CN106589578A - High-performance jute fiber reinforced polypropylene composite and preparation method thereof - Google Patents
High-performance jute fiber reinforced polypropylene composite and preparation method thereof Download PDFInfo
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- CN106589578A CN106589578A CN201610961944.4A CN201610961944A CN106589578A CN 106589578 A CN106589578 A CN 106589578A CN 201610961944 A CN201610961944 A CN 201610961944A CN 106589578 A CN106589578 A CN 106589578A
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- tossa
- fiber reinforced
- performance
- polypropylene composite
- reinforced polypropylene
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- -1 polypropylene Polymers 0.000 title claims abstract description 78
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 71
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 71
- 239000000835 fiber Substances 0.000 title claims abstract description 57
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 235000011777 Corchorus aestuans Nutrition 0.000 title claims abstract description 29
- 235000010862 Corchorus capsularis Nutrition 0.000 title claims abstract description 29
- 240000000491 Corchorus aestuans Species 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000007822 coupling agent Substances 0.000 claims abstract description 19
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 39
- 230000003078 antioxidant effect Effects 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 27
- 238000001125 extrusion Methods 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 12
- 235000013539 calcium stearate Nutrition 0.000 claims description 12
- 239000008116 calcium stearate Substances 0.000 claims description 12
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 8
- 210000000707 wrist Anatomy 0.000 claims description 8
- 229910000077 silane Inorganic materials 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 229920000578 graft copolymer Polymers 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- DUWWHGPELOTTOE-UHFFFAOYSA-N n-(5-chloro-2,4-dimethoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC(OC)=C(NC(=O)CC(C)=O)C=C1Cl DUWWHGPELOTTOE-UHFFFAOYSA-N 0.000 claims description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000011236 particulate material Substances 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical compound CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 claims description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000004605 External Lubricant Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000005056 compaction Methods 0.000 claims description 2
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 2
- 229940057995 liquid paraffin Drugs 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- KWUZCAVKPCRJPO-UHFFFAOYSA-N n-ethyl-4-(6-methyl-1,3-benzothiazol-2-yl)aniline Chemical compound C1=CC(NCC)=CC=C1C1=NC2=CC=C(C)C=C2S1 KWUZCAVKPCRJPO-UHFFFAOYSA-N 0.000 claims description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims 2
- OYUMYJKDVNCXAX-UHFFFAOYSA-N 2-(3,5-ditert-butyl-2-hydroxyphenyl)propanoic acid Chemical compound OC(=O)C(C)C1=CC(C(C)(C)C)=CC(C(C)(C)C)=C1O OYUMYJKDVNCXAX-UHFFFAOYSA-N 0.000 claims 1
- YAGBAUUBKBTRNY-UHFFFAOYSA-N CO[SiH](OC)OC.C(C=C)(=O)OCCC[SiH2]OCC Chemical compound CO[SiH](OC)OC.C(C=C)(=O)OCCC[SiH2]OCC YAGBAUUBKBTRNY-UHFFFAOYSA-N 0.000 claims 1
- DNXHEGUUPJUMQT-CBZIJGRNSA-N Estrone Chemical compound OC1=CC=C2[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1 DNXHEGUUPJUMQT-CBZIJGRNSA-N 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 claims 1
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 238000010422 painting Methods 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012670 alkaline solution Substances 0.000 abstract 1
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 230000004927 fusion Effects 0.000 description 6
- 238000004898 kneading Methods 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 235000010206 Corchorus olitorius Nutrition 0.000 description 3
- 244000227473 Corchorus olitorius Species 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 2
- 241001274660 Modulus Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000004792 Corchorus capsularis Species 0.000 description 1
- 229920000426 Microplastic Polymers 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000011174 green composite Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
-
- 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
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a high-performance jute fiber reinforced polypropylene composite and a prepration method thereof. The high-performance jute fiber reinforced polypropylene composite comprises the following raw materials of, by weight, 20-60 parts of jute fibers, 30-80 parts of polypropylene, 1-10 parts of a compatilizer, 0.5-2 parts of a coupling agent, 0.1-1 part of antioxidants, and 0.2-1 part of lubricants. The polypropylene composite used for vehicles is prepared by adoption of the jute fibers which are low in price, rich in source, high in specific modulus, low in density and small in effect on the environment, the production cost can be lowered, and the composite accords with the development trend of low-weight, environment-friendly and recyclable automobiles; and meanwhile, the natural fibers are treated by adoption of an alkaline solution, the coupling agent and the compatilizer, the hygroscopicity of the jute fibers is reduced, and the bonding force between the jute fibers and polypropylene particles is increased at the same time.
Description
Technical field
The invention belongs to fibrous composite technical field, is related to a kind of high-performance jute fiber reinforced polypropylene composite wood
Material and preparation method thereof.
Background technology
With increasingly serious, greenization, the recyclable, light weight of fast-developing and environment and the energy problem of auto industry
Change, low energy consumption etc. have obviously become the theme of automotive material development.Natural fiber as a kind of renewable ecological environment-friendly materials,
Because of its abundance, there is environmental friendliness than glass fibre and synthetic fibers, it is degradable, it is cheap, it is more excellent than performance protrusion etc.
Point so that natural fiber reinforced resin composite also serves as the pass that a kind of Green Composites obtain increasingly in automotive material
Note, such as can make vehicle door interior trim panel, Hu Ding, instrument board, backrest, OK using natural fiber reinforced polypropylene composite material
The parts such as Lee's disk, standby wheel cover, vertical column internal decoration part.
Natural fiber includes some wood fiber, Plant fiber and flaxen fiber etc..Wherein preferably, density is low for flaxen fiber intensity,
Recoverable, with higher draw ratio, the composite outward appearance of preparation preferably, and obtains more concern, tossa
Other flaxen fibers that compare have advantage in price, so general consider from tossa as strengthening raw material.
The processing mode for strengthening composite to prepare automotive upholstery using natural fiber at present mainly adopts hot pressing
With injection two ways, wherein it is hot-forming be using natural fiber composite plate being directly hot pressed into required product shape, and
To the parts product that some shape matchings are complicated, prepared using injection mo(u)lding.Therefore need for natural fiber to strengthen compound
Material causes pellet carries out injection mo(u)lding to facilitate.
Prepare in existing employing twin screw in Corchorus olitorius L. reinforced polypropylene compound material it is found that due to tossa
There is proportion little, fluffy, plastic pellet is than great, closely knit, so in general mechanical mixture, both are difficult to be evenly mixed in
Together, in blanking process, fiber is easily put up a bridge, and is difficult blanking, fine before and after causing to occur in high-load fiber granulation process
Dimension hplc is variant, broken strip phenomenon easily occur, be unfavorable for continuous prodution, while compound extruded of the tossa in twin screw
Under high shear force, high-temperature effect, fiber causes to damage in itself, and certain degraded occurs, causes the performance of material also can
There is certain decline.
The content of the invention
The invention aims to provide a kind of high-performance jute fiber reinforced polypropylene composite and its preparation side
Method；To reduce the injury to tossa, retain the reinforced effects of tossa.
For achieving the above object, the present invention is specifically employed the following technical solutions：
A kind of high-performance jute fiber reinforced polypropylene composite, which includes the raw material of following weight portion meter：
Polypropylene：30-80；
Tossa：20-60；
Compatilizer：1-10；
Coupling agent：0.5-2；
Antioxidant：0.1-1；
Lubricant：0.2-1.
Wherein, described polypropylene matrix resin adopts HOPP, and melt index is in 12g/10min or so.
Described tossa is modified tossa, and using natural chopped strand, length is 5mm or so, adopts 5%
NaOH dipping by lye process, the drying and processing at 80 DEG C of the tossa after alkali process, using silane coupler to fiber
Surface-coated process is carried out, modified tossa is obtained.
Described compatilizer adopts polar monomer graft polymer, graft polymers matrix to select polyethylene or polypropylene,
Grafted monomers select maleic anhydride, i.e., compatilizer used is polypropylene grafted maleic anhydride (PP-g-MAH).
The one kind of described coupling agent in silane coupler and titanate coupling agent.Preferably three second of 3- aminopropyls
TMOS (KH550), 3- (the third oxygen of 2,3- epoxies) propyl trimethoxy silicane (KH560), γ-methacryloxypropyl
Trimethoxy silane (KH570) and one kind.
Described antioxidant selects four [β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester (antioxidant
1010), thio-2 acid octadecyl ester (antioxidant DSTP), β-(3,5- di-tert-butyl-hydroxy phenyls) positive octadecanol of propanoic acid
More than the one or two kinds of in ester (antioxidant 1076), three [2,4- di-tert-butyl-phenyl] phosphite ester (irgasfos 168s) mix
Close.
Calcium stearate of the described lubricant in in-lubricant, stearic amide, erucyl amide, stearic acid list glycerol
One or more in ester；One or more in Tissuemat E, liquid paraffin in external lubricant.
The preparation method of above-mentioned high-performance jute fiber reinforced polypropylene composite, comprises the following steps：
(1) modification of tossa.
The natural fiber that this experiment is selected is chopped strand, and length is 5mm or so, at 5% NaOH dipping by lye
Reason, the drying and processing at 80 DEG C of the tossa after alkali process carry out surface-coated process to fiber using silane coupler,
Obtain modified fiber.
(2) preparation of jute fiber reinforced polypropylene composite.
By proportion by weight by acrylic resin, antioxidant, lubricant, mixed at high speed 5min or so, after mix homogeneously
The mixing chamber for being added to banbury of mixture particle batches time, then by the tossa being modified in step (1) similarly
It is added in banbury according to mixture same number, period constantly carries out compaction treatment, closed-smelting machine rotor is constantly rotated, fully
Mixing tossa and particulate material.The melting temperature of wherein banbury is arranged on 185 DEG C.By banburying mixed lump material
Being transferred to double wrist spouts immediately carries out feeding, which is carried out extrude by single screw extrusion machine, air-cooled, pelletize, and single screw rod is straight
Footpath is 70mm, and draw ratio is 10, and single screw extrusion machine is divided into three stage control temperature, and from spout to head, each section of temperature is successively
For 180 DEG C, 185 DEG C, 185 DEG C.
Beneficial effects of the present invention are：Using cheap, abundance, specific modulus is higher, density is low, to environmental activity
Less tossa is preparing automobile-used reinforced polypropylene compound material, it is possible to decrease production cost, meet automotive light weight technology, green
Change recyclable this development trend；Simultaneously the present invention be considered as aqueous slkali and coupling agent and compatilizer to natural fiber at
Reason, reduces the hygroscopicity of tossa, while improving the adhesion between tossa and polypropylene particles；Also the present invention is adopted
Mode combine with Single screw extrusion prilling to prepare jute fiber reinforced polypropylene composite with banburying blending technology,
By reducing the shear property model to tossa so as to certain reservation length, the potentiation of polypropylene material is had
Improved.
Specific embodiment
With reference to instantiation, the present invention is described in detail.Unless otherwise specified, in embodiment, each component is all
Weight portion.But the invention is not restricted to this, every present invention is equal to or equivalent transformation, all within protection scope of the present invention.
It is raw materials used in the embodiment of the present invention and comparative example：
Polypropylene is M1200HS, melt index 12g/10min (test condition：230 DEG C of * 2.16Kg), Shanghai petrochemical industry
Company limited；Chopped strand of the tossa for 5mm or so, Hangzhou Shuanglv Textile Co., Ltd.；Compatilizer is connect for polypropylene
Branch maleic anhydride, Shanghai Zhuan Jing Chemical Co., Ltd.s；Coupling agent is APTES (KH550), commercially available；It is anti-
Oxygen agent is antioxidant DSTP and antioxidant 1010, irgasfos 168 in mass ratio 3:1:2 compound antioxidants, wherein antioxidant DSTP
ICE companies of Britain are production, and antioxidant 1010 is produced for Ciba companies with irgasfos 168；Lubricant is calcium stearate, commercially available；
Pulvis Talci is average diameter at 1 μm or so, commercially available；Wood powder is 60 mesh Poplar Powders, commercially available；
Embodiment 1：
75.7 parts of polypropylene, 20 parts of tossa, 3 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
0.5 part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, at a high speed
Mix 5min in blender, tossa is helped with each component with the polypropylene for preparing Jing after 5%NaOH solution, coupling agent treatment
Agent composition together adds the mixing chamber of banbury, carries out mixing fusion treatment to which by the rotation of closed-smelting machine rotor, turns
Rotor speed is 24r/min, and the temperature of kneading chamber is set in 185 DEG C, and mixing time is 45min, by banburying mixed block
Material is transferred to double wrist spouts immediately, which is carried out extrude by single screw extrusion machine, air-cooled, pelletize, wherein Single screw extrusion
Machine is divided into three stage control temperature, and from spout to head, each section of temperature is followed successively by 180 DEG C, 185 DEG C, 185 DEG C.
Embodiment 2：
65.7 parts of polypropylene, 30 parts of tossa, 3 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
0.5 part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, at a high speed
Mix 5min in blender, tossa is helped with each component with the polypropylene for preparing Jing after 5%NaOH solution, coupling agent treatment
Agent composition together adds the mixing chamber of banbury, carries out mixing fusion treatment to which by the rotation of closed-smelting machine rotor, turns
Rotor speed is 24r/min, and the temperature of kneading chamber is set in 185 DEG C, and mixing time is 45min, by banburying mixed block
Material is transferred to double wrist spouts immediately, which is carried out extrude by single screw extrusion machine, air-cooled, pelletize, wherein Single screw extrusion
Machine is divided into three stage control temperature, and from spout to head, each section of temperature is followed successively by 180 DEG C, 185 DEG C, 185 DEG C.
Embodiment 3：
63.2 parts of polypropylene, 30 parts of tossa, 5 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
1 part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, it is mixed in high speed
Mix 5min in clutch, tossa Jing after 5%NaOH solution, coupling agent treatment, with the polypropylene for preparing and each component auxiliary agent
Mixture together adds the mixing chamber of banbury, carries out mixing fusion treatment, rotor to which by the rotation of closed-smelting machine rotor
Rotating speed is 24r/min, and the temperature of kneading chamber is set in 185 DEG C, and mixing time is 45min, by banburying mixed lump material
Double wrist spouts are transferred to immediately, which are carried out extrude by single screw extrusion machine, air-cooled, pelletize, wherein single screw extrusion machine
It is divided into three stage control temperature, each section of temperature is followed successively by 180 DEG C, 185 DEG C, 185 DEG C from spout to head.
Embodiment 4：
53.2 parts of polypropylene, 40 parts of tossa, 5 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
1 part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, it is mixed in high speed
Mix 5min in clutch, tossa Jing after 5%NaOH solution, coupling agent treatment, with the polypropylene for preparing and each component auxiliary agent
Mixture together adds the mixing chamber of banbury, carries out mixing fusion treatment, rotor to which by the rotation of closed-smelting machine rotor
Rotating speed is 24r/min, and the temperature of kneading chamber is set in 185 DEG C, and mixing time is 45min, by banburying mixed lump material
Double wrist spouts are transferred to immediately, which are carried out extrude by single screw extrusion machine, air-cooled, pelletize, wherein single screw extrusion machine
It is divided into three stage control temperature, each section of temperature is followed successively by 180 DEG C, 185 DEG C, 185 DEG C from spout to head.
Embodiment 5：
42.7 parts of polypropylene, 50 parts of tossa, 5 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
1.5 parts, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, at a high speed
Mix 5min in blender, tossa is helped with each component with the polypropylene for preparing Jing after 5%NaOH solution, coupling agent treatment
Agent composition together adds the mixing chamber of banbury, carries out mixing fusion treatment to which by the rotation of closed-smelting machine rotor, turns
Rotor speed is 24r/min, and the temperature of kneading chamber is set in 185 DEG C, and mixing time is 45min, by banburying mixed block
Material is transferred to double wrist spouts immediately, which is carried out extrude by single screw extrusion machine, air-cooled, pelletize, wherein Single screw extrusion
Machine is divided into three stage control temperature, and from spout to head, each section of temperature is followed successively by 180 DEG C, 185 DEG C, 185 DEG C.
Embodiment 6：
33.2 parts of polypropylene, 60 parts of tossa, 5 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
1 part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, it is mixed in high speed
Mix 5min in clutch, tossa Jing after 5%NaOH solution, coupling agent treatment, with the polypropylene for preparing and each component auxiliary agent
Mixture together adds the mixing chamber of banbury, carries out mixing fusion treatment, rotor to which by the rotation of closed-smelting machine rotor
Rotating speed is 24r/min, and the temperature of kneading chamber is set in 185 DEG C, and mixing time is 45min, by banburying mixed lump material
Double wrist spouts are transferred to immediately, which are carried out extrude by single screw extrusion machine, air-cooled, pelletize, wherein single screw extrusion machine
It is divided into three stage control temperature, each section of temperature is followed successively by 180 DEG C, 185 DEG C, 185 DEG C from spout to head.
Comparative example 1
75.7 parts of polypropylene, 20 parts of tossa, 3 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
0.5 part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, Corchorus olitorius L. is fine
Dimension mixes in super mixer together with polypropylene and its each component mixture Jing after 5%NaOH solution, coupling agent treatment
5min, carries out melting extrusion pelletize into double screw extruder, and wherein each area's expressing technique of twin screw exists：One 160 DEG C of area, two
170 DEG C of area, three 180-185 DEG C of areas, four 170 DEG C of areas, double screw extruder rotating speed are 400r/min.
Comparative example 2
75.7 parts of polypropylene, 20 parts of wood powder, 3 parts of polypropylene grafted maleic anhydride, KH550 0.5 are weighed by mass percentage
Part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, put at a high speed
Mix 5min in blender, after mix homogeneously, melting extrusion pelletize, wherein each area of twin screw are carried out into double screw extruder
Expressing technique exists：One 160 DEG C of area, two 170 DEG C of areas, three 180-185 DEG C of areas, four 170 DEG C of areas, double screw extruder rotating speed is
400r/min。
Comparative example 3
75.7 parts of polypropylene, 20 parts of Pulvis Talci, 3 parts of polypropylene grafted maleic anhydride, KH550 are weighed by mass percentage
0.5 part, 0.3 part of antioxidant DSTP, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168,0.2 part of calcium stearate, put into
Mixing 5min in super mixer, after mix homogeneously, melting extrusion pelletize being carried out into double screw extruder, wherein twin screw is each
Each area's expressing technique exists：One 160 DEG C of area, two 170 DEG C of areas, three 180-185 DEG C of areas, four 170 DEG C of areas, double screw extruder rotating speed is
400r/min。
Below to six embodiments above described and the jute fiber reinforced polypropylene composite wood in comparative example 1,2,3
Material, wood powder reinforced polypropylene composite, talc reinforced polypropylene compound material carry out performance test, specifically, will
The above-mentioned particulate material for completing pelletize is dried 2 hours in 80 DEG C of convection oven, is then being injected into dried particle
Injection mo(u)lding is carried out on type machine, performance test is then carried out.
Tensile strength is tested according to ASTM D638 standards, batten size be 170*13*3.22mm, draw speed
50mm/min, bending strength and bending moduluses are tested according to ASTM D790 standards, and batten size is 127*12.7*
3.22mm, span 56mm, rate of bending is 2mm/min, and notch impact strength is tested according to ASTMD256 standards, batten chi
It is very little for 63.5*12.7*3.22mm, notch depth for sample thickness 1/3rd.
Table 1
Each key component content (weight/mass percentage composition) in embodiment and comparative example
Table 2
Embodiment and comparative example material properties test data
Found out by data in embodiment in above-mentioned table, the Huang of the preparation that combined with Single screw extrusion technique using banburying process
Jute fiber reinforced polypropylene composite has higher mechanical property, and in embodiment 5, material stretch moduluses can be left to 7000
The right side, and with the raising of tossa content, the intensity and modulus of jute fiber reinforced polypropylene composite also gradually increase；
Comparing embodiment 5 and 6 is it is found that when flaxen fiber component height is to 60 parts, material modulus and intensity slightly decline, and illustrate Corchorus olitorius L.
There is preferably combination property, comparing embodiment 2 and embodiment 3 it is found that compatilizer maleic anhydride when fiber is 50 component
The addition of graft polypropylene and coupling agent KH550, can make the preferable mechanical property of jute fiber reinforced polypropylene composite material exhibits；
Simultaneously comparing embodiment 1 with comparative example 1 it is found that under identical flaxen fiber content, using banburying process and Single screw extrusion work
Skill combine than twin screw extrusion process prepare jute fiber reinforced polypropylene composite there is preferable mechanical property,
Tossa is possibly due to not through twin screw high speed shear, damages less caused；Comparing embodiment 1 and comparative example 2,3
It is found that under identical filling enhancement component content, tossa prepared by the present invention strengthens the combination property of composite
Strengthen preferable than traditional wood powder and talc, density advantages performance is obvious.
Claims (9)
1. a kind of high-performance jute fiber reinforced polypropylene composite, it is characterised in that：Including the raw material of following weight portion meter：
Polypropylene：30-80；
Tossa：20-60；
Compatilizer：1-10；
Coupling agent：0.5-2；
Antioxidant：0.1-1；
Lubricant：0.2-1.
2. a kind of high-performance jute fiber reinforced polypropylene composite according to claim 1, it is characterised in that：It is described
Polypropylene matrix resin adopt HOPP, melt index is 12g/10min.
3. a kind of high-performance jute fiber reinforced polypropylene composite according to claim 1, it is characterised in that：It is described
Tossa be modified tossa, from the chopped strand of natural fiber, length is 5mm, using 5% NaOH alkali liquor
Immersion treatment, the drying and processing at 80 DEG C of the tossa after alkali process, carries out surface painting to fiber using silane coupler
Process is covered, modified tossa is obtained.
4. a kind of high-performance jute fiber reinforced polypropylene composite according to claim 1, it is characterised in that：It is described
Compatilizer adopt polar monomer graft polymer, graft polymers matrix to select polyethylene or polypropylene, grafted monomers to select
Maleic anhydride, i.e., compatilizer used are polypropylene grafted maleic anhydride.
5. a kind of high-performance jute fiber reinforced polypropylene composite according to claim 1, it is characterised in that：It is described
One kind in the silane coupler and titanate coupling agent of coupling agent.
6. a kind of high-performance jute fiber reinforced polypropylene composite according to claim 5, it is characterised in that：It is described
Coupling agent be selected from APTES, 3- (the third oxygen of 2,3- epoxies) propyl trimethoxy silicane, γ-methyl-prop
One kind in alkene acryloxypropylethoxysilane trimethoxy silane.
7. a kind of high-performance jute fiber reinforced polypropylene composite according to claim 1, it is characterised in that：It is described
Antioxidant from four [β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, thio-2 acid octadecyl ester, β-
In the positive octadecanol ester of (3,5- di-tert-butyl-hydroxy phenyl) propanoic acid, three [2,4- di-tert-butyl-phenyl] phosphite ester one
Plant or two or more mixing.
8. a kind of high-performance jute fiber reinforced polypropylene composite according to claim 1, it is characterised in that：It is described
Calcium stearate of the lubricant in the in-lubricant, stearic amide, erucyl amide, the one kind in glycerol monostearate or
Two or more mixing；One or more mixing in Tissuemat E, liquid paraffin in external lubricant.
9. according to claim 1-8 one of arbitrarily described in high-performance jute fiber reinforced polypropylene composite preparation side
Method, it is characterised in that：Comprise the following steps：
(1) modification of tossa：
From natural fiber be chopped strand, length is 5mm, using 5% NaOH dipping by lye process, after alkali process
Tossa drying and processing at 80 DEG C, carries out surface-coated process to fiber using silane coupler, obtains modified fibre
Dimension：
(2) preparation of jute fiber reinforced polypropylene composite：
By proportion by weight by acrylic resin, antioxidant, lubricant, mixed at high speed 5min or so, the mixing after mix homogeneously
The mixing chamber for being added to banbury of thing particle batches time, then by the tossa being modified in step (1) similarly according to
Mixture same number is added in banbury, and period constantly carries out compaction treatment, and closed-smelting machine rotor is constantly rotated, is sufficiently mixed
Tossa and particulate material.The melting temperature of wherein banbury is arranged on 185 DEG C.By banburying mixed lump material immediately
Being transferred to double wrist spouts carries out feeding, which is carried out extrude by single screw extrusion machine, air-cooled, pelletize, and single screw rod is a diameter of
70mm, draw ratio are 10, and single screw extrusion machine is divided into three stage control temperature, and from spout to head, each section of temperature is followed successively by
180℃、185℃、185℃。
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