CN101885878B - Polypropylene resin composite - Google Patents
Polypropylene resin composite Download PDFInfo
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- CN101885878B CN101885878B CN 201010253993 CN201010253993A CN101885878B CN 101885878 B CN101885878 B CN 101885878B CN 201010253993 CN201010253993 CN 201010253993 CN 201010253993 A CN201010253993 A CN 201010253993A CN 101885878 B CN101885878 B CN 101885878B
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Abstract
The invention provides a polypropylene resin composite. The composite comprises the following components in part by weight: 30 to 80 parts of polypropylene, 10 to 40 parts of packing, 5 to 20 parts of toughening agent, 0.2 to 1.5 parts of heat stabilizer, 0.01 to 3 parts of appearance improver and 0.2 to 2 parts of lubricant, wherein the appearance improver is an acrylate-carboxyl-containing olefin-propylene terpolymer or an epoxy aliphatic polymer. The appearance improver used in the invention is an aliphatic polymer with polar groups such as an acrylic resin group, a carboxyl, an epoxy group or the like, wherein the polymer per se has high compatibility with the components such as the polypropylene, the toughening agent and the like, while the polar groups have the high compatibility with the components such as the packing, the lubricant and the like; under the effect of the appearance improver, the fluidity and the flow direction of the non-polar substances such as the polypropylene, the toughening agent and the like and the polar substances such as the packing, the lubricant and the like tend to be consistent so as to avoid appearance defects such as a fiddle back figure, a rill mark or the like.
Description
Technical field
The present invention relates to the resin combination technical field, relate in particular to a kind of polypropylene resin composite.
Background technology
Polypropylene owing to have light weight, corrosion-resistant, design freedom is large etc., and advantage is widely used in the car industry, in particular for the manufacturing of the parts such as bumper, dashboard, door-plate.
In order to make the automobile product that obtains have better properties, modified polypropene becomes one of study hotspot, as has added the filled polypropylene of the weighting agents such as calcium carbonate, mica powder, Calucium Silicate powder or talcum powder; Added the tenacity-increased profax of the toughner such as rubber latex, mineral or whisker; Added simultaneously the filled toughening polypropylene of weighting agent, toughner and other lubricants etc.But, existing modified polypropene is being made automobile component by injection moulding, especially in the process of the large-sized automotive trim spare such as dashboard, door-plate, because polypropylene is different from the flowing property of the materials such as filler, lubricant, there are the macroscopic irregularitys such as tiger fur line or current mark in the automotive upholstery that makes, affects the attractive in appearance of automotive upholstery.
Prior art is generally carried out method elimination tiger fur line or the current marks such as aftertreatment by the modification mould or to automotive upholstery, the metal die that can change such as use temperature, but this method needs the special metal mould and can prolong forming period, increases production cost.Automotive upholstery is carried out spray treatment also can cover tiger fur line or current mark, but spray treatment requires polypropylene to have preferably paint adhesion performance, need to carry out surface modification to nonpolar polypropylene, not only increased processing step, and coating can cause environmental pollution, affects HUMAN HEALTH.
Summary of the invention
In view of this, technical problem to be solved by this invention is to provide a kind of polypropylene resin composite, can not produce the macroscopic irregularitys such as tiger fur line or current mark when making automotive upholstery with polypropylene resin composite provided by the invention.
The invention provides a kind of polypropylene resin composite, comprising:
The polypropylene of 30～80 weight parts;
The filler of 10～40 weight parts;
The toughner of 5～20 weight parts;
0.2 the thermo-stabilizer of～1.5 weight parts;
0.01 the outward appearance improving agent of～3 weight parts, described outward appearance improving agent are acrylate-carboxylic alkene-ethylene-dien terpolymer or epoxy group(ing) aliphatic polymer;
0.2 the lubricant of～2 weight parts.
Preferably, described acrylate-carboxylic alkene-ethylene-dien terpolymer is acrylate-alkene diprotic acid-ethylene-dien terpolymer.
Preferably, described acrylate-alkene diprotic acid-ethylene-dien terpolymer is acrylate-maleic acid-ethylene-dien terpolymer, acrylate-FUMARIC ACID TECH GRADE-ethylene-dien terpolymer, acrylate-propene dicarboxylic acid-ethylene-dien terpolymer or acrylate-hexene diacid-ethylene-dien terpolymer.
Preferably, described epoxy group(ing) aliphatic polymer is 1,2-epoxy group(ing)-alkene-terminal olefine multipolymer.
Preferably, described 1,2-epoxy group(ing)-alkene-terminal olefine multipolymer is 1,2-epoxy group(ing)-5-hexene-butadienecopolymer, 1,2-epoxy group(ing)-4-hexene-butadienecopolymer, 1,2-epoxy group(ing)-5-heptene-1,4-pentadiene copolymer or 1,2-epoxy group(ing)-6-heptene-hexene copolymer.
Preferably, described polyacrylic melt flow rate (MFR) is 10g/10min～30g/10min.
Preferably, described polyacrylic overhanging beam notched Izod impact strength 〉=15kJ/m
2
Preferably, described filler is one or more in talcum powder, calcium carbonate, wollastonite and the mica powder.
Preferably, described toughner is one or more in ethylene-octene copolymer, styrene-butadiene-styrene, hydrogenated styrene-butadiene-styrene multipolymer and the ethylene-propylene diene copolymer.
Preferably, the photostabilizer that also comprises 0.01～1.0 weight part.
Compared with prior art, the invention provides a kind of polypropylene resin composite, comprise polypropylene, filler, toughner, thermo-stabilizer, outward appearance improving agent and lubricant, wherein, the outward appearance improving agent is epoxy group(ing) aliphatic polymer or acrylate-carboxylic alkene-ethylene-dien terpolymer.The outward appearance improving agent that the present invention uses is with acrylate-based, the aliphatic polymer of carboxyl or epoxy group(ing) isopolarity group, wherein polymkeric substance itself and polypropylene, the consistency of the components such as toughner is better, and polar group and filler, the consistency of the components such as lubricant is better, therefore, when described polypropylene resin composite is used for making automotive upholstery, under the effect of outward appearance improving agent, polypropylene, apolar substance and the fillers such as toughner, flowability and the flow direction of lubricant isopolarity material reach unanimity, thereby avoided the generation of the macroscopic irregularitys such as tiger fur line or current mark, need not to revise mould or automotive upholstery is carried out aftertreatment.In addition, polypropylene resin composite provided by the invention has good performance, and the performance test results shows that the modulus in flexure of polypropylene resin composite provided by the invention in the time of 23 ℃ surpasses 2000MPa, and the socle girder notched Izod impact strength is greater than 30kJ/m
2
Embodiment
The invention provides a kind of polypropylene resin composite, comprising:
The polypropylene of 30～80 weight parts;
The filler of 10～40 weight parts;
The toughner of 5～20 weight parts;
0.2 the thermo-stabilizer of～1.5 weight parts;
0.01 the outward appearance improving agent of～3 weight parts, described outward appearance improving agent are acrylate-carboxylic alkene-ethylene-dien terpolymer or epoxy group(ing) aliphatic polymer;
0.2 the lubricant of～2 weight parts.
According to the present invention, the main ingredient of described polypropylene resin composite is polypropylene, and content is 30～80 weight parts, is preferably 40～80 weight parts, and more preferably 50～80 weight parts most preferably are 60～80 weight parts.Described polypropylene is preferably the multipolymer of propylene-ethylene, more preferably high flow polypropylene.Described polyacrylic melt flow rate (MFR) (MFR) is preferably 5g/10min～40g/10min, and more preferably 10g/10min～30g/10min most preferably is 15g/10min～25g/10min; Described polyacrylic socle girder notched Izod impact strength is preferably 〉=10kJ/m
2, more preferably 〉=15kJ/m
2, most preferably be 〉=20kJ/m
2
In order to improve polyacrylic performance, the present invention also comprises filler, and content is 10～40 weight parts, is preferably 10～30 weight parts, more preferably 15～20 weight parts.Described filler is preferably mineral filler, more preferably one or more in talcum powder, calcium carbonate, wollastonite, clay, mica and the glass fibre, more preferably talcum powder and calcium carbonate.
In order to improve polyacrylic toughness, the present invention also comprises toughner, and content is 5～20 weight parts, is preferably 5～15 weight parts, more preferably 10～15 weight parts.Described toughner includes but not limited to ethylene-octene copolymer (POE), styrene-butadiene copolymer (SBS), hydrogenated styrene-butadiene-styrene multipolymer (SEBS), ethylene-propylene diene copolymer (EPDM), MBS terpolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and ethylene-vinyl acetate copolymer (EVA) etc., be preferably among POE, SBS, SEBS and the EPDM one or more, more preferably POE, SBS or EPDM.
According to the present invention, described polypropylene resin composite also comprises thermo-stabilizer, and content is 0.2～1.5 weight part, is preferably 0.2～1 weight part, more preferably 0.2～0.5 weight part.Described thermo-stabilizer is preferably one or more in phenols, hindered amines, phosphorous acid esters or the Hinered phenols, wherein, the object lesson of phenols thermo-stabilizer includes but not limited to the 2-tertiary butyl-4-methoxyphenol, the 2-tertiary butyl-4,6-syringol, 3,5-di-t-butyl-4 hydroxytoluene, 2,4,6-tri-butyl-phenol etc.; The object lesson of described hindered amines thermo-stabilizer includes but not limited to 4-hydroxyl-2,2,6,6-tetramethyl piperidine, 1-allyl group-4-hydroxyl-2,2,6,6-tetramethyl piperidine, 1-benzyl-4-hydroxyl-2,2,6,6-tetramethyl piperidine, 1-ethyl 4-bigcatkin willow acyloxy-2,2,6,6-tetramethyl piperidine, dibutyl-propanedioic acid two (1,2, the basic ester of 2,6,6-pentamethyl-piperidines-4) and three (1-propyl group-2,2,6,6-tetramethyl piperidine-4-yl) phosphoric acid ester; The object lesson of described phosphorous acid ester type thermal stabilizing agent includes but not limited to three (2-isobutyl phenenyl) phosphorous acid ester, three (2-tert-butyl-phenyl) phosphorous acid ester, three (2-tert-pentyl phenyl) phosphorous acid ester, three (2-cyclohexyl phenyl) phosphorous acid ester, four (2, the 4-di-tert-butyl-phenyl)-4,4 '-biphenylene two phosphinates and two (2-cyclohexyl phenyl) pentaerythritol diphosphites; Described Hinered phenols thermo-stabilizer includes but not limited to octadecyl-3-(3, the 5-di-tert-butyl-hydroxy phenyl) two [3-(3 for propionic ester, hexa-methylene, the 5-di-tert-butyl-hydroxy phenyl) propionic ester], [3-(3 for tetramethylolmethane four, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] and two [2-[3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionyloxies]-1 of 3,9-, the 1-dimethyl ethyl]-2,4,8,10-, four oxa-volution [5,5] undecanes etc.
The present invention also comprises the outward appearance improving agent, and content is 0.01～3 weight part, is preferably 0.1～1.5 weight part, and more preferably 0.1～1 weight part most preferably is 0.1～0.5 weight part.Described outward appearance improving agent is acrylate-carboxylic alkene-ethylene-dien terpolymer or epoxy group(ing) aliphatic polymer, in acrylate-carboxylic alkene-ethylene-dien terpolymer or the epoxy group(ing) aliphatic polymer, terpolymer or polymkeric substance itself are with apolar substances such as polypropylene, toughner good consistency to be arranged, and have more consistent flowability and flow direction; And contain acrylate or epoxy group(ing) isopolarity group in this terpolymer or the polymkeric substance, this polar group and filler, lubricant isopolarity material have good consistency, have more consistent flowability and flow direction, therefore, described outward appearance improving agent can the balance polar material and flowability and the flow direction of apolar substance, it is reached unanimity, thereby avoided the generation of the macroscopic irregularitys such as tiger fur line or current mark.According to the present invention, described acrylate-carboxylic alkene-ethylene-dien terpolymer is preferably acrylate-alkene diprotic acid-ethylene-dien terpolymer, more preferably acrylate-contain the alkene diprotic acid-ethylene-dien terpolymer of 4 above carbon atoms most preferably is acrylate-maleic acid-ethylene-dien terpolymer, acrylate-FUMARIC ACID TECH GRADE-ethylene-dien terpolymer, acrylate-propene dicarboxylic acid-ethylene-dien terpolymer or acrylate-hexene diacid-ethylene-dien terpolymer.Described epoxy group(ing) aliphatic polymer is preferably 1,2-epoxy group(ing)-alkene-terminal olefine multipolymer, more preferably 1,2-epoxy group(ing)-5-hexene-butadienecopolymer, 1,2-epoxy group(ing)-4-hexene-butadienecopolymer, 1,2-epoxy group(ing)-5-heptene-Isosorbide-5-Nitrae-pentadiene copolymer or 1,2-epoxy group(ing)-6-heptene-hexene copolymer.
For the efficient that improves thermo-stabilizer prevents degradation of polypropylene simultaneously, the present invention also comprises lubricant, and content is 0.2～2 weight part, is preferably 0.2～1.5 weight part, more preferably 0.2～1 weight part.Described lubricant is preferably one or more in calcium stearate, Aluminate, titanic acid ester and the paraffin, more preferably titanic acid ester.
According to the present invention, described resin combination preferably includes photostabilizer, and content is 0.01～1.0, is preferably 0.1～0.5.Described photostabilizer is preferably hindered amine light stabilizer or uv-absorbing agent.The object lesson of described hindered amine light stabilizer includes but not limited to 4-hydroxyl-2,2,6,6-tetramethyl piperidine, 1-allyl group-4-hydroxyl-2,2,6,6-tetramethyl piperidine, 1-benzyl-4-hydroxyl-2,2,6,6-tetramethyl piperidine, 1-ethyl 4-bigcatkin willow acyloxy-2,2,6,6-tetramethyl piperidine, dibutyl-propanedioic acid two (1,2, the basic ester of 2,6,6-pentamethyl-piperidines-4) and three (1-propyl group-2,2,6,6-tetramethyl piperidine-4-yl) phosphoric acid ester; The object lesson of described uv-absorbing agent include but not limited to 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, 2-(2 '-hydroxyl-3 '; 5 '-di-tert-butyl-phenyl) benzotriazole, 2; 4-dihydroxy benaophenonel, 2-hydroxyl-4-methoxyl group-5-diphenylsulfone ketone, 2,2 '-dihydroxyl-4-methoxy benzophenone and two (2-methoxyl group-4-hydroxyl-5 Benzoylbenzene methylmethane).
Polypropylene resin composite provided by the invention preferably prepares according to following steps:
With polypropylene, filler, thermo-stabilizer and mix lubricant, obtain mixture;
Add in the described mixture and carry out behind outward appearance improving agent and the toughner mixingly, obtain polypropylene resin composite.
When needs add photostabilizer, with described photostabilizer and polypropylene, filler, thermo-stabilizer and mix lubricant.Described being blended in the mixing machine well known to those skilled in the art carried out, and the rotating speed of described mixing machine is preferably 300 rev/mins～400 rev/mins, and mixing time is preferably 1min～3min.
After obtaining mixture, to wherein add carry out after outward appearance improving agent and toughner mix again mixing, described when again mixing the rotating speed of mixing machine be preferably 400 rev/mins～700 rev/mins, mixing time is preferably 1min～2min.Described mixingly in mixing roll well known to those skilled in the art, carry out, such as twin screw extruder, Banbury mixer etc., it is mixing that the present invention preferably carries out in twin screw extruder, and melting temperature is preferably 180 ℃～240 ℃.After mixing the finishing, can obtain polypropylene resin composite.
Adopt injection molding process well known to those skilled in the art that described polypropylene resin composite is processed into the standard batten, its outward appearance is observed, do not find the defectives such as tiger fur line or current mark.Described standard batten is carried out performance test, and the result shows that in the time of 23 ℃, the modulus in flexure of described polypropylene resin composite surpasses 2000MPa, and the socle girder notched Izod impact strength is greater than 30kJ/m
2, can satisfy the requirement of automobile industry to interior material.
Compared with prior art, the present invention has added epoxy group(ing) aliphatic polymer or acrylate-carboxylic alkene-ethylene-dien terpolymer as the outward appearance improving agent in polypropylene resin composite, flowability and the flow direction of the apolar substances such as polypropylene, toughner and filler, lubricant isopolarity material are reached unanimity, thereby avoided the generation of the macroscopic irregularitys such as tiger fur line or current mark, be suitable for making the large-scale inside gadgets such as fascia, door-plate.
In order to further specify the present invention, below in conjunction with embodiment polypropylene resin composite provided by the invention is described in detail.
In following examples and the comparative example used each raw material be purchase on the market available.
Embodiment 1
With 68kg polypropylene, 20kg calcium carbonate, the 0.3kg2-tertiary butyl-4-methoxyphenol, 0.2kg4-hydroxyl-2,2,6,6-tetramethyl piperidine and 0.3kg calcium stearate mix 2min in mixing machine, and the rotating speed of mixing machine is 350 rev/mins; Then continue to mix 1.5min to wherein adding 12kgPOE and 0.2kg acrylate-maleic acid-ethylene-dien terpolymer, the rotating speed of mixing machine is 500 rev/mins, then material is transferred in the twin screw extruder, melting mixing in the time of 200 ℃ obtains polypropylene resin composite after extruding.Wherein, described polyacrylic MFR is 10g/10min, and the socle girder notched Izod impact strength is 15kJ/m
2
Described polypropylene resin composite in 80 ℃ of dry 2h, is obtained the standard batten after the injector injection moulding, molding technique parameter is as follows:
Temperature of charge: one section 230 ℃, two sections 230 ℃, three sections 230 ℃, four sections 220 ℃, five sections 210 ℃;
Penetrate pressure: one section 80kg, two sections 75kg, three sections 75kg, four sections 78kg;
Issuing velocity: one section 95%, two section 85%, three section 65%, four section 55%;
Final position: one section 55mm, two sections 45mm, three sections 40mm, four sections 32mm;
Pressurize: pressure 35kg, speed 10%, time 2s;
Storing one: pressure 135kg, speed 90%, final position 30mm, back pressure 20kg;
Storing two: pressure 125kg, speed 90%, final position 45mm, back pressure 18kg;
Storing three: pressure 124kg, speed 90%, final position 115mm, back pressure 18kg;
Inject time: 7s;
Cooling time: 14s;
Outward appearance to described standard batten is observed, and the results are shown in Table 1, the outward appearance observations of the automotive upholstery that table 1 provides for the embodiment of the invention and comparative example.
Described standard batten is carried out performance test, the results are shown in Table 2, the performance index of the polypropylene resin composite that table 2 provides for the embodiment of the invention and comparative example.
Embodiment 2
With 68kg polypropylene, 10kg calcium carbonate, 10kg talcum powder, 0.4kg three (2-isobutyl phenenyl) phosphorous acid ester, 0.2kg2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole and 0.3kg titanic acid ester mix 2min in mixing machine, the rotating speed of mixing machine is 350 rev/mins; Then to wherein adding 12kgPOE and 0.2kg1,2-epoxy group(ing)-5-hexene-butadienecopolymer continues to mix 1.5min, and the rotating speed of mixing machine is 600 rev/mins, then material is transferred in the twin screw extruder, melting mixing in the time of 200 ℃ obtains polypropylene resin composite after extruding.Wherein, described polyacrylic MFR is 15g/10min, and the socle girder notched Izod impact strength is 20kJ/m
2
With described polypropylene resin composite in 80 ℃ of dry 2h, after the processing parameter injection moulding that injector provides according to embodiment 1, obtain the standard batten, outward appearance to described standard batten is observed, the results are shown in Table 1, the outward appearance observations of the automotive upholstery that table 1 provides for the embodiment of the invention and comparative example.
Described standard batten is carried out performance test, the results are shown in Table 2, the performance index of the polypropylene resin composite that table 2 provides for the embodiment of the invention and comparative example.
Embodiment 3
With 61kg polypropylene, 15kg calcium carbonate, 10kg talcum powder, 0.3kg octadecyl-3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester, 0.2kg2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole and 0.3kg Aluminate mix 2min in mixing machine, the rotating speed of mixing machine is 350 rev/mins; Then continue to mix 1.5min to wherein adding 14kgSEBS and 0.2kg acrylate-FUMARIC ACID TECH GRADE-ethylene-dien terpolymer, the rotating speed of mixing machine is 600 rev/mins, then material is transferred in the twin screw extruder, melting mixing in the time of 200 ℃ obtains polypropylene resin composite after extruding.Wherein, described polyacrylic MFR is 20g/10min, and the socle girder notched Izod impact strength is 18kJ/m
2
With described polypropylene resin composite in 80 ℃ of dry 2h, after the processing parameter injection moulding that injector provides according to embodiment 1, obtain the standard batten, outward appearance to described standard batten is observed, the results are shown in Table 1, the outward appearance observations of the automotive upholstery that table 1 provides for the embodiment of the invention and comparative example.
Described standard batten is carried out performance test, the results are shown in Table 2, the performance index of the polypropylene resin composite that table 2 provides for the embodiment of the invention and comparative example.
Embodiment 4
With 61kg polypropylene, 15kg calcium carbonate, 10kg talcum powder, the 0.3kg2-tertiary butyl-4-methoxyphenol, 0.2kg4-hydroxyl-2,2,6,6-tetramethyl piperidine and 0.3kg calcium stearate mix 2min in mixing machine, and the rotating speed of mixing machine is 350 rev/mins; Then continue to mix 1.5min to wherein adding 14kgEPDM and 0.2kg acrylate-maleic acid-ethylene-dien terpolymer, the rotating speed of mixing machine is 500 rev/mins, then material is transferred in the twin screw extruder, melting mixing in the time of 200 ℃ obtains polypropylene resin composite after extruding.Wherein, described polyacrylic MFR is 30g/10min, and the socle girder notched Izod impact strength is 19kJ/m
2
With described polypropylene resin composite in 80 ℃ of dry 2h, after the processing parameter injection moulding that injector provides according to embodiment 1, obtain the standard batten, outward appearance to described standard batten is observed, the results are shown in Table 1, the outward appearance observations of the automotive upholstery that table 1 provides for the embodiment of the invention and comparative example.
Described standard batten is carried out performance test, the results are shown in Table 2, the performance index of the polypropylene resin composite that table 2 provides for the embodiment of the invention and comparative example.
Embodiment 5
With 61kg polypropylene, 15kg calcium carbonate, 10kg talcum powder, the 0.3kg2-tertiary butyl-4-methoxyphenol, 0.2kg4-hydroxyl-2,2,6,6-tetramethyl piperidine and 0.3kg calcium stearate mix 2min in mixing machine, and the rotating speed of mixing machine is 350 rev/mins; Then to wherein adding 14kgEPDM and 2.5kg1,2-epoxy group(ing)-4-hexene-butadienecopolymer continues to mix 1.5min, and the rotating speed of mixing machine is 500 rev/mins, then material is transferred in the twin screw extruder, melting mixing in the time of 200 ℃ obtains polypropylene resin composite after extruding.Wherein, described polyacrylic MFR is 30g/10min, and the socle girder notched Izod impact strength is 19kJ/m
2
With described polypropylene resin composite in 80 ℃ of dry 2h, after the processing parameter injection moulding that injector provides according to embodiment 1, obtain the standard batten, outward appearance to described standard batten is observed, the results are shown in Table 1, the outward appearance observations of the automotive upholstery that table 1 provides for the embodiment of the invention and comparative example.
Described standard batten is carried out performance test, the results are shown in Table 2, the performance index of the polypropylene resin composite that table 2 provides for the embodiment of the invention and comparative example.
Comparative example 1
With 68kg polypropylene, 20kg talcum powder, the 0.3kg2-tertiary butyl-4-methoxyphenol, 0.2kg4-hydroxyl-2,2,6,6-tetramethyl piperidine and 0.3kg calcium stearate mix 2min in mixing machine, and the rotating speed of mixing machine is 350 rev/mins; Then continue to mix 1.5min to wherein adding 14kgPOE, the rotating speed of mixing machine is 500 rev/mins, then material is transferred in the twin screw extruder, and melting mixing in the time of 200 ℃ obtains polypropylene resin composite after extruding.Wherein, described polyacrylic MFR is 30g/10min, and the socle girder notched Izod impact strength is 19kJ/m
2
With described polypropylene resin composite in 80 ℃ of dry 2h, after the processing parameter injection moulding that injector provides according to embodiment 1, obtain the standard batten, outward appearance to described standard batten is observed, the results are shown in Table 1, the outward appearance observations of the automotive upholstery that table 1 provides for the embodiment of the invention and comparative example.
The outward appearance observations of the automotive upholstery that table 1 embodiment of the invention and comparative example provide
Described standard batten is carried out performance test, the results are shown in Table 2, the performance index of the polypropylene resin composite that table 2 provides for the embodiment of the invention and comparative example.
The performance index of the polypropylene resin composite that table 2 embodiment of the invention and comparative example provide
By table 1 and table 2 as can be known, polypropylene resin composite provided by the invention surpasses 2000MPa through the modulus in flexure of the standard batten that injection moulding obtains, and the socle girder notched Izod impact strength is greater than 30kJ/m
2, flexural strength is greater than 27MPa, and hardness can reach the hardness of Pencil with 2B hardness, can satisfy the requirement of automobile industry to interior material; The defectives such as tiger fur line and current mark do not appear in its outward appearance yet, need not to carry out spray treatment again, are applicable to make the large-scale inside gadgets such as fascia, door-plate.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (4)
1. polypropylene resin composite, composed of the following components:
The polypropylene of 30～80 weight parts;
The filler of 10～40 weight parts;
The toughner of 5～20 weight parts;
0.2 the thermo-stabilizer of～1.5 weight parts;
0.01 the outward appearance improving agent of～3 weight parts, described outward appearance improving agent are acrylate-carboxylic alkene-ethylene-dien terpolymer or epoxy group(ing) aliphatic polymer;
0.2 the lubricant of～2 weight parts;
Wherein: described polyacrylic melt flow rate (MFR) is 10g/10min～30g/10min;
Described acrylate-carboxylic alkene-ethylene-dien terpolymer is acrylate-alkene diprotic acid-ethylene-dien terpolymer; Described acrylate-alkene diprotic acid-ethylene-dien terpolymer is acrylate-maleic acid-ethylene-dien terpolymer, acrylate-FUMARIC ACID TECH GRADE-ethylene-dien terpolymer, acrylate-propene dicarboxylic acid-ethylene-dien terpolymer or acrylate-hexene diacid-ethylene-dien terpolymer;
Described epoxy group(ing) aliphatic polymer is 1,2-epoxy group(ing)-alkene-terminal olefine multipolymer; Described 1,2-epoxy group(ing)-alkene-terminal olefine multipolymer is 1,2-epoxy group(ing)-5-hexene-butadienecopolymer, 1,2-epoxy group(ing)-4-hexene-butadienecopolymer, 1,2-epoxy group(ing)-5-heptene-Isosorbide-5-Nitrae-pentadiene copolymer or 1,2-epoxy group(ing)-6-heptene-hexene copolymer.
2. polypropylene resin composite according to claim 1 is characterized in that, described polyacrylic overhanging beam notched Izod impact strength 〉=15kJ/m
2
3. polypropylene resin composite according to claim 1 is characterized in that, described filler is one or more in talcum powder, calcium carbonate, wollastonite and the mica powder.
4. polypropylene resin composite according to claim 1, it is characterized in that described toughner is one or more in ethylene-octene copolymer, styrene-butadiene-styrene, hydrogenated styrene-butadiene-styrene multipolymer and the ethylene-propylene diene copolymer.
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| CN 201010253993 CN101885878B (en) | 2010-08-12 | 2010-08-12 | Polypropylene resin composite |
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| CN 201010253993 CN101885878B (en) | 2010-08-12 | 2010-08-12 | Polypropylene resin composite |
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| CN101885878B true CN101885878B (en) | 2013-03-20 |
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| CN105965756A (en) * | 2016-05-05 | 2016-09-28 | 上海俊尔新材料有限公司 | Preparing method of injection-molded component |
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