CN103881235A - Stress whitening-resistant reinforced toughened polypropylene compound and preparation method thereof - Google Patents
Stress whitening-resistant reinforced toughened polypropylene compound and preparation method thereof Download PDFInfo
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- CN103881235A CN103881235A CN201410067401.9A CN201410067401A CN103881235A CN 103881235 A CN103881235 A CN 103881235A CN 201410067401 A CN201410067401 A CN 201410067401A CN 103881235 A CN103881235 A CN 103881235A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention belongs to the technical field of high polymer materials, and in particular relates to a stress whitening-resistant reinforced toughened polypropylene compound and a preparation method thereof. The stress whitening-resistant reinforced toughened polypropylene compound is prepared by carrying out fusion, extrusion and granulation on polypropylene resin, filling master batch, an SBS elastomer, a chain segment accelerant, a chain segment binding agent, filling master batch, an antioxidant and a processing agent through a double-screw extruder. A coupling agent and a polypropylene graft are added in the filling master batch; the polypropylene resin is tightly combined with an inorganic filler interface so that the polypropylene resin and the inorganic filler interface are not easy to peel; in the formula, the toughness of the polypropylene compound is improved through the SBS elastomer; the chain segment accelerant and the chain segment binding agent play the role of a bridge, then the molecular chains are connected and the chain segments are formed into a network structure, so that movement of the inorganic filler is greatly constrained and the prepared polypropylene compound can have good rigidity and toughness besides favorable stress whitening resistance.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly a kind of proof stress turns white and strengthens tenacity-increased profax mixture and preparation method thereof.
Background technology
Polypropylene is one of five large general-purpose plastics, in industrial sector widespread uses such as chemical industry, building, light industry, automobile, household electrical appliances, packings.But along with the development of industry, more and more higher to the requirement of material property, common polypropylene must pass through modification, gives its high-performance, can satisfy the demand.Due to polypropylene self structure feature, cause polypropylene to be in use vulnerable to the impact of the external force such as stretching, bending, impact and occur stress whitening phenomenon, when serious, also can affect the Performance and quality of product, so in Application Areass such as some household electrical appliance, toy, automobile component and power tools, need polypropylene to there is good rigidity and toughness and the excellent proof stress performance of turning white simultaneously.
In prior art, people are by adding some macromolecular materials to solve polyacrylic toughness and stress whitening problem.For example, patent CN101709124A discloses a kind of anti-folding stress whitening resistant polypropylene alkene material, improve the toughness of material and the proof stress performance of turning white by add elastomerics and homemade anti-stress whitening master batch in high impact resistance polypropylene base material, although described material demonstrates very high shock resistance, but Co-polypropylene consumption is too many, cause the rigidity of material to decline seriously, while proof stress turns white neither be very outstanding.Patent CN101058655A discloses that a kind of proof stress turns white and stress cracking filled polypropylene material, improve stress whitening by polyethylene, but what it adopted is block copolymerization polypropylene, and Co-polypropylene consumption is too much, and it is not very desirable causing the proof stress of the material effect of turning white.
Summary of the invention
The object of this invention is to provide a kind of proof stress and turn white and strengthen tenacity-increased profax mixture, this polypropylene composite not only has the good proof stress performance of turning white, but also has good rigidity and toughness concurrently.
Another object of the present invention is to strengthen the preparation method of tenacity-increased profax mixture in order to provide above-mentioned proof stress to turn white.
Object of the present invention can be achieved through the following technical solutions:
A kind of proof stress turns white and strengthens tenacity-increased profax mixture, it is characterized in that: by weight percentage,
Comprise following base material component:
This proof stress turns white to strengthen in tenacity-increased profax mixture and also contains oxidation inhibitor and processing aid, and the weight ratio of oxidation inhibitor and base material component total amount is 0.2-4:100; The weight ratio of processing aid and base material component total amount is 0.2-4:100.
Described SBS elastomerics is styrene-butadiene-styrene block copolymer, and the elastomeric melting index scope of this SBS is 0.1-100g/10min.
Described segment promotor is zinc oxide.
Described segment bonding agent is one or more the mixture in oxidation diisopropylbenzene(DIPB), benzoyl peroxide, methylethyl ketone peroxide, peroxy dicarbonate, the benzoyl peroxide tert-butyl ester or dual-tert-butyl superoxide diisopropyl benzene.
Described oxidation inhibitor is Hinered phenols antioxidant or phosphite ester kind antioxidant.Preferably, described Hinered phenols antioxidant is four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester, and described phosphite ester kind antioxidant is three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
Described filler parent granule is prepared by the following method,
The processing aid of the Graft Polypropylene of the coupling agent of the mineral filler of the acrylic resin of 15-40wt%, 50-75wt%, 5-10wt%, 5-10wt% and 0.2-2wt% is melt extruded to granulation by twin screw extruder to be formed.
Mineral filler in described filler parent granule is one or more the mixture in talcum powder, calcium carbonate, mica, wollastonite, barium sulfate, kaolin, aluminium hydroxide, magnesium hydroxide, carbon black and the clay of median size 0.1-15 micron; Described coupling agent is one or more mixture of epoxy silane coupling agent, amino silicane coupling agent or titanate coupling agent; Described Graft Polypropylene is toxilic acid, methylene-succinic acid, vinylformic acid, maleic anhydride, glycidyl acrylate and polypropylene grafted forming, and the percentage of grafting of this Graft Polypropylene is 0.3-1.2%.
Described acrylic resin is one or both the mixture in Co-polypropylene or homo-polypropylene, and this polyacrylic melting index scope is 0.1-100g/10min; Described processing aid is Zinic stearas or calcium stearate.
Above-mentioned proof stress turns white and strengthens the preparation method of tenacity-increased profax mixture, comprises the steps:
(1) weigh various base material raw materials by proportioning;
(2) acrylic resin, SBS elastomerics, segment promotor, filling master batch, segment bonding agent, oxidation inhibitor and processing aid are added in twin screw extruder, at 190-230 ℃, melt extrude granulation.The rotating speed of described twin screw extruder is 50-400 rev/min.
The invention has the beneficial effects as follows:
1, described proof stress turns white to strengthen in tenacity-increased profax mixture and has added filling master batch, coupling agent in this filler parent granule component and Graft Polypropylene are combined closely acrylic resin and mineral filler interface, two-phase is difficult for peeling off, again by this filler parent granule melt pelletization again, increase the toughness of polypropylene composite and the proof stress performance of turning white.
2, in turning white enhancing tenacity-increased profax mixture, proof stress added SBS elastomerics, improve toughness, segment promotor and segment bonding agent are brought into play function served as bridge, connected molecular chain, segment framework is become to network structure, so greatly fettered the movement of mineral filler, the polypropylene composite that makes to make can have good proof stress turn white performance and rigidity and toughness preferably.The quality of the polypropylene composite of process modification is improved, and has also widened Application Areas.
3, described proof stress turns white and strengthens that the preparation method of tenacity-increased profax mixture is simple, raw material is easy to get, and cost is low, and the controllability of complete processing is strong.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Raw material: the melting index of acrylic resin is 10g/10min; The elastomeric melting index of SBS is 7g/10min.
Embodiment 1
(1) preparation of filling master batch
The polypropylene grafted maleic anhydride of the amino silicane coupling agent of the acrylic resin of 28 weight parts, 60 weight part talcum powder mineral fillers (median size is 5 microns), 8 weight parts, 10 weight parts (melting index is that 80g/10min, percentage of grafting are 0.8%) and the processing aid agent Zinic stearas of 0.4 weight part are mixed, through screw extrusion press, melt extrude granulation and form, the processing temperature of forcing machine is 190-230 ℃.
(2) preparing proof stress turns white and strengthens tenacity-increased profax mixture:
Press row parts by weight and take each base material component:
The acrylic resin of 61 weight parts
The SBS elastomerics of 5 weight parts
The filler parent granule of 30 weight parts
The segment bonding agent oxidation diisopropylbenzene(DIPB) of 1 weight part
The zinc oxide of 3 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
Its preparation technology is as follows:
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing, obtains proof stress and turns white and strengthen tenacity-increased profax mixture.Its performance test parameter is as shown in table 1.
Embodiment 2
(1) preparation of filling master batch
The polypropylene grafted vinylformic acid of the epoxy silane coupling agent of the acrylic resin of 30 weight parts, 60 weight part talcum powder mineral fillers (median size is 5 microns), 10 weight parts, 10 weight parts (melting index is that 80g/10min, percentage of grafting are 0.8%) and the processing aid calcium stearate of 0.3 weight part are mixed, through screw extrusion press, melt extrude granulation and form, the processing temperature of forcing machine is 190-230 ℃.
(2) preparing proof stress turns white and strengthens tenacity-increased profax mixture:
Press row parts by weight and take each base material component:
The acrylic resin of 57 weight parts
The SBS elastomerics of 5 weight parts
The filler parent granule of 30 weight parts
The segment bonding agent benzoyl peroxide of 5 weight parts
The zinc oxide of 3 weight parts
The irgasfos 168 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
Its preparation technology is as follows:
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing, obtains proof stress and turns white and strengthen tenacity-increased profax mixture.Its performance test parameter is as shown in table 1.
Embodiment 3
(1) preparation of filling master batch is with embodiment 1.
(2) preparing proof stress turns white and strengthens tenacity-increased profax mixture:
Press row parts by weight and take each base material component:
The acrylic resin of 42 weight parts
The SBS elastomerics of 20 weight parts
The filler parent granule of 30 weight parts
The segment bonding agent oxidation diisopropylbenzene(DIPB) of 5 weight parts
The zinc oxide of 3 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
Its preparation technology is as follows:
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing, obtains proof stress and turns white and strengthen tenacity-increased profax mixture.Its performance test parameter is as shown in table 1.
Embodiment 4
(1) preparation of filling master batch is with embodiment 1.
(2) preparing proof stress turns white and strengthens tenacity-increased profax mixture:
Press row parts by weight and take each base material component:
The acrylic resin of 46 weight parts
The SBS elastomerics of 20 weight parts
The filler parent granule of 30 weight parts
The segment bonding agent peroxy dicarbonate of 1 weight part
The zinc oxide of 3 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
Its preparation technology is as follows:
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing, obtains proof stress and turns white and strengthen tenacity-increased profax mixture.Its performance test parameter is as shown in table 1.
Embodiment 5
(1) preparation of filling master batch is with embodiment 1.
(2) preparing proof stress turns white and strengthens tenacity-increased profax mixture:
Press row parts by weight and take each base material component:
The acrylic resin of 53 weight parts
The SBS elastomerics of 10 weight parts
The filler parent granule of 30 weight parts
The segment bonding agent oxidation diisopropylbenzene(DIPB) of 4 weight parts
The zinc oxide of 3 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
Its preparation technology is as follows:
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing, obtains proof stress and turns white and strengthen tenacity-increased profax mixture.Its performance test parameter is as shown in table 1.
Comparative example 1
Press row parts by weight and take each component:
The acrylic resin of 70 weight parts
The SBS elastomerics of 10 weight parts
The talcum powder (mean diameter is 5 microns) of 20 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing.Performance test parameter is as shown in table 1.
Comparative example 2
Press row parts by weight and take each component:
The acrylic resin of 65 weight parts
The SBS elastomerics of 10 weight parts
The talcum powder (mean diameter is 5 microns) of 20 weight parts
The coupling agent of 5 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing.Performance test parameter is as shown in table 1.
Comparative example 3
Press row parts by weight and take each component:
The acrylic resin of 56 weight parts
The SBS elastomerics of 10 weight parts
The talcum powder (mean diameter is 5 microns) of 20 weight parts
The Graft Polypropylene (melting index is that 80g/10min, percentage of grafting are 0.8%) of 5 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing.Performance test parameter is as shown in table 1.
Comparative example 4
Press row parts by weight and take each component:
The acrylic resin of 60 weight parts
The SBS elastomerics of 10 weight parts
The filler parent granule of 30 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing.Performance test parameter is as shown in table 1.
Comparative example 5
Press row parts by weight and take each component:
The acrylic resin of 66 weight parts
The filler parent granule of 30 weight parts
The segment bonding agent of 4 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing.Performance test parameter is as shown in table 1.
Comparative example 6
Press row parts by weight and take each component:
The acrylic resin of 53 weight parts
The SBS elastomerics of 10 weight parts
The talcum powder (mean diameter is 5 microns) of 20 weight parts
The Graft Polypropylene (melting index is that 80g/10min, percentage of grafting are 0.8%) of 5 weight parts
The coupling agent of 5 weight parts
The segment bonding agent of 4 weight parts
The zinc oxide of 3 weight parts
The antioxidant 1010 of 0.2 weight part
The processing aid Zinic stearas of 0.2 weight part;
After the above-mentioned each component taking is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 210 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing.Performance test parameter is as shown in table 1.
Test result:
The sign of the acrylic resin composite property in above-described embodiment and comparative example: socle girder notched Izod impact strength is pressed ISO180 standard testing; Modulus in flexure is pressed ISO178 standard testing;
The proof stress test of turning white: under approximately 23 ℃ of conditions of envrionment temperature, mixture is prepared into the square plate of 100*100*3mm, bear heavy 500g, diameter is that the steel ball of 50mm is from the drop test of 300mm height, the side's of observation plate surface stress degree occurring of turning white, stress whitening is by being 5 grades to difference well: without, slight, less, serious and seriously.
Table 1 performance test parameter:
Can find out from the performance test results of above embodiment and comparative example, the proof stress making in the present embodiment anti-stress whitening performance that strengthens tenacity-increased profax mixture of turning white has obtained obvious improvement, and rigidity and toughness are also significantly improved.
Claims (9)
1. proof stress turns white and strengthens a tenacity-increased profax mixture, it is characterized in that: by weight percentage, comprise following base material component,
This proof stress turns white to strengthen in tenacity-increased profax mixture and also contains oxidation inhibitor and processing aid, and the weight ratio of oxidation inhibitor and base material component total amount is 0.2-4:100; The weight ratio of processing aid and base material component total amount is 0.2-4:100.
2. proof stress according to claim 1 turns white and strengthens tenacity-increased profax mixture, it is characterized in that: described SBS elastomerics is styrene-butadiene-styrene block copolymer, and the elastomeric melting index scope of this SBS is 0.12-100g/10min.
3. proof stress according to claim 1 turns white and strengthens tenacity-increased profax mixture, it is characterized in that: described segment promotor is zinc oxide; Described segment bonding agent is one or more the mixture in oxidation diisopropylbenzene(DIPB), benzoyl peroxide, methylethyl ketone peroxide, peroxy dicarbonate, the benzoyl peroxide tert-butyl ester or dual-tert-butyl superoxide diisopropyl benzene.
4. proof stress according to claim 1 turns white and strengthens tenacity-increased profax mixture, it is characterized in that: described oxidation inhibitor is Hinered phenols antioxidant or phosphite ester kind antioxidant.
5. proof stress according to claim 1 turns white and strengthens tenacity-increased profax mixture, it is characterized in that: described filler parent granule is prepared by the following method,
The processing aid of the Graft Polypropylene of the coupling agent of the mineral filler of the acrylic resin of 15-40wt%, 50-75wt%, 5-10wt%, 5-10wt% and 0.2-2wt% is melt extruded to granulation by twin screw extruder to be formed.
6. proof stress according to claim 5 turns white and strengthens tenacity-increased profax mixture, it is characterized in that: described mineral filler is one or more the mixture in talcum powder, calcium carbonate, mica, wollastonite, barium sulfate, kaolin, aluminium hydroxide, magnesium hydroxide, carbon black and the clay of median size 0.1-15 micron; Described coupling agent is one or more mixture of epoxy silane coupling agent, amino silicane coupling agent or titanate coupling agent; Described Graft Polypropylene is toxilic acid, methylene-succinic acid, vinylformic acid, maleic anhydride, glycidyl acrylate and polypropylene grafted forming, and the percentage of grafting of this Graft Polypropylene is 0.3-1.2%.
7. proof stress turns white and strengthens tenacity-increased profax mixture according to claim 1 or 5, it is characterized in that: described acrylic resin is one or both the mixture in Co-polypropylene or homo-polypropylene, and this polyacrylic melting index scope is 0.1-100g/10min; Described processing aid is Zinic stearas or calcium stearate.
8. prepare proof stress claimed in claim 1 and turn white and strengthen a method for tenacity-increased profax mixture, comprise the steps:
(1) weigh various raw materials by proportioning;
(2) acrylic resin, SBS elastomerics, segment promotor, filling master batch, segment bonding agent, oxidation inhibitor and processing aid are added in twin screw extruder, at 190-230 ℃, melt extrude granulation.
9. the proof stress of preparing according to claim 8 turns white and strengthens the method for tenacity-increased profax mixture, it is characterized in that: the rotating speed of described twin screw extruder is 50-400 rev/min.
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| CN108329598A (en) * | 2017-01-19 | 2018-07-27 | 合肥杰事杰新材料股份有限公司 | A kind of proof stress whitens PP composite material and preparation method thereof |
| CN112574508A (en) * | 2020-12-10 | 2021-03-30 | 湖南省达琪新材料有限公司 | Filling reinforced master batch, preparation method thereof and reinforced polypropylene material |
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Cited By (6)
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| CN104558836A (en) * | 2014-12-22 | 2015-04-29 | 上海普利特复合材料股份有限公司 | Scratching-resistant polypropylene composite material capable of resisting stress whitening and preparation method thereof |
| CN105949608A (en) * | 2016-05-31 | 2016-09-21 | 江苏金发科技新材料有限公司 | Polypropylene composite material with excellent stress buffering and absorbing and preparation method thereof |
| CN108329598A (en) * | 2017-01-19 | 2018-07-27 | 合肥杰事杰新材料股份有限公司 | A kind of proof stress whitens PP composite material and preparation method thereof |
| CN107312243A (en) * | 2017-08-03 | 2017-11-03 | 慈溪市赛斯特金属制品有限公司 | A kind of anti-polypropylene whiting auxiliary agent and its application |
| CN107652535A (en) * | 2017-08-30 | 2018-02-02 | 北京汽车研究总院有限公司 | Automotive bumper material and preparation method thereof, bumper and there is its vehicle |
| CN112574508A (en) * | 2020-12-10 | 2021-03-30 | 湖南省达琪新材料有限公司 | Filling reinforced master batch, preparation method thereof and reinforced polypropylene material |
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