CN106147152A - A kind of easily cutting PET sheet and preparation method thereof - Google Patents
A kind of easily cutting PET sheet and preparation method thereof Download PDFInfo
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- CN106147152A CN106147152A CN201610625306.5A CN201610625306A CN106147152A CN 106147152 A CN106147152 A CN 106147152A CN 201610625306 A CN201610625306 A CN 201610625306A CN 106147152 A CN106147152 A CN 106147152A
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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
- 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
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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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- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Polyesters Or Polycarbonates (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of easily cutting PET sheet and preparation method thereof, described sheet material is made up of the raw material of following mass percent: PET pellet 78～90%, bulking agent 1.5～3%, PETG pellet 8～18.5%, catalyst 0.3～0.8%, described bulking agent is glycidyl methacrylate graft polystyrene, and described catalyst is antimony glycol.Present invention also offers the preparation method of this PET sheet, comprise the following steps: bulking agent and catalyst are mixed and made into hybrid particles by (1)；(2) hybrid particles of PET pellet and step (1) is mixed, extrusion plasticizing crystallized, dried；(3) by extrusion plasticizing crystallized for PETG pellet, dried；(4) material after extrusion plasticizing in step (2) and (3) is made sheet material through die head, more cooled glazing, draw, cut i.e. to obtain and easily cut PET sheet.PET sheet prepared by the present invention, its performance disclosure satisfy that normal while using, also more easily cuts, it is adaptable to a plastics sucking moulding packaging.
Description
Technical field
The invention belongs to material processing field, be specifically related to a kind of easily cutting PET sheet and preparation method thereof.
Background technology
Polyethylene terephthalate (PET) be realized the earliest by du pont company nineteen fifty-three industrialized linear poly-
Compound, the high symmetry of its molecular chain structure and the rigidity to phenyl key so that it is there is good machining property, chemically-resistant
The performances such as corrosivity, electrical insulating property, safety and antimicrobial aggressivity, and owing to relative low price and easy recovery etc. are excellent
Point, is widely used in the every field such as thin film, fiber, plastic.Along with the development of Packing Machine technology, traditional Packing Machine
The existing sign gradually made the transition to plastics sucking moulding packer of streamline, a many employing of plastics sucking moulding packer is scissor cuts
Cutting, owing to existing PET sheet toughness is relatively strong, use scissor cutting Cutter wear especially severe, cost is very big, thus not
Be suitable to a plastics sucking moulding.
As the patent documentation of Publication No. CN105524433A discloses the preparation method of a kind of PET, the method is at PET base
Adding appropriate branched polystyrene BPS in body, by melt blending, prepare PET/BPS blend, wherein the consumption of BPS is PET
The 0.5～2.0% of weight.The branched polystyrene that this invention is high by molecular weight, degree of branching is high and PET are by melt blending system
Standby PET/BPS blend, compared with pure PET, impact strength improves 10～20%, and elongation at break reaches 50～400%, system
Preparation Method is simple, improves the commercial application value of PET, but PET/BPS blend toughness prepared by the method is very big, to cutter
Tool serious wear, is not suitable for a plastics sucking moulding packaging.
Summary of the invention
It is high that the present invention is primarily directed to existing PET sheet toughness, the problem being unsuitable for a plastics sucking moulding packaging, it is provided that
Plant and easily cut PET sheet, present invention also offers the preparation method of this PET sheet.
What the present invention provided easily cuts PET sheet, is made up of the raw material of following mass percent: PET pellet 78～90%,
Bulking agent 1.5～3%, PETG pellet 8～18.5%, catalyst 0.3～0.8%.
The present invention, in PET and PETG blend, adds appropriate bulking agent and catalyst to promote that PET and PETG is altogether
Mixed, along with bulking agent consumption increases, the mechanical property of PET and PETG blend then can decline.Because the bulking agent of excess except
It is present at PET and PETG two-phase interface, also has part can form " micelle ", in PET and PETG presented in third phase
Blend in, PET thermal degradation can be caused under high temperature and shear action, thus cause molecule chain break, reduce strand
Entanglement, make intermolecular structure become check configuration from network structure, reach the effect easily cut.Additionally use PETG with
PET is combined, and can improve molecule chain flexibility, utilize PETG low-temperature processability simultaneously, it is possible to decrease the processing temperature in production process.
As preferably, described bulking agent is glycidyl methacrylate graft polystyrene.
As preferably, described catalyst is antimony glycol.
As preferably, described PET sheet is made up of the raw material of following mass percent: PET pellet 85%, bulking agent
2.5%, PETG pellet 12%, catalyst 0.5%.Use the PET sheet that the raw material of said ratio prepares, ensure its property
While disclosure satisfy that normal use, it is easier to cutting, thus it is applicable to a plastics sucking moulding packaging.
The preparation method of PET sheet as above, comprises the following steps:
(1) by after bulking agent and catalyst mix homogeneously, grinding, pelletize obtain the hybrid particles of bulking agent and catalyst；
(2) by the hybrid particles mix homogeneously in PET pellet and step (1), crystallized, dried, by extruder one
Extrusion plasticizing, described crystallization temperature is 145～155 DEG C, and crystallization time is 3～5h；
(3) by crystallized for PETG pellet, dried, by extruder two extrusion plasticizing, described crystallization temperature be 130～
140 DEG C, crystallization time is 3～5h；
(4) material after extruder one extrusion plasticizing and the material after extruder two extrusion plasticizing enter die head through runner,
In die head composite layered and after making sheet material, cooled glazing, draw, cut after, obtain and easily cut PET sheet.
As preferably, described in step (2), extruder one is divided into six districts, each zone temperatures be respectively as follows: a district 240～
250 DEG C, two districts 250～260 DEG C, three districts 250～260 DEG C, four districts 255～265 DEG C, five districts 255～265 DEG C, six districts 255～
265℃.Each zone temperatures is most preferably: 245 DEG C of a district, 255 DEG C of 2nd district, 255 DEG C of 3rd district, 260 DEG C of 4th district, 260 DEG C of 5th district, six
260 DEG C of district.
As preferably, described in step (3), extruder two is divided into six districts, each zone temperatures be respectively as follows: a district 230～
240 DEG C, two districts 230～240 DEG C, three districts 240～250 DEG C, four districts 240～250 DEG C, five districts 240～250 DEG C, six districts 235～
245℃.Each district temperature is most preferably: 235 DEG C of a district, 235 DEG C of 2nd district, 245 DEG C of 3rd district, 245 DEG C of 4th district, 245 DEG C of 5th district, 6th district
240℃。
As preferably, the runner that in step (4), extruder one is connected with die head is divided into four districts, and each zone temperatures is
255～265 DEG C, most preferably 260 DEG C.
As preferably, the runner that in step (4), extruder two is connected with die head is divided into four districts, and each zone temperatures is
235～245 DEG C, most preferably 240 DEG C
As preferably, described in step (4), die head is divided into 5 districts, and each zone temperatures is 230～240 DEG C, most preferably
235℃。
The invention has the beneficial effects as follows: the present invention adds appropriate bulking agent in PET and PETG blend and closes catalyst,
To reduce the mechanical property of blend, while ensureing that blend performance disclosure satisfy that normal use, reach to be more easy to cutting
Purpose, so that the blend prepared is applicable to a plastics sucking moulding packaging.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described further.
If not raw material of the present invention and equipment refer in particular to, all it is commercially available or commonly used in the art, implements
Method in example, if no special instructions, is the conventional method of this area.
Embodiment 1
In the present embodiment, easily cutting PET sheet is made up of the raw material of following mass percent: PET pellet 78%, bulking agent
3%, PETG pellet 18.5%, catalyst 0.5%, wherein bulking agent is glycidyl methacrylate graft polystyrene,
Catalyst is antimony glycol.
Preparation method comprises the following steps:
(1) bulking agent and catalyst after mix homogeneously, are ground in low-speed mixer in grinder, then through comminutor
Prepare bulking agent and the hybrid particles of catalyst.
(2) by after the hybrid particles mix homogeneously in PET pellet and step (1), crystallization, crystallization temperature it are placed in crystallizing tower
Being 150 DEG C, crystallization time is 4h；After having crystallized, being dried in the material after crystallization is placed in drying, baking temperature is 165
DEG C, drying time is 6h；By dried material by extruder one extrusion plasticizing；Wherein extruder one is provided with six districts, respectively
Zone temperatures is respectively as follows: 240 DEG C of a district, 250 DEG C of 2nd district, 250 DEG C of 3rd district, 255 DEG C of 4th district, 255 DEG C of 5th district, 255 DEG C of 6th district.
(3) PETG pellet being placed in crystallizing tower crystallization, crystallization temperature is 135 DEG C, and crystallization time is 4h, and crystallization completes
After, it being dried in the PETG pellet after crystallization is placed in drying, baking temperature is 150 DEG C, and drying time is 6h；By dried
PETG pellet passes through extruder two extrusion plasticizing；Wherein extruder two is provided with six districts, and each zone temperatures is respectively as follows: a district 230
DEG C, 230 DEG C of 2nd district, 240 DEG C of 3rd district, 240 DEG C of 4th district, 240 DEG C of 5th district, 235 DEG C of 6th district.
(4) extruder one is connected with die head by runner respectively with extruder two outfan, extruder one and extruder two
Material after extrusion plasticizing enters die head through runner, carries out composite layered in die head, and makes the sheet of predetermined thickness through die head
Material, then carry out cooling down glazing through three-roller calendar, the sheet material after cooling glazing is the most easily cut PET sheet through traction, cutting.
Wherein, the runner that extruder one is connected with die head is divided into four districts, and each zone temperatures is 255 DEG C；Extruder two
The runner being connected with die head is also classified into four districts, and the temperature of each section is 235 DEG C；Die head is divided into 5 districts, and each zone temperatures is equal
It it is 230 DEG C.
Embodiment 2
In the present embodiment, easily cutting PET sheet is made up of the raw material of following mass percent: PET pellet 90%, bulking agent
1.5%, PETG pellet 8%, catalyst 0.5%, wherein bulking agent is glycidyl methacrylate graft polystyrene, urges
Agent is antimony glycol.
Preparation method comprises the following steps:
(1) bulking agent and catalyst after mix homogeneously, are ground in low-speed mixer in grinder, then through comminutor
Prepare bulking agent and the hybrid particles of catalyst.
(2) by after the hybrid particles mix homogeneously in PET pellet and step (1), crystallization, crystallization temperature it are placed in crystallizing tower
Being 145 DEG C, crystallization time is 5h；After having crystallized, being dried in the material after crystallization is placed in drying, baking temperature is 160
DEG C, drying time is 6h；By dried material by extruder one extrusion plasticizing；Wherein extruder one is provided with six districts, respectively
Zone temperatures is respectively as follows: 245 DEG C of a district, 255 DEG C of 2nd district, 255 DEG C of 3rd district, 260 DEG C of 4th district, 260 DEG C of 5th district, 260 DEG C of 6th district.
(3) PETG pellet being placed in crystallizing tower crystallization, crystallization temperature is 130 DEG C, and crystallization time is 3h, and crystallization completes
After, it being dried in the PETG pellet after crystallization is placed in drying, baking temperature is 160 DEG C, and drying time is 6h；By dried
PETG pellet passes through extruder two extrusion plasticizing；Wherein extruder two is provided with six districts, and each zone temperatures is respectively as follows: a district 235
DEG C, 235 DEG C of 2nd district, 245 DEG C of 3rd district, 245 DEG C of 4th district, 245 DEG C of 5th district, 240 DEG C of 6th district.
(4) extruder one is connected with die head by runner respectively with extruder two outfan, extruder one and extruder two
Material after extrusion plasticizing enters die head through runner, carries out composite layered in die head, and makes the sheet of predetermined thickness through die head
Material, then carry out cooling down glazing through three-roller calendar, the sheet material after cooling glazing is the most easily cut PET sheet through traction, cutting.
Wherein, the runner that extruder one is connected with die head is divided into four districts, and each zone temperatures is 260 DEG C；Extruder two
The runner being connected with die head is also classified into four districts, and the temperature of each section is 240 DEG C；Die head is divided into 5 districts, and each zone temperatures is equal
It it is 235 DEG C.
Embodiment 3
In the present embodiment, easily cutting PET sheet is made up of the raw material of following mass percent: PET pellet 85%, bulking agent
2.5%, PETG pellet 12%, catalyst 0.5%, wherein bulking agent is glycidyl methacrylate graft polystyrene,
Catalyst is antimony glycol.
Preparation method comprises the following steps:
(1) bulking agent and catalyst after mix homogeneously, are ground in low-speed mixer in grinder, then through comminutor
Prepare bulking agent and the hybrid particles of catalyst.
(2) by after the hybrid particles mix homogeneously in PET pellet and step (1), crystallization, crystallization temperature it are placed in crystallizing tower
Being 155 DEG C, crystallization time is 3h；After having crystallized, being dried in the material after crystallization is placed in drying, baking temperature is 160
DEG C, drying time is 6h；By dried material by extruder one extrusion plasticizing；Wherein extruder one is provided with six districts, respectively
Zone temperatures is respectively as follows: 245 DEG C of a district, 255 DEG C of 2nd district, 255 DEG C of 3rd district, 260 DEG C of 4th district, 260 DEG C of 5th district, 260 DEG C of 6th district.
(3) PETG pellet being placed in crystallizing tower crystallization, crystallization temperature is 140 DEG C, and crystallization time is 5h, and crystallization completes
After, it being dried in the PETG pellet after crystallization is placed in drying, baking temperature is 160 DEG C, and drying time is 6h；By dried
PETG pellet passes through extruder two extrusion plasticizing；Wherein extruder two is provided with six districts, and each zone temperatures is respectively as follows: a district 235
DEG C, 235 DEG C of 2nd district, 245 DEG C of 3rd district, 245 DEG C of 4th district, 245 DEG C of 5th district, 240 DEG C of 6th district.
(4) extruder one is connected with die head by runner respectively with extruder two outfan, extruder one and extruder two
Material after extrusion plasticizing enters die head through runner, carries out composite layered in die head, and makes the sheet of predetermined thickness through die head
Material, then carry out cooling down glazing through three-roller calendar, the sheet material after cooling glazing is the most easily cut PET sheet through traction, cutting.
Wherein, the runner that extruder one is connected with die head is divided into four districts, and each zone temperatures is 260 DEG C；Extruder two
The runner being connected with die head is also classified into four districts, and the temperature of each section is 240 DEG C；Die head is divided into 5 districts, and each zone temperatures is equal
It it is 235 DEG C.
Embodiment 4
In the present embodiment, easily cutting PET sheet is made up of the raw material of following mass percent: PET pellet 82%, bulking agent
2.8%, PETG pellet 14.4%, catalyst 0.8%, wherein bulking agent is glycidyl methacrylate graft polyphenyl second
Alkene, catalyst is antimony glycol.
Preparation method comprises the following steps:
(1) bulking agent and catalyst after mix homogeneously, are ground in low-speed mixer in grinder, then through comminutor
Prepare bulking agent and the hybrid particles of catalyst.
(2) by after the hybrid particles mix homogeneously in PET pellet and step (1), crystallization, crystallization temperature it are placed in crystallizing tower
Being 150 DEG C, crystallization time is 3h；After having crystallized, being dried in the material after crystallization is placed in drying, baking temperature is 160
DEG C, drying time is 6h；By dried material by extruder one extrusion plasticizing；Wherein extruder one is provided with six districts, respectively
Zone temperatures is respectively as follows: 250 DEG C of a district, 260 DEG C of 2nd district, 260 DEG C of 3rd district, 265 DEG C of 4th district, 265 DEG C of 5th district, 265 DEG C of 6th district.
(3) PETG pellet being placed in crystallizing tower crystallization, crystallization temperature is 140 DEG C, and crystallization time is 4h, and crystallization completes
After, it being dried in the PETG pellet after crystallization is placed in drying, baking temperature is 160 DEG C, and drying time is 6h；By dried
PETG pellet passes through extruder two extrusion plasticizing；Wherein extruder two is provided with six districts, and each zone temperatures is respectively as follows: a district 240
DEG C, 240 DEG C of 2nd district, 250 DEG C of 3rd district, 250 DEG C of 4th district, 250 DEG C of 5th district, 245 DEG C of 6th district.
(4) extruder one is connected with die head by runner respectively with extruder two outfan, extruder one and extruder two
Material after extrusion plasticizing enters die head through runner, carries out composite layered in die head, and makes the sheet of predetermined thickness through die head
Material, then carry out cooling down glazing through three-roller calendar, the sheet material after cooling glazing is the most easily cut PET sheet through traction, cutting.
Wherein, the runner that extruder one is connected with die head is divided into four districts, and each zone temperatures is 265 DEG C；Extruder two
The runner being connected with die head is also classified into four districts, and the temperature of each section is 245 DEG C；Die head is divided into 5 districts, and each zone temperatures is equal
It it is 240 DEG C.
Table 1 lists PET sheet and the performance test results of former PET sheet that embodiment 1～4 prepares, as shown in Table 1,
The PET sheet of embodiment 1～4 preparation is compared with former PET sheet, and hot strength and elongation at break are in a slight decrease, light transmittance, mist
Degree and proportion change are little, but by the access times of cutting implement, the PET sheet ratio of embodiment 1～4 preparation is former
PET sheet is easier to shear.
PET sheet prepared by table 1 present invention and the comparison of former PET sheet performance
The mensuration of hot strength, elongation at break, light transmittance, mist degree and proportion in table 1, respectively according to standard ASTM
D638, ASTM D638, ASTM D1746, ASTM D1003, ASTM D792 tests, and cutting implement is a plastics sucking moulding
Cutter conventional in packaging, access times are according to actually used number of times meter.
Claims (10)
1. an easy cutting PET sheet, it is characterised in that be made up of the raw material of following mass percent: PET pellet 78～
90%, bulking agent 1.5～3%, PETG pellet 8～18.5%, catalyst 0.3～0.8%.
Easy cutting PET sheet the most according to claim 1, it is characterised in that described bulking agent is Glycidyl methacrylate
Glyceride grafted polystyrene.
Easy cutting PET sheet the most according to claim 1 and 2, it is characterised in that described catalyst is antimony glycol.
Easy cutting PET sheet the most according to claim 3, it is characterised in that described PET sheet is by following mass percent
Raw material composition: PET pellet 85%, bulking agent 2.5%, PETG pellet 12%, catalyst 0.5%.
5. the preparation method easily cutting PET sheet as described in any one of Claims 1 to 4, it is characterised in that include with
Lower step:
(1) by after bulking agent and catalyst mix homogeneously, grinding, pelletize obtain the hybrid particles of bulking agent and catalyst；
(2) by the hybrid particles mix homogeneously in PET pellet and step (1), crystallized, dried, extruded by extruder one
Plasticizing, described crystallization temperature is 145～155 DEG C, and crystallization time is 3～5h；
(3) by crystallized for PETG pellet, dried, by extruder two extrusion plasticizing, described crystallization temperature is 130～140 DEG C,
Crystallization time is 3～5h；
(4) material after extruder one extrusion plasticizing and the material after extruder two extrusion plasticizing enter die head through runner, at mould
In head composite layered and after die head makes sheet material, more cooled glazing, draw, cut i.e. to obtain and easily cut PET sheet.
The preparation method of easy cutting PET sheet the most according to claim 5, it is characterised in that extrude described in step (2)
Machine one is divided into six districts, each zone temperatures be respectively as follows: a district 240～250 DEG C, two districts 250～260 DEG C, three districts 250～260 DEG C,
Four districts 255～265 DEG C, five districts 255～265 DEG C, six districts 255～265 DEG C.
The preparation method of easy cutting PET sheet the most according to claim 5, it is characterised in that extrude described in step (3)
Machine two is divided into six districts, each zone temperatures be respectively as follows: a district 230～240 DEG C, two districts 230～240 DEG C, three districts 240～250 DEG C,
Four districts 240～250 DEG C, five districts 240～250 DEG C, six districts 235～245 DEG C.
The preparation method of easy cutting PET sheet the most according to claim 5, it is characterised in that extruder one in step (4)
The runner being connected with die head is divided into four districts, and each zone temperatures is 255～265 DEG C.
The preparation method of easy cutting PET sheet the most according to claim 5, it is characterised in that extruder two in step (4)
The runner being connected with die head is divided into four districts, and each zone temperatures is 235～245 DEG C.
The preparation method of easy cutting PET sheet the most according to claim 5, it is characterised in that mould described in step (4)
Head is divided into 5 districts, and each zone temperatures is 230～240 DEG C.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454130A (en) * | 2018-02-05 | 2018-08-28 | 扬州富平新材料有限公司 | A kind of forming method of easy cutting RPET sheet materials |
| CN110303691A (en) * | 2018-03-27 | 2019-10-08 | 扬州市帝邦塑胶科技有限公司 | A kind of fast processing method of RPET sheet material |
| CN110919889A (en) * | 2019-12-09 | 2020-03-27 | 江苏巨麦新材料科技有限公司 | Easily-cut PET (polyethylene terephthalate) sheet and preparation method thereof |
| CN115304891A (en) * | 2022-03-16 | 2022-11-08 | 苏州方位无菌包装有限公司 | PET-based plastic uptake box and preparation process thereof |
| TWI805030B (en) * | 2021-10-15 | 2023-06-11 | 南亞塑膠工業股份有限公司 | Polyester composition and manufacturing method thereof |
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| CN103122129A (en) * | 2003-12-22 | 2013-05-29 | 伊士曼化工公司 | Polymer blends with improved notched impact strength |
| CN102199338A (en) * | 2011-04-08 | 2011-09-28 | 扬州三星塑胶有限公司 | APET/PETG composite material and its production technology |
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| CN110919889A (en) * | 2019-12-09 | 2020-03-27 | 江苏巨麦新材料科技有限公司 | Easily-cut PET (polyethylene terephthalate) sheet and preparation method thereof |
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