CN113512288A - High-temperature-resistant vacuum bag film and preparation method and application thereof - Google Patents
High-temperature-resistant vacuum bag film and preparation method and application thereof Download PDFInfo
- Publication number
- CN113512288A CN113512288A CN202110468146.9A CN202110468146A CN113512288A CN 113512288 A CN113512288 A CN 113512288A CN 202110468146 A CN202110468146 A CN 202110468146A CN 113512288 A CN113512288 A CN 113512288A
- Authority
- CN
- China
- Prior art keywords
- vacuum bag
- temperature
- resistant vacuum
- bag film
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000004677 Nylon Substances 0.000 claims abstract description 27
- 229920001778 nylon Polymers 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 239000000806 elastomer Substances 0.000 claims abstract description 22
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims description 43
- 238000010096 film blowing Methods 0.000 claims description 25
- 239000002356 single layer Substances 0.000 claims description 25
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 13
- 229920000728 polyester Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004595 color masterbatch Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 19
- 238000007664 blowing Methods 0.000 description 7
- 150000001879 copper Chemical class 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- 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
- C08J2400/00—Characterised by the use of unspecified polymers
- C08J2400/14—Water soluble or water swellable polymers, e.g. aqueous gels
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a high-temperature-resistant vacuum bag film and a preparation method and application thereof, wherein the preparation raw materials of the high-temperature-resistant vacuum bag film comprise the following components in parts by weight: 10-70 parts of nylon; 20-80 parts of an elastomer; 1-3 parts of a heat stabilizer; 0.2-2 parts of color master batch; and 5-20 parts of an auxiliary agent. The highest service temperature of the high-temperature-resistant vacuum bag film can reach 200 ℃, the requirements of the aerospace field on strength and temperature resistance of the vacuum bag film are met, and the high-temperature-resistant vacuum bag film has good flexibility and sealing performance in a low-temperature and low-humidity environment.
Description
Technical Field
The invention belongs to the field of vacuum bag films, relates to a high-temperature-resistant vacuum bag film and a preparation method and application thereof, and particularly relates to a flexible high-temperature-resistant vacuum bag film and a preparation method and application thereof.
Background
With the increasing improvement of aerospace technology, more and more composite materials are used in the aerospace field, the demand of the high-temperature-resistant vacuum bag film is rapidly developed, and the high-temperature-resistant vacuum bag film has extremely high requirements on the quality. At present, the conventional high-temperature-resistant vacuum bag film is mostly made of nylon materials, and the pure nylon film is brittle and hard in a low-temperature and low-humidity environment, so that creases and creases are easily generated due to moving contact in the using process, the risk of air leakage is generated, and the operability is poor.
CN106009631A discloses a high-temperature resistant vacuum bag film, which is formed by blowing the following raw materials in parts by weight: 50-75 parts of homopolymerized nylon; 15-35 parts of copolymerized nylon; 2-10 parts of an elastomer; 1-4 parts of a heat stabilizer; 0.2-2 parts of color master batch. The maximum use temperature of the high-temperature-resistant vacuum bag film can reach 215 ℃, the requirements of the aerospace field on strength, modulus and temperature resistance of the vacuum bag film are met, and meanwhile the air tightness requirement of the vacuum bag is guaranteed. The flexibility of the high temperature resistant vacuum bag film of the present invention is yet to be further improved.
Accordingly, it is desirable in the art to develop a vacuum bagging film that is both high temperature resistant and flexible.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a high-temperature-resistant vacuum bag film and a preparation method and application thereof. The highest service temperature of the high-temperature-resistant vacuum bag film can reach 200 ℃, the requirements of the aerospace field on strength and temperature resistance of the vacuum bag film are met, and meanwhile, the high-temperature-resistant vacuum bag film has good flexibility and sealing performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a high-temperature resistant vacuum bag film, which comprises the following raw materials in parts by weight:
according to the invention, the elastomer is limited to 20-80 parts by weight, so that the mixture forms a sea-island structure, and the flexibility of the high-temperature-resistant vacuum bag film is improved. The tensile strength and tensile modulus of the film can be enhanced by adding the nylon; the addition of the elastomer can reduce the tensile strength and tensile modulus of the film; the addition of the auxiliary agent has certain influence on the reduction of the tensile strength and the tensile modulus of the film on the one hand, and can accelerate the film to absorb moisture in the environment on the other hand, so that the tensile modulus of the film is reduced along with the increase of the exposure time. Therefore, the weight parts of the components are controlled within the limited range, and the prepared high-temperature-resistant vacuum bag film can meet the strength requirement of the high-temperature-resistant vacuum bag film for aerospace, and the tensile modulus of the high-temperature-resistant vacuum bag film is reduced, so that the high-temperature-resistant vacuum bag film can meet the flexibility requirement.
In the present invention, the amount of nylon used in the raw material for preparing the high temperature resistant vacuum bag film may be 10 parts, 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, or the like.
In the present invention, the elastomer may be used in an amount of 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, 80 parts, or the like, in the raw material for preparing the high temperature resistant vacuum bag film.
In the invention, in the raw material for preparing the high-temperature resistant vacuum bag film, the amount of the heat stabilizer can be 1 part, 1.5 parts, 2 parts, 2.5 parts or 3 parts.
In the invention, in the raw material for preparing the high-temperature resistant vacuum bag film, the color master can be used in an amount of 0.2 part, 0.5 part, 1 part, 1.2 parts, 1.5 parts or 2 parts.
In the invention, the addition agent can be used in 5 parts, 8 parts, 10 parts, 12 parts, 15 parts, 18 parts or 20 parts in the raw material for preparing the high-temperature resistant vacuum bag film.
Preferably, the nylon comprises a co-polymerized nylon and/or a homo-polymerized nylon.
Preferably, the elastomer is a polyester-based elastomer.
Preferably, the heat stabilizer is a copper salt heat stabilizer.
Preferably, the auxiliary agent is high-moisture-absorption plastic particles.
As a preferred technical scheme of the invention, the film can rapidly absorb a part of water in the air in the use process by adding the high-moisture-absorption plastic particles, destroy hydrogen bonds among nylon molecules, and reduce the crosslinking degree among the nylon molecules, thereby improving the flexibility of the high-temperature-resistant vacuum bag film.
As a preferred technical scheme of the invention, the preparation raw materials of the high-temperature-resistant vacuum bag film comprise the following components in parts by weight:
in a second aspect, the present invention provides a method for preparing the high temperature resistant vacuum bag film of the first aspect, the method comprising the following steps:
the nylon, the elastomer, the heat stabilizer, the color master and the auxiliary agent with the formula ratio are filled into a hopper of a spiral plastic extruder, the materials are plasticized and melted, the melt-shaped raw materials are conveyed to a die head of a single-layer film blowing machine under the action of the internal pressure of the charging barrel of the spiral plastic extruder and the thrust of a screw rod of the spiral plastic extruder, and the extruded tubular blank is blown through the die head of the single-layer film blowing machine to obtain the high-temperature resistant vacuum bag film.
Preferably, the screw temperature of the screw plastic extruder is 225 to 250 ℃, such as 225 ℃, 230 ℃, 240 ℃ or 250 ℃, the rotation speed is 20 to 80rpm, such as 20rpm, 40rpm, 60rpm or 80rpm, and the extrusion processing pressure is 10 to 25MPa, such as 10MPa, 15MPa, 20MPa or 25 MPa.
Preferably, the temperature of the single layer film blowing machine is 235 to 255 ℃, such as 235 ℃, 240 ℃, 250 ℃ or 255 ℃, the blow-up ratio is 1.3 to 2.0, such as 1.3, 1.5, 1.8 or 2.0, the film thickness is 30 to 100 μm, such as 30 μm, 50 μm, 70 μm, 90 μm or 100 μm, the curling speed is 10 to 60m/min, such as 10m/min, 20m/min, 30m/min, 40m/min, 50m/min or 60 m/min.
The different proportions of elastomers in the formulations of the present invention result in variations in processing temperature and processing pressure. The increase of the elastomer proportion causes the reduction of the processing pressure, so that the temperature of a screw and the temperature of a film blowing machine need to be properly reduced, and the rotating speed is increased to improve the processing pressure. The most preferred example processing parameters are: the screw temperature was 240 ℃, the rotational speed was 55rpm, the processing pressure was 15MPa, the temperature of the single layer film blowing machine was 245 ℃, the blow-up ratio was 1.5, the film thickness was 50 μm, and the curling speed was 40 m/min.
In a third aspect, the present invention provides the use of a high temperature resistant vacuum bag film according to the first aspect in aerospace.
Compared with the prior art, the invention has at least the following beneficial effects:
according to the invention, the elastomer and the auxiliary agent are added, so that the prepared high-temperature-resistant vacuum bag film has better flexibility (tensile modulus: 130-. Meanwhile, the strength (tensile strength: 67-86MPa) and high temperature resistance of the high-temperature resistant vacuum bag film can meet the requirements of the aerospace field.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
In this embodiment, a high temperature resistant vacuum bag film is provided, and a preparation raw material of the high temperature resistant vacuum bag film comprises the following components in parts by weight:
the preparation method comprises the following steps:
and (2) filling the copolymerized nylon, the polyester elastomer, the copper salt heat stabilizer, the color master and the high-moisture-absorption plastic particles in the formula ratio into a hopper of a spiral plastic extruder, plasticizing and melting, conveying the melt raw material to a die head of a single-layer film blowing machine under the action of the internal pressure of a charging barrel of the spiral plastic extruder and the screw thrust of the spiral plastic extruder, and blowing the extruded tubular blank through the die head of the single-layer film blowing machine to obtain the high-temperature-resistant vacuum bag film.
Wherein the screw temperature of the screw plastic extruder is 240 ℃, the rotating speed is 55rpm, and the extrusion processing pressure is 15 MPa; the temperature of the single-layer film blowing machine is 245 ℃, the blow-up ratio is 1.5, the film thickness is 50 mu m, and the curling speed is 40 m/min.
Example 2
In this embodiment, a high temperature resistant vacuum bag film is provided, and a preparation raw material of the high temperature resistant vacuum bag film comprises the following components in parts by weight:
the preparation method comprises the following steps:
and (2) filling the copolymerized nylon, the polyester elastomer, the copper salt heat stabilizer, the color master and the high-moisture-absorption plastic particles in the formula ratio into a hopper of a spiral plastic extruder, plasticizing and melting, conveying the melt raw material to a die head of a single-layer film blowing machine under the action of the internal pressure of a charging barrel of the spiral plastic extruder and the screw thrust of the spiral plastic extruder, and blowing the extruded tubular blank through the die head of the single-layer film blowing machine to obtain the high-temperature-resistant vacuum bag film.
Wherein the screw temperature of the screw plastic extruder is 250 ℃, the rotating speed is 20rpm, and the extrusion processing pressure is 25 MPa; the temperature of the single-layer film blowing machine is 255 ℃, the blow-up ratio is 2.0, the film thickness is 30 mu m, and the curling speed is 10 m/min.
Example 3
In this embodiment, a high temperature resistant vacuum bag film is provided, and a preparation raw material of the high temperature resistant vacuum bag film comprises the following components in parts by weight:
the preparation method comprises the following steps:
and (2) filling the copolymerized nylon, the polyester elastomer, the copper salt heat stabilizer, the color master and the high-moisture-absorption plastic particles in the formula ratio into a hopper of a spiral plastic extruder, plasticizing and melting, conveying the melt raw material to a die head of a single-layer film blowing machine under the action of the internal pressure of a charging barrel of the spiral plastic extruder and the screw thrust of the spiral plastic extruder, and blowing the extruded tubular blank through the die head of the single-layer film blowing machine to obtain the high-temperature-resistant vacuum bag film.
Wherein the screw temperature of the screw plastic extruder is 225 ℃, the rotating speed is 80rpm, and the extrusion processing pressure is 10 MPa; the temperature of the single-layer film blowing machine is 235 ℃, the blow-up ratio is 1.3, the film thickness is 100 mu m, and the curling speed is 60 m/min.
Example 4
In this embodiment, a high temperature resistant vacuum bag film is provided, and a preparation raw material of the high temperature resistant vacuum bag film comprises the following components in parts by weight:
the preparation method comprises the following steps:
the high-temperature-resistant vacuum bag film is prepared by the steps of filling the homopolymerized nylon, the polyester elastomer, the copper salt heat stabilizer, the color master and the high-moisture-absorption plastic particles with the formula ratio into a hopper of a spiral plastic extruder, plasticizing and melting, conveying the melt raw material to a die head of a single-layer film blowing machine under the action of the internal pressure of a charging barrel of the spiral plastic extruder and the screw thrust of the screw, and blowing the extruded tubular blank through the die head of the single-layer film blowing machine to obtain the high-temperature-resistant vacuum bag film.
Wherein the screw temperature of the screw plastic extruder is 237 ℃, the rotating speed is 50rpm, and the extrusion processing pressure is 17 MPa; the temperature of the single-layer inflation film manufacturing machine is 245 ℃, the inflation ratio is 1.7, the film thickness is 45 mu m, and the curling speed is 20 m/min.
Example 5
In this embodiment, a high temperature resistant vacuum bag film is provided, and a preparation raw material of the high temperature resistant vacuum bag film comprises the following components in parts by weight:
the preparation method comprises the following steps:
the high-temperature-resistant vacuum bag film is prepared by the steps of filling the homopolymerized nylon, the polyester elastomer, the copper salt heat stabilizer, the color master and the high-moisture-absorption plastic particles with the formula ratio into a hopper of a spiral plastic extruder, plasticizing and melting, conveying the melt raw material to a die head of a single-layer film blowing machine under the action of the internal pressure of a charging barrel of the spiral plastic extruder and the screw thrust of the screw, and blowing the extruded tubular blank through the die head of the single-layer film blowing machine to obtain the high-temperature-resistant vacuum bag film.
Wherein the screw temperature of the screw plastic extruder is 230 ℃, the rotating speed is 60rpm, and the extrusion processing pressure is 15 MPa; the temperature of the single-layer film blowing machine is 240 ℃, the blow-up ratio is 1.8, the film thickness is 80 mu m, and the curling speed is 30 m/min.
Example 6
In this embodiment, a high temperature resistant vacuum bag film is provided, and a preparation raw material of the high temperature resistant vacuum bag film comprises the following components in parts by weight:
the preparation method comprises the following steps:
the high-temperature-resistant vacuum bag film is prepared by the steps of filling the homopolymerized nylon, the polyester elastomer, the copper salt heat stabilizer, the color master and the high-moisture-absorption plastic particles with the formula ratio into a hopper of a spiral plastic extruder, plasticizing and melting, conveying the melt raw material to a die head of a single-layer film blowing machine under the action of the internal pressure of a charging barrel of the spiral plastic extruder and the screw thrust of the screw, and blowing the extruded tubular blank through the die head of the single-layer film blowing machine to obtain the high-temperature-resistant vacuum bag film.
Wherein the screw temperature of the screw plastic extruder is 228 ℃, the rotating speed is 70rpm, and the extrusion processing pressure is 13 MPa; the temperature of the single-layer film blowing machine is 238 ℃, the blow-up ratio is 1.9, the film thickness is 80 mu m, and the curling speed is 50 m/min.
Comparative example 1
This comparative example differs from example 1 only in that the weight part of the polyester-based elastomer was 10 parts, i.e., reduced from 36 parts to 10 parts, and the weight part of the copolymerized nylon was correspondingly increased by 26 parts.
Comparative example 2
The comparative example is different from example 1 only in that the weight portion of the polyester elastomer is 85 parts, the weight portion of the copolymerized nylon is correspondingly reduced to 10 parts, the weight portion of the high moisture absorption plastic particles is reduced to 5 parts, and the copper salt-free heat stabilizer and the color master are omitted.
Comparative example 3
The comparative example is different from example 1 only in that the preparation raw material does not include the aid high moisture absorption plastic particles, and the weight portion of the copolymerized nylon is 60 portions.
Comparative example 4
The difference between the comparative example and the example 1 is that the weight part of the auxiliary agent high moisture absorption plastic particles is 3 parts, and the weight part of the copolymerized nylon is 57 parts.
Comparative example 5
The difference between the comparative example and the example 1 is that the weight portion of the auxiliary agent high moisture absorption plastic particles is 25 parts, and the weight portion of the copolymerized nylon is 35 parts.
The high temperature resistant vacuum bag films prepared in examples 1-6 and comparative examples 1-5 were subjected to performance tests according to the following methods:
(1) tensile properties (tensile strength, elongation at break, tensile modulus): the test was carried out according to the method of GB1040, with the test results shown in table 1;
(2) moisture absorption rate: the tensile modulus was measured according to GB1040 with a time gradient (0min, 10min, 20min, 30min, 60min, 120min), and the rate of change of the tensile modulus was compared, and the results are shown in Table 2, where the unit of the tensile modulus measured in Table 2 is MPa.
TABLE 1
As can be seen from Table 1, the tensile strength of the high-temperature resistant vacuum bag films prepared in examples 1-6 is 67MPa-86MPa, the elongation at break is 472% -520%, the use conditions of products are met, and the high-temperature resistant vacuum bag films have a lower tensile modulus of 130MPa-210MPa, which indicates that the high-temperature resistant vacuum bag films are better in flexibility.
Compared with example 1, the high-temperature resistant vacuum bag film prepared in comparative example 1 has higher tensile modulus and poor flexibility, and the high-temperature resistant vacuum bag film prepared in comparative example 2 is difficult to form a film, so that the test cannot be carried out.
Compared with example 1, the tensile modulus of the high temperature resistant vacuum bag films prepared in comparative example 3 and comparative example 4 is higher, the flexibility is slightly poor, the tensile strength of the high temperature resistant vacuum bag film prepared in comparative example 5 is reduced, and the film forming effect is poor, and occasionally blister appears on the film surface during the preparation process, which is caused by too high addition amount of the moisture absorption aid.
TABLE 2
As can be seen from Table 2, the tensile modulus of the high-temperature resistant vacuum bag films prepared in examples 1 to 6 can be balanced and stable within 20 to 30 min; the tensile modulus of the high-temperature resistant vacuum bag film prepared in the comparative example 1 is 570MPa after being stabilized, and the tensile modulus of the high-temperature resistant vacuum bag films prepared in the comparative examples 3 and 4 is reduced until the high-temperature resistant vacuum bag films do not reach a moisture absorption equilibrium state after 120 min; comparative example 5 the membrane face quality was poor as described above.
Combining tables 1 and 2, example 1 is the most preferred example, and has both high tensile strength and fast moisture absorption rate, and the modulus decreases fast, i.e., the film has the best flexibility.
The applicant states that the present invention is illustrated by the above examples to provide a high temperature resistant vacuum bag film and a method for making and using the same, but the present invention is not limited to the above examples, i.e. it is not meant that the present invention must be implemented by the above examples. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (10)
1. The high-temperature-resistant vacuum bag film is characterized in that the preparation raw materials of the high-temperature-resistant vacuum bag film comprise the following components in parts by weight:
2. the high temperature resistant vacuum bagging film of claim 1, wherein said nylon comprises co-polymerized nylon and/or homo-polymerized nylon.
3. The high temperature resistant vacuum bag film of claim 1 or 2, wherein the elastomer is a polyester-based elastomer.
4. The high temperature resistant vacuum bagging film of any one of claims 1-3, wherein the heat stabilizer is a copper salt based heat stabilizer.
5. The high temperature resistant vacuum bag film of any of claims 1-4, wherein the auxiliary agent is a high moisture absorption type plastic particle.
6. The high-temperature-resistant vacuum bag film as claimed in any one of claims 1 to 5, wherein the preparation raw materials of the high-temperature-resistant vacuum bag film comprise the following components in parts by weight:
7. the method of preparing a high temperature resistant vacuum bag film according to any one of claims 1-6, comprising the steps of:
the nylon, the elastomer, the heat stabilizer, the color master and the auxiliary agent with the formula ratio are filled into a hopper of a spiral plastic extruder, the materials are plasticized and melted, the melt-shaped raw materials are conveyed to a die head of a single-layer film blowing machine under the action of the internal pressure of the charging barrel of the spiral plastic extruder and the thrust of a screw rod of the spiral plastic extruder, and the extruded tubular blank is blown through the die head of the single-layer film blowing machine to obtain the high-temperature resistant vacuum bag film.
8. The preparation method of the screw plastic extruder according to claim 7, wherein the screw temperature of the screw plastic extruder is 225-250 ℃, the rotation speed is 20-80 rpm, and the extrusion processing pressure is 10-25 MPa.
9. The method according to claim 7 or 8, wherein the temperature of the single layer film blowing machine is 235 to 255 ℃, the blow-up ratio is 1.3 to 2.0, the film thickness is 30 to 100 μm, and the curling speed is 10 to 60 m/min.
10. Use of a high temperature resistant vacuum bag film according to any one of claims 1-6 in aerospace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110468146.9A CN113512288A (en) | 2021-04-28 | 2021-04-28 | High-temperature-resistant vacuum bag film and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110468146.9A CN113512288A (en) | 2021-04-28 | 2021-04-28 | High-temperature-resistant vacuum bag film and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113512288A true CN113512288A (en) | 2021-10-19 |
Family
ID=78064019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110468146.9A Pending CN113512288A (en) | 2021-04-28 | 2021-04-28 | High-temperature-resistant vacuum bag film and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113512288A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009631A (en) * | 2016-07-09 | 2016-10-12 | 上海沥高科技股份有限公司 | High-temperature-resistant vacuum bag film LVF215R and preparation method thereof |
| CN106189200A (en) * | 2016-07-09 | 2016-12-07 | 上海沥高科技股份有限公司 | A kind of high temperature resistant vacuum bag thin film LVF200G and preparation method thereof |
| CN110481128A (en) * | 2019-08-12 | 2019-11-22 | 上海沥高科技股份有限公司 | A kind of vacuum bag film and preparation method thereof with two-sided release function |
| CN112480659A (en) * | 2020-12-02 | 2021-03-12 | 厦门长塑实业有限公司 | Toughened biaxially oriented polyamide film and preparation method thereof |
-
2021
- 2021-04-28 CN CN202110468146.9A patent/CN113512288A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009631A (en) * | 2016-07-09 | 2016-10-12 | 上海沥高科技股份有限公司 | High-temperature-resistant vacuum bag film LVF215R and preparation method thereof |
| CN106189200A (en) * | 2016-07-09 | 2016-12-07 | 上海沥高科技股份有限公司 | A kind of high temperature resistant vacuum bag thin film LVF200G and preparation method thereof |
| CN110481128A (en) * | 2019-08-12 | 2019-11-22 | 上海沥高科技股份有限公司 | A kind of vacuum bag film and preparation method thereof with two-sided release function |
| CN112480659A (en) * | 2020-12-02 | 2021-03-12 | 厦门长塑实业有限公司 | Toughened biaxially oriented polyamide film and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112029173B (en) | Polyethylene breathable film and preparation method thereof | |
| EP1244741A1 (en) | Polymer compositions containing thermoplastic starch and process of making | |
| CN113845761A (en) | High-transparency completely degradable film and preparation method thereof | |
| CN113956623B (en) | Full-biodegradable plastic composite modified material suitable for film bag and preparation method thereof | |
| US11732058B2 (en) | Thermoplastic starch and starch-based biodegradable film | |
| CN111978644A (en) | Polypropylene breathable film and preparation method thereof | |
| CN107573579A (en) | A kind of stretch wrap film material with high-intensity high-tenacity and preparation method thereof | |
| CN102756478A (en) | Method for preparing high-performance thermotropic liquid crystal polymer/PET (Polyethylene Terephthalate) in-situ composite thin-film material | |
| WO2023024939A1 (en) | Microfoam polypropylene composition, and preparation method therefor and application thereof | |
| CN113185810A (en) | Renewable high-barrier polyester packaging material and preparation method thereof | |
| CN112080067A (en) | High-filling filler modified polyolefin composite material and preparation method and application thereof | |
| CN111748182A (en) | High-transparency high-toughness polylactic acid-based material and preparation method thereof | |
| CN113512288A (en) | High-temperature-resistant vacuum bag film and preparation method and application thereof | |
| CN113442401A (en) | High-strength high-barrier PGA/PBAT food packaging film and preparation method thereof | |
| CN112708230B (en) | Thermoplastic polyvinyl alcohol composition with special surface property, film and preparation method thereof | |
| WO2020088215A1 (en) | Pha-modified ppc/pbat biodegradable resin and preparation method therefor | |
| CN114921069B (en) | Full-biodegradable film with high heat seal strength and preparation method and application thereof | |
| CN111303549B (en) | Preparation method of reinforced and toughened polystyrene and stretched film | |
| CN115558220A (en) | Antistatic SPU sole material and preparation method thereof | |
| CN115011019A (en) | High-strength PE gas pipe and preparation method thereof | |
| CN114407471A (en) | Three-layer co-extrusion biodegradable automatic packaging film material and manufacturing method thereof | |
| CN112194869A (en) | Special PVA material capable of being thermoplastically processed and preparation method thereof | |
| CN108948533B (en) | Method for improving comprehensive mechanical property of polypropylene composite plastic | |
| CN112876828A (en) | Degradable electronic film and preparation method thereof | |
| CN111440376A (en) | Wear-resistant polyethylene film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231130 Address after: 315336 No.188 Binhai fifth road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Applicant after: NINGBO LIGAO COMPOSITE MATERIAL Co.,Ltd. Address before: No.18, Lane 1365, Kangqiao East Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201300 Applicant before: SHANGHAI LEADGO-TECH CO.,LTD. |