CN107652636A - A kind of PET new materials - Google Patents
A kind of PET new materials Download PDFInfo
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- CN107652636A CN107652636A CN201710864141.1A CN201710864141A CN107652636A CN 107652636 A CN107652636 A CN 107652636A CN 201710864141 A CN201710864141 A CN 201710864141A CN 107652636 A CN107652636 A CN 107652636A
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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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- 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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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The invention discloses a kind of PET new materials, it is related to new material technology field, PET is dried 12 20 hours under 115 118 DEG C of vacuum, then acidifying nano-bentonite is dried 35 hours at 100 DEG C and 110 DEG C successively respectively with alkali starch again, then PET, acidifying nano-bentonite and alkali starch are added in high speed mixer and stir 10 15min, obtain compound, compound is added in double screw extruder again, extruder temperature is 250 255 DEG C, residence time is 3 3.5min, blending basis is granulated, and is produced；PET new materials prepared by the present invention not only have good resistance to pyrolytic, while have good ageing-resistant performance.
Description
Technical field
The invention belongs to new material technology field, and in particular to a kind of PET new materials.
Background technology
PET（PET）Material is a kind of plastics of excellent combination property, in wider temperature range
Interior to have excellent physical and mechanical properties, for long-term use of temperature up to 130 DEG C, electrical insulating property is excellent, or even in high-temperature high-frequency
Under, its electrical property is still preferable.Because its is cheap, so being used as fiber, film, polyester bottles etc. extensively.Existing PET materials
Although some performances are improved, there is problem in crystal property, hot property, mechanical properties and cause resistance to old in it
The defects such as the property changed is poor, heat distortion temperature is low.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of PET new materials.
The present invention is achieved by the following technical solutions：
A kind of PET new materials, PET is dried into 12-20 hours under 115-118 DEG C of vacuum, then will be acidified nano-bentonite again
3-5 hours are dried at 100 DEG C and 110 DEG C successively respectively with alkali starch, then by PET, acidifying nano-bentonite and alkalescence
Starch, which is added in high speed mixer, stirs 10-15min, obtains compound, then compound is added in double screw extruder,
Extruder temperature is 250-255 DEG C, residence time 3-3.5min, and basis is blended and is granulated, produces；
The PET, acidifying nano-bentonite and alkali starch mixing quality ratio are 80-90:5-8:3-5.
Further, the PET is total to by terephthalic acid (TPA), ethanedioic acid, ethylene glycol, Octacosanol, plant five kinds of monomers of black alcohol
It is poly- to form, wherein, terephthalic acid (TPA), ethanedioic acid, ethylene glycol, neopentyl glycol, the weight ratio of isobide are 50-70:2-6:30-
40:10-15:3-5。
Further, the acidifying nano-bentonite preparation method is：
Nano-bentonite is distributed in deionized water, the nano-bentonite suspension that mass fraction is 15% is configured to, then adopts
Nano-bentonite pH of suspension is adjusted to 3.5 with the ethanedioic acid solution that mass fraction is 5%, is incubated 2 hours at 75 DEG C, then
Filtered, dry to constant weight, produce at 100 DEG C.
Further, the alkali starch preparation method is：
By 3:1 mass ratio is uniformly admixed together with soybean starch by cornstarch, obtains mixing starch, and then mixing is formed sediment
Powder is evenly spread in deionized water, obtains starch mixed liquor, then uses mass fraction to be adjusted for 5% potassium hydroxide solution
Starch mixed solution pH to 10.0, then at 40 DEG C, 2.5 hours are incubated, is then being filtered, 6- is handled under microwave
8min, room temperature is then naturally cooled to, produced.
Further, the power of the microwave is 350-500W.
Further, the PET new material applications are in manufacture PET bottle base.
The present invention has advantages below compared with prior art：The present invention by by PET with acidifying nano-bentonite with alkalescence
Starch blending prepare PET new materials, by be acidified between nano-bentonite, alkali starch and PET molecules can be formed it is stronger
Chemical bonding acts on, and by being acidified the active function of nano-bentonite particle, can effectively prevent the activity of PET strands,
It is set to be not susceptible to thermally decompose, so as to effectively raise PET heat decomposition temperature, and common nano-bentonite particle is in PET
Middle deployment conditions are poor, can only obtain intercalation exfoliated composite material, and the present invention passes through the crystal property to PET systems and non-etc.
Warm crystallization kinetics is studied, and by being acidified to nano-bentonite particle, then cooperates with the work of alkali starch particle
With so that PET systems cold crystallization temperature rises, and fusing point reduces, while degree of supercooling reduces, and illustrates to be acidified nano-bentonite and alkalescence
Amylum grain serves heterogeneous nucleating effect, promotes PET crystallizations to improve PET material form and aspect, while be good for energy to molecule in PET systems
Tool increases significantly, and can resist higher external world effect, effectively raises the resistance to ag(e)ing of PET new materials
Energy.
Embodiment
Embodiment 1
A kind of PET new materials, PET is dried 12 hours under 115 DEG C of vacuum, then acidifying nano-bentonite formed sediment with alkalescence again
Powder is dried 3 hours at 100 DEG C and 110 DEG C successively respectively, is then added to PET, acidifying nano-bentonite and alkali starch
10min is stirred in high speed mixer, obtains compound, then compound is added in double screw extruder, extruder temperature 250
DEG C, residence time 3min, basis is blended and is granulated, produces；
The PET, acidifying nano-bentonite and alkali starch mixing quality ratio are 80:5:3.
Further, the PET is total to by terephthalic acid (TPA), ethanedioic acid, ethylene glycol, Octacosanol, plant five kinds of monomers of black alcohol
It is poly- to form, wherein, terephthalic acid (TPA), ethanedioic acid, ethylene glycol, neopentyl glycol, the weight ratio of isobide are 50:2:30:10:3.
Further, the acidifying nano-bentonite preparation method is：
Nano-bentonite is distributed in deionized water, the nano-bentonite suspension that mass fraction is 15% is configured to, then adopts
Nano-bentonite pH of suspension is adjusted to 3.5 with the ethanedioic acid solution that mass fraction is 5%, is incubated 2 hours at 75 DEG C, then
Filtered, dry to constant weight, produce at 100 DEG C.
Further, the alkali starch preparation method is：
By 3:1 mass ratio is uniformly admixed together with soybean starch by cornstarch, obtains mixing starch, and then mixing is formed sediment
Powder is evenly spread in deionized water, obtains starch mixed liquor, then uses mass fraction to be adjusted for 5% potassium hydroxide solution
Starch mixed solution pH to 10.0, then at 40 DEG C, 2.5 hours are incubated, is then being filtered, is being handled under microwave
6min, room temperature is then naturally cooled to, produced.
Further, the power of the microwave is 350W.
Further, the PET new material applications are in manufacture PET bottle base.
Embodiment 2
A kind of PET new materials, PET is dried 20 hours under 118 DEG C of vacuum, then acidifying nano-bentonite formed sediment with alkalescence again
Powder is dried 5 hours at 100 DEG C and 110 DEG C successively respectively, is then added to PET, acidifying nano-bentonite and alkali starch
15min is stirred in high speed mixer, obtains compound, then compound is added in double screw extruder, extruder temperature 255
DEG C, residence time 3.5min, basis is blended and is granulated, produces；
The PET, acidifying nano-bentonite and alkali starch mixing quality ratio are 90: 8: 5.
Further, the PET is total to by terephthalic acid (TPA), ethanedioic acid, ethylene glycol, Octacosanol, plant five kinds of monomers of black alcohol
It is poly- to form, wherein, terephthalic acid (TPA), ethanedioic acid, ethylene glycol, neopentyl glycol, the weight ratio of isobide are 70: 6:40:15:
5。
Further, the acidifying nano-bentonite preparation method is：
Nano-bentonite is distributed in deionized water, the nano-bentonite suspension that mass fraction is 15% is configured to, then adopts
Nano-bentonite pH of suspension is adjusted to 3.5 with the ethanedioic acid solution that mass fraction is 5%, is incubated 2 hours at 75 DEG C, then
Filtered, dry to constant weight, produce at 100 DEG C.
Further, the alkali starch preparation method is：
By 3:1 mass ratio is uniformly admixed together with soybean starch by cornstarch, obtains mixing starch, and then mixing is formed sediment
Powder is evenly spread in deionized water, obtains starch mixed liquor, then uses mass fraction to be adjusted for 5% potassium hydroxide solution
Starch mixed solution pH to 10.0, then at 40 DEG C, 2.5 hours are incubated, is then being filtered, is being handled under microwave
8min, room temperature is then naturally cooled to, produced.
Further, the power of the microwave is 500W.
Further, the PET new material applications are in manufacture PET bottle base.
Embodiment 3
A kind of PET new materials, PET is dried 15 hours under 116 DEG C of vacuum, then acidifying nano-bentonite formed sediment with alkalescence again
Powder is dried 4 hours at 100 DEG C and 110 DEG C successively respectively, is then added to PET, acidifying nano-bentonite and alkali starch
12min is stirred in high speed mixer, obtains compound, then compound is added in double screw extruder, extruder temperature 252
DEG C, residence time 3.2min, basis is blended and is granulated, produces；
The PET, acidifying nano-bentonite and alkali starch mixing quality ratio are 85:6:4.
Further, the PET is total to by terephthalic acid (TPA), ethanedioic acid, ethylene glycol, Octacosanol, plant five kinds of monomers of black alcohol
It is poly- to form, wherein, terephthalic acid (TPA), ethanedioic acid, ethylene glycol, neopentyl glycol, the weight ratio of isobide are 60:5:35:11:4.
Further, the acidifying nano-bentonite preparation method is：
Nano-bentonite is distributed in deionized water, the nano-bentonite suspension that mass fraction is 15% is configured to, then adopts
Nano-bentonite pH of suspension is adjusted to 3.5 with the ethanedioic acid solution that mass fraction is 5%, is incubated 2 hours at 75 DEG C, then
Filtered, dry to constant weight, produce at 100 DEG C.
Further, the alkali starch preparation method is：
By 3:1 mass ratio is uniformly admixed together with soybean starch by cornstarch, obtains mixing starch, and then mixing is formed sediment
Powder is evenly spread in deionized water, obtains starch mixed liquor, then uses mass fraction to be adjusted for 5% potassium hydroxide solution
Starch mixed solution pH to 10.0, then at 40 DEG C, 2.5 hours are incubated, is then being filtered, is being handled under microwave
7min, room temperature is then naturally cooled to, produced.
Further, the power of the microwave is 400W.
Further, the PET new material applications are in manufacture PET bottle base.
Comparative example 1：Differed only in embodiment 1 and do not add acidifying nano-bentonite.
Comparative example 2：Differed only in embodiment 1 and do not add alkali starch.
Comparative example 3：Differed only in embodiment 1 and acidifying nano-bentonite is replaced with into common nano-bentonite, by alkali
Property starch replaces with untreated cornstarch.
Experiment：
The PET bottle base of same size will be made in embodiment and comparative example, according to GB/T164222-1999 standards, by embodiment
With comparative example sample in the sample rack of flashing light anti-aging test case, xenon source exposure test is carried out, ageing time is 30 days, so
Take out and tested afterwards, experimental condition：6KW water-cooled xenon lamps, operating temperature are 52 ± 5 DEG C；Blackboard temperature is 50 ± 5 DEG C；Work
Make room relative humidity as 55 ± 5%；Rainfall cycle 20min/112min（The rain time of rain time/not）；Radiation of light source intensity
500±5W/m²：
Mechanics Performance Testing:Extension test is carried out to the sample after aging with reference to GB/T10402/1A-2006：
Table 1
| Tensile strength MPa before aging | Aging post-tensioning intensity MPa | |
| Embodiment 1 | 66.3 | 60.4 |
| Embodiment 2 | 65.8 | 59.8 |
| Embodiment 3 | 66.1 | 60.1 |
| Comparative example 1 | 62.7 | 51.3 |
| Comparative example 2 | 63.5 | 53.8 |
| Comparative example 3 | 58.2 | 40.1 |
| Control group | 54.7 | 28.3 |
Control group is the bottle base of same size made of common PET；
As can be seen from Table 1, the PET new material ageing-resistant performances that prepared by the present invention are more superior.
After the PET bottle base that same size is made in embodiment and comparative example is commonly dried at 60 DEG C, with thermal weight loss point
Analyzer, carry out detecting the temperature that test specimen weight loss 50% needs：
Table 2
| The temperature that weight loss 50% needs/DEG C | |
| Embodiment 1 | 532 |
| Embodiment 2 | 528 |
| Embodiment 3 | 535 |
| Comparative example 1 | 463 |
| Comparative example 2 | 451 |
| Comparative example 3 | 418 |
| Control group | 381 |
Control group is the bottle base of same size made of common PET；
As can be seen from Table 2, the resistance to heat decomposition temperature of PET new materials that prepared by the present invention is significantly improved.
Claims (6)
1. a kind of PET new materials, it is characterised in that PET is dried into 12-20 hours under 115-118 DEG C of vacuum, then again by acid
Change nano-bentonite and dry 3-5 hours at 100 DEG C and 110 DEG C successively respectively with alkali starch, then by PET, acidifying nanometer
Bentonite and alkali starch, which are added in high speed mixer, stirs 10-15min, obtains compound, then compound is added to double
In screw extruder, extruder temperature is 250-255 DEG C, residence time 3-3.5min, and basis is blended and is granulated, produces；
The PET, acidifying nano-bentonite and alkali starch mixing quality ratio are 80-90:5-8:3-5.
2. a kind of PET new materials as claimed in claim 1, it is characterised in that the PET is by terephthalic acid (TPA), ethanedioic acid, second
Glycol, Octacosanol, plant five kinds of monomer copolymerizations of black alcohol form, wherein, terephthalic acid (TPA), ethanedioic acid, ethylene glycol, neopentyl glycol,
The weight ratio of isobide is 50-70:2-6:30-40:10-15:3-5.
3. a kind of PET new materials as claimed in claim 1, it is characterised in that the acidifying nano-bentonite preparation method is：
Nano-bentonite is distributed in deionized water, the nano-bentonite suspension that mass fraction is 15% is configured to, then adopts
Nano-bentonite pH of suspension is adjusted to 3.5 with the ethanedioic acid solution that mass fraction is 5%, is incubated 2 hours at 75 DEG C, then
Filtered, dry to constant weight, produce at 100 DEG C.
4. a kind of PET new materials as claimed in claim 1, it is characterised in that the alkali starch preparation method is：
By 3:1 mass ratio is uniformly admixed together with soybean starch by cornstarch, obtains mixing starch, and then mixing is formed sediment
Powder is evenly spread in deionized water, obtains starch mixed liquor, then uses mass fraction to be adjusted for 5% potassium hydroxide solution
Starch mixed solution pH to 10.0, then at 40 DEG C, 2.5 hours are incubated, is then being filtered, 6- is handled under microwave
8min, room temperature is then naturally cooled to, produced.
5. a kind of PET new materials as claimed in claim 4, it is characterised in that the power of the microwave is 350-500W.
6. a kind of PET new materials as claimed in claim 1, it is characterised in that the PET new material applications are in manufacture PET bottle
Base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864141.1A CN107652636A (en) | 2017-09-22 | 2017-09-22 | A kind of PET new materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864141.1A CN107652636A (en) | 2017-09-22 | 2017-09-22 | A kind of PET new materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107652636A true CN107652636A (en) | 2018-02-02 |
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ID=61130832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710864141.1A Pending CN107652636A (en) | 2017-09-22 | 2017-09-22 | A kind of PET new materials |
Country Status (1)
| Country | Link |
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| CN (1) | CN107652636A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760037A (en) * | 2008-12-23 | 2010-06-30 | 金发科技股份有限公司 | Completely degraded plant powder modified thermoplastics composite material and preparation method thereof |
| CN104893261A (en) * | 2015-05-27 | 2015-09-09 | 铜陵方正塑业科技有限公司 | Stretching-resistant food bag and preparation method thereof |
| CN105885112A (en) * | 2016-05-30 | 2016-08-24 | 蚌埠市维光塑胶制品有限公司 | Environment-friendly plastic bag |
-
2017
- 2017-09-22 CN CN201710864141.1A patent/CN107652636A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760037A (en) * | 2008-12-23 | 2010-06-30 | 金发科技股份有限公司 | Completely degraded plant powder modified thermoplastics composite material and preparation method thereof |
| CN104893261A (en) * | 2015-05-27 | 2015-09-09 | 铜陵方正塑业科技有限公司 | Stretching-resistant food bag and preparation method thereof |
| CN105885112A (en) * | 2016-05-30 | 2016-08-24 | 蚌埠市维光塑胶制品有限公司 | Environment-friendly plastic bag |
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Application publication date: 20180202 |
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