CN106496769A - A kind of isomerism cross-linking method containing L POSS crosslinking agents is modified to reclaim PP and preparation method thereof - Google Patents
A kind of isomerism cross-linking method containing L POSS crosslinking agents is modified to reclaim PP and preparation method thereof Download PDFInfo
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- CN106496769A CN106496769A CN201610839542.7A CN201610839542A CN106496769A CN 106496769 A CN106496769 A CN 106496769A CN 201610839542 A CN201610839542 A CN 201610839542A CN 106496769 A CN106496769 A CN 106496769A
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- 238000004132 cross linking Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000003431 cross linking reagent Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 16
- 239000011256 inorganic filler Substances 0.000 claims abstract description 10
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 10
- 239000012745 toughening agent Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000005453 pelletization Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 238000007605 air drying Methods 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000004971 Cross linker Substances 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 6
- 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 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- DJEQZVQFEPKLOY-UHFFFAOYSA-N N,N-dimethylbutylamine Chemical class CCCCN(C)C DJEQZVQFEPKLOY-UHFFFAOYSA-N 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 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 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims description 2
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 150000004756 silanes Chemical class 0.000 claims 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 230000008439 repair process Effects 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 description 37
- -1 Polypropylene Polymers 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 9
- 239000002699 waste material Substances 0.000 description 5
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910018557 Si O Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229910018540 Si C Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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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
- C08L2312/00—Crosslinking
- C08L2312/08—Crosslinking by silane
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Abstract
A kind of isomerism cross-linking method containing L POSS crosslinking agents is modified to reclaim PP and preparation method thereof, is related to a kind of plastic material and preparation method thereof, and method of modifying of the present invention is：PP 80 DEG C under the conditions of forced air drying 3～4 hour will be reclaimed first;Homemade micro- crosslinking masterbatch are first put into Universalpulverizer grinding in planetary ball mill is placed into until the particle diameter of crosslinking material reaches 10～50 μm, then dried recovery PP, homemade micro- crosslinking masterbatch, toughener, inorganic filler are weighed by weight ratio and puts into 4～6min of high-speed mixer and mixing, extruding pelletization obtains final product reworked material at 160 DEG C 230 DEG C with double screw extruder.Technical scheme can realize the effect of the mechanical property MODIFIED PP such as enhancing, toughness reinforcing simultaneously, and being introduced in the regenerative process that can make MODIFIED PP for isomerism cross-linking method need not add compatilizer that the performance of reworked material can also be made fine.
Description
Technical field
The present invention relates to a kind of plastic material and preparation method thereof, more particularly to a kind of containing the same of L-POSS crosslinking agents
Matter isomery cross-linking method is modified to reclaim PP and preparation method thereof.
Background technology
Polypropylene is a kind of obtained thermoplastic resin by propylene polymerization, be kind most light in all plastics at present it
One, nontoxic, odorless, tasteless, possess excellent surface rigidity, impact strength and the characteristic such as anti-scratch, and there is no ring in PP
Border stress cracking problem, so polypropylene is widely used in packing film, electric equipment, field of furniture.
With the expansion and the increase of usage amount of polypropylene application, waste and old polypropylene also grows with each passing day, and waste and old poly- third
There is degradation with aging in alkene, its physical property is also greatly limited, is only used for far away from virgin material polypropylene, its application
Make the product of low performance.Can waste and old polypropylene regeneration use, be more beneficial for the sustainable development of plastic industry, will waste and old gather
Propylene is regenerated for manufacturing polypropylene pipe, can meet demand of the market to polypropylene pipe, can solve environmental problem again, section
About resource, it is solve problem above basic that therefore waste and old polypropylene reclaims modification technology.
Reclaiming PP needs a kind of crosslinking agent of excellent properties modified to which, and therefore we have synthesized a kind of silicon containing L-POSS
Alkane crosslinking agent is modified to which.L-POSS is a kind of siloxanes with trapezium structure, and its molecular structure is with Si-O as inorganic interior
Core, is constituted with the trapezoidal network molecular structure containing the larger Si-O keys of bond energy and the bonded formation of Si-C, this molecular structure
There is good high temperature resistant and mechanical property, the Si-H in its molecular structure can be with the ethene base junction in vinyl silanes crosslinking agent
The silane crosslinker formed containing L-POSS is closed, as this crosslinking agent is simultaneously containing L-POSS and silane composition, therefore this is one
The crosslinking agent for having both performances concurrently is planted, i.e., there is the novel crosslinker of high temperature resistant and cross-linking properties simultaneously, met and PP is changed
Property reclaim.
Content of the invention
It is an object of the invention to provide a kind of isomerism cross-linking method containing L-POSS crosslinking agents modified reclaim PP and
Its preparation method, the present invention are carried so as to reach by reclaiming PP with the isomerism cross-linking method containing L-POSS crosslinking agents is modified
The high purpose for reclaiming PP mechanical properties, its technological operation is simple and can produce recycled plastic in enormous quantities, meets market
Industrial requirement and sustainable development.
The purpose of the present invention is achieved through the following technical solutions：
A kind of isomerism cross-linking method containing L-POSS crosslinking agents is modified to reclaim PP, the structure containing L-POSS silane crosslinkers
Formula is as follows：
.
A kind of isomerism cross-linking method containing L-POSS crosslinking agents is modified to reclaim PP, based on mass weight part, includes：
Reclaim 100 parts of PP；
3～10 parts of toughener；
10～30 parts of crosslinking masterbatch；
5～10 parts of inorganic filler.
A kind of described isomerism cross-linking method containing L-POSS crosslinking agents is modified to reclaim PP, and described crosslinking masterbatch are
It is made up of A material B material and three part of product aqua；
A expects composition: PP
Silane crosslinker containing L-POSS；
Initiator（Cumyl peroxide（DCP））；
B expects composition： PP
Catalyst（Dibutyl tin laurate）；
Antioxidant（Antioxidant 1010）；
Produce aqua composition：Acid and metal oxide with（1：1）Ratio mixes.
A kind of described isomerism cross-linking method containing L-POSS crosslinking agents is modified to reclaim PP, described L-POSS silane
Crosslinking agent is the method that polyaddition reaction occurs with L POSS and vinyltrimethoxy silane, and the silane for synthesizing derives
Thing；Inorganic filler is calcium carbonate, at least one in talcum powder, preferably calcium carbonate；Initiator is benzoyl peroxide（BPO）With
Cumyl peroxide（DCP）In at least one, preferred cumyl peroxide.
A kind of described isomerism cross-linking method containing L-POSS crosslinking agents is modified to reclaim PP, and described toughener is
At least one in POE, polyvinyl acetate emulsion, polyvinyl alcohol, preferably POE；Antioxidant is antioxidant 1010, antioxidant 1076
In at least one, preferred antioxidant 1010；Catalyst is dibutyl tin laurate, triethylamine, Tri-n-Propylamine, three positive fourths
At least one of amine, N, N- dimethyl butylamines, preferably dibutyl tin laurate；It is acid and metal oxide with one to produce aqua
Certainty ratio mixes, preferably stearic acid and zinc oxide.
The preparation method of PP is reclaimed in a kind of isomerism cross-linking method modification containing L-POSS crosslinking agents, is comprised the following steps：
A, weigh 95 parts of A material by mass fraction, after 4.5 parts of B material mixing, be put into extruding pelletization in double screw extruder, then again with
0.5 part is produced aqua and is well mixed and is put into extruding pelletization in double screw extruder and forms micro- crosslinking masterbatch；
B, the micro- crosslinking masterbatch in A portions are first put into Universalpulverizer grinding are placed in planetary ball mill until crosslinking material
Till particle diameter reaches 10～50 μm；
C, PP forced air drying 3～4 hours under the conditions of 80 DEG C will be reclaimed, by weight ratio by micro- crosslinking masterbatch, toughener, be returned
Receive PP, inorganic filler and put into high-speed mixer high speed mixing 4～6 minutes so as to uniform mixing；
D, the material being well mixed in above-mentioned high-speed mixer is added to screw slenderness ratio for 36, rotating speed is the double of 200r/min
In screw extruder, in the molten state using twin-screw Strong shear power by the control of the average grain diameter of micro- crosslinking masterbatch 10～
50 μm, while crosslinking material, toughener, recovery PP and inorganic filler are well mixed, above-mentioned compound extruding pelletization is obtained
Regeneration PP.
A kind of modified preparation method for reclaiming PP of described isomerism cross-linking method containing L-POSS crosslinking agents, described pair of spiral shell
The extruder temperature control of bar extruder is between 160 DEG C -230 DEG C.
Advantages of the present invention with effect is：
Activeness and quietness modification of the present invention is a kind of effective way for improving plastics mechanical property, and its technological operation is simple and can be by
Recycled plastic is produced in enormous quantities, meets industrial requirement and the sustainable development in market, therefore, lacking for prior art
Sunken this method reclaims PP power by reclaiming PP with the isomerism cross-linking method containing L-POSS crosslinking agents is modified so as to reach to improve
Learn the purpose of performance.
Description of the drawings
Fig. 1 is the equation that L-POSS and vinyltrimethoxy silane are synthesized out novel crosslinker.
Specific embodiment
With reference to embodiment, the present invention is described in detail.
Embodiment 1-3, in each embodiment, the weight distribution ratio of each component is as shown in table 1.Each component is weighed by proportioning,
Mix 5 minutes in homogenizer, discharging is placed in the raw material of compound in double screw extruder and makes material, extruder temperature
Between 160 DEG C -230 DEG C, rotating speed is 200r/min for control.Batten is prepared, by corresponding standard testing（It is shown in Table 2）, performance knot
Fruit is shown in Table 3.
Table 1：Formula composition (part of embodiment 1-3）
Table 2：Mechanics Performance Testing standard
Table 3：The Mechanics Performance Testing of PP feed backs in embodiment 1-3
From 3 embodiment 1-3 of table and the performance test results of comparative example 1, we understand：Not using micro- crosslinking masterbatch when
Wait, being added in for other modified additives improves the tensile property that can reduce material while reclaiming PP impact properties, and prepared
Micro- crosslinking masterbatch particle diameter be crushed to 10～50 μm after again crosslinking material is put into recovery PP, toughener, inorganic filler etc.
Shear-mixed in the double screw extruder of big L/D ratio, this method can also improve which while improving and reclaiming PP toughness and draw
Stretch performance, it is achieved that isomerism cross-linking method carries out toughness reinforcing simultaneously, strengthens modified effect to reclaiming PP.
The present invention is further illustrated above by specific embodiment, but these embodiments are only exemplary
, any restriction is not constituted to protection scope of the present invention.It will be appreciated by those skilled in the art that in the spirit without departing from the present invention
In the case of protection domain, technical solutions and their implementation methods of the present invention can be carried out multiple equivalencings, modification or
Improve, these all should fall within the scope of protection of the present invention.Protection scope of the present invention is defined by appended claim.
Claims (7)
1. a kind of isomerism cross-linking method containing L-POSS crosslinking agents is modified reclaims PP, it is characterised in that containing L-POSS silicon
The structural formula of alkane crosslinking agent is as follows：
.
2. a kind of isomerism cross-linking method containing L-POSS crosslinking agents is modified reclaims PP, it is characterised in that by mass weight part
Meter, includes：
Reclaim 100 parts of PP；
3～10 parts of toughener；
10～30 parts of crosslinking masterbatch；
5～10 parts of inorganic filler.
3. a kind of isomerism cross-linking method containing L-POSS crosslinking agents according to claim 2 is modified reclaims PP, and which is special
Levy and be, described crosslinking masterbatch are made up of A material B material and three part of product aqua；
A expects composition: PP
Silane crosslinker containing L-POSS；
Initiator（Cumyl peroxide（DCP））；
B expects composition： PP
Catalyst（Dibutyl tin laurate）；
Antioxidant（Antioxidant 1010）；
Produce aqua composition：Acid and metal oxide with（1：1）Ratio mixes.
4. a kind of isomerism cross-linking method containing L-POSS crosslinking agents according to claim 2 is modified reclaims PP, and which is special
Levy and be, described L-POSS silane crosslinkers are that polyaddition reaction occurs with L POSS with vinyltrimethoxy silane
Method, the silane derivative for synthesizing；Inorganic filler is calcium carbonate, at least one in talcum powder, preferably calcium carbonate；Cause
Agent is benzoyl peroxide（BPO）And cumyl peroxide（DCP）In at least one, preferred cumyl peroxide.
5. a kind of isomerism cross-linking method containing L-POSS crosslinking agents according to claim 2 is modified reclaims PP, and which is special
Levy and be, described toughener is POE, polyvinyl acetate emulsion, at least one in polyvinyl alcohol, preferably POE；Antioxidant is
At least one in antioxidant 1010, antioxidant 1076, preferably antioxidant 1010；Catalyst be dibutyl tin laurate, three
At least one of ethamine, Tri-n-Propylamine, tri-n-butylamine, N, N- dimethyl butylamines, preferably dibutyl tin laurate；Produce aqua
It is that acid and metal oxide are mixed with certain proportion, preferably stearic acid and zinc oxide.
6. the preparation method of PP is reclaimed in a kind of isomerism cross-linking method modification containing L-POSS crosslinking agents, it is characterised in that included
Following steps：
A, weigh 95 parts of A material by mass fraction, after 4.5 parts of B material mixing, be put into extruding pelletization in double screw extruder, then again with
0.5 part is produced aqua and is well mixed and is put into extruding pelletization in double screw extruder and forms micro- crosslinking masterbatch；
B, the micro- crosslinking masterbatch in A portions are first put into Universalpulverizer grinding are placed in planetary ball mill until crosslinking material
Till particle diameter reaches 10～50 μm；
C, PP forced air drying 3～4 hours under the conditions of 80 DEG C will be reclaimed, by weight ratio by micro- crosslinking masterbatch, toughener, be returned
Receive PP, inorganic filler and put into high-speed mixer high speed mixing 4～6 minutes so as to uniform mixing；
D, the material being well mixed in above-mentioned high-speed mixer is added to screw slenderness ratio for 36, rotating speed is the double of 200r/min
In screw extruder, in the molten state using twin-screw Strong shear power by the control of the average grain diameter of micro- crosslinking masterbatch 10～
50 μm, while crosslinking material, toughener, recovery PP and inorganic filler are well mixed, above-mentioned compound extruding pelletization is obtained
Regeneration PP.
7. the preparation side of PP is reclaimed in a kind of isomerism cross-linking method modification containing L-POSS crosslinking agents according to claim 6
Method, it is characterised in that：The extruder temperature control of the double screw extruder is between 160 DEG C -230 DEG C.
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| US5623030A (en) * | 1994-12-01 | 1997-04-22 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Curable composition and process for producing molded articles using the same |
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Application publication date: 20170315 Assignee: SHENYANG XINFEIYU RUBBER PRODUCTS CO.,LTD. Assignor: SHENYANG University OF CHEMICAL TECHNOLOGY Contract record no.: X2023210000283 Denomination of invention: A Homogeneous Isomeric Crosslinking Method for Modifying and Recovering PP Containing L-POSS Crosslinking Agent and Its Preparation Method Granted publication date: 20191203 License type: Common License Record date: 20231205 |
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