CN106810826B - A kind of medical printing substrate of PET and its production technology - Google Patents
A kind of medical printing substrate of PET and its production technology Download PDFInfo
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- CN106810826B CN106810826B CN201510859119.9A CN201510859119A CN106810826B CN 106810826 B CN106810826 B CN 106810826B CN 201510859119 A CN201510859119 A CN 201510859119A CN 106810826 B CN106810826 B CN 106810826B
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Abstract
The present invention provides a kind of medical printing substrate of PET and its production technology, polyethylene terephthalate, titanium dioxide, polyethylene glycol, talcum powder, antioxidant and antistatic agent 1:1~1.2:0.2 in mass ratio~0.3:0.2~0.3:0.01~0.05:0.01~0.05 are uniformly mixed, dry, extrusion obtains functional agglomerate；By polyethylene terephthalate, poly- 2,6- (ethylene naphthalate) and functional agglomerate are that 1:0.2~0.3:0.4~0.5 uniformly mixes in mass ratio, are added to parallel double-screw extruder, fusion plastification, it is squeezed out through die head, into forming uniform diaphragm in calender；Diaphragm obtains the medical printing substrate of finished product PET by trimming, traction, winding.This production technology uses blending and modifying, and the heat resistance and moistened surface tension of the medical printing substrate of PET can be improved, reduce the production cost of substrate.
Description
Technical field
The present invention relates to a kind of medical printing substrate of PET and its production technologies, belong to technical field of polymer material processing.
Background technique
With the development of national economy and the increasingly raising of living standard, the health care level of people is also correspondinglyd increase,
Accelerate the upgrading of demand for medical service.And modern medicine prevention of disease and treatment rely heavily on advanced medical treatment and set
Standby inspection result, this result are mainly presented by various imaging of medical films.Meanwhile the hair of digital medical imaging technique
Exhibition makes medical image come into digital times, in corresponding medical imaging diagnosis, with " chip base " for terylene (PET)
The dry type film of chip base graduallys mature.
Medical printing substrate currently used in the market is mainly double to draw polyester film (BOPET), BOPET film have at
The advantages that as clear, colour-fast, waterproof antiwear is easy to use, economic and environment-friendly meets the international standard of medical image, adapts to generation
The development trend of boundary's medical image is the optimal selection of clinical medicine image printing.
But the heat resistance of BOPET is not high enough, intolerant to hydrolysis, barrier property is not satisfactory, and production technology is complicated, double drawings
Line equipment price is expensive.Deficiency of the BOPET as medical printing substrate is able to solve using the method for blending and modifying.
Summary of the invention
In order to overcome, heat resistance is not high, barrier property is undesirable, production technology is complicated present in current medical printing substrate
The disadvantages of, the present invention provides a kind of medical printing substrate of PET and its production technology and it is medical that PET can be improved using blending and modifying
The heat resistance and barrier property for printing substrate, reduce the production cost of substrate.
The present invention realizes by following technical solution:
A kind of production technology of the medical printing substrate of PET, includes the following steps:
1) functional agglomerate is prepared
Polyethylene terephthalate, titanium dioxide, polyethylene glycol, talcum powder, antioxidant and antistatic agent is uniform
Mixing, dry, extrusion obtains functional agglomerate；
2) mixing squeezes out
Polyethylene terephthalate, poly- 2,6-naphthalenedicarboxylic acid glycol ester and functional agglomerate are uniformly mixed, are added
To parallel double-screw extruder, fusion plastification is squeezed out through die head, into forming uniform diaphragm in calender；
3) finished product is squeezed out
Diaphragm obtains the medical printing substrate of finished product PET by trimming, traction, winding.
Polyethylene terephthalate described in step 1), titanium dioxide, polyethylene glycol, talcum powder, antioxidant and anti-
The mass ratio of electrostatic agent is 1:1~1.2: 0.2~0.3:0.2~0.3:0.01~0.05:0.01~0.05.
It dries in step 1) and is carried out at 75~85 DEG C, is dried in vacuo 5~6 hours, so that the water content of functional agglomerate is lower than
400 ppm。
The mass ratio of polyethylene terephthalate, poly- 2,6- (ethylene naphthalate) and functional agglomerate in step 2
For 1:0.2~0.3: 0.4~0.5.
Diaphragm thickness is 95~105 μm in step 2.
The screw slenderness ratio of parallel double-screw extruder described in step 2 is 42:1, and machine barrel is the heating of 9th area, rack-style mould
Head is that 8th area are heated.The fusion plastification temperature is 250~290 DEG C, further, 9 area's heating temperature of extruder screw difference
Are as follows: 250~260 DEG C, 250~265 DEG C, 260~280 DEG C, 270~285 DEG C, 275~285 DEG C, 280~290 DEG C,
280~290 DEG C, 280~290 DEG C, 285~290 DEG C.
Die head extrusion temperature is 260~280 DEG C in step 2；Further, 8th area of extruder die head is heated, two sides temperature
It is identical are as follows: 270~280 DEG C；Five Qu Xiangtong of centre are as follows: 265~275 DEG C；Film lip temperature is 260~270 DEG C.
Calender central roll is Grains roller, and lower roll is silica gel roller；Diaphragm is extruded to shape among calender, and temperature is 20~30
DEG C, roller speed is 28~35 m/min in calender, and the velocity rate of central roll and lower roll is 1:1.1~1.3.
The medical printing substrate of PET that the production technology of the medical printing substrate of PET is prepared.
A kind of medical printing substrate of PET, raw material components and each component mass fraction are as follows: 1 part of ethylene terephthalate,
0.2~0.3 part of poly- 2,6-naphthalenedicarboxylic acid glycol ester, 0.4~0.5 part of functional agglomerate；Wherein the functional agglomerate is poly- pair
Ethylene terephthalate, titanium dioxide, polyethylene glycol, talcum powder, antioxidant, antistatic agent be in mass ratio 1:1~
1.2: 0.2~0.3:0.2~0.3:0.01~0.05:0.01~0.05 is mixed to get.
The polyethylene glycol is at least one of PEG-1000, PEG-1500；The antioxidant is antioxidant 1010, resists
At least one of oxygen agent 168；The antistatic agent is one of ethoxylated alkylamine class.
This production technology uses blending and modifying, and the heat resistance and moistened surface tension of the medical printing substrate of PET can be improved,
Reduce the production cost of substrate.
The utility model has the advantages that
Compared with prior art, the present invention having the advantage that
1, in conjunction with the economy of polyethylene terephthalate and poly- 2,6- (ethylene naphthalate) heat resistance and
Transesterification occurs in extruder and forms the stronger block copolymer of heat resistance, comparison for high barrier, the two when melt blending
Existing BOPET has significant heat resistance.
2, the addition of polyvinyl alcohol and alkaline-earth metal talcum powder advantageously reduces the resistivity of substrate, as dispersing agent to mention
The flatness of high substrate.
3, exempt from double drawing process and greatly reduce equipment operating cost, so that production technology is simpler easy, also reduce
The production cost of substrate.Existing BOPET is compared, moistened surface tension with higher is not necessarily to corona.
Specific embodiment
The present invention is explained further with reference to embodiments, but embodiment does not limit in any form the present invention.
The raw material sources and equipment selected in following embodiment are as follows:
Polyethylene terephthalate: technical grade Yizheng Chemical Fibre Co., Ltd.；
Poly- 2,6- (ethylene naphthalate): Di Ren company, technical grade Japan；
Titanium dioxide: technical grade Town in Shanghai opens Industrial Co., Ltd.；
Polyethylene glycol: technical grade Hubei is new and Chemical Co., Ltd.；
Talcum powder: technical grade Hubei Zhong Liao Chemical Co., Ltd.；
Antioxidant: technical grade Shanghai Kai Yin Chemical Co., Ltd.；
Antistatic agent: Linan Dechang, technical grade Hangzhou electrostatic Science and Technology Ltd.；
Existing BOPET: product Hangzhou and suitable Science and Technology Ltd.；
Double screw extruder: the Nanjing TDS-65D Jie Ente electromechanics Co., Ltd；
Calender: the Nanjing D-450 Jie Ente electromechanics Co., Ltd.
Embodiment 1
By 20Kg polyethylene terephthalate, 20Kg titanium dioxide, 4Kg polyethylene glycol (PEG-1000), 4Kg talcum
Powder, 0.2Kg antioxidant 1010,0.3Kg antistatic agent (the cruel amine of ethyoxyl laurel) uniformly mix, then in 75 DEG C of progress vacuum
5 hours dry, so that water content is lower than 400 ppm, extrusion prepares functional agglomerate.Again by 100Kg polyethylene terephthalate
The poly- 2,6-naphthalenedicarboxylic acid glycol ester of ester, 20Kg, 40Kg functional agglomerate are sufficiently mixed, in the double screw extruder that can be vacuum-evacuated
Middle carry out plastifying fusion, 9 area's heating temperature of extruder screw are respectively as follows: 250 DEG C, and 250 DEG C, 260 DEG C, 270 DEG C, 270 DEG C,
280 DEG C, 280 DEG C, 280 DEG C, 285 DEG C.It is identical that hanger-style die two sides temperature is set are as follows: 270 DEG C；Five Qu Xiangtong of centre
Are as follows: 265 DEG C；Film lip temperature is 260 DEG C, is extruded into the uniform diaphragm with a thickness of 100 μm, press polish of the diaphragm at 20 DEG C
It is extruded to shape among roller.Roller speed is 28 m/min in calender, and the velocity rate of central roll and lower roll is 1:1.1, is then passed through
Trimming, traction, winding become product.
Embodiment 2
By 20Kg polyethylene terephthalate, 20Kg titanium dioxide, 5Kg polyethylene glycol (PEG-1500), 5Kg talcum
Powder, 0.5Kg irgasfos 168,0.4Kg antistatic agent (the cruel amine of ethyoxyl laurel) uniformly mix, then dry in 85 DEG C of progress vacuum
Dry 6 hours, so that water content is lower than 400 ppm, extrusion prepared functional agglomerate.Again by 100Kg polyethylene terephthalate,
The poly- 2,6-naphthalenedicarboxylic acid glycol ester of 20Kg, 50Kg functional agglomerate are sufficiently mixed, in the double screw extruder that can be vacuum-evacuated
Plastifying fusion is carried out, 9 area's heating temperature of extruder screw is respectively as follows: 260 DEG C, and 265 DEG C, 280 DEG C 285 DEG C, 285 DEG C,
290 DEG C, 290 DEG C, 290 DEG C, 290 DEG C.It is identical that hanger-style die two sides temperature is set are as follows: 270 DEG C；Five Qu Xiangtong of centre
Are as follows: 275 DEG C；Film lip temperature is 270 DEG C, is extruded into the uniform diaphragm with a thickness of 100 μm, press polish of the diaphragm at 25 DEG C
It is extruded to shape among roller.Roller speed is 30 m/min in calender, and the velocity rate of central roll and lower roll is 1:1.2, is then passed through
Trimming, traction, winding become product.
Embodiment 3
By 20Kg polyethylene terephthalate, 24Kg titanium dioxide, 6Kg polyethylene glycol (PEG-1000), 6Kg talcum
Powder, 0.8Kg antioxidant 1010,1.0Kg antistatic agent (the cruel amine of ethyoxyl laurel) uniformly mix, then in 80 DEG C of progress vacuum
6 hours dry, so that water content is lower than 400 ppm, extrusion prepares functional agglomerate.Again by 100Kg polyethylene terephthalate
The poly- 2,6-naphthalenedicarboxylic acid glycol ester of ester, 30Kg, 40Kg functional agglomerate are sufficiently mixed, in the double screw extruder that can be vacuum-evacuated
Middle carry out plastifying fusion, 9 area's heating temperature of extruder screw are respectively as follows: 250 DEG C, and 250 DEG C, 270 DEG C, 270 DEG C, 275
DEG C, 280 DEG C, 280 DEG C, 280 DEG C, 290 DEG C.It is identical that hanger-style die two sides temperature is set are as follows: 280 DEG C；Intermediate five area's phases
Together are as follows: 265 DEG C；Film lip temperature is 260 DEG C, is extruded into the uniform diaphragm with a thickness of 100 μm, pressure of the diaphragm at 30 DEG C
It is extruded to shape among smooth roll.Roller speed is 35 m/min in calender, and the velocity rate of central roll and lower roll is 1:1.2, is then passed through
Trimming, traction, winding are crossed as product.
Embodiment 4
By 20Kg polyethylene terephthalate, 24Kg titanium dioxide, 4Kg polyethylene glycol (PEG-1500), 6Kg talcum
Powder, 1.0Kg irgasfos 168,0.2Kg antistatic agent (the cruel amine of ethyoxyl laurel) uniformly mix, then dry in 85 DEG C of progress vacuum
Dry 5 hours, so that water content is lower than 400 ppm, extrusion prepared functional agglomerate.Again by 100Kg polyethylene terephthalate,
The poly- 2,6-naphthalenedicarboxylic acid glycol ester of 40Kg, 50Kg functional agglomerate are sufficiently mixed, in the double screw extruder that can be vacuum-evacuated
Plastifying fusion is carried out, 9 area's heating temperature of extruder screw is respectively as follows: 255 DEG C, and 255 DEG C, 260 DEG C, 270 DEG C, 280 DEG C,
285 DEG C, 285 DEG C, 290 DEG C, 290 DEG C.It is identical that hanger-style die two sides temperature is set are as follows: 275 DEG C；Five Qu Xiangtong of centre
Are as follows: 270 DEG C；Film lip temperature is 265 DEG C, forms the uniform diaphragm with a thickness of 100 μm, diaphragm is in 25 DEG C of felt wrapped roll
Between be extruded to shape.Roller speed is 30 m/min in calender, and the velocity rate of central roll and lower roll is 1:1.3, then by trimming,
Traction, winding become product.
1 ~ 4 product of embodiment and existing BOPET (Hangzhou and suitable Science and Technology Ltd.) main indicator test comparison, as a result
It is shown in Table 1.
Table 1
Claims (4)
1. a kind of production technology of the medical printing substrate of PET, it is characterised in that include the following steps:
1) functional agglomerate is prepared
Polyethylene terephthalate, titanium dioxide, polyethylene glycol, talcum powder, antioxidant and antistatic agent are uniformly mixed,
Dry, extrusion obtains functional agglomerate；
2) mixing squeezes out
Polyethylene terephthalate, poly- 2,6-naphthalenedicarboxylic acid glycol ester and functional agglomerate are uniformly mixed, are added to flat
Row double screw extruder, fusion plastification are squeezed out through die head, into forming uniform diaphragm in calender；
3) finished product is squeezed out
Diaphragm obtains the medical printing substrate of finished product PET by trimming, traction, winding；
Wherein: polyethylene terephthalate described in step 1), titanium dioxide, polyethylene glycol, talcum powder, antioxidant and anti-
The mass ratio of electrostatic agent is 1:1~1.2: 0.2~0.3:0.2~0.3:0.01~0.05:0.01~0.05；
The water content of functional agglomerate is lower than 400 ppm in step 1)；
The mass ratio of polyethylene terephthalate, poly- 2,6- (ethylene naphthalate) and functional agglomerate is 1 in step 2:
0.2~0.3: 0.4~0.5；
Diaphragm thickness is 95~105 μm in step 2；Fusion plastification temperature described in step 2 is 250~290 DEG C, die head
Extrusion temperature is 260~280 DEG C.
2. the production technology of the medical printing substrate of PET according to claim 1, which is characterized in that in step 2 in calender
Roller speed is 28~35 m/min, and the velocity rate of central roll and lower roll is 1:1.1~1.3.
3. the medical printing substrate of PET that the production technology of the medical printing substrate of PET as claimed in claim 1 or 2 is prepared.
4. according to the medical printing substrate of PET that claim 3 is stated, which is characterized in that the polyethylene glycol is PEG-1000, PEG-
At least one of 1500；The antioxidant is at least one of antioxidant 1010, irgasfos 168；The antistatic agent is
One of ethoxylated alkylamine class.
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| CN201510859119.9A CN106810826B (en) | 2015-11-30 | 2015-11-30 | A kind of medical printing substrate of PET and its production technology |
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| CN201510859119.9A CN106810826B (en) | 2015-11-30 | 2015-11-30 | A kind of medical printing substrate of PET and its production technology |
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| CN106810826B true CN106810826B (en) | 2019-10-15 |
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| EP3775040A4 (en) * | 2018-03-26 | 2021-12-22 | Octal, Inc. | Polyethylene terephthalate alloy having talc |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024716A (en) * | 2006-02-23 | 2007-08-29 | 东丽纤维研究所（中国）有限公司 | Method and apparatus for continuous producing functional polyester |
| CN101759966A (en) * | 2008-11-24 | 2010-06-30 | 东丽纤维研究所（中国）有限公司 | Polyester composition and application thereof |
| CN101879800A (en) * | 2010-06-08 | 2010-11-10 | 湖北恒泰橡塑有限公司 | High-barrier medical film |
| CN102816414A (en) * | 2012-04-09 | 2012-12-12 | 青岛海尔新材料研发有限公司 | High heat-resistant fire-retardant reinforced polyethylene terephthalate (PET) composition and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101549492B1 (en) * | 2011-12-28 | 2015-09-03 | 제일모직주식회사 | Polyester Resin Composition Having Yellowing Resistance and High Impact Strength |
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2015
- 2015-11-30 CN CN201510859119.9A patent/CN106810826B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024716A (en) * | 2006-02-23 | 2007-08-29 | 东丽纤维研究所（中国）有限公司 | Method and apparatus for continuous producing functional polyester |
| CN101759966A (en) * | 2008-11-24 | 2010-06-30 | 东丽纤维研究所（中国）有限公司 | Polyester composition and application thereof |
| CN101879800A (en) * | 2010-06-08 | 2010-11-10 | 湖北恒泰橡塑有限公司 | High-barrier medical film |
| CN102816414A (en) * | 2012-04-09 | 2012-12-12 | 青岛海尔新材料研发有限公司 | High heat-resistant fire-retardant reinforced polyethylene terephthalate (PET) composition and preparation method thereof |
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Effective date of registration: 20230420 Address after: 221000 West side of the Pearl River Road, Zone B, Xinyi Economic and Technological Development Zone, Xuzhou, Jiangsu Province (No. 19, the Pearl River Road) Patentee after: Jiangsu Huaxin High-tech Materials Co.,Ltd. Address before: 221416 No.189 Daqiao East Road, Xinyi City, Xuzhou City, Jiangsu Province Patentee before: JIANGSU HUAXIN NEW MATERIAL Co.,Ltd. |
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