CN106009631A - High-temperature-resistant vacuum bag film LVF215R and preparation method thereof - Google Patents
High-temperature-resistant vacuum bag film LVF215R and preparation method thereof Download PDFInfo
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- CN106009631A CN106009631A CN201610537238.7A CN201610537238A CN106009631A CN 106009631 A CN106009631 A CN 106009631A CN 201610537238 A CN201610537238 A CN 201610537238A CN 106009631 A CN106009631 A CN 106009631A
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- vacuum bag
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- thin film
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- resistant vacuum
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- 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
- C08J2477/00—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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a high-temperature-resistant vacuum bag film. The high-temperature-resistant vacuum bag film is prepared from, by weight, 50-75 parts of homopolymerized nylon, 15-35 parts of copolymerized nylon, 2-10 parts of elastomers, 1-4 parts of a heat stabilizer and 0.2-2 parts of masterbatch through mixing and blowing molding. The invention further discloses a preparation method of the high-temperature-resistant vacuum bag film. The preparation method comprises the following steps that the raw materials are proportioned according to the component weight ratio in the technical scheme, the raw materials are loaded into a hopper of a screw plastic extruder to be plasticized and molten through the screw plastic extruder, the molten raw materials are conveyed to a die head of a single-layer film blowing machine under the action of the internal pressure of a material drum of the screw plastic extruder and the forward pushing force of a screw, and an extruded tubular blank is blown up into a tubular vacuum bag at a bush die of the single-layer film blowing machine.
Description
Technical field
The present invention relates to vacuum bag film applications, particularly to a kind of high temperature resistant vacuum bag thin film LVF215R and preparation thereof
Method.Wherein, the English of vacuum film is Vacuum Film, may be simply referred to as VF, and the vacuum bag thin film of the present invention is the highest uses temperature
Degree can reach more than 215 DEG C, belongs to more than 215 DEG C heatproof ranks, and the vacuum bag thin film of the present invention is red (Red),
So the high temperature resistant vacuum bag thin film of the present invention may be defined as LVF215R.
Background technology
Along with the raising day by day of aeronautical and space technology, the composite of increasing high performance-price ratio is led for Aero-Space
Territory, simultaneously for the demand also fast development of high temperature resistant vacuum bag thin film, and also has the quality of high temperature resistant vacuum bag thin film
High requirement.
Vacuum bag film, as the important consumptive material of vacuum technology, is a main material determining product quality.Along with high temperature
The research and development success of resin, vacuum consumptive material requires same lifting, and traditional coextrusion nylon film cannot meet high-temperature molding temperature requirement.
The basic dependence on import of high-temperature vacuum bag of existing market, localization process is slow and occupation rate is low, has huge market prospect
And space.
Although, have Chinese patent application to announce CN105038204A at present and disclose a kind of high temperature resistant vacuum bag film and system thereof
Preparation Method, but the hot strength of above-mentioned patent, percentage elongation, modulus, heat resistance are relatively low, it is difficult to meet and use requirement.
Summary of the invention
The technical problem to be solved is to provide a kind of high temperature resistant for the problem existing for prior art
Vacuum bag thin film and preparation method thereof, its maximum operation (service) temperature can reach 215 DEG C and meet aerospace field for vacuum bag
Intensity needed for thin film, modulus, durothermic requirement, ensured the air-tightness demand of vacuum bag simultaneously.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of high temperature resistant vacuum bag thin film, it is characterised in that blowout molding after being mixed by the raw material of following weight portion:
Homopolymerization nylon: 50～75 parts；
Copolymer nylon: 15～35 parts；
Elastomer: 2～10 parts；
Heat stabilizer: 1～4 part；
Color masterbatch: 0.2～2 part.
In a preferred embodiment of the invention, described high temperature resistant vacuum bag thin film is mixed by the raw material of following weight portion
Rear blowout molding:
Homopolymerization nylon: 58 parts；
Copolymer nylon: 32 parts；
Elastomer: 6 parts；
Heat stabilizer: 3 parts；
Color masterbatch: 1 part.
The preparation method of a kind of high temperature resistant vacuum bag thin film as described in any of the above-described technical scheme, it is characterised in that bag
Include following steps: go out raw material according to the proportioning component proportion of the components by weight in any of the above-described technical scheme, raw material is loaded
In the hopper of helical plastic extruder, through helical plastic extruder plastifying fusion, inside the barrel of helical plastic extruder
Under pressure and screw rod thereof thrust forward, the raw material of melt shape is transported to the die head of monolayer inflation film manufacturing machine, the pipe after extrusion
Shape blank is blown into tubular vacuum bag at the mouth die of monolayer inflation film manufacturing machine.
In a preferred embodiment of the invention, the extruder temperature of described screw rod plastic extruder is 245～260 DEG C,
Rotating speed is 15～80rpm, and extrusion tonnage is 15～30MPa；The temperature of described monolayer inflation film manufacturing machine is 250～265 DEG C, inflation
Ratio is 1.4～2, and film thickness is 30～100um, draw off rate 10～60m/min.
Owing to have employed technical scheme as above, maximum operation (service) temperature of the present invention can reach 215 DEG C, meet Aero-Space
Field, for the intensity needed for vacuum bag thin film, modulus, durothermic requirement, has ensured the air-tightness demand of vacuum bag simultaneously.
The tensile property of the thin film of the present invention such as following table:
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, enter below
One step illustrates the present invention, and in all examples below, its component content all selects parts by weight.
Embodiment 1
A kind of high temperature resistant vacuum bag thin film, the raw material of following weight portion blowout molding after mixing:
Homopolymerization nylon: 50 parts；
Copolymer nylon: 35 parts；
Elastomer: 10 parts；
Heat stabilizer: 4 parts；
Color masterbatch: 1 part.
The preparation method of a kind of high temperature resistant vacuum bag thin film, comprises the following steps: according to joining of above-mentioned components by weight
Go out raw material than component proportion, raw material is loaded in the hopper of helical plastic extruder, through helical plastic extruder plastifying fusion,
Under the barrel internal pressure and screw rod thrust forward thereof of helical plastic extruder, the raw material of melt shape is transported to list
The die head of layer inflation film manufacturing machine, the tubular blank after extrusion is blown into tubular vacuum bag at the mouth die of monolayer inflation film manufacturing machine.Screw rod is moulded
The extruder temperature of material extruder is 245 DEG C, and rotating speed is 15rpm, and extrusion tonnage is 15MPa；The temperature of monolayer inflation film manufacturing machine is
250 DEG C, blow-up ratio is 1.4, and film thickness is 30um, draw off rate 10m/min.
The tensile property parameter such as table 1 below of the thin film that embodiment 1 obtains
Table 1
The high-temperature resistant temperature of embodiment 1 is 208 DEG C
Embodiment 2
A kind of high temperature resistant vacuum bag thin film, the raw material of following weight portion blowout molding after mixing:
Homopolymerization nylon: 55 parts；
Copolymer nylon: 32 parts；
Elastomer: 9 parts；
Heat stabilizer: 3 parts；
Color masterbatch: 1 part.
The preparation method of a kind of high temperature resistant vacuum bag thin film, comprises the following steps: according to joining of above-mentioned components by weight
Go out raw material than component proportion, raw material is loaded in the hopper of helical plastic extruder, through helical plastic extruder plastifying fusion,
Under the barrel internal pressure and screw rod thrust forward thereof of helical plastic extruder, the raw material of melt shape is transported to list
The die head of layer inflation film manufacturing machine, the tubular blank after extrusion is blown into tubular vacuum bag at the mouth die of monolayer inflation film manufacturing machine.Screw rod is moulded
The extruder temperature of material extruder is 252 DEG C, and rotating speed is 50rpm, and extrusion tonnage is 22MPa；The temperature of monolayer inflation film manufacturing machine is
257 DEG C, blow-up ratio is 1.7, and film thickness is 60um, draw off rate 35m/min.
The tensile property parameter such as table 2 below of the thin film that embodiment 2 obtains
Table 2
The high-temperature resistant temperature of embodiment 2 is 210 DEG C
Embodiment 3
A kind of high temperature resistant vacuum bag thin film, the raw material of following weight portion blowout molding after mixing:
Homopolymerization nylon: 65 parts；
Copolymer nylon: 25 parts；
Elastomer: 6 parts；
Heat stabilizer: 3 parts；
Color masterbatch: 1 part.
The preparation method of a kind of high temperature resistant vacuum bag thin film, comprises the following steps: according to joining of above-mentioned components by weight
Go out raw material than component proportion, raw material is loaded in the hopper of helical plastic extruder, through helical plastic extruder plastifying fusion,
Under the barrel internal pressure and screw rod thrust forward thereof of helical plastic extruder, the raw material of melt shape is transported to list
The die head of layer inflation film manufacturing machine, the tubular blank after extrusion is blown into tubular vacuum bag at the mouth die of monolayer inflation film manufacturing machine.Screw rod is moulded
The extruder temperature of material extruder is 260 DEG C, and rotating speed is 80rpm, and extrusion tonnage is 30MPa；The temperature of monolayer inflation film manufacturing machine is
265 DEG C, blow-up ratio is 2, and film thickness is 100um, draw off rate 60m/min.
The tensile property parameter such as table 3 below of the thin film that embodiment 3 obtains
Table 3
The high-temperature resistant temperature of embodiment 3 is 213 DEG C
Embodiment 4
A kind of high temperature resistant vacuum bag thin film, the raw material of following weight portion blowout molding after mixing:
Homopolymerization nylon: 58 parts；
Copolymer nylon: 32 parts；
Elastomer: 6 parts；
Heat stabilizer: 3 parts；
Color masterbatch: 1 part.
The preparation method of a kind of high temperature resistant vacuum bag thin film, comprises the following steps: according to joining of above-mentioned components by weight
Go out raw material than component proportion, raw material is loaded in the hopper of helical plastic extruder, through helical plastic extruder plastifying fusion,
Under the barrel internal pressure and screw rod thrust forward thereof of helical plastic extruder, the raw material of melt shape is transported to list
The die head of layer inflation film manufacturing machine, the tubular blank after extrusion is blown into tubular vacuum bag at the mouth die of monolayer inflation film manufacturing machine.Screw rod is moulded
The extruder temperature of material extruder is 250 DEG C, and rotating speed is 55rpm, and extrusion tonnage is 25MPa；The temperature of monolayer inflation film manufacturing machine is
255 DEG C, blow-up ratio is 1.6, and film thickness is 75um, draw off rate 35m/min.
The tensile property parameter such as table 4 below of the thin film that embodiment 4 obtains
Table 4
The high-temperature resistant temperature of embodiment 4 is 215 DEG C
Can be learnt by the various embodiments described above and performance table, the maximum operation (service) temperature of the present invention can reach 205 DEG C, meets boat
Empty space industry, for the intensity needed for vacuum bag thin film, modulus, durothermic requirement, has ensured the air-tightness of vacuum bag simultaneously
Demand.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (4)
1. a high temperature resistant vacuum bag thin film, it is characterised in that blowout molding after being mixed by the raw material of following weight portion:
Homopolymerization nylon: 50～75 parts；
Copolymer nylon: 15～35 parts；
Elastomer: 2～10 parts；
Heat stabilizer: 1～4 part；
Color masterbatch: 0.2～2 part.
2. high temperature resistant vacuum bag thin film as claimed in claim 1 a kind of, it is characterised in that described high temperature resistant vacuum bag thin film by
Blowout molding after the raw material mixing of following weight portion:
Homopolymerization nylon: 58 parts；
Copolymer nylon: 32 parts；
Elastomer: 6 parts；
Heat stabilizer: 3 parts；
Color masterbatch: 1 part.
3. the preparation method of a high temperature resistant vacuum bag thin film as claimed in claim 1 or 2, it is characterised in that include following
Step: go out raw material according to the proportioning component proportion of the components by weight in described claim 1 or 2, raw material is loaded spiral and moulds
In the hopper of material extruder, through helical plastic extruder plastifying fusion, helical plastic extruder barrel internal pressure and
Under its screw rod thrust forward, the raw material of melt shape is transported to the die head of monolayer inflation film manufacturing machine, the tubular blank after extrusion
Tubular vacuum bag it is blown at the mouth die of monolayer inflation film manufacturing machine.
The preparation method of a kind of high temperature resistant vacuum bag thin film the most as claimed in claim 3, it is characterised in that described screw rod plastic
The extruder temperature of extruder is 245～260 DEG C, and rotating speed is 15～80rpm, and extrusion tonnage is 15～30MPa；Described monolayer
The temperature of inflation film manufacturing machine is 250～265 DEG C, and blow-up ratio is 1.4～2, and film thickness is 30～100um, draw off rate 10～60m/
min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537238.7A CN106009631A (en) | 2016-07-09 | 2016-07-09 | High-temperature-resistant vacuum bag film LVF215R and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537238.7A CN106009631A (en) | 2016-07-09 | 2016-07-09 | High-temperature-resistant vacuum bag film LVF215R and preparation method thereof |
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| CN106009631A true CN106009631A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610537238.7A Pending CN106009631A (en) | 2016-07-09 | 2016-07-09 | High-temperature-resistant vacuum bag film LVF215R and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512288A (en) * | 2021-04-28 | 2021-10-19 | 上海沥高科技股份有限公司 | High-temperature-resistant vacuum bag film and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995084A (en) * | 1973-07-09 | 1976-11-30 | Allied Chemical Corporation | Films and bags of nylon 6 - nylon 6,6 blends |
| US5206309A (en) * | 1991-03-06 | 1993-04-27 | Allied Signal Inc. | Heat stable film composition comprising polyepsiloncaprolactam |
| CN101029173A (en) * | 2007-03-16 | 2007-09-05 | 许波 | Modified resin material for producing flexible film and shrinkaged film and its production |
| CN105038204A (en) * | 2015-09-09 | 2015-11-11 | 厦门新旺新材料科技有限公司 | High-temperature-resistant vacuum bag film and preparing method thereof |
-
2016
- 2016-07-09 CN CN201610537238.7A patent/CN106009631A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995084A (en) * | 1973-07-09 | 1976-11-30 | Allied Chemical Corporation | Films and bags of nylon 6 - nylon 6,6 blends |
| US5206309A (en) * | 1991-03-06 | 1993-04-27 | Allied Signal Inc. | Heat stable film composition comprising polyepsiloncaprolactam |
| CN101029173A (en) * | 2007-03-16 | 2007-09-05 | 许波 | Modified resin material for producing flexible film and shrinkaged film and its production |
| CN105038204A (en) * | 2015-09-09 | 2015-11-11 | 厦门新旺新材料科技有限公司 | High-temperature-resistant vacuum bag film and preparing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512288A (en) * | 2021-04-28 | 2021-10-19 | 上海沥高科技股份有限公司 | High-temperature-resistant vacuum bag film and preparation method and application thereof |
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