CN111718530A - Polyolefin composition and PO base material film and PO protective film thereof - Google Patents

Polyolefin composition and PO base material film and PO protective film thereof Download PDF

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CN111718530A
CN111718530A CN202010647966.XA CN202010647966A CN111718530A CN 111718530 A CN111718530 A CN 111718530A CN 202010647966 A CN202010647966 A CN 202010647966A CN 111718530 A CN111718530 A CN 111718530A
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polyolefin
ethylene
prepared
olefin monomer
carbon atoms
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张程
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Shanghai Guke Adhesive Tape Technology Co ltd
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Shanghai Guke Adhesive Tape Technology Co ltd
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    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22Plastics; Metallised plastics
    • C09J7/24Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/241Polyolefin, e.g.rubber
    • C09J7/243Ethylene or propylene polymers
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    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/16Ethene-propene or ethene-propene-diene copolymers
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    • C08J2453/00Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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    • C08L2201/00Properties
    • C08L2201/04Antistatic
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    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
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    • C09J2423/00Presence of polyolefin
    • C09J2423/04Presence of homo or copolymers of ethene
    • C09J2423/046Presence of homo or copolymers of ethene in the substrate
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    • C09J2423/00Presence of polyolefin
    • C09J2423/10Presence of homo or copolymers of propene
    • C09J2423/106Presence of homo or copolymers of propene in the substrate
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    • C09J2423/00Presence of polyolefin
    • C09J2423/16Presence of ethen-propene or ethene-propene-diene copolymers
    • C09J2423/166Presence of ethen-propene or ethene-propene-diene copolymers in the substrate
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    • C09J2453/00Presence of block copolymer
    • C09J2453/006Presence of block copolymer in the substrate

Abstract

The invention belongs to the technical field of PO (polyolefin) films, and particularly relates to a polyolefin composition, a PO base material film and a PO protective film. The polyolefin composition comprises: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared by the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared by at least one olefin monomer with the carbon number not less than 4 is (2-5): 1. the PO substrate film prepared by mixing polyethylene, polypropylene, ethylene-propylene random copolymer, ethylene-butene copolymer and ethylene-octene copolymer only has better elongation, and the longitudinal and transverse elongations are close to 1: 1, and the PO substrate film also has an antistatic effect, has not too high film toughness and is suitable for a viscosity-reducing protective film.

Description

Polyolefin composition and PO base material film and PO protective film thereof
Technical Field
The invention belongs to the technical field of PO (polyolefin) films, and particularly relates to a polyolefin composition, a PO base material film and a PO protective film.
Background
The PO substrate membrane in the PO protection film often has the expansion inhomogeneous, lead to the UV glue film can't reduce the adhesion of glue film after ultraviolet irradiation, and transversely and vertically expand unevenly, can lead to taking place to omit or the section is brilliant when choosing the crystalline grain, seriously influence the PO protection film and be used for the chip, glass, LED, the protection in course of working such as flexible circuit board, PO substrate membrane easily shakes when still leading to cutting the wafer simultaneously and leads to the back collapse phenomenon, and common polyethylene, the PO substrate membrane toughness of polypropylene preparation is too high, also do not benefit to and be applied to the visbreaking protection film.
Therefore, the present invention is needed to develop a composition having better elongation and having an elongation in the machine direction and the transverse direction close to 1: 1, also has antistatic effect, has not too high film toughness, and is suitable for PO substrate films with viscosity reduction protection.
Disclosure of Invention
In order to solve the above technical problems, a first aspect of the present invention provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared by the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared by at least one olefin monomer with the carbon number not less than 4 is (2-5): 1.
in a preferred embodiment of the present invention, the polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms includes a polyolefin prepared from one olefin monomer having 2 to 3 carbon atoms, and a polyolefin prepared from two monomers of ethylene and propylene.
In a preferred embodiment of the present invention, the polyolefin prepared from two monomers, i.e., ethylene and propylene, is an ethylene-propylene random copolymer and/or an ethylene-propylene block copolymer.
As a preferable technical scheme of the invention, the heat distortion temperature of the ethylene-propylene random copolymer is 80-110 ℃.
As a preferred technical scheme of the invention, the polyolefin with 2-3 carbon atoms comprises a density of 0.91-0.96 g/cm3The polyethylene and the polypropylene with the flexural modulus of 1770-5490 MPa.
As a preferred embodiment of the present invention, the polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms is selected from one or more of ethylene-1-hexene copolymer, ethylene-butene copolymer, ethylene-propylene-hexene copolymer, and ethylene-octene copolymer.
As a preferable technical scheme of the invention, the melt index of the ethylene-butylene copolymer is 0.9-1.2 g/10 min.
In a second aspect of the invention, there is provided a PO substrate membrane comprising the above polyolefin composition.
A third aspect of the invention provides a PO protective film comprising the above PO base material film.
As a preferable technical solution of the present invention, the PO protective film further includes a glue layer.
The invention also provides the application of the PO protective film, and the PO protective film is applied to the protection of chips, glass, LEDs, flexible circuit boards and the like in the processing process.
Has the advantages that: the PO substrate film prepared by mixing polyethylene, polypropylene, ethylene-propylene random copolymer, ethylene-butene copolymer and ethylene-octene copolymer only has better elongation, and the longitudinal and transverse elongations are close to 1: 1, and the PO substrate film also has an antistatic effect, has not too high film toughness and is suitable for a viscosity-reducing protective film.
Detailed Description
The technical features of the technical solutions provided by the present invention are further clearly and completely described below with reference to the specific embodiments, and the scope of protection is not limited thereto.
The words "preferred", "more preferred", and the like, in the present invention refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
"Polymer" means a polymeric compound prepared by polymerizing monomers of the same or different types. The generic term "polymer" embraces the terms "homopolymer", "copolymer", "terpolymer" and "interpolymer". "interpolymer" means a polymer prepared by polymerizing at least two different monomers. The generic term "interpolymer" includes the term "copolymer" (which is generally used to refer to polymers prepared from two different monomers) and the term "terpolymer" (which is generally used to refer to polymers prepared from three different monomers). It also includes polymers made by polymerizing four or more monomers. "blend" means a polymer formed by two or more polymers being mixed together by physical or chemical means.
In order to solve the above technical problems, the first aspect of the present invention provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms.
In one embodiment, the polyolefin composition comprises: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms.
In one embodiment, the mass ratio of the polyolefin I prepared from the olefin monomer having not more than 3 carbon atoms to the polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms is (2 to 5): 1.
preferably, the mass ratio of the polyolefin I prepared by the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared by at least one olefin monomer with the carbon number not less than 4 is (3-4): 1.
more preferably, the mass ratio of the polyolefin I prepared from the olefin monomer having the carbon number of not more than 3 to the polyolefin II prepared from at least one olefin monomer having the carbon number of not less than 4 is 3.5: 1.
polyolefins I prepared from olefin monomers having not more than 3 carbon atoms
In the present invention, the polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms means that the carbon atoms of the polymerized monomers in the polyolefin I are not more than 3 and the polymerized monomers may be one monomer or two monomers.
In one embodiment, the polyolefin I prepared from olefin monomers with the carbon number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon number of 2-3, and polyolefin prepared from two monomers of ethylene and propylene.
In one embodiment, the mass ratio of the polyolefin prepared from one olefin monomer with 2-3 carbon atoms to the polyolefin prepared from two monomers of ethylene and propylene is (2-4): 1.
preferably, the mass ratio of the polyolefin prepared from one olefin monomer with 2-3 carbon atoms to the polyolefin prepared from two monomers of ethylene and propylene is 3: 1.
polyolefin prepared from olefin monomer with 2-3 carbon atoms
In the invention, the polyolefin prepared from one olefin monomer with 2-3 carbon atoms refers to the polyolefin with only one polymerized monomer and the carbon atoms of the polymerized monomer being 2 or 3.
In one embodiment, the polyolefin having 2 to 3 carbon atoms comprises a density of 0.91 to 0.96g/cm3The polyethylene and the polypropylene with the flexural modulus of 1770-5490 MPa.
In one embodiment, the density is 0.91 to 0.96g/cm3The mass ratio of the polyethylene to the polypropylene with the flexural modulus of 1770-5490 MPa is (1.5-2.2): 1.
preferably, the density is 0.91-0.96 g/cm3The mass ratio of the polyethylene to the polypropylene with the flexural modulus of 1770-5490 MPa is 1.7: 1.
(density of 0.91 to 0.96 g/cm)3Polyethylene (C)
In one embodiment, the density is 0.91 to 0.96g/cm3The polyethylene is selected from polyethylene with the density of 0.91-0.93 g/cm3The polyethylene has a density of 0.926-0.953 g/cm3The polyethylene has a density of 0.941-0.96 g/cm3One or more of (a) polyethylene.
Preferably, the density is 0.91 to0.96g/cm3The polyethylene has a density of 0.941-0.96 g/cm3The polyethylene of (1).
In the invention, the density is 0.941-0.96 g/cm3The polyethylene is high-density polyethylene, and molecular chains of the high-density polyethylene are regularly arranged because no branched chain exists on the molecular chains. The high-density polyethylene (HDPE) is a white powder or granular product, is nontoxic and odorless, has the crystallinity of 80-90 percent, the softening point of 125-l 35 ℃, and the use temperature of 100 ℃; the hardness, tensile strength and creep property are better than those of low-density polyethylene; the wear resistance, the electrical insulation, the toughness and the cold resistance are good; the chemical stability is good, and the paint is not dissolved in any organic solvent at room temperature, and is resistant to corrosion of acid, alkali and various salts; the film has small permeability to water vapor and air and low water absorption; the ageing resistance is poor, the environmental stress cracking resistance is inferior to that of low density polyethylene, and the thermal oxidation in particular reduces the performance. The high-density polyethylene film has lower heat distortion temperature under the stress condition.
In one embodiment, the density is 0.941 to 0.96g/cm3The polyethylene is selected from one or more of a cyclopentadiene name TR144, a Mount-thereto petrochemical HD5502GA, a Singapore HHM5502, a medium petrochemical Fuji HHM5502LW and a medium petrochemical cyclopentadiene name HHM5502 ST.
Preferably, the density is 0.941-0.96 g/cm3The polyethylene of (a) was the cyclopentadienyl petrochemical TR144, purchased from southern hai union energy limited, guangdong.
(Polypropylene with a flexural modulus of 1770 to 5490 MPa)
In the present invention, the flexural modulus is also called flexural modulus. Refers to the bending stress versus strain resulting from bending. The ability of the material to resist bending deformation within elastic limits.
In the present invention, the polypropylene is a polymer obtained by addition polymerization of propylene. Is a white wax-like material, has a transparent and light appearance, and has a density of 0.89 to 0.91g/cm3The environment-friendly flame-retardant polyester resin is flammable, has a melting point of 165 ℃, is softened at about 155 ℃, has a use temperature range of-30-140 ℃, can resist corrosion of acid, alkali, salt solution and various organic solvents at a temperature below 80 ℃, and can be decomposed at a high temperature under the action of oxidation.
In one embodiment, the polypropylene has a flexural modulus of 1770 to 5490 MPa.
Preferably, the flexural modulus of the polypropylene is 2000-3000 MPa.
More preferably, the polypropylene has a flexural modulus of 2350MPa and a mark number of
Figure BDA0002573814830000041
2100, purchased from LG chemical of korea.
In the present invention, the flexural modulus of the polypropylene is measured under the condition of 6.40mm in accordance with ASTM D790.
Polyolefins prepared from two monomers, ethylene and propylene
In the present invention, the polyolefin prepared from two monomers of ethylene and propylene refers to polyolefin prepared from two polymerized monomers of ethylene and propylene.
In one embodiment, the polyolefin prepared from two monomers, ethylene and propylene, is an ethylene-propylene random copolymer and/or an ethylene-propylene block copolymer.
Preferably, the polyolefin prepared from two monomers, ethylene and propylene, is an ethylene-propylene random copolymer.
In the invention, the ethylene-propylene random copolymer is a random copolymer prepared by copolymerizing propylene mainly and a small amount of ethylene.
In one embodiment, the ethylene-propylene random copolymer has a heat distortion temperature of 80 to 110 ℃.
Preferably, the heat distortion temperature of the ethylene-propylene random copolymer is 90 to 100 ℃.
More preferably, the ethylene-propylene random copolymer has a heat distortion temperature of 95 ℃.
In the present invention, the heat distortion temperature of the ethylene-propylene random copolymer is measured according to the method of ASTM D648.
In the present invention, the Heat Deflection Temperature (HDT) indicates whether the plastic material can maintain a constant shape at a high temperature and under a pressure, and generally represents the short-term Heat resistance of the plastic material.
In one embodiment, the ethylene-propylene random copolymer has an ethylene content of 20 to 30 wt%.
In the present invention, when the ethylene content in the ethylene-propylene random copolymer is low, the transparency thereof is significantly improved. The stiffness and impact strength of the copolymer increase with increasing ethylene content. The ethylene-propylene random copolymer has a wide melting temperature range and good molding processability. The ethylene-propylene random copolymer has better transparency and impact property, and is more suitable for manufacturing transparent packaging films with strong requirements. Propylene and ethylene are mixed together and polymerized, propylene and ethylene segments are randomly distributed in the polymer main chain, ethylene plays a role of preventing the polymer from crystallizing, and when the content of ethylene is up to 20 wt%, the crystallization is difficult, and when the content of ethylene is up to 30 wt%, the polymer becomes completely amorphous. The random copolymer is characterized by low crystallinity, good transparency, increased impact strength, and reduced characteristic temperatures, such as melting temperature, glass transition temperature, brittle temperature, etc.
In one embodiment, the ethylene-propylene random copolymer is selected from one or more of eastman APAO E1003, samsung RJ580, and samsung RJ580Z, usa.
Preferably, the ethylene-propylene random copolymer has a trade name of sanxing RJ580 available from Dongzo plastics materials Ltd of Dongguan.
Polyolefins II prepared from at least one olefin monomer having not less than 4 carbon atoms
In the present invention, the polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms means that the polyolefin II has one or more olefin monomers having not less than 4 carbon atoms.
In one embodiment, the polyolefin II prepared from at least one olefin monomer having a carbon number of not less than 4 is selected from one or more of ethylene-1-hexene copolymer, ethylene-butene copolymer, ethylene-propylene-hexene copolymer, ethylene-octene copolymer.
Preferably, the polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer.
In one embodiment, the ethylene-butene copolymer and the ethylene-octene copolymer are present in a mass ratio of 1: (1.2-1.8).
Preferably, the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6.
ethylene-butene copolymer
In the present invention, the ethylene-butene copolymer contains a small amount of 1-butene and a copolymer thereof with ethylene.
In one embodiment, the ethylene-butene copolymer has a melt index of 0.9 to 1.2g/10 min.
Preferably, the ethylene-butene copolymer has a melt index of 1.1g/10min and is available under the trademark LG chemical POELC175 from Shanghai plastics materials, Inc., of Dongguan.
The melt index of the ethylene-butene copolymer of the present invention is measured at 190 ℃/2.16kg according to ASTM D1238.
Ethylene-octene copolymer
In the present invention, the ethylene-octene copolymer refers to a polymer of 1-octene and ethylene.
In one embodiment, the ethylene-octene copolymer has a density of 0.862 to 0.885g/cm3
Preferably, the ethylene-octene copolymer has a density of 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
The density of the ethylene-octene copolymer according to the invention is tested according to the method of ASTM D792.
In a second aspect of the invention, there is provided a PO substrate membrane comprising the above polyolefin composition.
In one embodiment, the PO substrate membrane is prepared by: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
The applicant has found unexpectedly in the course of research that polyethylene, polypropylene, ethyleneAn alkene-propylene random copolymer, an ethylene-butene copolymer and an ethylene-octene copolymer, wherein the polyethylene has a density of 0.941-0.96 g/cm3The heat distortion temperature of the ethylene-propylene random copolymer is 90-100 ℃, the melt index of the ethylene-butylene copolymer is 0.9-1.2 g/10min, and the PO substrate film prepared by mixing the ethylene-propylene random copolymer and the ethylene-butylene copolymer not only has better elongation, but also has the elongation rate close to 1 in the longitudinal direction and the transverse direction: 1, and the PO substrate film also has an antistatic effect, has not too high film toughness and is suitable for a viscosity-reducing protective film. The reason the applicant guesses may be due to the density of 0.941-0.96 g/cm3The stability of the PO substrate film and the mechanical property of the film are improved because no branch chain exists on the polyethylene molecular chain; the ethylene-propylene random copolymer has propylene and ethylene chain segments randomly distributed in the main chain, and the propylene and ethylene chain segments act together with the ethylene-butene copolymer and the ethylene-octene copolymer with the melt index of 0.9-1.2 g/10min, so that the flexibility of the polyethylene is reduced, the high insulativity of the polyethylene is not influenced, the PO base material film has an antistatic effect, the toughness of the film is not too high, and the PO base material film is suitable for a viscosity-reducing protective film; when the heat distortion temperature of the ethylene-propylene random copolymer is 95 ℃, the ethylene-propylene random copolymer has good compatibility with ethylene-butylene copolymer LG chemical POE LC175, and can effectively prevent uneven expansion when a PO substrate film is prepared by a casting method, so that the PO substrate film has better elongation and the elongation in the longitudinal direction and the transverse direction is close to 1: 1.
a third aspect of the invention provides a PO protective film comprising the above PO base material film.
In one embodiment, the PO protective film further comprises a glue layer.
The adhesive layer is not particularly limited in the present invention, and is a common adhesive layer in the art.
The invention also provides the application of the PO protective film, and the PO protective film is applied to the protection of chips, glass, LEDs, flexible circuit boards and the like in the processing process.
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Examples
Example 1
Example 1 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 2: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000081
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000082
The mass ratio of 2100 polypropylene is 1.5: 1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000083
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.2;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 2
Example 2 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 4: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 4: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000091
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000092
The mass ratio of 2100 polypropylene is 2.2:1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000093
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.8;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 3
Example 3 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000094
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000095
The mass ratio of 2100 polypropylene is 1.7: 1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000096
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 4
Example 4 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin having 2 to 3 carbon atoms is
Figure BDA0002573814830000101
2100 polypropylene, purchased from LG chemical of korea;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 5
Example 5 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms is named as petrochemical TR144 polyethylene and is purchased from southern United energy Co., Ltd in Guangdong;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 6
Example 6 provides a polyolefin composition comprising: polyolefin prepared from one olefin monomer with 2-3 carbon atoms, and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000121
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000122
The mass ratio of 2100 polypropylene is 1.7: 1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000123
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 7
Example 7 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000124
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000125
The mass ratio of 2100 polypropylene is 1.7: 1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000126
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared by at least one olefin monomer with the carbon number not less than 4 is an ethylene-octene copolymer; the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 8
Example 8 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000131
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000132
The mass ratio of 2100 polypropylene is 1.7: 1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000133
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared by at least one olefin monomer with the carbon number not less than 4 is an ethylene-butylene copolymer; the ethylene-butene copolymer had a melt index of 1.1g/10min and a designation of LG chemical POE LC175, purchased from Shanghao plastics materials, Inc., of Dongguan.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 9
Example 9 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms comprises metallocene M1850A polyethylene,
Figure BDA0002573814830000141
2100 polypropylene; the metallocene petrochemical M1850A polyethylene,
Figure BDA0002573814830000142
The mass ratio of 2100 polypropylene is 1.7: 1; the metallocene petrochemical M1850A polyethylene was purchased from southern union energy limited, china, guangdong; the above-mentioned
Figure BDA0002573814830000143
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 10
Example 10 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000144
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000151
The mass ratio of 2100 polypropylene is 1.7: 1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000152
2100 polypropyleneAlkenes were purchased from korean LG chemistry;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene block copolymer with the trademark of Korean Samsung Dall BF308, purchased from Shanghai Kaiyi plastics Co., Ltd;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6;
the ethylene-butene copolymer has a melt index of 1.1g/10min and a trademark of LG chemical POE LC175, and is purchased from Shanghao plastic raw material Co., Ltd, Dongguan;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Example 11
Example 11 provides a polyolefin composition comprising: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared from the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is 3.5: 1;
the polyolefin I prepared from the olefin monomer with the carbon atom number not more than 3 comprises polyolefin prepared from one olefin monomer with the carbon atom number of 2-3 and polyolefin prepared from two monomers of ethylene and propylene; the polyolefin prepared from one olefin monomer with 2-3 carbon atoms and the polyolefin prepared from two monomers of ethylene and propylene have a mass ratio of 3: 1;
the polyolefin with 2-3 carbon atoms comprises a metallocene TR144 polyethylene,
Figure BDA0002573814830000153
2100 polypropylene; the rare earth petrochemical TR144 polyethylene,
Figure BDA0002573814830000154
The mass ratio of 2100 polypropylene is 1.7: 1; the Moscomithromeni TR144 polyethylene was purchased from Hainan United energy, Inc. in Guangdong; the above-mentioned
Figure BDA0002573814830000155
2100 polypropylene was purchased from south korea LG chemical;
the polyolefin prepared from two monomers of ethylene and propylene is an ethylene-propylene random copolymer having a trade name of sanxing RJ580 in Korea, which is purchased from Dongsho plastics materials Co., Ltd, Dongguan;
the polyolefin II prepared from at least one olefin monomer with the carbon number not less than 4 is a mixture of an ethylene-butene copolymer and an ethylene-octene copolymer; the mass ratio of the ethylene-butene copolymer to the ethylene-octene copolymer is 1: 1.6;
the ethylene-butene copolymer has a melt index of 5g/10min and a trademark of Dow 7447, and is purchased from New materials GmbH of hundred million Jia sources, Suzhou;
the density of the ethylene-octene copolymer is 0.863g/cm3And sold under the trademark of Solumer 8613L, purchased from shanghai furuan plasticization technology ltd.
A PO substrate film comprising the polyolefin composition; the preparation method of the PO substrate membrane comprises the following steps: the raw materials of the polyolefin composition are mixed, and a PO base material film is prepared by adopting a tape casting method.
Performance testing
1. Ductility: the PO substrate films described in examples 1 to 11 were measured for longitudinal elongation and transverse elongation according to astm d638-99 standard, and the aspect ratio (longitudinal elongation/transverse elongation) was calculated, and the test results are shown in table 1.
Table 1 examples 1-11 performance test results
Figure BDA0002573814830000161
The commercially available PO film was a large PO film (thickness of 0.08mm) purchased from Tianjin Dahua plastication Co., Ltd.
The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims (10)

1. A polyolefin composition, characterized in that it comprises: a polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms and a polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms; the mass ratio of the polyolefin I prepared by the olefin monomer with the carbon number not more than 3 to the polyolefin II prepared by at least one olefin monomer with the carbon number not less than 4 is (2-5): 1.
2. the polyolefin composition according to claim 1, wherein the polyolefin I prepared from an olefin monomer having not more than 3 carbon atoms comprises a polyolefin prepared from one olefin monomer having 2 to 3 carbon atoms, and a polyolefin prepared from two monomers of ethylene and propylene.
3. Polyolefin composition according to claim 2, wherein the polyolefin prepared from two monomers, ethylene and propylene, is an ethylene-propylene random copolymer and/or an ethylene-propylene block copolymer.
4. The polyolefin composition according to claim 3, wherein the ethylene-propylene random copolymer has a heat distortion temperature of 80 to 110 ℃.
5. The polyolefin composition of claim 2, wherein the polyolefin produced from an olefin monomer having 2 to 3 carbon atoms comprises a density of 0.91 to 0.96g/cm3The polyethylene and the polypropylene with the flexural modulus of 1770-5490 MPa.
6. The polyolefin composition according to any of claims 1 to 5, wherein the polyolefin II prepared from at least one olefin monomer having not less than 4 carbon atoms is selected from one or more of ethylene-1-hexene copolymer, ethylene-butene copolymer, ethylene-propylene-hexene copolymer and ethylene-octene copolymer.
7. The polyolefin composition according to claim 6, wherein the ethylene-butene copolymer has a melt index of 0.9 to 1.2g/10 min.
8. A PO substrate membrane comprising the polyolefin composition according to any one of claims 1 to 7.
9. A PO protection membrane comprising the PO substrate membrane of claim 8.
10. The PO protective film of claim 9 for use in chip, glass, LED, flexible circuit board, and the like processes.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113912941A (en) * 2021-10-26 2022-01-11 金发科技股份有限公司 Polypropylene composite material and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113912941A (en) * 2021-10-26 2022-01-11 金发科技股份有限公司 Polypropylene composite material and preparation method and application thereof

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