CN111993730A - Research and development of 15 g light-stripping anti-yellowing isolation film - Google Patents

Research and development of 15 g light-stripping anti-yellowing isolation film Download PDF

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Publication number
CN111993730A
CN111993730A CN202010886546.7A CN202010886546A CN111993730A CN 111993730 A CN111993730 A CN 111993730A CN 202010886546 A CN202010886546 A CN 202010886546A CN 111993730 A CN111993730 A CN 111993730A
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China
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layer
base material
material layer
substrate layer
development
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CN202010886546.7A
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Chinese (zh)
Inventor
于亦波
庞艳
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Zibo Jin Hao Plastic New Material Ltd By Share Ltd
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Zibo Jin Hao Plastic New Material Ltd By Share Ltd
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Priority to CN202010886546.7A priority Critical patent/CN111993730A/en
Publication of CN111993730A publication Critical patent/CN111993730A/en
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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
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable

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Abstract

The invention relates to the technical field of research and development of new plastic materials, and discloses research and development of a 15-gram light-stripping anti-yellowing isolating membrane, which comprises a first PP base material layer, a second PP base material layer, a third PP base material layer, an aluminum-plated layer and a silicon resin layer, wherein the second PP base material layer is fixedly mounted on the top of the first PP base material layer, the third PP base material layer is fixedly mounted on the top of the second PP base material layer, the aluminum-plated layer is fixedly mounted on the top of the third PP base material layer, the silicon resin layer is fixedly mounted on the top of the aluminum-plated layer, the first PP base material layer, the second PP base material layer and the third PP base material layer are respectively prepared by mixing homo-polypropylene homo-PP with random co-polypropylene rapp, color master batch and nano CaCO3 filler, the thickness of the second PP base material layer is larger than that of the first PP base material layer, and the. The research and development of the 15 g light-stripping anti-yellowing isolating membrane improves the product quality, saves energy and reduces consumption.

Description

Research and development of 15 g light-stripping anti-yellowing isolation film
Technical Field
The invention relates to the technical field of new plastic material research and development, and particularly relates to research and development of a 15-gram light-stripping anti-yellowing isolating film.
Background
The isolating membrane is a microporous and porous film, is mainly made of PP and PE, is arranged between a positive electrode and a negative electrode in the battery core, is mainly used for isolating the positive electrode plate and the negative electrode plate, prevents the short circuit of the negative electrode and the positive electrode in the battery, can allow ions to pass through, and has the function of keeping electrolyte.
At present, most of HDPE isolating films in the market are 35-40 g, a three-layer coextrusion up-blowing process is adopted, the difference of transverse and longitudinal tension caused by blowing expansion is small, no matter the coating condition, the HDPE isolating films can be torn off during coil construction, the thin films cannot be torn, the yellowing of the films after the coils are placed for a short time is severe, 3 thousands of films can be produced per ton at present, the cost is high, and therefore, the research and development of 15 g of light-stripping yellowing-resistant isolating films are provided to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the research and development of a 15-gram light-stripping yellowing-resistant isolating film, has the advantages of energy conservation, consumption reduction and the like, and solves the problems that most HDPE isolating films in the current market are 35-40 grams, a three-layer co-extrusion up-blowing process is adopted, the transverse and longitudinal tension difference caused by blowing expansion is small, a coiled material can be torn off during construction no matter the coating condition, the thin film cannot be torn, the film is severely yellowed after the coiled material is placed for a short time, and 3 thousands of flat films can be produced per ton at present, and the cost is high.
(II) technical scheme
In order to achieve the purpose of energy conservation and consumption reduction, the invention provides the following technical scheme: the utility model provides a research and development of 15 grams light-stripping anti-yellowing barrier film, includes first PP substrate layer, second PP substrate layer, third PP substrate layer, aluminizes layer and silicone layer, the top fixed mounting of first PP substrate layer has the second PP substrate layer, the top fixed mounting of second PP substrate layer has the third PP substrate layer, the top fixed mounting of third PP substrate layer has the aluminized layer, the top fixed mounting of aluminized layer has the silicone layer.
Preferably, the first PP substrate layer, the second PP substrate layer and the third PP substrate layer are all prepared by mixing homo-polypropylene homo-PP with random copolymer polypropylene rapp, color master batch and nano CaCO3 filler.
Preferably, the thickness of the second PP substrate layer is greater than that of the first PP substrate layer, and the thickness of the first PP substrate layer is greater than that of the third PP substrate layer.
Preferably, the aluminum plating layer is vacuum aluminum plating, and the thickness of the aluminum plating layer is 400.
Preferably, the sum of the thicknesses of the first PP base material layer, the second PP base material layer and the third PP base material layer is 25-40 um.
Preferably, the thickness of the third PP base material layer is greater than that of the aluminum-plated layer, and the thickness of the aluminum-plated layer is less than that of the silicone resin layer.
(III) advantageous effects
Compared with the prior art, the invention provides research and development of a 15-gram light-stripping anti-yellowing isolating film, and has the following beneficial effects:
according to the research and development of the 15-gram light-stripping anti-yellowing isolation film, a first PP base material layer, a second PP base material layer and a third PP base material layer are arranged, the first PP base material layer, the second PP base material layer and the third PP base material layer are all blended by homopolypropylene homo-PP and random copolymerization polypropylene rapp, color master and nano CaCO3 fillers according to a certain proportion, the three layers are different in proportion to form an anti-sticking film base material, PP per se has better barrier property on oxygen than Pe, vacuum aluminum plating is carried out on the top of the third PP base material layer, the thickness is 400 angstroms, a compact coating is formed, the oxygen transmission rate is reduced by 70-90% compared with that before aluminum plating is carried out, the aluminum plating layer increases the polarity of the surface, silicon resin adhesion is easy, and a thermocuring silicon resin layer is coated on the top of the aluminum plating layer to form an anti-sticking; the aluminized layer can block the PP anti-sticking film, can block outer oxygen from penetrating through the film to reach the surface of the self-sticking adhesive, so that the self-sticking adhesive is aged and reduced or loses viscosity, and can also prevent inner oil from permeating to the surface of the film to change the color of the film.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1 first PP substrate layer, 2 second PP substrate layers, 3 third PP substrate layers, 4 aluminized layers, 5 silicone layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the research and development of a 15 g light-stripping anti-yellowing isolation film comprises a first PP substrate layer 1, a second PP substrate layer 2, a third PP substrate layer 3, an aluminum-plated layer 4 and a silicone resin layer 5, wherein the second PP substrate layer 2 is fixedly mounted on the top of the first PP substrate layer 1, the third PP substrate layer 3 is fixedly mounted on the top of the second PP substrate layer 2, the sum of the thicknesses of the first PP substrate layer 1, the second PP substrate layer 2 and the third PP substrate layer 3 is 25-40 um, each of the first PP substrate layer 1, the second PP substrate layer 2 and the third PP substrate layer 3 is formed by mixing homopolypropylene homo PP with random copolymer polypropylene rapp, color master and nano CaCO3 filler, the thickness of the second PP substrate layer 2 is greater than that of the first PP substrate layer 1, the thickness of the first PP substrate layer 1 is greater than that of the third PP substrate layer 3, the aluminum-plated layer 4 is fixedly mounted on the top of the third PP substrate layer 3, the aluminized layer 4 is vacuum aluminized, the thickness of the aluminized layer is 400 angstroms, a silicone resin layer 5 is fixedly mounted on the top of the aluminized layer 4, the thickness of a third PP substrate layer 3 is larger than that of the aluminized layer 4, the thickness of the aluminized layer 4 is smaller than that of the silicone resin layer 5, the first PP substrate layer 1, the second PP substrate layer 2 and the third PP substrate layer 3 are arranged, the first PP substrate layer 1, the second PP substrate layer 2 and the third PP substrate layer 3 are respectively blended by homopolypropylene homo-polypropylene rapp and random copolymer polypropylene rapp, color master and nano CaCO3 filler according to a certain proportion, the three layers are different in proportion to form an anti-sticking film substrate, the PP per se has good barrier property to oxygen compared with Pe, the aluminized layer is vacuum aluminized on the top of the third PP 3, the thickness is 400 angstroms to form a compact coating, the oxygen permeability is reduced by 70-90% compared with that before aluminizing, the aluminized layer 4 increases the polarity of the, the silicon resin is easy to be adhered, and the top of the aluminum coating 4 is coated with a thermosetting silicon resin layer 5 to form an anti-sticking layer; the aluminized layer 4 can block the PP anti-sticking film, can block the outer oxygen from permeating the film to reach the surface of the self-sticking adhesive, so that the self-sticking adhesive is aged and reduced or loses viscosity, and can also prevent the inner oil from permeating the film surface outwards to cause the film to change color, the structure improves the product quality, saves energy and reduces consumption, the isolating film adopts a special formula which takes HDPE as a main material, and a base material film is produced by an A-B-A type film blowing machine; then, coating with 'import D oil' to achieve light stripping, wherein the stripping force is less than or equal to 15 g, the residual adhesion rate is high, and the SAS is more than or equal to 85%; the film process formula adopts a functional master batch with yellowing resistance and high temperature resistance; the surface can be made into a pattern appointed by a customer according to the customer requirement, so that the anti-counterfeiting requirement of the customer is met; and finally, adopting a special film blowing machine die head.
In summary, in the research and development of the 15 g light-peeling anti-yellowing isolating film, by arranging the first PP substrate layer 1, the second PP substrate layer 2 and the third PP substrate layer 3, the first PP substrate layer 1, the second PP substrate layer 2 and the third PP substrate layer 3 are respectively blended by homopolypropylene homo PP and random copolymer polypropylene rapp, color masterbatch and nano CaCO3 filler according to a certain proportion, the three layers are different in proportion to form an anti-sticking film substrate, the PP itself has better barrier property to oxygen than Pe, vacuum aluminum plating is performed on the top of the third PP substrate layer 3, the thickness is 400 a (angstroms) to form a compact coating, the oxygen transmission rate is reduced by 70-90% than before aluminum plating is performed, the aluminum-plated layer 4 increases the polarity of the surface, the adhesion of silicon resin is easy, and the top of the aluminum-plated layer 4 is coated with the thermally cured silicon resin layer 5 to form the anti-sticking layer; the aluminized layer 4 can block the PP anti-sticking film, and can block the outer oxygen from penetrating through the film to reach the surface of the self-sticking film, so that the self-sticking film is aged and reduced or loses viscosity, and can also prevent the inner oil from permeating to the surface of the film to cause color change of the film.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1.15 grams light research and development of peeling off resistant yellow stain barrier film, including first PP substrate layer (1), second PP substrate layer (2), third PP substrate layer (3), aluminize layer (4) and silicone layer (5), its characterized in that: the top fixed mounting of first PP substrate layer (1) has second PP substrate layer (2), the top fixed mounting of second PP substrate layer (2) has third PP substrate layer (3), the top fixed mounting of third PP substrate layer (3) has aluminized layer (4), the top fixed mounting of aluminized layer (4) has silicone resin layer (5).
2. Development of a 15 gram light-lift-off yellowing-resistant release film according to claim 1, characterized in that: the first PP base material layer (1), the second PP base material layer (2) and the third PP base material layer (3) are all obtained by mixing homopolypropylene homo-PP with random copolymerization polypropylene rapP, color master and nano CaCO3 filler.
3. Development of a 15 gram light-lift-off yellowing-resistant release film according to claim 1, characterized in that: the thickness of the second PP base material layer (2) is larger than that of the first PP base material layer (1), and the thickness of the first PP base material layer (1) is larger than that of the third PP base material layer (3).
4. Development of a 15 gram light-lift-off yellowing-resistant release film according to claim 1, characterized in that: the aluminum plating layer (4) is vacuum aluminum plating, and the thickness of the aluminum plating layer is 400 angstrom.
5. Development of a 15 gram light-lift-off yellowing-resistant release film according to claim 1, characterized in that: the thickness sum of the first PP substrate layer (1), the second PP substrate layer (2) and the third PP substrate layer (3) is between 25-40 um.
6. Development of a 15 gram light-lift-off yellowing-resistant release film according to claim 1, characterized in that: the thickness of the third PP base material layer (3) is larger than that of the aluminum coating layer (4), and the thickness of the aluminum coating layer (4) is smaller than that of the silicon resin layer (5).
CN202010886546.7A 2020-08-28 2020-08-28 Research and development of 15 g light-stripping anti-yellowing isolation film Pending CN111993730A (en)

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CN202010886546.7A CN111993730A (en) 2020-08-28 2020-08-28 Research and development of 15 g light-stripping anti-yellowing isolation film

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CN202010886546.7A CN111993730A (en) 2020-08-28 2020-08-28 Research and development of 15 g light-stripping anti-yellowing isolation film

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774289A (en) * 2009-12-31 2010-07-14 广东威孚包装材料有限公司 Casting compound type CPP aluminum-base plated film
CN201801965U (en) * 2010-06-24 2011-04-20 唐山德生防水材料有限公司 Metal-coated release liner for self-adhesive waterproof roll material
CN102350846A (en) * 2011-07-12 2012-02-15 苏州斯迪克电子胶粘材料有限公司 Preparation method of novel cloudy-surface release paper
CN103203933A (en) * 2013-03-23 2013-07-17 湖北慧狮塑业股份有限公司 Low-temperature-resistant impact-resistant CPP (cast polypropylene) cooking-resistant film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774289A (en) * 2009-12-31 2010-07-14 广东威孚包装材料有限公司 Casting compound type CPP aluminum-base plated film
CN201801965U (en) * 2010-06-24 2011-04-20 唐山德生防水材料有限公司 Metal-coated release liner for self-adhesive waterproof roll material
CN102350846A (en) * 2011-07-12 2012-02-15 苏州斯迪克电子胶粘材料有限公司 Preparation method of novel cloudy-surface release paper
CN103203933A (en) * 2013-03-23 2013-07-17 湖北慧狮塑业股份有限公司 Low-temperature-resistant impact-resistant CPP (cast polypropylene) cooking-resistant film

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