CN102816386A - High-flowability thermoplastic elastomer and preparation method thereof - Google Patents
High-flowability thermoplastic elastomer and preparation method thereof Download PDFInfo
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- CN102816386A CN102816386A CN2012103394612A CN201210339461A CN102816386A CN 102816386 A CN102816386 A CN 102816386A CN 2012103394612 A CN2012103394612 A CN 2012103394612A CN 201210339461 A CN201210339461 A CN 201210339461A CN 102816386 A CN102816386 A CN 102816386A
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
-
- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a high-flowability thermoplastic elastomer and a preparation method thereof. The high-flowability thermoplastic elastomer is prepared from the following components in parts by weight: 100 parts of polypropylene/polypropylene butyl ester intermediates, 2-8 parts of polypropylene (PP), 2-8 parts of styrene-ethylene-butylene-styrene (SEBS), 2-8 parts of compatilizers, 8-12 parts of plasticizers, 0.1-0.5 part of antioxygen, 0.1-0.5 part of light stabilizer and 2-8 parts of cross-linking agents. The elastomer has the advantages of high intermiscibility, low volatility, low leachability, high thermal ability index, cold-resistant waterproof drawing, ultraviolet resistance, difficulty in oxidization and volatility, excellent electric performance, high light stability and heat stability in sheet, low volatility, low pollution performance, no-toxicity or low-toxicity, low cost and easy acquisition; and the elastomer is suitable for decoration materials for automobiles, sealing strip materials for refrigerators and decoration and sealing materials for passenger trains.
Description
Technical field
The present invention relates to process for preparation of thermoplastic elastomer, relate in particular to a kind of high workability thermoplastic elastomer and preparation method thereof.
Background technology
Development along with society; The raising of people's level of consumption, human consumer's standard of living has also improved thereupon, and meanwhile polypropylene material steps into huge numbers of families; And popularizing along with humanity concept; And the formation of novel harmonious society, update polypropylene material, be very important with the needs that reach various test safeties.
Thermoplastic elastomer has snappiness, ageing-resistant, oil-proofness; And it is easy to process; Environmental protection, nontoxic, hand feel and drape are widely used, and Chinese patent CN 101058656 A disclose the thermoplastic elastomer method, but consider that this method can not absorb ultraviolet ray; Meet light and be prone to defectives such as aging, it is slightly not enough that prior art just seems.
Summary of the invention
The present invention provides a kind of high workability thermoplastic elastomer, solves the ultraviolet ray that can absorb in the existing thermoplastic elastic material, meets light and is prone to technical problems such as aging, the poor and complex process of flowability.
The present invention adopts following technical scheme:
The high workability thermoplastic elastomer is made up of following raw materials according, with the parts by weight representation:
Polypropylene/polypropylene butyl ester midbody 100;
PP 2-8；
SEBS 2-8；
Compatilizer 2-8;
Softening agent 8-12;
Oxidation inhibitor 0.1-0.5;
Photostabilizer 0.1-0.5;
Linking agent 2-8.
As a kind of optimal technical scheme of the present invention: wherein, said Vestolen PP 7052 is one or more mixtures among RB31D or the TB52L, and melting index is 5-15g/10min.
As a kind of optimal technical scheme of the present invention: said compatilizer is a Vestolen PP 7052 maleic anhydride compatilizer.
As a kind of optimal technical scheme of the present invention: said softening agent adopts one or more mixtures among trimellitic acid Off-Shoot-O or the DEDB.
As a kind of optimal technical scheme of the present invention: said oxidation inhibitor adopts one or more mixtures in 1010 or 168.
As a kind of optimal technical scheme of the present invention: said photostabilizer adopts one or more mixtures among HS-944 or the UV-531.
As a kind of optimal technical scheme of the present invention: said linking agent adopts one or more mixtures in resol or the calcium stearate.
Prepare the method for high workability thermoplastic elastomer, the steps include:
The first step: earlier PBA, initiator are immersed among the PP, polymerization at a certain temperature forms the midbody that PP comprises PBA, takes by weighing Vestolen PP 7052, SEBS, compatilizer, softening agent, oxidation inhibitor, linking agent, photostabilizer according to weight fraction ratio mentioned above again;
Second step: above-mentioned raw materials was put into high-speed mixer and mixing 3-5 minute, various compositions are uniformly dispersed;
The 3rd step: mixed material of second step is rendered in the twin screw extruder that length-to-diameter ratio is 30:1; Extruder temperature is set to: a district: 100-140 ℃, and two district 140-180 ℃, three district 160-190 ℃; Four district 180-200 ℃; Five district 190-220 ℃, rotating speed 120-300r/min, extruding pelletization.
As a kind of optimal technical scheme of the present invention: Vestolen PP 7052 selects RB31D to have high impact, and outstanding formability and weather stability satisfy the requirement to high bending springback rate and shock strength, flowability excellence and with low cost;
As a kind of optimal technical scheme of the present invention: the compatilizer PP-g-MAH of selection can increase substantially the bounding force of mineral fillers such as Vestolen PP 7052 and glass, talcum powder, mica.
As a kind of optimal technical scheme of the present invention: the softening agent trimellitic acid Off-Shoot-O molecular weight of selection is big, viscosity, and flash-point height, low, the anti-extraction of volatility, anti-migration have better thermotolerance, low-temperature pliability, anti-electroconductibility.
As a kind of optimal technical scheme of the present invention: the photostabilizer UV-531 of selection can prevent or delay macromolecular material generation photoaging effect.
All raw materials that the present invention uses are the existing of common knowledge, and method of use and function are prior art.
A kind of high workability thermoplastic elastomer according to the invention adopts above technical scheme compared with prior art, has following technique effect: 1, this elastomerics has that intermiscibility is good, volatility is low, exudative low, thermally-stabilised index high, cold-resistant water-fast extraction, UV resistant, is difficult for oxidation and volatilization, excellent electrical properties; 2, use sheet material system light stability of the present invention and Heat stability is good, volatility is low, and contaminative is little, and nontoxic or low toxicity is cheap and easy to get; 3, be applicable to automobile decoration material, electricrefrigerator sealing strip material, passenger train decoration and sealing material.
Embodiment
Below set forth content of the present invention in further detail through embodiment.
Embodiment 1:
The first step: take by weighing various raw materials according to weight fraction ratio hereinafter described
Vestolen PP 7052 (PP)/Vestolen PP 7052 butyl ester (PBA) midbody 100;
PP RB31D, Korea S's Samsung 5;
Grand day plastic cement ltd 5 of SEBS;
Compatilizer PP-g-MAH, Down macromolecular material ltd 5;
Softening agent trimellitic acid Off-Shoot-O, sincerity softening agent ltd 10;
Antioxidant 1010, Suzhou Qian Chang commerce and trade ltd 0.2;
Photostabilizer UV-531, the grand chemical ltd 0.2 of Nantong prestige;
Linking agent resol, the bright chemical industry in Wuxi ltd 4
Second step: earlier PBA, initiator are immersed among the PP, polymerization at a certain temperature forms the midbody that PP comprises PBA, takes by weighing Vestolen PP 7052, SEBS, compatilizer, softening agent, oxidation inhibitor, linking agent, photostabilizer according to weight fraction ratio mentioned above again;
The 3rd step: above-mentioned raw materials was put into high-speed mixer and mixing 3-5 minute, various compositions are uniformly dispersed;
The 4th step: mixed material of second step is rendered in the twin screw extruder that length-to-diameter ratio is 30:1; Extruder temperature is set to: a district: 100-140 ℃, and two district 140-180 ℃, three district 160-190 ℃; Four district 180-200 ℃; Five district 190-220 ℃, rotating speed 120-300r/min, extruding pelletization.
Test performance:
Embodiment 1 is carried out toughness test; Toughness test is according to ISO180: the result sees table one:
| Shore hardness (A) | Tensile strength/MPa | Tear elongation/% | Tear strength/(kN/m) | Compression set (70 ℃, 22h)/% | Oil-proofness (70 ℃, 22h)/% | Purposes | |
| Embodiment 1 | 85 | 6.3 | - | 27 | 24 | 29 | - |
| PACREL-7265 | 65 | 4.8 | 340 | 32.2 | - | - | Handle for tool |
| PACREL-7465 | 65 | 6.4 | 180 | 29 | 33 | 48 | The grease proofing sheath of automobile |
| PACREL-7475 | 75 | 7．3 | 220 | 25.4 | 35 | 13 | Sealing material |
Table one
The foregoing description just is used for content of the present invention is set forth, rather than restriction, therefore in implication suitable with claims of the present invention and any change in the scope, all should think to be included in the scope of claims.
Claims (8)
1. high workability thermoplastic elastomer and preparation method thereof, it is characterized in that: its composition with the parts by weight representation is:
Polypropylene/polypropylene butyl ester midbody 100;
PP 2-8；
SEBS 2-8；
Compatilizer 2-8;
Softening agent 8-12;
Oxidation inhibitor 0.1-0.5;
Photostabilizer 0.1-0.5;
Linking agent 2-8.
2. a kind of high workability thermoplastic elastomer according to claim 1 and preparation method thereof is characterized in that: said Vestolen PP 7052 is one or more mixtures among RB31D or the TB52L, and melting index is 5-15g/10min.
3. a kind of high workability thermoplastic elastomer according to claim 1 and preparation method thereof is characterized in that: said compatilizer is a Vestolen PP 7052 maleic anhydride compatilizer.
4. a kind of high workability thermoplastic elastomer according to claim 1 and preparation method thereof is characterized in that: said softening agent adopts one or more mixtures among trimellitic acid Off-Shoot-O or the DEDB.
5. a kind of high workability thermoplastic elastomer according to claim 1 and preparation method thereof is characterized in that: said oxidation inhibitor adopts one or more mixtures in 1010 or 168.
6. a kind of high workability thermoplastic elastomer according to claim 1 and preparation method thereof is characterized in that: said photostabilizer adopts one or more mixtures among HS-944 or the UV-531.
7. a kind of high workability thermoplastic elastomer according to claim 1 and preparation method thereof is characterized in that: said linking agent adopts one or more mixtures in resol or the calcium stearate.
8. method for preparing the said high workability thermoplastic elastomer of claim 1 is characterized in that step is:
The first step: earlier PBA, initiator are immersed among the PP, polymerization at a certain temperature forms the midbody that PP comprises PBA, takes by weighing Vestolen PP 7052, SEBS, compatilizer, softening agent, oxidation inhibitor, linking agent, photostabilizer according to weight fraction ratio mentioned above again;
Second step: above-mentioned raw materials was put into high-speed mixer and mixing 3-5 minute, various compositions are uniformly dispersed;
The 3rd step: mixed material of second step is rendered in the twin screw extruder that length-to-diameter ratio is 30:1; Extruder temperature is set to: a district: 100-140 ℃, and two district 140-180 ℃, three district 160-190 ℃; Four district 180-200 ℃; Five district 190-220 ℃, rotating speed 120-300r/min, extruding pelletization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103394612A CN102816386A (en) | 2012-09-14 | 2012-09-14 | High-flowability thermoplastic elastomer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103394612A CN102816386A (en) | 2012-09-14 | 2012-09-14 | High-flowability thermoplastic elastomer and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102816386A true CN102816386A (en) | 2012-12-12 |
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| CN2012103394612A Withdrawn CN102816386A (en) | 2012-09-14 | 2012-09-14 | High-flowability thermoplastic elastomer and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109337153A (en) * | 2018-08-09 | 2019-02-15 | 南京聚隆科技股份有限公司 | A kind of automobile batteries shell cover material and preparation method thereof |
| CN110591263A (en) * | 2019-08-21 | 2019-12-20 | 安徽万朗磁塑股份有限公司 | Low-temperature-resistant elastomer material for door seal of refrigerating device and application of low-temperature-resistant elastomer material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962454A (en) * | 2009-07-23 | 2011-02-02 | 倪平 | Heat-conducting and electricity-conducting modified plastic material and preparation method |
| CN102276915A (en) * | 2011-07-18 | 2011-12-14 | 余姚市中发工程塑料有限公司 | Plastic special for optical fiber junction box and preparation method thereof |
-
2012
- 2012-09-14 CN CN2012103394612A patent/CN102816386A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962454A (en) * | 2009-07-23 | 2011-02-02 | 倪平 | Heat-conducting and electricity-conducting modified plastic material and preparation method |
| CN102276915A (en) * | 2011-07-18 | 2011-12-14 | 余姚市中发工程塑料有限公司 | Plastic special for optical fiber junction box and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 俞强等: "聚丙烯/聚丙烯酸丁酯热塑性弹性体及其对聚丙烯的增韧作用", 《合成橡胶工业》 * |
| 徐红岩: "聚丙烯/聚丙烯酸丁酯热塑性弹性体的研制", 《中国塑料》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109337153A (en) * | 2018-08-09 | 2019-02-15 | 南京聚隆科技股份有限公司 | A kind of automobile batteries shell cover material and preparation method thereof |
| CN110591263A (en) * | 2019-08-21 | 2019-12-20 | 安徽万朗磁塑股份有限公司 | Low-temperature-resistant elastomer material for door seal of refrigerating device and application of low-temperature-resistant elastomer material |
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Application publication date: 20121212 |