CN108329666A - A kind of PPS expanded materials and preparation method thereof - Google Patents
A kind of PPS expanded materials and preparation method thereof Download PDFInfo
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- CN108329666A CN108329666A CN201810236125.2A CN201810236125A CN108329666A CN 108329666 A CN108329666 A CN 108329666A CN 201810236125 A CN201810236125 A CN 201810236125A CN 108329666 A CN108329666 A CN 108329666A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0028—Use of organic additives containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/08—Supercritical fluid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Abstract
It is composed of the following components by weight the present invention relates to a kind of PPS expanded materials and preparation method thereof：PPS is 60 parts 80 parts, and foaming agent is 10 parts 20 parts, and modified micaceous powder is 20 parts 30 parts, and antioxidant is 0.1 part 0.5 part, and anti-UV agent is 0.1 part 0.3 part.The application uses secondary reduction technology, the PPS foamed materials with bimodal cell structure are made, foaming PPS materials prepared by the application are due to there is the presence of bimodal cell, compared to common foamed material PPS, it has smaller abscess-size, caused stress concentration also smaller makes foaming PPS materials have higher toughness.
Description
Technical field
The invention belongs to technical field of polymer materials, a kind of PPS expanded materials and preparation method thereof are particularly related to.
Background technology
Polyethylene terephthalate (PPS) is a kind of important expanded material, is widely used in household electrical appliance, machinery is matched
The fields such as part, office appliance and Communication Equipment.PPS expanded materials have many advantages, such as light, nontoxic, odorless, good water absorption.
But the toughness and ageing-resistant performance of the PPS expanded materials of the prior art is not high, this causes to PPS expanded materials
The influence of application range, in order to improve the toughness and ageing-resistant performance of PPS expanded materials, this field researcher has carried out largely
Research, applicant obtains a kind of toughness and the excellent PPS expanded materials of ageing-resistant performance by the production of this field for many years,
Application for extending PPS expanded materials has very important realistic meaning.
Invention content
The object of the present invention is to provide a kind of PPS expanded materials and preparation method thereof, and the PPS to solve the prior art foams
The not high problem of the toughness and ageing-resistant performance of material.
The present invention is achieved by the following technical solutions：
A kind of PPS expanded materials, it is composed of the following components by weight：
The foaming agent is supercritical carbon dioxide.
The grain size of the modified micaceous powder is -10000 mesh of 5000 mesh.
The modified micaceous powder is through peroxocarbonate coupling agent AC-201 treated modified micaceous powder.
The antioxidant be three (2,4- di-t-butyl) phenyl-phosphites (, four [β-(3,5- di-t-butyl -4- hydroxy benzenes
Base) propionic acid] pentaerythritol ester or 1,3,5- trimethyls -2,4, one kind in 6- (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene
Or several mixing.
The anti-UV agent is UV770 or UV531.
The preparation method of any of the above-described kind of PPS expanded material, includes the following steps：
(1) 60 parts -80 parts of PPS, 10 parts of -20 parts of supercritical carbon dioxides, 20 parts -30 parts modified micaceous powder, 0.1 are weighed
- 0.5 part of antioxidant of part and 0.1 part -0.3 part anti-UV agent；
(2) it squeezes out PPS, modified micaceous powder, antioxidant, anti-UV agent input double screw extruder to obtain pellet；
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 10 parts -20 parts overcritical two
Carbonoxide, being heated to 280-300 DEG C makes it be molten condition, adjusts pressure in 18-20MPa, reacts 2-4h, be depressurized to 12-
14MPa keeps 1-2h, then decrease temperature and pressure to obtain PPS expanded materials to normal temperature and pressure.
Double screw extruder in the step (2) includes six humidity provinces sequentially arranged, area's temperature 240~260
DEG C, two 280~300 DEG C of area's temperature, three 280~300 DEG C of area's temperature, four 280~300 DEG C of area's temperature, five area's temperature 280~300
DEG C, six 280~300 DEG C of area's temperature, 280~300 DEG C of head temperature, 200~280r/min of screw speed.
Beneficial effects of the present invention have：
1, modified micaceous powder is added in the application in PPS, can improve the pore density of PPS materials.
2, the application uses secondary reduction technology, the PPS foamed materials with bimodal cell structure is made, specific mechanism is such as
Under：First time pressure reduction causes hypersaturated state and induces first time cell nucleation, and radius is more than the nuclei of bubbles of critical radius
Continued growth increases, and the nuclei of bubbles that radius is less than critical radius is then reduced and disappeared.In second of pressure reduction, it is centered around
Second of cell nucleation occurs for the unfoamed region around abscess, therefore forms bimodal bubble in the PPS poromerics in the present invention
Pore structure.
3, foaming PPS materials prepared by the application compare common foamed material PPS, it has due to there is the presence of bimodal cell
There is a smaller abscess-size, caused stress concentration also smaller makes foaming PPS materials have higher toughness.
4, the addition of anti-UV agent improves the ageing-resistant performance of foaming PPS materials.
Specific implementation mode
Carry out the technical solution that the present invention will be described in detail by the following examples, embodiment below is merely exemplary, only
It can be used for explanation and illustration technical scheme of the present invention, and be not to be construed as the limitation to technical solution of the present invention.
Raw material used in various embodiments of the present invention is as follows：
PPS (model 1150A), Polyplastics；Supercritical carbon dioxide, Harbin Essen Biology science and technology；Mica powder, Shi Jia
Village Ma Yue mica powders factory；Anti- UV agent (model UV770, UV531), German BASF；Antioxidant (model Irganox168,
Irganox1010, Irganox1330), Switzerland's Ciba.
Test equipment used in the present invention is as follows：
ZSK30 type double screw extruders, German W＆P companies；JL-1000 type tensile testing machines, the wide just experiment instrument in Guangzhou
Device company produces；HTL900-T-5B type injection (mo(u)lding) machines, the production of Hai Tai plastics machineries Co., Ltd；XCJ-500 type shock-testings
Machine, the production of Chengde testing machine factory；QT-1196 type tester for elongation, Dongguan City Gao Tai detecting instruments Co., Ltd；QD-GJS-
B12K type homogenizers, Beijing perseverance Order instrument and meter Co., Ltd；101A-1 type digital display Electric heat ovens, the holy glad science in Shanghai
Instrument Ltd..
The application provides a kind of PPS expanded materials, composed of the following components by weight：
The foaming agent is supercritical carbon dioxide.
The grain size of the modified micaceous powder is -10000 mesh of 5000 mesh, and preferably, the modified micaceous powder is through percarbonic acid
Ester coupling agent AC-201 treated modified micaceous powder.
The antioxidant be BASF AG three (2,4- di-t-butyls) phenyl-phosphites (abbreviation Irganox168),
Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters (abbreviation Irganox1010) or 1,3,5- trimethyls-
The mixing of one or more of 2,4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene (abbreviation Irganox1330).
The anti-UV agent is UV770 or UV531.
The application also provides the preparation method of PPS expanded materials, includes the following steps：
(1) 60 parts -80 parts of PPS, 10 parts of -20 parts of supercritical carbon dioxides, 20 parts -30 parts modified micaceous powder, 0.1 are weighed
- 0.5 part of antioxidant of part and 0.1 part -0.3 part anti-UV agent；
(2) it squeezes out PPS, modified micaceous powder, antioxidant, anti-UV agent input double screw extruder to obtain pellet；
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 10 parts -20 parts overcritical two
Carbonoxide, being heated to 280-300 DEG C makes it be molten condition, adjusts pressure in 18-20MPa, reacts 2-4h, be depressurized to 12-
14MPa keeps 1-2h, then decrease temperature and pressure to obtain PPS expanded materials to normal temperature and pressure.
Double screw extruder in the step (2) includes six humidity provinces sequentially arranged, area's temperature 240~260
DEG C, two 280~300 DEG C of area's temperature, three 280~300 DEG C of area's temperature, four 280~300 DEG C of area's temperature, five area's temperature 280~300
DEG C, six 280~300 DEG C of area's temperature, 280~300 DEG C of head temperature, 200~280r/min of screw speed.
Embodiment 1
(1) weigh 60 parts PPS, 10 parts of supercritical carbon dioxides, 20 parts of modified micaceous powder, 0.1 part of Irganox168,
0.1 part of UV531.
(2) PPS, modified micaceous powder, antioxidant, anti-UV agent are put into double screw extruder extruding pelletization.
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 10 parts of overcritical titanium dioxides
Carbon, being heated to 280 DEG C makes it be molten condition, adjusts pressure in 18MPa, reacts 2h, be depressurized to 12MPa, keep 1h, then cool down
It is depressurized to normal temperature and pressure, obtains PPS expanded materials P1.
Each area's temperature of double screw extruder and screw speed wherein in step (2) are respectively；One 240 DEG C of area's temperature, two
280 DEG C of area's temperature, three 280 DEG C of area's temperature, four 280 DEG C of area's temperature, five 280 DEG C of area's temperature, six 280 DEG C of area's temperature, head temperature
280 DEG C, screw speed 200r/min.
Embodiment 2
(1) weigh 80 parts PPS, 20 parts of supercritical carbon dioxides, 30 parts of modified micaceous powder, 0.2 part of Irganox1010,
0.2 part of Irganox1330,0.1 part of Irganox168,0.3 part of UV770；
(2) PPS, modified micaceous powder, antioxidant, anti-UV agent are put into double screw extruder extruding pelletization.
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 20 parts of overcritical titanium dioxides
Carbon, being heated to 300 DEG C makes it be molten condition, adjusts pressure in 20MPa, reacts 4h, be depressurized to 14MPa, keep 2h, then cool down
It is depressurized to normal temperature and pressure, obtains PPS expanded materials P2.
Each area's temperature of double screw extruder and screw speed wherein in step (2) are respectively；One 260 DEG C of area's temperature, two
300 DEG C of area's temperature, three 300 DEG C of area's temperature, four 300 DEG C of area's temperature, five 300 DEG C of area's temperature, six 300 DEG C of area's temperature, head temperature
300 DEG C, screw speed 280r/min.
Embodiment 3
(1) weigh 70 parts PPS, 15 parts of supercritical carbon dioxides, 25 parts of modified micaceous powder, 0.2 part of Irganox1010,
0.1 part of Irganox1330,0.2 part of UV770；
(2) PPS, modified micaceous powder, antioxidant, anti-UV agent are put into double screw extruder extruding pelletization.
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 15 parts of overcritical titanium dioxides
Carbon, being heated to 290 DEG C makes it be molten condition, adjusts pressure in 19MPa, reacts 3h, be depressurized to 13MPa, keep 1.5h, then drop
Temperature drop is depressed into normal temperature and pressure, obtains PPS expanded materials P3.
Each area's temperature of double screw extruder and screw speed wherein in step (2) are respectively；One 250 DEG C of area's temperature, two
290 DEG C of area's temperature, three 290 DEG C of area's temperature, four 290 DEG C of area's temperature, five 290 DEG C of area's temperature, six 290 DEG C of area's temperature, head temperature
290 DEG C, screw speed 240r/min.
Embodiment 4
(1) weigh 75 parts PPS, 18 parts of supercritical carbon dioxides, 28 parts of modified micaceous powder, 0.2 part of Irganox1010,
0.1 part of Irganox1330,0.1 part of UV531；
(2) PPS, modified micaceous powder, antioxidant, anti-UV agent are put into double screw extruder extruding pelletization.
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 12 parts of overcritical titanium dioxides
Carbon, being heated to 280 DEG C makes it be molten condition, adjusts pressure in 20MPa, reacts 2h, be depressurized to 12MPa, keep 1h, then cool down
It is depressurized to normal temperature and pressure, obtains PPS expanded materials P4.
Each area's temperature of double screw extruder and screw speed wherein in step (2) are respectively；One 245 DEG C of area's temperature, two
285 DEG C of area's temperature, three 285 DEG C of area's temperature, four 285 DEG C of area's temperature, five 285 DEG C of area's temperature, six 285 DEG C of area's temperature, head temperature
285 DEG C, screw speed 245r/min.
Embodiment 5
(1) weigh 65 parts PPS, 17 parts of supercritical carbon dioxides, 24 parts of modified micaceous powder, 0.3 part of Irganox1010,
0.1 part of Irganox1330,0.2 part of UV770；
(2) PPS, modified micaceous powder, antioxidant, anti-UV agent are put into double screw extruder extruding pelletization.
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 10 parts of overcritical titanium dioxides
Carbon, being heated to 290 DEG C makes it be molten condition, adjusts pressure in 20MPa, reacts 3h, be depressurized to 12MPa, keep 1h, then cool down
It is depressurized to normal temperature and pressure, obtains PPS expanded materials P5.
Each area's temperature of double screw extruder and screw speed wherein in step (2) are respectively；One 245 DEG C of area's temperature, two
285 DEG C of area's temperature, three 285 DEG C of area's temperature, four 285 DEG C of area's temperature, five 285 DEG C of area's temperature, six 285 DEG C of area's temperature, head temperature
285 DEG C, screw speed 240r/min.
Comparative example 1
(1) 70 parts of PPS, 12 parts of blowing agent ACs, 0.3 part of Irganox1010,0.1 part of Irganox1330 is weighed to mix and stir
It mixes uniformly, obtains mixture；
(2) by the mixture extruding pelletization obtained in step (1) to get to the expandable pellet D1 of PPS.
(3) D1 is evenly distributed in closed rigid die, reacts 4h at 10MPa, 80 DEG C of environment, takes out and cool and solidify
Obtain PPS foamed products.
Preferably, the double screw extruder in the step (2) includes six humidity provinces sequentially arranged, area's temperature
245 DEG C, two 285 DEG C of area's temperature, three 285 DEG C of area's temperature, four 285 DEG C of area's temperature, five 285 DEG C of area's temperature, six 285 DEG C of area's temperature,
285 DEG C of head temperature, screw speed 240r/min.
Performance test：
Batten test, test data is made with injection molding machine in PPS foamed materials prepared by above-described embodiment 1-5 and comparative example 1
Such as following table：
Note：The standard of 1000h degradation references is GB/T1843-2008.
As can be seen from the above table, it can also be seen that the toughness and ageing-resistant performance of embodiment 1-5 will be better than pair from table
Ratio 1.For extending the application field of PPS foamed materials, have very important significance.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And deformation, the scope of the present invention are extremely equally limited by appended claims.
Claims (7)
1. a kind of PPS expanded materials, which is characterized in that composed of the following components by weight：
The foaming agent is supercritical carbon dioxide.
2. PPS expanded materials according to claim 1, which is characterized in that the grain size of the modified micaceous powder is 5000 mesh-
10000 mesh.
3. PPS expanded materials according to claim 2, which is characterized in that the modified micaceous powder is through peroxocarbonate idol
Join agent AC-201 treated modified micaceous powder.
4. PPS expanded materials according to claim 1, which is characterized in that the antioxidant is three (2,4- di-t-butyls)
Phenyl-phosphite (, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters or 1,3,5- trimethyls -2,4,
The mixing of one or more of 6- (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene.
5. PPS expanded materials according to claim 1, which is characterized in that the anti-UV agent is UV770 or UV531.
6. the preparation method of any PPS expanded materials in the claims 1 to 5, which is characterized in that include the following steps：
(1) weigh 60 parts -80 parts PPS, 10 parts of -20 parts of supercritical carbon dioxides, 20 parts -30 parts modified micaceous powder, 0.1 part -
0.5 part of antioxidant and 0.1 part -0.3 part anti-UV agent；
(2) it squeezes out PPS, modified micaceous powder, antioxidant, anti-UV agent input double screw extruder to obtain pellet；
(3) pellet obtained in step (2) is evenly distributed in closed rigid die, is passed through 10 parts of -20 parts of overcritical titanium dioxides
Carbon, being heated to 280-300 DEG C makes it be molten condition, adjusts pressure in 18-20MPa, reacts 2-4h, be depressurized to 12-14MPa,
1-2h, then decrease temperature and pressure is kept to obtain PPS expanded materials to normal temperature and pressure.
7. the preparation method of PPS expanded materials according to claim 6, which is characterized in that double spiral shells in the step (2)
Bar extruder includes six humidity provinces sequentially arranged, 240~260 DEG C of area's temperature, two 280~300 DEG C of area's temperature, three area's temperature
280~300 DEG C of degree, four 280~300 DEG C of area's temperature, five 280~300 DEG C of area's temperature, six 280~300 DEG C of area's temperature, head temperature
280~300 DEG C of degree, 200~280r/min of screw speed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110776663A (en) * | 2019-11-19 | 2020-02-11 | 况太荣 | Preparation method of poly (butylene succinate)/cellulose nanocrystal composite microporous foam material with bimodal open pore structure |
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| CN107118556A (en) * | 2017-06-21 | 2017-09-01 | 安徽江淮汽车集团股份有限公司 | A kind of PPS composites and preparation method thereof |
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| CN110776663A (en) * | 2019-11-19 | 2020-02-11 | 况太荣 | Preparation method of poly (butylene succinate)/cellulose nanocrystal composite microporous foam material with bimodal open pore structure |
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