957221A (en) | A kind of transparent BOPET film of antistatic anti-scratch and preparation method thereof | |
| Wang et al. | Facile fabrication and modification of epoxy acrylate latexes by epoxy resin and silane coupling agent | |
| CN109867926A (en) | Compound PET slice of a kind of white graphite alkene of high-hardness, wearable and preparation method thereof | |
| CN101215410A (en) | Polybutylene terephthalate modified resin | |
| CN110746898A (en) | High strength protection film that shocks resistance | |
| CN209543944U (en) | One kind having the composite transparent conductive film of flexible " sandwich " sandwich structure | |
| CN110437570A (en) | A kind of multi-layer core-shell particle toughening composite material of polymethyl methacrylate and preparation method | |
| TWI726042B (en) | Light diffusing agent, light diffusing resin composition and molded body | |
| KR20190121320A (en) | Polarizer and Image Display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |