CN107488336B - APET composite sheets and preparation method thereof and package sheet material - Google Patents
APET composite sheets and preparation method thereof and package sheet material Download PDFInfo
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- CN107488336B CN107488336B CN201710835019.1A CN201710835019A CN107488336B CN 107488336 B CN107488336 B CN 107488336B CN 201710835019 A CN201710835019 A CN 201710835019A CN 107488336 B CN107488336 B CN 107488336B
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- 229920008790 Amorphous Polyethylene terephthalate Polymers 0.000 title claims abstract description 104
- 239000002131 composite material Substances 0.000 title claims abstract description 72
- 239000000463 material Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000001301 oxygen Substances 0.000 claims abstract description 69
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 69
- 239000006096 absorbing agent Substances 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims description 28
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 238000007731 hot pressing Methods 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 6
- 239000005977 Ethylene Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 abstract description 14
- 230000004888 barrier function Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 229920003023 plastic Polymers 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 14
- 238000002425 crystallisation Methods 0.000 description 13
- 230000008025 crystallization Effects 0.000 description 13
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 8
- 239000005033 polyvinylidene chloride Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 229920001634 Copolyester Polymers 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 229920001684 low density polyethylene Polymers 0.000 description 6
- 239000004702 low-density polyethylene Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000004609 Impact Modifier Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005280 amorphization Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
-
- 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
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Packages (AREA)
Abstract
The present invention provides a kind of APET composite sheets, counts in parts by weight, including following component：APET is sliced 137 168 parts of resin, 1 11 parts of oxygen absorber.The invention also discloses the package sheet materials of the production method for preparing the APET composite sheets and a kind of application the APET composite sheets.The APET composite sheets of the present invention are made of oxygen absorber and APET slice resins, it is with good oxygen barrier property, it can be effectively by oxygen-barrier outside packaging bag using packaging bag made of this composite sheet, simultaneously because APET composite sheets have the function of oxygen uptake, using packaging bag made of this composite sheet can the oxygen internal to bag absorb, effectively extend the shelf-life of the internal food of bag；In addition, the APET composite sheets also have good shock resistance effect and can plastic uptake heat sealabilities.
Description
Technical field
The invention belongs to field of packaging material, specifically APET composite sheets and preparation method thereof and package sheet material
Background technology
Composite sheet with monomer or is added after additive under certain temperature, pressure, warp using polymer as basis
Solid material obtained by type or crosslinking curing molding is made in processing modeling, is widely used in instant food, beverage, electronic apparatus, metal
The industries such as the packaging and lamp decoration of product etc., advertisement, decoration.
APET composite sheets are a kind of plastic uptake materials, and chemical name is：Amorphization polyethylene terephthalate is multiple
Sheet material is closed, is thermoplastic environment-protecting plastic cement products, rim charge and waste material are recyclable, while also belonging to degradability plastics, extensively
For fields such as food, medical treatment, packagings, and the country is to possess more mature APET composite sheet production technologies.
The packaging bag made of APET composite sheets does not have the effect to extend the shelf life at present, when material packaging finishes
Afterwards, often the oxygen of some enters in packaging bag, and the oxygen for keeping material internal with bag, which reacts, accelerates material deterioration, and
Cost of manufacture and manufacturing cost can be increased by being vacuumized to bag body, it is therefore desirable to which research and development are a kind of at low cost, and can absorb
The APET composite sheets of oxygen.
Invention content
First of the present invention aims to overcome that the deficiencies in the prior art, provides a kind of multiple with the APET for absorbing oxygen
Close sheet material.
In order to achieve the above object, the present invention uses following technical scheme：A kind of APET composite sheets, in parts by weight
Meter, including following component：APET is sliced 137-168 parts of resin, 1-11 parts of oxygen absorber.
Compared with prior art, APET composite sheets of the invention are made of oxygen absorber and APET slice resins,
It, can be effectively by oxygen-barrier in packaging bag using packaging bag made of this composite sheet with good oxygen barrier property
It outside, can be internal to bag using packaging bag made of this composite sheet simultaneously because APET composite sheets have the function of oxygen uptake
Oxygen absorbed, effectively extend the shelf-life of the internal food of bag.
Further, the oxygen absorber accumulates in the middle part for the APET composite sheets to be formed, and prevents oxygen absorber mistake
The fast oxygen with air reacts.
Further, the group of the oxygen absorber becomes iron powder 0.1-10%, ethylene/vinyl alcohol copolymer 1-20%, gathers
Ethylene 5-30%, APET masterbatch 60-90%.
Second object of the present invention is to provide a kind of preparation method of the manufacture APET composite sheets, including walks as follows
Suddenly：
1) APET slices are placed in crystallizing tower and carry out crystallization treatment, place then is dried in the APET slices after crystallization
Reason；
2) each component of oxygen absorber is sufficiently mixed uniformly, it is then that uniformly mixed oxygen absorber, copolymerization is poly-
Processing is dried in ester and PVDC；
3) the APET slices after drying are led to the main blanking channel blanking of drawing mechanism；Oxygen absorber is under secondary simultaneously
Material channel carries out deoxidation processing, and conveys oxygen absorber to the middle part of main blanking channel.
Compared with prior art, production method of the invention makes APET slices, oxygen absorption by primary and secondary blanking channel
Agent separates blanking, and by making deoxidation processing to secondary blanking channel, prevents oxygen absorber when blanking by oxidation deactivation.
Preferably, time blanking channel is filled with nitrogen in step 3), for the oxygen in passing away.
Preferably, crystallization treatment process conditions described in step 1) is：Crystallization temperature is：165 DEG C, crystallization time is：
270min, drying temperature are：170-180 DEG C, drying time is：5-7h.
Preferably, dry treatment process condition described in step 2) is：Drying temperature is：170-180 DEG C, drying time
For：5-7h.
Third object of the present invention is to provide a kind of package sheet materials, compound by the APET described in the claims 1
Sheet material and PE films composition, the PE films are integral using the residual temperature hot pressing of APET composite sheets when APET composite sheets are squeezed out.
Compared with prior art, package sheet material of the invention is compound by PE films and APET using the residual temperature of APET composite sheets
Sheet material pressing is integral, need not on PE films glue coating, be not required in addition increase pressing working procedure, also need not be by piece after compound
Material merging curing cures in room, and process is simple, and production cost is low.
Preferably, the temperature of APET composite sheets is 200 DEG C -250 DEG C when pressing.Can ensure at such a temperature PE films with
The fitting effect of APET composite sheets.
Preferably, the PE films are equipped with EVA adhesive layers with APET composite sheets bonding side, and the EVA adhesive layers are by EVA
Material is made.EVA adhesive layers are set, PE films can be reduced and bond required temperature, ensure fitting effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the making apparatus of APET composite sheets of the present invention；
Fig. 2 is the structural schematic diagram of the blanking device of the making apparatus of APET composite sheets of the present invention.
Specific implementation mode
Illustrate technical scheme of the present invention below in conjunction with specific embodiment, the preparation of APET composite sheets is described below in detail
And its effect detection.
Embodiment 1：
The group of oxygen absorber becomes：Iron powder 0.5-5%, ethylene/vinyl alcohol copolymer 5-15%, polyethylene 10-20%,
APET masterbatch 65-80%；Polyethylene is low density polyethylene (LDPE).
1) 137KG APET slices are placed in crystallizing tower, in 165 DEG C of crystallization treatment 270min, then by the APET after crystallization
Slice obtains dry APET slices in 170 DEG C of dry 5h；
2) each component of 1.8KG oxygen absorbers is sufficiently mixed uniformly, then by uniformly mixed oxygen absorber,
20KG copolyesters and 16KG the PVDC dry 5.5h at 175 DEG C are separately dried；
3) dry APET slices are led to the main blanking channel blanking of drawing mechanism；Oxygen absorber after dry simultaneously exists
Secondary blanking channel carries out deoxidation processing, and conveys oxygen absorber to the middle part of main blanking channel, and then hot pressing melting obtains
APET composite sheets.
Embodiment 2：
The group of oxygen absorber becomes：Iron powder 0.5-5%, ethylene/vinyl alcohol copolymer 5-15%, polyethylene 10-20%,
APET masterbatch 65-80%；Polyethylene is low density polyethylene (LDPE).
1) 137KG APET slices are placed in crystallizing tower, in 165 DEG C of crystallization treatment 270min, then by the APET after crystallization
Slice obtains dry APET slices in 170 DEG C of dry 5h；
2) each component of 3.6KG oxygen absorbers is sufficiently mixed uniformly, then by uniformly mixed oxygen absorber,
20KG copolyesters and 16KG the PVDC dry 5.5h at 175 DEG C are separately dried；
3) will dry APET slices, it is dry after copolyester and it is dry after PVDC be uniformly mixed, and to drawing mechanism
Main blanking channel blanking；Oxygen absorber after dry simultaneously carries out deoxidation processing in secondary blanking channel, and logical to main blanking
The middle part in road conveys oxygen absorber, and then hot pressing melting obtains APET composite sheets.
Embodiment 3：
The group of oxygen absorber becomes：Iron powder 0.5-5%, ethylene/vinyl alcohol copolymer 5-15%, polyethylene 10-20%,
APET masterbatch 65-80%；Polyethylene is low density polyethylene (LDPE).
1) 137KG APET slices are placed in crystallizing tower, in 165 DEG C of crystallization treatment 270min, then by the APET after crystallization
Slice obtains dry APET slices in 170 DEG C of dry 5h；
2) each component of 5.5KG oxygen absorbers is sufficiently mixed uniformly, then by uniformly mixed oxygen absorber,
20KG copolyesters and 16KG the PVDC dry 5.5h at 175 DEG C are separately dried；
3) will dry APET slices, it is dry after copolyester and it is dry after PVDC be uniformly mixed, and to drawing mechanism
Main blanking channel blanking；Oxygen absorber after dry simultaneously carries out deoxidation processing in secondary blanking channel, and logical to main blanking
The middle part in road conveys oxygen absorber, and then hot pressing melting obtains APET composite sheets.
Embodiment 4：
The group of anti-impact modifier becomes：MBS 62kg, ACR 25kg, CPE 7kg, polyol ester 6kg.
1) 137KG APET slices are placed in crystallizing tower, in 165 DEG C of crystallization treatment 270min, then by the APET after crystallization
Slice obtains dry APET slices in 170 DEG C of dry 5h；
2) each component of 1.8KG anti-impact modifiers is sufficiently mixed uniformly, then by uniformly mixed impact modification
Agent, 20KG copolyesters and 16KG the PVDC dry 5.5h at 175 DEG C are separately dried；
3) copolyester after dry APET slices, drying and PVDC, anti-impact modifier after drying are uniformly mixed,
And to the main blanking channel blanking of drawing mechanism, then hot pressing melting obtains APET composite sheets.
Test the relationship of the additive amount of oxygen absorber and the oxygen barrier property of APET composite sheets：
Multigroup test is carried out to the APET composite sheets prepared by 1-4 of the embodiment of the present invention and removes average value, obtains oxygen
The results are shown in table below for influence of the absorbent to the oxygen barrier property of APET composite sheets, and wherein OTR oxygen transmission rate is according to GB/
T19789-2005 standard testings.
| Sheet material | Additive amount % | Oxygen transit dose cm3/(m2·24h·0.1Mpa) |
| Embodiment 4 | 0.0 | 3 |
| Embodiment 1 | 1.0 | <0.1 |
| Embodiment 2 | 2.0 | <0.5 |
| Embodiment 3 | 3.0 | <1 |
When the additive amount of the oxygen absorber in the APET composite sheets of the present invention it can be seen from above-mentioned experimental data
When being 1.0%, the oxygen barrier property of APET composite sheets is relatively preferable；With the oxygen absorber in APET composite sheets
When additive amount deviates 1.0%, the oxygen barrier property of APET composite sheets declines.
Test the relationship of the oxygen barrier property of APET composite sheets and the shock resistance of APET composite sheets：
Average value, the performance of acquisition are gone by multigroup test to the APET composite sheets prepared by 1-4 of the embodiment of the present invention
The results are shown in table below, and wherein OTR oxygen transmission rate presses ASTM F1307 standards, and notch impact strength is by ASTM D256 tests.
| Sheet material | OTR oxygen transmission rate cm3/(m2·24h) | Anti-impact force J/M |
| Embodiment 1 | 15.5 | 319 |
| Embodiment 2 | 18.2 | 295 |
| Embodiment 3 | 28.5 | 302 |
| Embodiment 4 | 60.6 | 305 |
It can be seen from above-mentioned experimental data after the oxygen absorber of suitable present invention is added, APET composite sheets
Material has good oxygen barrier property and shock resistance simultaneously, and after insufficient or excessive oxygen absorber is added, APET
The oxygen barrier property of composite sheet weakens, and shock resistance is undesirable.
Compared with prior art, APET composite sheets of the invention are made of oxygen absorber and APET slice resins,
It, can be effectively by oxygen-barrier in packaging bag using packaging bag made of this composite sheet with good oxygen barrier property
It outside, can be internal to bag using packaging bag made of this composite sheet simultaneously because APET composite sheets have the function of oxygen uptake
Oxygen absorbed, effectively extend the shelf-life of the internal food of bag.
Embodiment 5：
The preparation method of package sheet material：PE films and APET composite sheets are pressed into one using the residual temperature of APET composite sheets
Body forms package sheet material.
Embodiment 6：
The preparation method of package sheet material：The PE films are equipped with EVA adhesive layers with APET composite sheets bonding side, described
EVA adhesive layers are made of EVA material；The fusing point of known EVA material is 80 DEG C -120 DEG C, will using the residual temperature of APET composite sheets
PE films, APET composite sheets, EVA adhesive layers totally 3 are laminated integrator.
This production method can reduce PE films and bond required temperature, ensure fitting effect.
The preparation of the package sheet material of embodiment 5-6, need not on PE films glue coating, be not required in addition increase pressing work
Sheet material need not also be placed in curing room after compound and cure by sequence, and process is simple, and production cost is low.
Embodiment 7：
Referring to Fig. 1 and Fig. 2, a kind of making apparatus of APET composite sheets, including blanking device 1, extrusion mechanism 2, discharging
Device 4 and wrap-up 7, the extrusion mechanism 2 are provided with heating device 3, and the extrusion mechanism 2 connects going out for blanking device 1
Material mouth 10 and drawing mechanism 4, the blanking device 1 include main blanking channel 11 and time blanking channel 12, the secondary blanking channel
12 are handled for deoxidation, and the main blanking channel 11 and the intersection of the secondary blanking channel 12 form discharge port 10.
APET raw materials are stored in main blanking channel 11, and oxygen absorber is stored in time blanking channel 12, and secondary blanking is logical
Road 12 can also use other protective gas, or such as vacuumize using the mode of other removal oxygen certainly filled with nitrogen；It needs
When blanking, primary and secondary blanking channel 11,12 is simultaneously to 2 feeding of extrusion mechanism, and heating device 3 is by the APET raw materials in extrusion mechanism 2
It is heated to molten condition, while extrusion mechanism 2, by the APET feedstock transportations of melting to drawing mechanism 4, drawing mechanism 4 squeezes out APET
Composite sheet 9.
As a preferred solution, further include unwinding device 5, flattening device 13 and press-roller device 6, the unwinding device
5 for unreeling PE films, and the flattening device 13 is for flattening PE films, and the press-roller device 6 is for the PE films 8 after being stacked
It is pressed integrally with APET composite sheets 9, the temperature of APET composite sheets 9 is 200 DEG C -250 DEG C when pressing；The press-roller device
6 include the first pressure roller 601, the second pressure roller 602 and the third pressure roller 603 being set up in parallel, first pressure roller 601, the second pressure roller
602 and third pressure roller 603 temperature be 25 DEG C -50 DEG C；It is described it is stacked after PE films 8 and APET composite sheets 9 from the first pressure roller
601 bypass the second pressure roller 602 and third pressure roller 603 along S-shaped, and the setting of wrap-up 7 is in 6 rear side of press-roller device.It is multiple using APET
Close the residual temperature of sheet material 9 by PE films 8 and APET composite sheets 9 press integrally need not on PE films 8 glue coating, be not required in addition
Increase pressing working procedure, sheet material need not be also placed in curing room and be cured after compound, process is simple, and production cost is low.
Compared with prior art, the making apparatus of APET composite sheets 9 provided by the invention, have deoxidation processing time under
Expect channel 12, so that oxygen absorber is not reacted with the oxygen in air when blanking, keep the APET made compound
Sheet material 9 has the function of oxygen uptake.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is changed.Therefore, the invention is not limited in specific implementation modes disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (5)
1. a kind of APET composite sheets, it is characterised in that：It counts in parts by weight, including following component：APET is sliced resin 137-
168 parts, 1-11 parts of oxygen absorber；
The group of the oxygen absorber becomes：Iron powder 0.1-10%, ethylene/vinyl alcohol copolymer 1-20%, polyethylene 5-30%,
APET masterbatch 60-90%.
2. a kind of APET composite sheets according to claim 1, it is characterised in that：The oxygen absorber accumulates in be formed
APET composite sheets middle part.
3. a kind of package sheet material, it is characterised in that：By 1 to 2 any one of them APET composite sheets of the claims and PE
Film forms, and the PE films are integral using the residual temperature hot pressing of APET composite sheets when APET composite sheets are squeezed out.
4. a kind of package sheet material according to claim 3, it is characterised in that：When hot pressing, the temperature of the APET composite sheets
Degree is 200 DEG C -250 DEG C.
5. a kind of package sheet material according to claim 3, it is characterised in that：The PE films bond one with APET composite sheets
Side is equipped with EVA adhesive layers, and the EVA adhesive layers are made of EVA material.
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| CN201710835019.1A CN107488336B (en) | 2017-09-15 | 2017-09-15 | APET composite sheets and preparation method thereof and package sheet material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2313399C (en) * | 1999-07-08 | 2005-02-15 | Kuraray Co., Ltd. | Thermoplastic resin composition and multilayered container using the same |
| US7186452B2 (en) * | 2003-04-22 | 2007-03-06 | Mitsubishi Polyester Film Gmbh | Coextruded, hot-sealable and peelable polyester film having high peeling resistance, process for its production and its use |
| DE10318102A1 (en) * | 2003-04-22 | 2004-11-11 | Mitsubishi Polyester Film Gmbh | Coextruded, heat-sealable and peelable polyester film with high peelability, process for its production and its use |
| CN104974485A (en) * | 2015-08-04 | 2015-10-14 | 金宝丽科技（苏州）有限公司 | APET composite sheet and preparation method thereof |
| CN205573216U (en) * | 2016-03-30 | 2016-09-14 | 东莞市天耀高分子材料科技有限公司 | Novel APET environmental protection packaging material |
| CN106113876A (en) * | 2016-07-06 | 2016-11-16 | 佛山市南海利达印刷包装有限公司 | A kind of package sheet material and manufacture method thereof and manufacture equipment |
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Denomination of invention: APET composite sheet and its preparation method and packaging sheet Granted publication date: 20181019 Pledgee: China Co. truction Bank Corp Foshan branch Pledgor: LD PACKAGING Co.,Ltd. Registration number: Y2024980023494 |