CN110103551A - A kind of stratified material and preparation method thereof that toughness is strengthened - Google Patents
A kind of stratified material and preparation method thereof that toughness is strengthened Download PDFInfo
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- CN110103551A CN110103551A CN201910530795.XA CN201910530795A CN110103551A CN 110103551 A CN110103551 A CN 110103551A CN 201910530795 A CN201910530795 A CN 201910530795A CN 110103551 A CN110103551 A CN 110103551A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
Abstract
The invention discloses the stratified materials and preparation method thereof that a kind of toughness is strengthened, the stratified material successively includes: PET base material film layer from inside to outside, first polyethylene layer, second polyethylene layer, PET middle film layer, first PVB layer, second PVB layer and PET external protection, wherein, polyethylene used in first polyethylene layer has the first the melt index I2a and I10a tested according to ASTM D-1238, polyethylene used in second polyethylene layer has the second the melt index I2b and I10b tested according to ASTM D-1238, and wherein, the relationship of I2a and I10a meets 0.2 < (I2a:I10a) < 0.4, the relationship of I2b and I10b meets 0.4 < (I2b:I10b) < 0. 6.The toughness of stratified material of the invention and anti-penetration ability increase substantially, and improve the integral strength of stratified material.
Description
Technical field
The present invention relates to stratified material technical field, the stratified material strengthened especially with regard to a kind of toughness and its preparation
Method.
Background technique
Polyethylene (polyethylene, abbreviation PE) is a kind of aggregated thermoplastic resin obtained of ethylene.Industrially,
It also include the copolymer of ethylene and a small amount of alpha-olefin.Polyethylene is odorless, nontoxic, feel ceraceous, has excellent resistance to low temperature
(minimum to use reachable -100~-70 DEG C of temperature), chemical stability is good, and the erosion for being resistant to most of soda acids (is aoxidized intolerant to having
The acid of property).Common solvent is not dissolved under room temperature, water imbibition is small, and electrical insulating property is excellent.
Prior art CN107399130B discloses a kind of automobile cabin decorative panel, including at least four-layer structure, wherein
Disinfection filtering purifying layer (2) is processed by polypropylene (PP) resin, polyethylene (PE) resin and inorganic nano bactericidal purifying solution
It is made.
Prior art CN107053800B discloses a kind of single polyethylene compound package material, by hot sealing layer and surface
Printing layer is combined, and hot sealing layer is made of metallocene PE and low density polyethylene, and surface printing layer is by linea low density
Polyethylene LLDPE and low density polyethylene composition, hot sealing layer and surface printing layer are compound by solvent-free combination process.System
Preparation Method includes: the preparation of (1) hot sealing layer；(2) preparation of surface printing layer；(3) surface printing layer by after printing in intaglio plate again
It is compound using solvent-free combination process with hot sealing layer.
Prior art CN101959907B is related to a kind of purposes of linear polyethylene, has and shows that there are certain long-chains
The MIR of branching has the density that 0.94g/cm3 is arrived according to ASTM D4703/D1505 measurement 0.91, from 0.05 to 1g/10min
I2.16 (MI), and I21.6/I2.16 (MIR), the MI and MIR more than 35 survey at 190 DEG C according to ASTM 1238D
25 μm of thickness fixed and as defined herein of reference film according to ASTM D882-02 100% elongation MD tension with
And at least difference of 15MPa between MD10% biasing yield stress.
Prior art CN106988129B is related to a kind of tobacco business conveyer belt, in particular to a kind of high-strength polyethylene
Light-type conveyer belt and its manufacturing method.High-strength composite yarn woven fabric sizing provided by the invention；High-strength composite yarn after sizing
Polyethylene powders primary coat is used on fabric, and carries out thermal finalization at 160~180 DEG C, is flattened through hot-pressing roller, and priming coat is constituted；?
High-strength polyethylene film is squeezed out using casting technique on priming coat, combines polyethylene with priming coat, constitutes polyethylene facestock,
Up to high-strength polyethylene light-type conveyer belt after cooling room temperature.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide the stratified materials and preparation method thereof that a kind of toughness is strengthened, and can overcome existing
The shortcomings that technology.
To achieve the above object, the present invention provides the stratified material that a kind of toughness is strengthened, the stratified material is from inside to outside
It successively include: PET base material film layer, the first polyethylene layer, the second polyethylene layer, PET middle film layer, the first PVB layer, the 2nd PVB
Layer and PET external protection, wherein polyethylene used in the first polyethylene layer has the tested according to ASTM D-1238
One melt index I2a and I10a, polyethylene used in the second polyethylene layer have second tested according to ASTM D-1238
Melt index I2b and I10b, and wherein, the relationship of I2a and I10a meet 0.2 < (I2a:I10a) < 0.4, I2b and
The relationship of I10b meets 0.4 < (I2b:I10b) < 0.6.
In a preferred embodiment, PVB used in the first PVB layer has the tested according to ASTM D-1238
Three melt index I2c and I10c, PVB used in the second PVB layer, which have to be melted according to the 4th that ASTM D-1238 test, to be referred to
Number I2d and I10d, and wherein, the relationship of I2c and I10c meet 0.35 < (I2c:I10c) < 0.55, I2d's and I10d
Relationship meets 0.55 < (I2d:I10d) < 0.75.
In a preferred embodiment, wherein the relationship of I2a and I2c meet 1.1 < (I2a:I2c) < 1.3, I10a with
The relationship of I10c meets 1.2 < (I10a:I10c) < 1.4.
In a preferred embodiment, wherein the relationship of I2b and I2d meet 1.2 < (I2b:I2d) < 1.4, I10b with
The relationship of I10d meets 1.1 < (I10b:I10d) < 1.3.
In a preferred embodiment, the first polyethylene layer with a thickness of 30-50 microns, the thickness of the second polyethylene layer
It is 45-85 microns, the thickness of the second polyethylene layer is 1.5-1.7 times of the thickness of the first polyethylene layer, third polyethylene layer
With a thickness of 50-70 microns, the 4th polyethylene layer with a thickness of 55-91 microns, the thickness of the 4th polyethylene layer is third polyethylene
1.1-1.3 times of the thickness of layer.
In a preferred embodiment, PET base material thicknesses of layers is 30-50 microns, and PET middle film layer is with a thickness of 50-
70 microns, PET external protection is with a thickness of 50-70 microns.
The present invention also provides a kind of methods for preparing the stratified material that toughness as the aforementioned is strengthened, and include the following steps:
Stack gradually PET base material film layer, the first polyethylene layer, the second polyethylene layer, PET middle film layer, the first PVB layer, the second PVB layer
And PET external protection, obtain lamilate；And hot pressing is carried out to lamilate.
In a preferred embodiment, hot pressing is carried out to lamilate to include the following steps: with the first parameter to lamilate
Carry out first stage hot pressing, wherein the first parameter is that hot pressing temperature is 140-150 DEG C, hot pressing pressure 2-4MPa, hot pressing time
For 20-30min；Second stage hot pressing is carried out to lamilate with the second parameter, wherein the second parameter is that hot pressing temperature is 165-
175 DEG C, hot pressing pressure 12-25MPa, hot pressing time 20-30min；Phase III heat is carried out to lamilate with third parameter
Pressure, wherein third parameter is that hot pressing temperature is 175-190 DEG C, hot pressing pressure 12-25MPa, hot pressing time 20-30min；
And fourth stage hot pressing is carried out to lamilate with the 4th parameter, wherein it is 120-130 DEG C that the 4th parameter, which is hot pressing temperature, heat
Pressure pressure is 2-4MPa, hot pressing time 20-30min.
In a preferred embodiment, wherein the hot pressing pressure of second stage hot pressing is the hot pressing of first stage hot pressing
5 times or more of pressure.
In a preferred embodiment, wherein the hot pressing pressure of phase III hot pressing is the hot pressing of first stage hot pressing
5 times or more of pressure, and the hot pressing pressure of phase III hot pressing is greater than the hot pressing pressure of second stage hot pressing.
Compared with prior art, the stratified material and preparation method thereof that toughness of the invention is strengthened has the advantages that this
Application provides a kind of stratified material and preparation method thereof that toughness is strengthened.Inventors have found that working as the melt index of each layer structure
When meeting certain condition, the toughness of material and anti-penetration ability will be increased substantially, and basic principle may be: melt index represents
The size of material mobility in hot pressing, melt index is bigger with stress variation, material mobility in multistage hot pressing
Change it is bigger, the change dramatically of mobility can change the storeroom interface of material occupied state and interface material by
The micro- state of power, such variation can change the contact situation of material interface, to improve the boundary strength of material, this is also just anti-
The generation of degumming and other failure conditions is stopped, to improve the integral strength of multilayer material.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the stratified material that toughness according to an embodiment of the present invention is strengthened.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.Wherein, the test method of the application is as follows: melt index I2 according to ASTM D-1238 (method B),
Under the test temperature of the PE as defined in standard and EVA, measured under 2.16kg (I2) and 10kg (I10) load.Tearing strength ginseng
ASTM D1922MD (machine direction) and CD (transverse direction) are seen, according to the specific descriptions of the test of the standard referring to the prior art
(Elmendorf method) method disclosed in CN106457793B.Puncture intensity is referring to ASTM D5748, according to the survey of the standard
The specific descriptions of examination are referring to prior art CN106457793B." a, b, c, d " letter of melt index suffix is in the present invention
In order to distinguish the first-the four melt index.
Fig. 1 is the structural schematic diagram for the stratified material that toughness according to an embodiment of the present invention is strengthened.As shown, this
The stratified material that the toughness of invention is strengthened successively includes: PET base material film layer 101, the first polyethylene layer 102, second from inside to outside
Polyethylene layer 103, PET middle film layer 104, the first PVB layer 105, the second PVB layer 106 and PET external protection 107.
Embodiment 1
Stratified material successively include: from inside to outside PET base material film layer, the first polyethylene layer, the second polyethylene layer, in PET
Between film layer, the first PVB layer, the second PVB layer and PET external protection, wherein polyethylene used in the first polyethylene layer has
According to the first melt index I2a and I10a that ASTM D-1238 is tested, polyethylene used in the second polyethylene layer has root
According to the second melt index I2b and I10b that ASTM D-1238 is tested, and wherein, the relationship of I2a and I10a meet (I2a:
I10a the relationship of)=0.2, I2b and I10b meets (I2b:I10b)=0.4.PVB used in first PVB layer has basis
Third the melt index I2c and I10c of ASTM D-1238 test, PVB used in the second PVB layer have according to ASTM D-
4th melt index I2d and I10d of 1238 tests, and wherein, the relationship of I2c and I10c meet (I2c:I10c)=
The relationship of 0.35, I2d and I10d meets (I2d:I10d)=0.55.Wherein, I2a and I2c relationship meet (I2a:I2c)=
The relationship of 1.1, I10a and I10c meets (I10a:I10c)=1.2.Wherein, I2b and I2d relationship meet (I2b:I2d)=
The relationship of 1.2, I10b and I10d meets (I10b:I10d)=1.1.First polyethylene layer with a thickness of 30 microns, the second poly- second
Alkene layer with a thickness of 45 microns, third polyethylene layer with a thickness of 50 microns, the 4th polyethylene layer with a thickness of 55 microns.PET
Substrate thicknesses of layers is 30 microns, and PET middle film layer is with a thickness of 50 microns, and PET external protection is with a thickness of 50 microns.Stratified material
Preparation method include the following steps: to stack gradually PET base material film layer, the first polyethylene layer, the second polyethylene layer, among PET
Film layer, the first PVB layer, the second PVB layer and PET external protection, obtain lamilate；Hot pressing is carried out to lamilate.To lamilate
It carries out hot pressing to include the following steps: to carry out first stage hot pressing to lamilate with the first parameter, wherein the first parameter is hot pressing temperature
Degree is 140 DEG C, hot pressing pressure 2MPa, hot pressing time 20min；With the second parameter to laminated (by first stage hot pressing)
Body carries out second stage hot pressing, wherein the second parameter is that hot pressing temperature is 165 DEG C, hot pressing pressure 10MPa, and hot pressing time is
20min；Phase III hot pressing is carried out to (by second stage hot pressing) lamilate with third parameter, wherein third parameter is
Hot pressing temperature is 175 DEG C, hot pressing pressure 12MPa, hot pressing time 20min；With the 4th parameter to (by phase III hot pressing
) lamilate progress fourth stage hot pressing, wherein the 4th parameter is that hot pressing temperature is 120 DEG C, hot pressing pressure 2MPa, hot pressing
Time is 20min.Wherein, the hot pressing pressure of second stage hot pressing is 5 times of the hot pressing pressure of first stage hot pressing or more.Its
In, the hot pressing pressure of phase III hot pressing is 5 times of the hot pressing pressure of first stage hot pressing or more, and phase III hot pressing
Hot pressing pressure is greater than the hot pressing pressure of second stage hot pressing.
Embodiment 2
Stratified material successively include: from inside to outside PET base material film layer, the first polyethylene layer, the second polyethylene layer, in PET
Between film layer, the first PVB layer, the second PVB layer and PET external protection, wherein polyethylene used in the first polyethylene layer has
According to the first melt index I2a and I10a that ASTM D-1238 is tested, polyethylene used in the second polyethylene layer has root
According to the second melt index I2b and I10b that ASTM D-1238 is tested, and wherein, the relationship of I2a and I10a meet (I2a:
I10a the relationship of)=0.4, I2b and I10b meets (I2b:I10b)=0.6.PVB used in first PVB layer has basis
Third the melt index I2c and I10c of ASTM D-1238 test, PVB used in the second PVB layer have according to ASTM D-
4th melt index I2d and I10d of 1238 tests, and wherein, the relationship of I2c and I10c meet (I2c:I10c)=
The relationship of 0.55, I2d and I10d meets (I2d:I10d)=0.75.Wherein, I2a and I2c relationship meet (I2a:I2c)=
The relationship of 1.3, I10a and I10c meets (I10a:I10c)=1.4.Wherein, I2b and I2d relationship meet (I2b:I2d)=
The relationship of 1.4, I10b and I10d meets (I10b:I10d)=1.3.First polyethylene layer with a thickness of 50 microns, the second poly- second
Alkene layer with a thickness of 85 microns, third polyethylene layer with a thickness of 70 microns, the 4th polyethylene layer with a thickness of 91 microns.PET
Substrate thicknesses of layers is 50 microns, and PET middle film layer is with a thickness of 70 microns, and PET external protection is with a thickness of 70 microns.Stratified material
Preparation method include the following steps: to stack gradually PET base material film layer, the first polyethylene layer, the second polyethylene layer, among PET
Film layer, the first PVB layer, the second PVB layer and PET external protection, obtain lamilate；Hot pressing is carried out to lamilate.To lamilate
It carries out hot pressing to include the following steps: to carry out first stage hot pressing to lamilate with the first parameter, wherein the first parameter is hot pressing temperature
Degree is 150 DEG C, hot pressing pressure 4MPa, hot pressing time 30min；Second stage hot pressing is carried out to lamilate with the second parameter,
Wherein, it is 175 DEG C that the second parameter, which is hot pressing temperature, hot pressing pressure 22MPa, hot pressing time 30min；With third parameter to layer
Zoarium carries out phase III hot pressing, wherein third parameter is that hot pressing temperature is 190 DEG C, hot pressing pressure 25MPa, hot pressing time
For 30min；Fourth stage hot pressing is carried out to lamilate with the 4th parameter, wherein the 4th parameter is that hot pressing temperature is 130 DEG C, heat
Pressure pressure is 4MPa, hot pressing time 30min.Wherein, the hot pressing pressure of second stage hot pressing is the hot pressing of first stage hot pressing
5 times or more of pressure.Wherein, the hot pressing pressure of phase III hot pressing is 5 times of the hot pressing pressure of first stage hot pressing or more, and
And the hot pressing pressure of phase III hot pressing is greater than the hot pressing pressure of second stage hot pressing.
Embodiment 3
Stratified material successively include: from inside to outside PET base material film layer, the first polyethylene layer, the second polyethylene layer, in PET
Between film layer, the first PVB layer, the second PVB layer and PET external protection, wherein polyethylene used in the first polyethylene layer has
According to the first melt index I2a and I10a that ASTM D-1238 is tested, polyethylene used in the second polyethylene layer has root
According to the second melt index I2b and I10b that ASTM D-1238 is tested, and wherein, the relationship of I2a and I10a meet (I2a:
I10a the relationship of)=0.3, I2b and I10b meets (I2b:I10b)=0.5.PVB used in first PVB layer has basis
Third the melt index I2c and I10c of ASTM D-1238 test, PVB used in the second PVB layer have according to ASTM D-
4th melt index I2d and I10d of 1238 tests, and wherein, the relationship of I2c and I10c meet (I2c:I10c)=
The relationship of 0.45, I2d and I10d meets (I2d:I10d)=0.65.Wherein, I2a and I2c relationship meet (I2a:I2c)=
The relationship of 1.2, I10a and I10c meets (I10a:I10c)=1.3.Wherein, I2b and I2d relationship meet (I2b:I2d)=
The relationship of 1.3, I10b and I10d meets (I10b:I10d)=1.2.First polyethylene layer with a thickness of 40 microns, the second poly- second
Alkene layer with a thickness of 60 microns, third polyethylene layer with a thickness of 60 microns, the 4th polyethylene layer with a thickness of 70 microns.PET
Substrate thicknesses of layers is 40 microns, and PET middle film layer is with a thickness of 60 microns, and PET external protection is with a thickness of 60 microns.Stratified material
Preparation method include the following steps: to stack gradually PET base material film layer, the first polyethylene layer, the second polyethylene layer, among PET
Film layer, the first PVB layer, the second PVB layer and PET external protection, obtain lamilate；Hot pressing is carried out to lamilate.To lamilate
It carries out hot pressing to include the following steps: to carry out first stage hot pressing to lamilate with the first parameter, wherein the first parameter is hot pressing temperature
Degree is 145 DEG C, hot pressing pressure 3MPa, hot pressing time 25min；Second stage hot pressing is carried out to lamilate with the second parameter,
Wherein, it is 170 DEG C that the second parameter, which is hot pressing temperature, hot pressing pressure 20MPa, hot pressing time 25min；With third parameter to layer
Zoarium carries out phase III hot pressing, wherein third parameter is that hot pressing temperature is 180 DEG C, hot pressing pressure 22MPa, hot pressing time
For 25min；Fourth stage hot pressing is carried out to lamilate with the 4th parameter, wherein the 4th parameter is that hot pressing temperature is 125 DEG C, heat
Pressure pressure is 3MPa, hot pressing time 25min.Wherein, the hot pressing pressure of second stage hot pressing is the hot pressing of first stage hot pressing
5 times or more of pressure.Wherein, the hot pressing pressure of phase III hot pressing is 5 times of the hot pressing pressure of first stage hot pressing or more, and
And the hot pressing pressure of phase III hot pressing is greater than the hot pressing pressure of second stage hot pressing.
Comparative example 1
Difference from Example 1 is: stratified material successively includes: PET base material film layer, the first polyethylene from inside to outside
Layer, the second polyethylene layer, PET middle film layer, third polyethylene layer, the 4th polyethylene layer and PET external protection.
Comparative example 2
Difference from Example 1 is: stratified material successively includes: PET base material film layer, the first polyethylene from inside to outside
Layer, the second polyethylene layer, the first PVB layer, the second PVB layer and PET external protection.
Comparative example 3
Difference from Example 1 is: the relationship of I2a and I10a meets (I2a:I10a)=0.5.
Comparative example 4
Difference from Example 1 is: the relationship of I2b and I10b meets (I2b:I10b)=0.3.
Comparative example 5
Difference from Example 1 is: the relationship of I2c and I10c meets (I2c:I10c)=0.2.
Comparative example 6
Difference from Example 1 is: the relationship of I2d and I10d meets (I2d:I10d)=0.85.
Comparative example 7
Difference from Example 1 is: the relationship of I2a and I2c meets (I2a:I2c)=1.6.
Comparative example 8
Difference from Example 1 is: the relationship of I10a and I10c meets (I10a:I10c)=0.8.
Comparative example 9
Difference from Example 1 is: the relationship of I2b and I2d meets (I2b:I2d)=1.5.
Comparative example 10
Difference from Example 1 is: the relationship of I10b and I10d meets (I10b:I10d)=1.
Comparative example 11
Difference from Example 1 is: the first polyethylene layer with a thickness of 40 microns, the second polyethylene layer with a thickness of
80 microns.
Comparative example 12
Difference from Example 1 is: third polyethylene layer with a thickness of 60 microns, the 4th polyethylene layer with a thickness of
90 microns.
Comparative example 13
Difference from Example 1 is: PET middle film layer is with a thickness of 80 microns.
Comparative example 14
Difference from Example 1 is: the first parameter is that hot pressing temperature is 160 DEG C, hot pressing pressure 5MPa, when hot pressing
Between be 40min.
Comparative example 15
Difference from Example 1 is: the first parameter is that hot pressing temperature is 145 DEG C, hot pressing pressure 3MPa, when hot pressing
Between be 25min；Second parameter is that hot pressing temperature is 170 DEG C, hot pressing pressure 12MPa, hot pressing time 25min.
Comparative example 16
Difference from Example 1 is: the first parameter is that hot pressing temperature is 145 DEG C, hot pressing pressure 3MPa, when hot pressing
Between be 25min；Third parameter is that hot pressing temperature is 185 DEG C, hot pressing pressure 12MPa, hot pressing time 25min.
Tearing strength and puncture intensity test are carried out to each embodiment and comparative example, as a result referring to table 1.
Table 1
Above-mentioned experimental result can be seen that the toughness of stratified material of the invention and anti-penetration ability increases substantially, and mention
The high integral strength of stratified material.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. the stratified material that a kind of toughness is strengthened, it is characterised in that: layered material successively includes: PET base material from inside to outside
It is protected outside film layer, the first polyethylene layer, the second polyethylene layer, PET middle film layer, the first PVB layer, the second PVB layer and PET
Layer, wherein polyethylene used in first polyethylene layer has the first melt index tested according to ASTM D-1238
I2a and I10a, polyethylene used in second polyethylene layer, which has to be melted according to second that ASTM D-1238 test, to be referred to
Number I2b and I10b, and wherein, the relationship of the I2a and I10a meet 0.2 < (I2a:I10a) < 0.4, the I2b and
The relationship of I10b meets 0.4 < (I2b:I10b) < 0.6.
2. the stratified material that toughness as described in claim 1 is strengthened, it is characterised in that: PVB used in first PVB layer
With third the melt index I2c and I10c tested according to ASTM D-1238, PVB used in second PVB layer has
According to the 4th the melt index I2d and I10d that ASTM D-1238 is tested, and wherein, the relationship of the I2c and I10c meet
The relationship of 0.35 < (I2c:I10c) < 0.55, the I2d and I10d meet 0.55 < (I2d:I10d) < 0.75.
3. the stratified material that toughness as claimed in claim 2 is strengthened, it is characterised in that: wherein, the relationship of the I2a and I2c
The relationship for meeting 1.1 < (I2a:I2c) < 1.3, the I10a and I10c meets 1.2 < (I10a:I10c) < 1.4.
4. the stratified material that toughness as claimed in claim 3 is strengthened, it is characterised in that: wherein, the relationship of the I2b and I2d
The relationship for meeting 1.2 < (I2b:I2d) < 1.4, the I10b and I10d meets 1.1 < (I10b:I10d) < 1.3.
5. the stratified material that toughness as claimed in claim 4 is strengthened, it is characterised in that: first polyethylene layer with a thickness of
30-50 microns, second polyethylene layer with a thickness of 45-85 microns, the thickness of second polyethylene layer is described first
1.5-1.7 times of the thickness of polyethylene layer, the third polyethylene layer with a thickness of 50-70 microns, the 4th polyethylene layer
With a thickness of 55-91 microns, the thickness of the 4th polyethylene layer is 1.1-1.3 times of the thickness of the third polyethylene layer.
6. the stratified material that toughness as claimed in claim 5 is strengthened, it is characterised in that: the PET base material thicknesses of layers is 30-
50 microns, the PET middle film layer is with a thickness of 50-70 microns, and the PET external protection is with a thickness of 50-70 microns.
7. a kind of method for the stratified material that the toughness prepared as described in one of claim 1-6 is strengthened, it is characterised in that: described
Method includes the following steps:
Stack gradually PET base material film layer, the first polyethylene layer, the second polyethylene layer, PET middle film layer, the first PVB layer, second
PVB layer and PET external protection, obtain lamilate；And
Hot pressing is carried out to the lamilate.
8. the method for claim 7, it is characterised in that: carry out hot pressing to the lamilate and include the following steps:
First stage hot pressing is carried out to the lamilate with the first parameter, wherein it is 140- that first parameter, which is hot pressing temperature,
150 DEG C, hot pressing pressure 2-4MPa, hot pressing time 20-30min；
Second stage hot pressing is carried out to the lamilate with the second parameter, wherein it is 165- that second parameter, which is hot pressing temperature,
175 DEG C, hot pressing pressure 12-25MPa, hot pressing time 20-30min；
Phase III hot pressing is carried out to the lamilate with third parameter, wherein it is 175- that the third parameter, which is hot pressing temperature,
190 DEG C, hot pressing pressure 12-25MPa, hot pressing time 20-30min；And
Fourth stage hot pressing is carried out to the lamilate with the 4th parameter, wherein it is 120- that the 4th parameter, which is hot pressing temperature,
130 DEG C, hot pressing pressure 2-4MPa, hot pressing time 20-30min.
9. method according to claim 8, it is characterised in that: wherein, the hot pressing pressure of second stage hot pressing is the first stage
5 times or more of the hot pressing pressure of hot pressing.
10. method as claimed in claim 9, it is characterised in that: wherein, the hot pressing pressure of phase III hot pressing is the first stage
5 times or more of the hot pressing pressure of hot pressing, and the hot pressing pressure of the phase III hot pressing is greater than the second stage hot pressing
Hot pressing pressure.
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Effective date of registration: 20221212 Address after: No. 313, Donghai Avenue, Dongdao, Zhanjiang, Guangdong 524000 Patentee after: GUANGDONG GUANHAO HIGH-TECH CO.,LTD. Address before: No.15, Wuzhong District, xiawubao, Yinglin Town, Jinjiang City, Quanzhou City, Fujian Province, 362200 Patentee before: QUANZHOU KANGXIN CHEMICAL TECHNOLOGY Co.,Ltd. |