CN103694564A - PP/PMMA (polypropylene/polymethyl methacrylate) alloy material and preparation method thereof - Google Patents
PP/PMMA (polypropylene/polymethyl methacrylate) alloy material and preparation method thereof Download PDFInfo
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 101
- 229920003229 poly(methyl methacrylate) Polymers 0.000 title claims abstract description 88
- 239000004926 polymethyl methacrylate Substances 0.000 title claims abstract description 88
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 83
- 239000000956 alloy Substances 0.000 title claims abstract description 59
- -1 polypropylene Polymers 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000000314 lubricant Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 21
- 239000004698 Polyethylene Substances 0.000 claims description 16
- 229920000573 polyethylene Polymers 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 239000003112 inhibitor Substances 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 150000008064 anhydrides Chemical class 0.000 claims description 9
- 238000011160 research Methods 0.000 claims description 9
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 8
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
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- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 3
- CAPNUXMLPONECZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-2-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=C(O)C(C(C)(C)C)=C1 CAPNUXMLPONECZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003963 antioxidant agent Substances 0.000 abstract description 3
- 230000003078 antioxidant effect Effects 0.000 abstract description 3
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- 231100000252 nontoxic Toxicity 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
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- 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
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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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
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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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
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- 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
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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
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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
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
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- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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Abstract
The invention discloses a PP/PMMA (polypropylene/polymethyl methacrylate) alloy material and a preparation method thereof. The PP/PMMA alloy material comprises the following components in percentage by weight: 70%-90% of PP, 2%-15% of PMMA, 2%-15% of a compatilizer, 0.1%-0.3% of an antioxidant and 0.1%-5% of a lubricant. According to the preparation method, the PP is taken as a basic body and added with the PMMA, so that the alloy material is cooperatively improved in hardness, scratch resistance and normal-temperature impact resistance and is good in glossiness. Meanwhile, the compatilizer and the antioxidant are added in the PP/PMMA alloy material, so that the PMMA is prevented from being degraded at high temperature, two incompatible polymers of crystalline PP and non-crystalline PMMA are compatible with each other, and a stable structure is formed.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to a kind of PP/PMMA alloy material and preparation method thereof.
Background technology
Polypropylene (PP) is translucent Crystalline plastics, have plasticity-, and odorless is nontoxic.The highly crystalline due to PP compound with regular structure, therefore fusing point can have good normal temperature shock resistance up to 167 ℃, and heat-resisting, corrosion-resistant, density is little, is the lightest current general-purpose plastics.Yet, because the molecular structure of PP is regular, make PP toughness poor, and PP surface hardness is not high, easily snag.In addition, current pure PP material is in use subject to the effect of light, heat and oxygen and is aging, and the bad demand that can not meet market of tint permanence.
Polymethyl methacrylate (PMMA) is a kind of transparent material of excellent combination property, and its relative molecular mass is about 2,000,000, and the molecular chain forming is very soft, and therefore, PMMA physical strength is higher, and hardness is better.And PMMA has fabulous light transmission, have certain thermotolerance, winter resistance, weathering resistance and erosion resistance, and insulating property are good, but its thermal stability is poor, normal temperature shock resistance is not good, easily aging so limited his application in a lot of fields.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art, provide a kind of and there is excellent glossiness, hardness and normal temperature shock resistance, and the good PP/PMMA alloy material of consistency.
Another object of the present invention is to provide the preparation method of this PP/PMMA alloy material.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A PP/PMMA alloy material, comprises following component by weight percentage:
And a kind of preparation method of PP/PMMA alloy material, comprises the following steps:
Formula according to above-mentioned PP/PMMA alloy material takes each component;
Above-mentioned PP, PMMA, compatilizer, oxidation inhibitor and lubricant are carried out to mixing treatment, obtain mixture;
By said mixture material melt extrude, granulation, dry, obtain PP/PMMA alloy material.
Above-mentioned PP/PMMA alloy material be take PP as matrix, by doping component PMMA in PP, not only improve the surface hardness of PP, scrape resistant, and the normal temperature resistance to impact shock of reinforced PMMA, collaborative hardness, scratch resistance performance and the normal temperature shock resistance that strengthens PP/PMMA alloy material, and make material there is good gloss.Meanwhile, also, by add compatilizer and oxidation inhibitor in PP/PMMA alloy material, not only effectively prevent that PMMA from degrading under hot conditions, and it is compatible that crystal type PP and two kinds of incompatible polymers of non-crystalline type PMMA are realized, thereby form rock steady structure.
The preparation method of above-mentioned PP/PMMA alloy material is easy and simple to handle, with low cost, is suitable for the suitability for industrialized production of PP/PMMA alloy material.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention PP/PMMA alloy material preparation method's process flow diagram.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of and has excellent glossiness, hardness and normal temperature shock resistance, and the good PP/PMMA alloy material of consistency, comprises by weight percentage following component:
Particularly, the above-mentioned PP/PMMA alloy material component PMMA that physical strength is higher and light transmission is fabulous by adulterating in PP matrix component strengthens surface hardness, glossiness and the mechanical property of PP, and because PP molecular structure is regular, highly crystalline, effectively the normal temperature shock resistance of strongthener.Therefore, PP, PMMA have following preferred embodiment:
As preferred embodiment, any in the mixture that above-mentioned matrix component PP is homo-polypropylene, Co-polypropylene, homo-polypropylene and Co-polypropylene, its melting index is 20～50g/10min(230 ℃/2.16Kg), notched Izod impact strength is 50～150J/M.Because homo-polypropylene only be take propylene as monomer, its symmetry is good, is conducive to improve the normal temperature shock resistance of material, and thus, further preferably, this matrix component PP is homo-polypropylene.
As another preferred embodiment, the melting index of above-mentioned PMMA is preferably 10～20g/10min(200 ℃/5Kg), the good fluidity in the course of processing of the PMMA in this numerical range, is conducive to the machine-shaping of material.
Because PP is Crystalline plastics, PMMA is non-crystalline type polymkeric substance, and PMMA and PP present different two-phases, so PP is incompatible with PMMA.For realizing PMMA and PP is compatible, improve the stability of material, the present embodiment preferably polyethylene grafted maleic anhydride is compatilizer, its percentage of grafting is 0.3-1%.Wherein, further preferably, the preparation method of this Research of Grafting Malaic Anhydride Onto Polyethylene comprises the following steps:
(1) take by weight percentage polyethylene 94.2～97.3%, vinylbenzene 1～2%, maleic anhydride 1.5～3%, crosslinking agent B IBP0.2～0.8%;
(2) crosslinking agent B IBP is dissolved in vinylbenzene, mixes with PP afterwards, obtain mixture;
(3) maleic anhydride is added in mixture and melt extruded, obtain Research of Grafting Malaic Anhydride Onto Polyethylene.
Above-mentioned preparation method be take vinylbenzene as compatilizer, under the initiation of crosslinking agent B IBP, make the side group anhydride bond of polyethylene (PE) grafted maleic anhydride (MAH), afterwards with the ester group of PMMA further combined with, and PE and PP are completely compatible, like this, the interfacial free energy of PP, PMMA blend and the free entropy of PE-MAH are reduced, finally reduce the free energy of blend, thereby reach the complete compatible object of PP, PMMA, PE-MAH.
In specific embodiment, in above-mentioned steps (1), take Research of Grafting Malaic Anhydride Onto Polyethylene weight percent as 100% calculating, this polyethylene is 96%, vinylbenzene is 1.6%, maleic anhydride is 2%, linking agent is BIBP0.4%; The step that melt extrudes of step (3) is: at extrusion temperature, be 170-190 ℃, screw speed is under the condition of 300-400r/min, by screw rod shearing, mixing, the molten materials of screw extrusion press, after extrude successively, granulation, drying treatment, obtain Research of Grafting Malaic Anhydride Onto Polyethylene.
Because PP, PMMA component are in use subject to the effect of light, heat and oxygen and aging, and these two kinds of superpolymer of PP and PMMA are easily degraded under hot conditions, causes the mechanical property of material and transparency obviously to decline, color and luster variation, therefore, in above-mentioned PP/PMMA alloy material, add oxidation inhibitor.
As preferred embodiment, above-mentioned oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, β-(3,5-di-tert-butyl-hydroxy phenyl) any one or the two or more mixtures of the positive octadecanol ester of propionic acid, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, select this kind antioxidant to be conducive to each component compatibility of itself and alloy material, thereby can improve the stability of PP/PMMA alloy material performance.Further preferably, this oxidation inhibitor is that above three kinds of oxidation inhibitor carry out composite acquisition according to mass ratio 1:1:1-2.
For improving mobility and the release property of material in processing, prevent material and adhere to and the defects such as generation flake in machine or in mould, and for improving above-mentioned each component in preparation process as melt extruding the dispersing uniformity in process, in above-described embodiment, add lubricant.Preferably, this lubricant is any one or two or more mixture of Zinic stearas, calcium stearate, ethylene bis stearamide.Further preferably, this lubricant is that above three kinds of lubricants carry out composite acquisition according to mass ratio 1:1:1.5-3.
Above-mentioned PP/PMMA alloy material be take PP as matrix, by doping component PMMA in PP, not only improve the surface hardness of PP, scrape resistant, and the normal temperature resistance to impact shock of reinforced PMMA, collaborative hardness, scratch resistance performance and the normal temperature shock resistance that strengthens PP/PMMA alloy material, and make material there is good gloss.Simultaneously, also by add oxidation inhibitor, compatilizer and lubricant in PP/PMMA alloy material, effectively prevent that PP and PMMA from degrading under hot conditions, improve crystal type PP performance incompatible with non-crystalline type PMMA, and promote the dispersed and mobility of each component in the course of processing, thereby form stable PP/PMMA alloy material.
Correspondingly, the embodiment of the present invention also provides the preparation method of above-mentioned PP/PMMA alloy material, and its technical process as shown in Figure 1.The method comprises the following steps:
S01. take each component of PP/PMMA alloy material: by the formula of above-mentioned PP/PMMA alloy material, take each component;
S02. each component is carried out to mixing treatment: each component taking in step S01 is carried out to mixing treatment, obtain mixture;
S03. mixture is melt extruded to processing: by mixture melt extrude, granulation, dry, obtain PP/PMMA alloy material.
In above-mentioned steps S03, the optimal process parameter melt extruding is: district's temperature is 100-120 ℃, and two district's temperature are 200-220 ℃, and three district's temperature are 200-220 ℃, and four district's temperature are 200-220 ℃, and die temperature is 100-120 ℃.Wherein, as long as can realize the above-mentioned process that melt extrudes, total the class of concrete forcing machine is not limited at this.
Preparation method by above-mentioned PP/PMMA alloy material can obtain that glossiness is high, hardness large, normal temperature excellent shock resistance, and the good PP/PMMA alloy material of consistency, improves its good article rate.In addition, this preparation method is easy and simple to handle, with low cost, is suitable for the suitability for industrialized production of PP/PMMA alloy material.
Formula and the preparation method of PP/PMMA alloy material of now take is example, and the present invention is further elaborated.
In following all embodiment, PP is homo-polypropylene PPH, is selected from Sinopec V30G; PMMA is selected from the strange beautiful CM205 in Zhenjiang, Taiwan; Compatilizer is Research of Grafting Malaic Anhydride Onto Polyethylene, and its preparation method as mentioned above, does not repeat them here; Oxidation inhibitor is by four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid and three kinds of oxidation inhibitor of three (2.4-di-tert-butyl-phenyl) phosphorous acid ester are that 1:1:2 carries out composite acquisition according to mass ratio; Lubricant profit is carried out composite acquisition by Zinic stearas, calcium stearate, three kinds of lubricants of ethylene bis stearamide according to mass ratio 1:1:1.5.
Embodiment 1～5
In embodiment 1～5, each PP/PMMA alloy material concrete component by weight percentage sees the following form 1.
In above-described embodiment 1～5, the preparation method of each PP/PMMA alloy material is identical, includes following steps:
S1. whole components of each PP/PMMA alloy material in above-described embodiment 1～5 are taken to each component in the concrete ratio in table 1 respectively;
S2. above-mentioned each component is carried out to mixing treatment in mixing tank, obtain mixture;
S3. mixture is placed in to screw extrusion press melt extrudes, granulation, dry and cooling, obtain PP/PMMA alloy material.Wherein, each zone temperatures of forcing machine is: 120 ℃, a district, two 200 ℃, districts, three 210 ℃, districts, four 220 ℃, districts; Melt pressure is 20MPa, and die temperature is 100 ℃, screw speed 130-150 rev/min, side feeding rotating speed 50-80 rev/min.
Comparative example 1～2
Comparative example 1～2 interalloy material concrete component by weight percentage sees the following form 1.
In comparative example 1～2, the preparation method of each alloy material is identical with the preparation method of each PP/PMMA alloy material in above-described embodiment 1～5.
Performance test:
The PP/PMMA alloy material that above-described embodiment 1～5 and comparative example 1～2 are prepared is dry 4-6 hour in the convection oven of 70-90 ℃, again dry material is prepared to test bars according to same injecting condition on 80T injection moulding machine, concrete injecting condition is, injection temperature: 220-250 ℃, injection pressure: 70-120Mpa, die temperature: 40-70 ℃.Concrete physicals test item is as follows:
Tensile strength is tested according to ASTM D638 standard;
Cantilever beam impact strength is tested according to ASTM D256 standard;
Flexural strength and modulus in flexure are tested by ASTM D790 standard;
Resistance to pencil scraping grade is measured according to ISO15194 standard.
The performance test results of the PP/PMMA alloy material that above-described embodiment 1～5 and comparative example 1～2 prepare sees the following form 1.
Table 1
From upper table 1, in the PP/PMMA alloy material of embodiment 1～5 preparation, PP adds, and is conducive to the raising of the normal temperature shock resistance of above-mentioned alloy material, but its lower hardness; The increase of PMMA and compatibilizer content, the scraping and wiping resistance performance of alloy material and hardness strengthen, but therefore its normal temperature shock resistance reduction need to adjust the compound proportion between PP, PMMA and compatilizer, could work in coordination with the mechanical property that improves above-mentioned alloy material; And when existing without PMMA and compatilizer (comparative example 1), flexural strength and the modulus in flexure of alloy material are poor, and the unusual scrape resistant not of material; When existing without PP and compatilizer (comparative example 2), the normal temperature shock resistance of alloy material is poor, has also limited the application of this alloy material.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a PP/PMMA alloy material, comprises following component by weight percentage:
2. PP/PMMA alloy material as claimed in claim 1, it is characterized in that, described PP is any in the mixture of homo-polypropylene, Co-polypropylene, homo-polypropylene and Co-polypropylene, its melting index is 20～50g/10min(230 ℃/2.16Kg), notched Izod impact strength is 50～150J/M.
3. PP/PMMA alloy material according to claim 1, is characterized in that, the melting index of described PMMA is 10～20g/10min(230 ℃/5Kg).
4. PP/PMMA alloy material according to claim 1, is characterized in that, described compatilizer is Research of Grafting Malaic Anhydride Onto Polyethylene, and its percentage of grafting is 0.3～1%.
5. PP/PMMA alloy material according to claim 4, is characterized in that, described Research of Grafting Malaic Anhydride Onto Polyethylene is got by following steps preparation:
Take described Research of Grafting Malaic Anhydride Onto Polyethylene weight percent as 100% calculating, take polyethylene 94.2～97.3%, vinylbenzene 1～2%, maleic anhydride 1.5～3%, crosslinking agent B IBP0.2～0.8%;
Described crosslinking agent B IBP is dissolved in described vinylbenzene, mixes with described PP afterwards, obtain mixture;
Described maleic anhydride is added in described mixture to melting and extrudes, obtain described Research of Grafting Malaic Anhydride Onto Polyethylene.
6. the polypropylene composite material as described in as arbitrary in claim 1～5, it is characterized in that, described oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] any one or the two or more mixtures of pentaerythritol ester, the positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid, three (2.4-di-tert-butyl-phenyl) phosphorous acid ester.
7. the polypropylene composite material as described in as arbitrary in claim 1～5, is characterized in that, described lubricant is any one or two or more mixture of Zinic stearas, calcium stearate, ethylene bis stearamide.
8. a preparation method for PP/PMMA alloy material, comprises the following steps:
Formula according to the arbitrary described PP/PMMA alloy material of claim 1～7 takes each component;
Described PP, PMMA, compatilizer, oxidation inhibitor and lubricant are carried out to mixing treatment, obtain mixture;
By described mixture melt extrude, granulation, dry, obtain described PP/PMMA alloy material.
9. the preparation method of PC material according to claim 9, is characterized in that, described in the processing parameter that melt extrudes be: district's temperature is 100-120 ℃, two district's temperature are 200-220 ℃, three district's temperature are 200-220 ℃, and four district's temperature are 200-220 ℃, and die temperature is 100-120 ℃.
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