CN112831286B - Hot-pressing film and application - Google Patents
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- CN112831286B CN112831286B CN202110111727.7A CN202110111727A CN112831286B CN 112831286 B CN112831286 B CN 112831286B CN 202110111727 A CN202110111727 A CN 202110111727A CN 112831286 B CN112831286 B CN 112831286B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K3/2279—Oxides; Hydroxides of metals of antimony
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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Abstract
The invention relates to a hot-pressing film, which comprises a PET composite material layer, an adhesive layer and a release layer, wherein the PET composite material layer comprises the following raw materials in parts by weight: 10-50 parts of hollow glass beads; 20-50 parts of antimony trioxide; 150-250 parts of PET; 3-5 parts of an antioxidant; 0.8-1.6 parts of a silane coupling agent; 0.8-1.6 parts of stearic acid; 0.8-1.6 parts of tetrahydroxy sodium aluminate solution. The membrane of the invention has good structural stability and good high temperature resistance.
Description
Technical Field
The invention belongs to the technical field of hot pressing films, and particularly relates to a hot pressing film and application thereof.
Background
In recent years, the electric vehicle industry has started to burn with the national and regional governments successively developing a series of relevant policies to support and promote the development of electric vehicles, and with the shift in the ideas of electric vehicles. However, as the subsidy amount decreases year by year, the vehicle standards meeting the subsidies gradually increase, governments have higher and higher energy density requirements on power batteries, and the ternary battery gradually occupies higher and higher market share due to the advantage of the energy density of the ternary battery.
Compared with a lithium iron phosphate battery with low energy density, the ternary battery has great advantages in energy density, but is far less safe than the lithium iron phosphate battery in safety. The chemical components of the ternary battery have high activity, thermal runaway can occur at high temperature or under overcharge, and further the risk of serious harm to personal safety such as fire, explosion and the like can occur in the battery pack.
Disclosure of Invention
The hot pressing film provided by the invention has the advantages of good structural stability, good temperature impact resistance and good heat insulation and high temperature resistance.
The hot-pressing film comprises a PET composite material layer, an adhesive layer and a release layer, wherein the PET composite material layer comprises the following raw materials in parts by weight:
10-50 parts of hollow glass beads;
20-50 parts of antimony trioxide;
150-250 parts of PET;
3-5 parts of an antioxidant;
0.8-1.6 parts of a silane coupling agent;
0.8-1.6 parts of stearic acid;
0.8-1.6 parts of tetrahydroxy sodium aluminate solution. The preferred concentration of the sodium tetrahydroxyaluminate solution is 5-8 wt.%.
The invention relates to an improvement of a hot-pressing film, wherein the thickness of a PET composite material layer is 50-100 microns.
The invention relates to an improvement of a hot-pressing film, wherein the PET composite material layer also comprises metal microfiber accounting for 0.3-0.5% of the total mass of the PET composite material layer.
In an improvement of the hot-pressed film of the present invention, the metal microfibers have an average length of 5 to 8 micrometers.
The invention relates to an improvement of a hot-pressed film, wherein the length-diameter ratio of metal microfibers is (5-8): 1.
the invention relates to an improvement of a hot-pressing film, wherein metal micro-fibers are copper fibers or aluminum fibers or steel fibers.
The invention relates to an improvement of a hot-pressing film, wherein the average grain diameter of hollow glass beads is 0.8-1.2 microns.
The invention relates to an improvement of a hot-pressing film, wherein the hollow glass beads have the particle size of less than 1 mu m accounting for more than 80 percent.
In the scheme of the invention, in order to improve the filling among the components and realize the distribution of the flame retardant component/non-combustible component/non-combustion-supporting component in the material in the PET, the adopted silane coupling agent further enhances the binding property among the materials and increases the stability and the processing formability of the product structure. The proper amount of tetrahydroxy sodium aluminate component fills the remaining gap between the structures, especially the gap between the glass micro-bead and other components or the contact surface, thereby playing the role of supplementary reinforcement, after drying, in the hot pressing process, the tetrahydroxy sodium aluminate forms a thin layer structure in the material, thereby further playing the role of isolating oxidants such as oxygen, and the tetrahydroxy sodium aluminate can be decomposed preferentially when firing, thereby further forming an isolation layer, thereby forming multilayer protection, a multilayer fire-resistant structure with antimony trioxide, an inner layer of tetrahydroxy sodium aluminate and the like is formed from the outside to the inside, meanwhile, the tetrahydroxy sodium aluminate is decomposed at high temperature and forms a shell layer, which is also beneficial to flame retardance, and simultaneously, the high dispersion and high heat dissipation heat conduction characteristics of metal micro-fibers are matched, thereby greatly reducing the possibility that the material reaches the fire point.
Drawings
FIG. 1 is a table of the performance test of samples in example 1 of the present application.
Detailed Description
The present invention will be described in detail below with reference to various embodiments. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
To illustrate this solution, 100g is used per part by weight in the following examples. Without limitation, other standards such as grams, kilograms, and the like may be used per part by weight within the scope of the present application.
Example 1
Hot pressing membrane in this embodiment, including PET combined material layer, gluing layer, release layer, PET combined material layer's raw materials composition includes, with parts by weight: 10 parts of hollow glass beads; 40 parts of antimony trioxide; 150 parts of PET; 4 parts of a mixture of the antioxidant 1010 and the antioxidant 300, wherein the mass ratio of the antioxidant 1010 to the antioxidant 300 is 3: 1; 1.3 parts of a silane coupling agent; 1.4 parts of stearic acid; 1.6 parts of 7 weight percent sodium tetrahydroxy aluminate solution. The thickness of the PET composite layer was 50 microns. The average grain diameter of the hollow glass beads is 0.8-1.2 microns, and the grain diameter of the hollow glass beads is less than 1 micron and accounts for more than 80 percent. And metal microfibers accounting for 0.45 percent of the total mass of the PET composite material layer are added, and the average length of the metal microfibers is 6.5 micrometers. The length-diameter ratio of the metal microfiber is 5: 1.
and (3) carrying out aging test and oxygen index test, wherein the aging test is carried out for 120 days and 240 days in an environment of simulating strong illumination, 45 ℃ and 80% air humidity by a 1000W high-pressure sodium lamp after the sample is attached to a smooth aluminum plate. The oxygen index test is a test in which a sample is made of the PET composite alone.
Figure 1 shows the performance test of the product of this example.
Example 2
Hot pressing membrane in this embodiment, including PET combined material layer, gluing layer, release layer, PET combined material layer's raw materials composition includes, with parts by weight: 20 parts of hollow glass beads; 30 parts of antimony trioxide; 250 parts of PET; 10103 parts of an antioxidant; 1.2 parts of a silane coupling agent; 1.2 parts of stearic acid; 0.8 part of 5 weight percent sodium tetrahydroxyaluminate solution. The thickness of the PET composite layer was 100 microns. The average grain diameter of the hollow glass beads is 0.8-1.2 microns, and the grain diameter of the hollow glass beads is less than 1 micron and accounts for more than 80 percent. And metal microfibers accounting for 0.35 percent of the total mass of the PET composite material layer are added, and the average length of the metal microfibers is 7 micrometers. The length-diameter ratio of the metal microfiber is 6: 1.
and (3) carrying out aging test and oxygen index test, wherein the aging test is carried out for 120 days and 240 days in an environment of simulating strong illumination, 45 ℃ and 80% air humidity by a 1000W high-pressure sodium lamp after the sample is attached to a smooth aluminum plate. The oxygen index test is a test in which a sample is made of the PET composite alone.
Example 3
Hot pressing membrane in this embodiment, including PET combined material layer, gluing layer, release layer, PET combined material layer's raw materials composition includes, with parts by weight: 30 parts of hollow glass beads; 50 parts of antimony trioxide; 200 parts of PET; 5 parts of antioxidant V76-P; 1.4 parts of a silane coupling agent; 1.6 parts of stearic acid; 1.4 parts of 8 wt% sodium tetrahydroxy aluminate solution. The thickness of the PET composite layer was 60 microns. The average grain diameter of the hollow glass beads is 0.8-1.2 microns, and the grain diameter of the hollow glass beads is less than 1 micron and accounts for more than 80 percent. And metal microfibers accounting for 0.5 percent of the total mass of the PET composite material layer are added, and the average length of the metal microfibers is 6 micrometers. The length-diameter ratio of the metal microfiber is 7: 1.
and (3) carrying out aging test and oxygen index test, wherein the aging test is carried out for 120 days and 240 days in an environment of simulating strong illumination, 45 ℃ and 80% air humidity by a 1000W high-pressure sodium lamp after the sample is attached to a smooth aluminum plate. The oxygen index test is a test in which a sample is made of the PET composite alone.
Example 4
Hot pressing membrane in this embodiment, including PET combined material layer, gluing layer, release layer, PET combined material layer's raw materials composition includes, with parts by weight: 40 parts of hollow glass beads; 20 parts of antimony trioxide; 180 parts of PET; 3003.5 parts of an antioxidant; 1.6 parts of a silane coupling agent; 1 part of stearic acid; 1.2 parts of 6 weight percent sodium tetrahydroxy aluminate solution. The thickness of the PET composite layer was 70 microns. The average grain diameter of the hollow glass beads is 0.8-1.2 microns, and the grain diameter of the hollow glass beads is less than 1 micron and accounts for more than 80 percent. And metal microfibers accounting for 0.4 percent of the total mass of the PET composite material layer are added, and the average length of the metal microfibers is 8 micrometers. The length-diameter ratio of the metal microfiber is 8: 1.
and (3) carrying out aging test and oxygen index test, wherein the aging test is carried out for 120 days and 240 days in an environment of simulating strong illumination, 45 ℃ and 80% air humidity by a 1000W high-pressure sodium lamp after the sample is attached to a smooth aluminum plate. The oxygen index test is a test in which a sample is made of the PET composite alone.
Example 5
Hot pressing film in this embodiment includes PET combined material layer, gluing layer, release layer, and PET combined material layer's raw materials composition includes, by weight: 50 parts of hollow glass beads; 25 parts of antimony trioxide; 220 parts of PET; 10104.5 parts of an antioxidant; 0.8 part of silane coupling agent; 0.8 part of stearic acid; 1.4 parts of 8 wt% sodium tetrahydroxy aluminate solution. The thickness of the PET composite layer was 80 microns. The average grain diameter of the hollow glass beads is 0.8-1.2 microns, and the grain diameter of the hollow glass beads is less than 1 micron and accounts for more than 80 percent. And metal microfibers accounting for 0.3 percent of the total mass of the PET composite material layer are added, and the average length of the metal microfibers is 5 micrometers. The length-diameter ratio of the metal microfiber is 6.5: 1.
and (3) carrying out aging test and oxygen index test, wherein the aging test is carried out for 120 days and 240 days in an environment of simulating strong illumination, 45 ℃ and 80% air humidity by a 1000W high-pressure sodium lamp after the sample is attached to a smooth aluminum plate. The oxygen index test is a test in which a sample is made of the PET composite alone.
Including but not limited to the embodiments described above, the samples of the present application all meet the performance shown in fig. 1, so the sample performance is acceptable.
Example 6
Hot pressing membrane in this embodiment, including PET combined material layer, gluing layer, release layer, PET combined material layer's raw materials composition includes, with parts by weight: 10 parts of hollow glass beads; 40 parts of antimony trioxide; 150 parts of PET; 4 parts of a mixture of the antioxidant 1010 and the antioxidant 300, wherein the mass ratio of the antioxidant 1010 to the antioxidant 300 is 3: 1; 1.3 parts of a silane coupling agent; 1.4 parts of stearic acid; 1.6 parts of 7 wt% sodium tetrahydroxyaluminate solution. The thickness of the PET composite layer was 50 microns. The average grain diameter of the hollow glass beads is 0.8-1.2 microns, and the grain diameter of the hollow glass beads is less than 1 micron and accounts for more than 80 percent.
And (3) carrying out aging test and oxygen index test, wherein the aging test is carried out for 120 days and 240 days in an environment of simulating strong illumination, 45 ℃ and 80% air humidity by a 1000W high-pressure sodium lamp after the sample is attached to a smooth aluminum plate. The oxygen index test is a test in which a sample is made of the PET composite alone.
Comparative example 1
The only difference from example 1 is: no sodium tetrahydroxyaluminate solution was added. The samples were tested under identical conditions.
Comparative example 2
The only difference from example 1 is: 5 parts of 10 weight percent tetrahydroxy sodium aluminate solution. The samples were tested under identical conditions.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. Hot pressing membrane, including PET combined material layer, gluing layer, release layer, its characterized in that, PET combined material layer's raw materials composition includes, by weight:
10-50 parts of hollow glass beads;
20-50 parts of antimony trioxide;
150-250 parts of PET;
3-5 parts of an antioxidant;
0.8-1.6 parts of a silane coupling agent;
0.8-1.6 parts of stearic acid;
0.8-1.6 parts of 5-8 wt% tetrahydroxy sodium aluminate solution;
the thickness of the PET composite material layer is 50-100 micrometers;
metal microfiber accounting for 0.3-0.5% of the total mass of the PET composite material layer.
2. The hot-pressed film of claim 1, wherein the metal microfibers have an average length of 5 to 8 micrometers.
3. The hot-pressed film according to claim 2, wherein the aspect ratio of the metal microfibers is (5-8): 1.
4. the hot-pressing film according to any one of claims 1 to 3, wherein the metal microfibers are copper fibers or aluminum fibers or steel fibers.
5. A hot-pressed film according to claim 4, wherein the hollow glass beads have an average particle size of 0.8 to 1.2 μm.
6. A hot-pressed film according to claim 5, wherein 80% or more of the hollow glass beads having a particle size of less than 1 μm are contained.
7. Use of a hot-pressed film according to any of claims 1 to 6 in a new energy battery pack.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1535290A (en) * | 2001-02-21 | 2004-10-06 | 美国杜邦泰津胶片合伙人有限公司 | Flame retardant polyester film |
| CN101235190A (en) * | 2008-03-03 | 2008-08-06 | 东华大学 | Polyester-base nano composite material and its preparation method and application |
| CN102089401A (en) * | 2008-04-10 | 2011-06-08 | 哈利伯顿能源服务公司 | Micro-crosslinked gels and associated methods |
| CN106832823A (en) * | 2017-03-20 | 2017-06-13 | 江苏裕兴薄膜科技股份有限公司 | A kind of high temperature resistant PET polyester films and preparation method thereof |
| CN107227004A (en) * | 2017-07-10 | 2017-10-03 | 芜湖扬展新材料科技服务有限公司 | A kind of preparation method of polyethylene terephthalate composite |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20152050A1 (en) * | 2015-07-10 | 2017-01-10 | Bigaran S R L | Refractory composite material, its preparation method, its use for the preparation of manufactured articles, as well as articles thus constituted and their use |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1535290A (en) * | 2001-02-21 | 2004-10-06 | 美国杜邦泰津胶片合伙人有限公司 | Flame retardant polyester film |
| CN101235190A (en) * | 2008-03-03 | 2008-08-06 | 东华大学 | Polyester-base nano composite material and its preparation method and application |
| CN102089401A (en) * | 2008-04-10 | 2011-06-08 | 哈利伯顿能源服务公司 | Micro-crosslinked gels and associated methods |
| CN106832823A (en) * | 2017-03-20 | 2017-06-13 | 江苏裕兴薄膜科技股份有限公司 | A kind of high temperature resistant PET polyester films and preparation method thereof |
| CN107227004A (en) * | 2017-07-10 | 2017-10-03 | 芜湖扬展新材料科技服务有限公司 | A kind of preparation method of polyethylene terephthalate composite |
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Effective date of registration: 20211129 Address after: 399 Minghu Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: Jinbaoli (Jiangsu) New Energy Technology Co.,Ltd. Address before: Room 2309-a016, 23 / F, edia building, 99 nantiancheng Road, high speed rail new town, Xiangcheng District, Suzhou City, Jiangsu Province 215000 Applicant before: Suzhou baoyouji New Material Technology Co.,Ltd. |
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