CN106928542A - Polypropylene/polyphenyl ether PP/PPO alloy and preparation method thereof - Google Patents
Polypropylene/polyphenyl ether PP/PPO alloy and preparation method thereof Download PDFInfo
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- CN106928542A CN106928542A CN201511029058.XA CN201511029058A CN106928542A CN 106928542 A CN106928542 A CN 106928542A CN 201511029058 A CN201511029058 A CN 201511029058A CN 106928542 A CN106928542 A CN 106928542A
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 76
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 58
- 239000000956 alloy Substances 0.000 title claims abstract description 36
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 28
- -1 Polypropylene Polymers 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920013636 polyphenyl ether polymer Polymers 0.000 title abstract 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005469 granulation Methods 0.000 claims abstract description 12
- 230000003179 granulation Effects 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 10
- 229920001400 block copolymer Polymers 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 70
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 70
- 229920001451 polypropylene glycol Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- HEAMQYHBJQWOSS-UHFFFAOYSA-N ethene;oct-1-ene Chemical compound C=C.CCCCCCC=C HEAMQYHBJQWOSS-UHFFFAOYSA-N 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 150000008065 acid anhydrides Chemical class 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 36
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 238000011056 performance test Methods 0.000 description 8
- 229920006351 engineering plastic Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000004793 Polystyrene Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000012745 toughening agent Substances 0.000 description 2
- 241000165940 Houjia Species 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 238000012661 block copolymerization Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006446 extruder reaction Methods 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a polypropylene/polyphenyl ether PP/PPO alloy and a preparation method thereof, wherein the polypropylene/polyphenyl ether PP/PPO alloy is prepared from the following raw materials, by weight, 70-93% of polypropylene PP, 5-20% of polyphenyl ether PPO and 2-10% of a compatilizer, wherein the compatilizer is a polymer of an ethylene-octene block copolymer grafted with maleic anhydride, and the grafting ratio of the maleic anhydride is 0.2-2 wt%. The raw materials are uniformly mixed according to the proportion and added into a double-screw extruder, and the PP/PPO alloy is prepared by melt reactive extrusion and granulation, wherein the temperature of the double-screw extruder is 210-270 ℃, the length-diameter ratio is 25-50, and the screw rotation speed is 180-revolution per minute. Because the novel compatilizer is adopted, the alloy material with high rigidity, heat resistance and high impact resistance can be prepared while the use amount of the polyphenyl ether is greatly reduced. The preparation process is simple, the production cost is low, and the product comprehensive performance is excellent.
Description
Technical field
The present invention relates to a kind of polypropylene/polyphenylene oxide PP/PPO alloys and preparation method thereof.
Background technology
The characteristics of polypropylene has excellent processing characteristics, anti-organic solvent and good acid and alkali corrosion, at the same it is light weight, inexpensive,
It is widely used in shell of inner and outer decorative parts of automobile, electronics and household electronic products etc..Much applied now by modified
Occasion instead of engineering plastics, be most fast, the most widely used universal thermoplastic of current growth rate.
Polypropylene rigid-tough balance can be improved and be improved by production technology and catalyst technology, have product
More excellent combination property, but product development difficulty is larger, it is difficult to while meet some fields of market to material high rigidity,
The requirement of high-impact and heat resistance.And polyphenylene oxide is also a kind of engineering plastics of excellent performance, mechanical strength is high, heat resistance
Good, dimensional stability and can have excellent water-resistance, but its poor solvent resistance, the easy stress cracking of product, therefore using both advantages
Low density, good mechanical performance, solvent resistance good polypropylene/polyphenylene oxide alloy (being abbreviated as PP/PPO alloys) can be prepared
Material, substitution part price engineering plastics higher.
Because PPO is non-crystalline polymer, PP/PPO alloys belong to typical noncrystalline and crystallizing blend, due to both
Differing melt viscosities are larger, and its interfacial viscosity is poor, and the alloy of preparation lacks morphological stability, is easy to be separated, and causes common PP/
PPO alloy material poor mechanical properties.To improve polyphenylene oxide and polyacrylic compatibility, in terms of compatilizer selection and processing technology
Numerous researchs are carried out.Chinese patent CN102993566A is disclosed two kinds of solubilizer of addition and is changed by the method for reactive compatibilization
Kind polyphenylene oxide and polypropylene compatible；CN102719014A is disclosed and prepare first polyphenylene oxide, compatilizer and polystyrene premix
Thing, then add polypropylene to prepare polyphenylene oxide polypropene composition by side feeding；CN1484677A is disclosed with " polyphenylene oxide tree
Fat, polystyrene, hydrogenated polyvinyl-BS melt blending form the first blend, and this first is total to
Mixed thing carries out melt blending and forms the second blend with polyolefin " prepare compatibilized polyphenylene oxide polyolefin composition；
CN103450561A describes a kind of high temperature resistant high impact polyphenylene ether/polypropylene alloy material and preparation method thereof, and the invention is adopted
Compound compatilizer and the increasing such as block copolymer (compatilizer A) and LDPE-g-PS with hydrogenated styrene and butadiene (compatilizer B)
Tough dose (POE or ethylene propylene copolymer) improves alloy phase stability and material erosion-resisting characteristics.
CN103756141A describes a kind of polypropylene/polyphenylene oxide alloy and preparation method thereof, is mainly led to by introducing styrene monomer
Radical polymerization is crossed in extruder reaction generation PP-g-PS compatilizers, PP/PPO conjunctions are then prepared with PPO blending extrusions
Gold.But the method, using the styrene monomer that smell is larger, limits the application of the method in twin screw extrusion.This
In PP/PPO alloy materials disclosed in outer above-mentioned patent, PPO adds content (typically between 20%-60%) higher, modified
Material it is relatively costly, limit the application of PP/PPO alloy materials.
The content of the invention
The present invention with new maleic anhydride grafted polymer as compatilizer and toughener, using Reaction extrusion technique by phase
Hold agent to be grafted on PPO or PP polymer chains, using a small amount of PPO come MODIFIED PP, prepare modified PP/PPO alloy materials
Material, preparation process is simple, production cost are relatively low, and the polypropylene alloy material of preparation can substitute other engineering plastics applications and be in
The fields such as electric shell, automotive upholstery.
Polypropylene of the present invention/polyphenylene oxide PP/PPO alloys, with weight percent number scale, its raw material includes：
Polypropylene (PP) 70-93%
Polyphenylene oxide (PPO) 5-20%
Compatilizer 2-10%
Polypropylene of the present invention is melt flow rate (MFR) (test condition：230 DEG C, 2.16Kg) 2-30g/min it
Between HOPP, homopolymerization isotacticity be more than 97%, such as Petrochina Lanzhou Petrochemical Company H8020 and H8010, South Korea's Samsung
HJ730 etc..
The compatilizer is the polymer (OBC-g-MAH) of ethylene octene block copolymer grafted maleic anhydride, and OBC's is soft
Section can provide good cohesive, while hard section can provide heat resistance, the polymer after grafted maleic anhydride not only can be with
Improve the compatibility between PP, PPO, and toughening modifying can be carried out to PP/PPO alloys.The ethylene octene block copolymerization
Thing (OBC), such as Tao Shi Infuse OBC block copolymers 9100,9107,9000 etc..The grafting rate of maleic anhydride is in 0.2-
Between 2wt%, OBC-g-MAH can be prepared using existing document.Such as refer to Chemical Industry in Guangzhou vol.39 the 23rd in 2011
Phase《Twin screw extrusion process is on maleic anhydride grafting POE grafting rate influence researchs》The preparation method carries out OBC-g-MAH's
Prepare：After MAH and initiator two (t-butylperoxyisopropyl) benzene (DCP) are well mixed with OBC block copolymers, will be mixed
Compound is added in extruder hopper, the melting extrusion under uniform temperature and screw speed, and it is that can obtain OBC-g-MAH to granulate
Polymer, the grafting rate of maleic anhydride can be adjusted by screw speed and maleic anhydride addition.It is preferred that maleic anhydride
Grafting rate is between 0.4-1.5wt%.
The polyphenylene oxide (PPO) can use commercially available injection grade PPO, such as U.S. GE companies PX1005, SE1X-701,
SE100X-701, HS2000X, N225X resin or Japanese Asahi Kasei Corporation 540Z, G702V, S201A etc..
The present invention also provides the preparation method of polypropylene/polyphenylene oxide PP/PPO alloys, and specific steps include：
With weight percent number scale, weighed according to the proportioning of polypropylene 70-93%, polyphenylene oxide 5-20%, compatilizer 2-10%
Raw material；
Polypropylene, polyphenylene oxide, compatilizer are well mixed in super mixer；
Well mixed raw material is placed in twin-screw, is extruded through molten reactive, granulation, twin-screw extrusion temperature control
Between 210 DEG C -270 DEG C, between 25-50, the reaction time is 1-3 minutes, 180-600 revs/min of screw speed to draw ratio.
The present invention with ethylene octene block copolymer grafted maleic anhydride as compatilizer, using reactivity be coextruded method
Polypropylene/polyphenylene oxide (PP/PPO) alloy is prepared, excellent combination property is obtained while polyphenylene oxide usage amount is greatly reduced
Alloy material.The method preparation process is simple, production cost are relatively low, polypropylene/polyphenylene oxide (PP/PPO) alloy tool of preparation
There is rigid, preferable heat resistance and shock resistance higher.After testing, the alloy tensile intensity >=34MPa, bending modulus >=
1800MPa, 23 DEG C of notch impact strength >=5kJ/m2, heat distortion temperature (0.45MPa) >=120 DEG C, the composite can replace
Applied in fields such as appliance shell, automotive upholsteries for other engineering plastics.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, but the invention is not limited in following embodiments.
The preparation of compatilizer ethylene octene block copolymer grafted maleic anhydride polymer (OBC-g-MAH)
According to OBC (Tao Shi Infuse 9000)：Maleic anhydride：Initiator DCP=100:1:0.1 part by weight weighs 3
Kilogram, the various components in formula are well mixed in high mixer, by the uniform feeding of feeding motor, then squeezed by twin-screw
Going out machine (L/D=34) carries out extruding pelletization, feeding capacity 22 (0-40 intervals controls), 300 revs/min of screw speed, extrusion temperature
190℃.Prepare ethylene octene block copolymer grafted maleic anhydride polymer (OBC-g-MAH), polymer maleic anhydride
Grafting rate be 0.59%.By adjusting screw rod rotating speed to 257 revs/min, other conditions are constant to obtain maleic anhydride grafting ratio
It is 0.43%；Regulation adds component and consumption, according to OBC (Tao Shi Infuse9100)：Maleic anhydride：DCP=100:2:0.15
Add, other conditions are constant, and maleic anhydride grafting ratio increases to 1.3%.
Embodiment 1
By 3 kilograms of polypropylene (H8020, MFR 16.7g/10min, isotacticity 97.3%), 300 grams of PPO (540Z), 150
Gram OBC-g-MAH (maleic anhydride grafting ratio is 1.3%) is well mixed in high-speed mixer, and it is 34 to be subsequently adding to draw ratio
Twin-screw carries out Reaction extrusion granulation, and PP/PPO alloys are obtained, and the performance test results are shown in Table 1.Twin screw extrusion process is as follows,
Extrusion temperature：One 230 DEG C of area, two 250 DEG C of areas, three 265 DEG C of areas, four 265 DEG C of areas, five 265 DEG C of areas, six 265 DEG C of areas, seven areas 265
DEG C, eight 260 DEG C of areas, nine 240 DEG C of areas；Screw speed is 350 revs/min.
Embodiment 2
By 3 kilograms of polypropylene (H8020), 200 grams of PPO (540Z), 100 grams of OBC-g-MAH, (maleic anhydride grafting ratio is
1.3%), mix 1 minute in high-speed mixer, being subsequently adding to the twin-screw that draw ratio is 34 carries out Reaction extrusion granulation,
PP/PPO alloys are obtained, the performance test results are shown in Table 1.Twin screw extrusion process is as follows, extrusion temperature：One 210 DEG C of area, 2nd area
250 DEG C, three 255 DEG C of areas, four 255 DEG C of areas, five 255 DEG C of areas, six 255 DEG C of areas, seven 250 DEG C of areas, eight 240 DEG C of areas, nine 230 DEG C of areas；
Screw speed is 450 revs/min.
Embodiment 3
By 3 kilograms of polypropylene (H8020), 200 grams of PPO (540Z), 100 grams of OBC-g-MAH, (maleic anhydride grafting ratio is
0.59%), mix 1 minute in high-speed mixer, being subsequently adding the twin-screw that draw ratio is 34 carries out Reaction extrusion granulation, system
PP/PPO alloys are obtained, the performance test results are shown in Table 1.Twin screw extrusion process is as follows, extrusion temperature：One 210 DEG C of area, two areas 250
DEG C, three 255 DEG C of areas, four 255 DEG C of areas, five 255 DEG C of areas, six 255 DEG C of areas, seven 250 DEG C of areas, eight 240 DEG C of areas, nine 230 DEG C of areas；Screw rod
Rotating speed is 350 revs/min.
Embodiment 4
By 3 kilograms of polypropylene (H8010, MFR 11g/10min, 97.5%), 210 grams of PPO (PX1005X), 100 grams of OBC-
G-MAH (maleic anhydride grafting ratio is 1.3%) mixes 1 minute in high-speed mixer, is subsequently adding the twin-screw that draw ratio is 34
Reaction extrusion granulation is carried out, PP/PPO alloys are obtained, the performance test results are shown in Table 1.Twin screw extrusion process is as follows, extrusion temperature
Degree：One 210 DEG C of area, two 250 DEG C of areas, three 255 DEG C of areas, four 255 DEG C of areas, five 255 DEG C of areas, six 255 DEG C of areas, seven 250 DEG C of areas, 8th area
240 DEG C, nine 230 DEG C of areas；Screw speed is 350 revs/min.
Embodiment 5
By 3 kilograms of polypropylene (H8010), 200 grams of PPO (GX503), 150 grams of OBC-g-MAH, (maleic anhydride grafting ratio is
1.3%) mix 1 minute in high-speed mixer, being subsequently adding the twin-screw that draw ratio is 34 carries out Reaction extrusion granulation, be obtained
PP/PPO alloys, the performance test results are shown in Table 1.Twin screw extrusion process is as follows, extrusion temperature：One 210 DEG C of area, two 250 DEG C of areas,
Three 255 DEG C of areas, four 255 DEG C of areas, five 255 DEG C of areas, six 255 DEG C of areas, seven 250 DEG C of areas, eight 240 DEG C of areas, nine 230 DEG C of areas；Screw rod turns
Speed is 450 revs/min.
Embodiment 6
By 3 kilograms of polypropylene (H8010, MFR 11g/10min, isotacticity 97.5%), 200 grams of PPO (540Z), 100 grams
OBC-g-MAH (maleic anhydride grafting ratio is 1.3%) mixes 1 minute in high-speed mixer, be subsequently adding draw ratio be 34 it is double
Screw rod carries out Reaction extrusion granulation, and PP/PPO alloys are obtained, and the performance test results are shown in Table 1.Twin screw extrusion process is as follows, squeezes
Go out temperature：One 210 DEG C of area, two 250 DEG C of areas, three 255 DEG C of areas, four 255 DEG C of areas, five 255 DEG C of areas, six 255 DEG C of areas, seven 250 DEG C of areas,
Eight 240 DEG C of areas, nine 230 DEG C of areas；Screw speed is 350 revs/min.
Embodiment 7
It is by 3 kilograms of polypropylene (H8020), 200 grams of PPO (540Z), 100 grams of OBC-g-MAH maleic anhydride grafting ratios
0.43%) mix 1 minute in high-speed mixer, being subsequently adding the twin-screw that draw ratio is 34 carries out Reaction extrusion granulation, system
PP/PPO alloys are obtained, the performance test results are shown in Table 1.Twin screw extrusion process is as follows, extrusion temperature：One 200 DEG C of area, two areas 210
DEG C, three 240 DEG C of areas, four 240 DEG C of areas, five 240 DEG C of areas, six 240 DEG C of areas, seven 240 DEG C of areas, eight 230 DEG C of areas, nine 210 DEG C of areas；Screw rod
Rotating speed is 300 revs/min.
Embodiment 8
By 3 kilograms of polypropylene (H8020), 300 grams of PPO (GX503), 150 grams of OBC-g-MAH, (maleic anhydride grafting ratio is
0.59%) mix 1 minute in high-speed mixer, being subsequently adding the twin-screw that draw ratio is 34 carries out Reaction extrusion granulation, system
PP/PPO alloys are obtained, the performance test results are shown in Table 1.Twin screw extrusion process is as follows, extrusion temperature：One 200 DEG C of area, two areas 210
DEG C, three 240 DEG C of areas, four 240 DEG C of areas, five 240 DEG C of areas, six 240 DEG C of areas, seven 240 DEG C of areas, eight 230 DEG C of areas, nine 210 DEG C of areas；Screw rod
Rotating speed is 350 revs/min.
Comparative example 9
H8020 tests its performance by respective standard, as a result see the table below 1.
Comparative example 10
By 3 kilograms of polypropylene (H8020), (maleic anhydride is grafted with 100 grams of maleic anhydride graft phenylethenes (OBC-g-MAH)
Rate is 0.59%), in high-speed mixer to carry out mixing 1 minute, and being subsequently adding to the twin-screw that draw ratio is 34 carries out reactivity
Extruding pelletization, twin screw extrusion process is as follows, extrusion temperature：One 190 DEG C of area, two 190 DEG C of areas, three 200 DEG C of areas, four 200 DEG C of areas,
Five 200 DEG C of areas, six 200 DEG C of areas, seven 200 DEG C of areas, eight 190 DEG C of areas, nine 190 DEG C of areas；Screw speed is 350 revs/min.By corresponding
Standard testing its performance, as a result see the table below 1.
Comparative example 11
By 3 kilograms of polypropylene (H8020) and 200 grams of PPO (540Z), mixing 1 minute, Ran Houjia are carried out in high-speed mixer
Entering to the twin-screw that draw ratio is 34 carries out Reaction extrusion granulation, and twin screw extrusion process is as follows, extrusion temperature：One area 230
DEG C, two 250 DEG C of areas, three 275 DEG C of areas, four 275 DEG C of areas, five 275 DEG C of areas, six 275 DEG C of areas, seven 275 DEG C of areas, eight 260 DEG C of areas, 9th area
240℃；Screw speed is 350 revs/min.Its performance is tested by respective standard, 1 is as a result see the table below.
The embodiment 1-8 of table 1 and comparative example's 9-11 test results
Be can be seen that from test result, modified PP/PPO is prepared as compatilizer, toughener using OBC-g-MAH
Alloy, hence it is evident that improve impact property, bending strength and the heat distortion temperature of PP resins, make rigidity, the toughness of PP/PPO alloys
And heat resistance is improved, material is substituted other engineering plastics and apply in appliance shell, automotive upholstery etc.
Field.
Claims (2)
1. a kind of polypropylene/polyphenylene oxide PP/PPO alloys, with weight percent number scale, its raw material includes：
Polypropylene PP 70-93%
Polyphenylene oxide PPO 5-20%
Compatilizer 2-10%
Wherein, described polypropylene is HOPP of the melt flow rate (MFR) between 2-30g/min, and melt flow rate (MFR) is surveyed
Strip part is 230 DEG C, 2.16Kg, and homopolymerization isotacticity is more than 97%；The compatilizer is that ethylene octene block copolymer is grafted horse
Carry out the polymer of acid anhydrides, the grafting rate of maleic anhydride is 0.2-2wt%.
2. the preparation method of a kind of polypropylene/polyphenylene oxide PP/PPO alloys, wherein, specific steps include：
(1) with weight percent number scale, original is weighed according to the proportioning of polypropylene 70-93%, polyphenylene oxide 5-20%, compatilizer 2-10%
Material；
(2) raw material that will be weighed is well mixed；
(3) by well mixed raw material addition double screw extruder, extruded through molten reactive, granulation, PP/PPO is obtained and closes
Gold, double screw extruder temperature control between 210 DEG C -270 DEG C, draw ratio between 25-50, screw speed 180-600 turn/
Minute.
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| 王尹杰等: "聚苯醚/聚丙烯合金的制备及其性能研究", 《塑料工业》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912945A (en) * | 2021-12-08 | 2022-01-11 | 中化泉州能源科技有限责任公司 | Low-ash low-odor high-melt-index polypropylene with narrow molecular weight distribution and preparation method thereof |
| CN113912945B (en) * | 2021-12-08 | 2023-06-16 | 中化泉州能源科技有限责任公司 | Low ash low odor narrow molecular weight distribution high melt index polypropylene and preparation method thereof |
| WO2024079430A1 (en) * | 2022-10-14 | 2024-04-18 | Centre National De La Recherche Scientifique | Production of a liquid organic electrolyte metal-ion battery component, and electrochemical cell comprising such a component |
| FR3140998A1 (en) * | 2022-10-14 | 2024-04-19 | Centre National De La Recherche Scientifique | PRODUCTION OF A METAL-ION BATTERY COMPONENT WITH LIQUID ORGANIC ELECTROLYTE, AND ELECTROCHEMICAL CELL COMPRISING SUCH A COMPONENT. |
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