CN115322142A - Multifunctional additive for polypropylene and preparation method thereof - Google Patents
Multifunctional additive for polypropylene and preparation method thereof Download PDFInfo
- Publication number
- CN115322142A CN115322142A CN202211013078.8A CN202211013078A CN115322142A CN 115322142 A CN115322142 A CN 115322142A CN 202211013078 A CN202211013078 A CN 202211013078A CN 115322142 A CN115322142 A CN 115322142A
- Authority
- CN
- China
- Prior art keywords
- multifunctional
- methyl
- dicarboxylic acid
- naphthalene dicarboxylic
- preparing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 30
- -1 polypropylene Polymers 0.000 title claims abstract description 30
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 30
- 239000000654 additive Substances 0.000 title claims abstract description 20
- 230000000996 additive effect Effects 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- YGYNBBAUIYTWBF-UHFFFAOYSA-N 2,6-dimethylnaphthalene Chemical compound C1=C(C)C=CC2=CC(C)=CC=C21 YGYNBBAUIYTWBF-UHFFFAOYSA-N 0.000 claims abstract description 34
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 19
- NZZGQZMNFCTNAM-UHFFFAOYSA-N naphthalene-2,6-dicarbonyl chloride Chemical compound C1=C(C(Cl)=O)C=CC2=CC(C(=O)Cl)=CC=C21 NZZGQZMNFCTNAM-UHFFFAOYSA-N 0.000 claims abstract description 18
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000005977 Ethylene Substances 0.000 claims abstract description 12
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 150000003462 sulfoxides Chemical class 0.000 claims abstract description 9
- 125000003386 piperidinyl group Chemical group 0.000 claims abstract description 4
- 230000002194 synthesizing effect Effects 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 238000000605 extraction Methods 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 15
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 229940011182 cobalt acetate Drugs 0.000 claims description 5
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- 125000003368 amide group Chemical group 0.000 claims description 4
- 239000012295 chemical reaction liquid Substances 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 3
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229940078494 nickel acetate Drugs 0.000 claims description 3
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims description 3
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 claims description 3
- 229910000342 sodium bisulfate Inorganic materials 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N Methylcyclohexane Natural products CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 125000003172 aldehyde group Chemical group 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- HPYNZHMRTTWQTB-UHFFFAOYSA-N dimethylpyridine Natural products CC1=CC=CN=C1C HPYNZHMRTTWQTB-UHFFFAOYSA-N 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 229940071125 manganese acetate Drugs 0.000 claims description 2
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 claims description 2
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000032683 aging Effects 0.000 abstract description 7
- 238000002425 crystallisation Methods 0.000 abstract description 7
- 230000008025 crystallization Effects 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 6
- 230000009977 dual effect Effects 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 125000002252 acyl group Chemical group 0.000 abstract description 2
- 150000001412 amines Chemical class 0.000 abstract description 2
- 230000031700 light absorption Effects 0.000 abstract description 2
- 239000004611 light stabiliser Substances 0.000 abstract description 2
- 239000002667 nucleating agent Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D211/56—Nitrogen atoms
- C07D211/58—Nitrogen atoms attached in position 4
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3435—Piperidines
-
- 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
Abstract
The invention provides a multifunctional additive for polypropylene and a preparation method thereof, wherein the preparation method comprises the following steps: rectifying, separating and purifying the extracted ethylene tar to obtain 2, 6-dimethylnaphthalene; 2, 6-dimethylnaphthalene is subjected to gas phase oxidation reaction to synthesize 2, 6-naphthalene dicarboxylic acid; reacting 2, 6-naphthalene dicarboxylic acid with sulfoxide oxide to synthesize 2, 6-naphthalene dicarboxylic acid chloride; synthesizing 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine and 2, 6-naphthalene dicarboxylic acid chloride to obtain the multifunctional additive. The method combines the piperidine group of the hindered amine light stabilizer and the acyl group of the beta crystal form nucleating agent, the prepared multifunctional auxiliary agent has stable structure, has dual functions of aging resistance and toughening when being applied to polypropylene resin, can obviously improve the crystallization temperature and the impact property of polypropylene, and can realize dual functions of ultraviolet light absorption and light stability by the aromatic substituent in the designed structure. The method can also be extended to the petrochemical industry chain at the same time.
Description
Technical Field
The invention belongs to the technical field of functional additives, and particularly relates to a multifunctional additive for polypropylene and a preparation method thereof.
Background
Polypropylene is a thermoplastic with very wide industrial application, and is a resin variety which has the fastest growth speed and is most actively developed in recent years. The polypropylene has excellent mechanical properties, low cost, safety, no toxicity, low relative density, good chemical corrosion resistance, excellent forming and processing properties, easy recycling and other excellent characteristics, and is an outstanding representative product in the application fields of chemical industry, building, chemical fiber, light industry and the like, and a new application direction is continuously developed.
Despite the remarkable advantageous properties of polypropylene, there are still some disadvantages when it is used as a structural material. Polypropylene, as a semi-crystalline polymer, has a low degree of crystallinity and a slow rate of crystal formation under typical processing conditions, with both a low number of crystals and a large particle size. In terms of macroscopic properties, polypropylene products have the problems of longer molding processing period, poorer impact resistance, large deformation shrinkage rate and the like, and particularly have insufficient toughness in the fields of pipes, automobile parts, household appliance shells, daily necessities and the like. In addition, under the influence of factors such as the structure of the polypropylene product and the external environment, the polypropylene product has yellowing, cracking and the like during the use process, so that the service life of the polypropylene product is influenced, and the use environment of the polypropylene product is mostly exposed outdoors, so that a method for researching the aging reason of the polypropylene and improving the aging resistance of the polypropylene is very necessary.
At present, the preparation of the multifunctional auxiliary agent mainly has two approaches, one is to adopt the form of an auxiliary agent bag, namely, a compound auxiliary agent is obtained by simply and physically mixing a plurality of auxiliary agents; secondly, through molecular design, different functional groups are introduced on the auxiliary agent molecules, so that the auxiliary agent molecules have different functions. Compared with the form of an auxiliary agent bag, the multifunctional auxiliary agent obtained by molecular design can avoid the defects of uneven dispersibility, poor mixing effect and poor compatibility. In addition, the repeatable utilization rate of plastics is improved, and compared with a composite additive, the multifunctional additive with a molecular design is added, so that the obtained plastic product is purer, can be directly recycled for secondary processing and utilization, does not need additional treatment, and is simple, feasible and environment-friendly. On the other hand, the high added value fine utilization of ethylene tar, which is a byproduct of ethylene cracking, becomes a necessary trend of high-efficiency utilization of petroleum resources. The two are combined, and the design and preparation of the multifunctional additive for high-efficiency polypropylene based on the ethylene tar component has important significance.
Disclosure of Invention
Technical problem to be solved
The invention provides a multifunctional additive for polypropylene and a preparation method thereof, which aim to solve the technical problem.
(II) technical scheme
In order to solve the technical problems, the invention provides a preparation method of a multifunctional auxiliary agent for polypropylene, which comprises the following steps: rectifying, separating and purifying the extracted ethylene tar to obtain 2, 6-dimethylnaphthalene; 2, 6-dimethylnaphthalene is subjected to gas phase oxidation reaction to synthesize 2, 6-naphthalene dicarboxylic acid; reacting 2, 6-naphthalene dicarboxylic acid with sulfoxide oxide to synthesize 2, 6-naphthalene dicarboxylic acid chloride; the multifunctional assistant is synthesized by 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine and 2, 6-naphthalene dicarboxylic acid chloride.
Further, the preparation method of the multifunctional auxiliary agent specifically comprises the following steps:
s1, mixing ethylene tar and an extracting agent, extracting at a certain temperature, then placing the mixture in a settling tank for settling pretreatment, standing and separating for 24 hours, taking an upper extraction phase, sending the upper extraction phase into a rectifying tower, controlling the extraction temperature of the rectifying tower, rectifying, and extracting 2, 6-dimethylnaphthalene;
s2, carrying out gas phase oxidation reaction on 2, 6-dimethylnaphthalene under the action of a catalyst to prepare 2, 6-naphthalenedicarboxylic acid;
s3, mixing 2, 6-naphthalene dicarboxylic acid and sulfoxide oxide in pyridine and a first solvent to react to synthesize 2, 6-naphthalene dicarboxylic acid chloride;
s4, adding a certain amount of 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine, lithium chloride and a second solvent into a reaction container, stirring and pre-dissolving at 0 ℃ for 20min, slowly dropwise adding 2, 6-naphthalenedicarboxylic acid chloride into the reaction kettle at a certain speed, observing the temperature of the reaction liquid while stirring after dropwise adding is finished, heating for reaction after the temperature of the reaction liquid does not rise any more, and washing, filtering and drying after the reaction is finished to obtain the multifunctional auxiliary agent.
Further, in step S1, the extracting agent is one of sulfuric acid, hydrochloric acid, acetic acid, and sodium bisulfate.
Further, in step S1, the extraction temperature is 35-45 ℃.
Further, in the step S1, the extraction temperature of the rectifying tower is 235-245 ℃.
Further, in step S2, the catalyst is one of heavy metals of nickel acetate, cobalt acetate, and manganese acetate.
Further, in step S3, the first solvent is one of toluene, xylene, methyl acetate and cyclohexane; in step S4, the second solvent is one or more of pyrrolidone, dimethyl sulfoxide, pyridine, and methyl pyrrolidone.
Further, in step S4, the molar ratio of the 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine, the lithium chloride and the second solvent is 1 (2.0-2.5) to (4.2-4.9).
Further, in step S4, the reaction temperature is increased to 65-80 ℃.
In addition, the invention also provides a multifunctional auxiliary agent for polypropylene, which is prepared by the method, contains piperidine groups and amide groups, and has a molecular structural formula as follows:
wherein, R1 and R2 are one of hydroxyl, carboxyl, aldehyde group and amido.
(III) advantageous effects
The invention provides a multifunctional additive for polypropylene and a preparation method thereof, wherein the preparation method comprises the following steps: rectifying, separating and purifying the extracted ethylene tar to obtain 2, 6-dimethylnaphthalene; 2, 6-dimethylnaphthalene is subjected to gas phase oxidation reaction to synthesize 2, 6-naphthalene dicarboxylic acid; reacting 2, 6-naphthalene dicarboxylic acid with sulfoxide oxide to synthesize 2, 6-naphthalene dicarboxylic acid chloride; the multifunctional assistant is synthesized by 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine and 2, 6-naphthalene dicarboxylic acid chloride. The method combines the piperidine group of the hindered amine light stabilizer and the acyl group of the beta crystal form nucleating agent, the prepared multifunctional auxiliary agent has stable structure, has dual functions of aging resistance and toughening when being applied to polypropylene resin, can obviously improve the crystallization temperature and the impact property of polypropylene, and can realize dual functions of ultraviolet light absorption and light stability by the aromatic substituent in the designed structure. The method can also be extended to petrochemical industry chain simultaneously.
Detailed Description
In order to make the objects, contents and advantages of the present invention more apparent, the following detailed description of the present invention will be given in conjunction with examples.
Example 1
The preparation method of the multifunctional additive for polypropylene comprises the following steps:
s1, mixing 2L of ethylene tar with 500ml of sulfuric acid, extracting at 40 ℃, then placing the mixture in a settling tank for settling pretreatment, standing and separating for 24 hours, taking an upper extraction phase, sending the upper extraction phase into a small rectifying tower, controlling the extraction temperature of the rectifying tower to be 239 ℃, and rectifying to obtain 95% purity 2, 6-dimethylnaphthalene by extraction;
s2, mixing 0.2mol of 2, 6-dimethylnaphthalene with 1.25g of catalyst cobalt acetate, heating to completely dissolve the mixture, and continuously introducing air to carry out oxidation reaction to prepare 2, 6-naphthalenedicarboxylic acid;
s3, mixing 0.18mol2, 6-naphthalenedicarboxylic acid, 1.2mol of sulfoxide oxide and 0.075mol of pyridine in 109ml of toluene, and reacting at 80 ℃ to synthesize 2, 6-naphthalenedicarboxylic acid chloride;
s4, adding 0.4mol of 4-amino- (2, 6-hydroxymethyl-2 ',6' -hydroxymethyl) piperidine, 0.92mol of lithium chloride and 178ml of methyl pyrrolidone into a three-neck flask, stirring and pre-dissolving for 20min at the temperature of 0 ℃, then dropwise adding 0.15mol of 2, 6-naphthalene dicarboxylic acid chloride into the reaction kettle at the speed of 0.741ml/min, observing the temperature of the reaction solution while stirring after dropwise adding is finished, heating the reaction solution to 75 ℃ when the temperature of the reaction solution does not rise any more, and washing, filtering and drying after the reaction is finished to obtain the multifunctional assistant.
Example 2
The preparation method of the multifunctional additive for polypropylene comprises the following steps:
s1, mixing 2L of ethylene tar with 500ml of sodium bisulfate, then extracting at 45 ℃, then placing the mixture in a settling tank for settling pretreatment, standing and separating for 24 hours, taking an upper extraction phase, sending the upper extraction phase into a small rectifying tower, controlling the extraction temperature of the rectifying tower to be 242 ℃, and rectifying to obtain 96% purity 2, 6-dimethylnaphthalene;
s2, mixing 0.2mol2, 6-dimethylnaphthalene with 1.25g of catalyst nickel acetate, heating to completely dissolve the mixture, and continuously introducing air to carry out oxidation reaction to prepare 2, 6-naphthalenedicarboxylic acid;
s3, mixing 0.18mol2, 6-naphthalenedicarboxylic acid, 1.2mol of sulfoxide oxide and 0.075mol of pyridine in 100ml of methyl acetate, and reacting at 80 ℃ to synthesize 2, 6-naphthalenedicarboxylic acid chloride;
s4, adding 0.4mol of 4-amino- (2, 6-carboxymethyl-2 ',6' -carboxymethyl (piperidine, 0.92mol of lithium chloride and 178ml of pyrrolidone) into a three-neck flask, stirring and pre-dissolving for 20min at the temperature of 0 ℃, then dropwise adding 0.15mol of 2, 6-naphthalene dicarboxylic acid chloride into the reaction kettle at the speed of 0.741ml/min, observing the temperature of the reaction solution while stirring after dropwise adding is finished, heating the reaction solution to 80 ℃ when the temperature of the reaction solution does not rise any more, and washing, filtering and drying after the reaction is finished to obtain the multifunctional assistant.
Example 3
The preparation method of the multifunctional additive for polypropylene comprises the following steps:
s1, mixing 2L of ethylene tar with 500ml of acetic acid, extracting at 45 ℃, then placing in a settling tank for settling pretreatment, standing and separating for 24 hours, taking an upper extraction phase, sending into a small rectifying tower, controlling the extraction temperature of the rectifying tower to be 245 ℃, and rectifying to obtain 93% purity 2, 6-dimethylnaphthalene;
s2, mixing 0.25mol of 2, 6-dimethylnaphthalene with 1.25g of catalyst cobalt acetate, heating to completely dissolve the cobalt acetate, and continuously introducing air to carry out oxidation reaction to prepare 2, 6-naphthalenedicarboxylic acid;
s3, mixing 0.23mol of 2, 6-naphthalenedicarboxylic acid, 1.2mol of sulfoxide oxide and 0.08mol of pyridine in 120ml of toluene, and reacting at 80 ℃ to synthesize 2, 6-naphthalenedicarboxylic acid chloride;
s4, adding 0.45mol of 4-amino- (2, 6-hydroxymethyl-2 ',6' -hydroxymethyl) piperidine, 1.1mol of lithium chloride and 190ml of methyl pyrrolidone into a three-neck flask, stirring and pre-dissolving at 0 ℃ for 20min, then dropwise adding 0.2mol of 2, 6-naphthalenedicarboxylic acid chloride into the reaction kettle at the speed of 0.75ml/min, observing the temperature of the reaction solution while stirring after dropwise adding is finished, heating the reaction solution to 80 ℃ when the temperature of the reaction solution does not rise any more, and washing, filtering and drying after the reaction is finished to obtain the multifunctional assistant.
And (4) performance testing:
the multifunctional auxiliary agent synthesized in 500ppm of the embodiment 1-3, the antioxidant 1010 in 2000ppm, the antioxidant 168 in 1400ppm, the acid-absorbing agent calcium stearate in 500ppm and the PPR powder material in 3kg of random copolymerization polypropylene (with the melt index of 0.3g/10 min) are added into a high-speed mixer together, mixed for 3min, the mixture is added into a granulation unit of a double-screw extruder, extruded and granulated at 200 ℃, the screw rotating speed is 200r/min, the PPR granules for the pipe are prepared, and the impact property, the crystallization property and the aging resistance property are tested.
And (3) impact performance test: a sample is prepared on an injection molding machine, a simple beam impact testing machine is adopted to test according to the GB/T1043.1-2008 standard, the testing temperature is 23 ℃, the B-type sample, the pendulum bob is 5J, a sample strip A-type gap is formed, and the depth is 2mm.
And (2) testing crystallization performance, namely testing according to GB/T19466.3-2004 standard, taking nitrogen as carrier gas, the flow rate is 50mL/min, the weight of the sample is 5-8mg, firstly heating to 200 ℃ at the speed of 10 ℃/min at 30 ℃, keeping the temperature at 200 ℃ for 5min, eliminating thermal history, then cooling to 30 ℃ at the speed of 10 ℃/min, obtaining a non-isothermal crystallization curve of the sample, keeping the temperature at 30 ℃ for 5min, and then heating to 200 ℃ at the speed of 10 ℃/min to obtain a melting curve of the sample. And calculating to obtain the crystallization temperature and the relative content of the beta crystal form according to the melting curve of the sample.
And (3) aging resistance testing: according to the test of GB/T19466.6-2009 standard, after the temperature is increased from 30 ℃ to 210 ℃ at the speed of 10 ℃/min, oxygen is introduced, the oxygen flow is 50 +/-5 ml/min, and the temperature is kept for 60min.
The test results are shown in the following table:
from the test results, compared with a sample without the addition of the auxiliary agent, the beta crystal content and the crystallization temperature of the PPR material are both greatly improved and the impact strength and the oxidation induction time are also increased with the addition of a certain amount of the multifunctional auxiliary agent, which shows that the toughness and the aging resistance of the PPR material can be obviously improved by the addition of the multifunctional auxiliary agent.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (10)
1. A preparation method of a multifunctional additive for polypropylene is characterized by comprising the following steps: rectifying, separating and purifying the extracted ethylene tar to obtain 2, 6-dimethylnaphthalene; 2, 6-dimethylnaphthalene is subjected to gas phase oxidation reaction to synthesize 2, 6-naphthalene dicarboxylic acid; reacting 2, 6-naphthalene dicarboxylic acid with sulfoxide oxide to synthesize 2, 6-naphthalene dicarboxylic acid chloride; synthesizing 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine and 2, 6-naphthalene dicarboxylic acid chloride to obtain the multifunctional additive.
2. The method for preparing a multifunctional assistant according to claim 1, wherein the method for preparing a multifunctional assistant comprises the following steps:
s1, mixing ethylene tar and an extracting agent, extracting at a certain temperature, then placing the mixture in a settling tank for settling pretreatment, standing and separating for 24 hours, taking an upper extraction phase, sending the upper extraction phase into a rectifying tower, controlling the extraction temperature of the rectifying tower, rectifying, and extracting 2, 6-dimethylnaphthalene;
s2, carrying out gas phase oxidation reaction on 2, 6-dimethylnaphthalene under the action of a catalyst to prepare 2, 6-naphthalenedicarboxylic acid;
s3, mixing 2, 6-naphthalene dicarboxylic acid and sulfoxide oxide in pyridine and a first solvent to react to synthesize 2, 6-naphthalene dicarboxylic acid chloride;
s4, adding a certain amount of 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine, lithium chloride and a second solvent into a reaction container, stirring and pre-dissolving at 0 ℃ for 20min, slowly dropwise adding 2, 6-naphthalenedicarboxylic acid chloride into the reaction kettle at a certain speed, observing the temperature of the reaction liquid while stirring after dropwise adding is finished, heating for reaction after the temperature of the reaction liquid does not rise any more, and washing, filtering and drying after the reaction is finished to obtain the multifunctional auxiliary agent.
3. The method for preparing a multifunctional additive according to claim 2, wherein in step S1, the extractant is one of sulfuric acid, hydrochloric acid, acetic acid, and sodium bisulfate.
4. The method for preparing the multifunctional additive according to claim 2, wherein in the step S1, the extraction temperature is 35-45 ℃.
5. The method for preparing the multifunctional additive according to claim 2, wherein in the step S1, the extraction temperature of the rectifying tower is 235-245 ℃.
6. The method for preparing the multifunctional additive according to claim 2, wherein in the step S2, the catalyst is one of heavy metals of nickel acetate, cobalt acetate and manganese acetate.
7. The method for preparing a multifunctional additive according to claim 2, wherein in step S3, the first solvent is one of toluene, xylene, methyl acetate and cyclohexane; in step S4, the second solvent is one or more of pyrrolidone, dimethyl sulfoxide, pyridine, and methyl pyrrolidone.
8. The process for preparing a multifunctional assistant according to claim 2, wherein in step S4, the molar ratio of the 4-amino- (2, 6-R1-methyl-2 ',6' -R2-methyl) piperidine, the lithium chloride and the second solvent is 1 (2.0-2.5) to (4.2-4.9).
9. The process for preparing a multifunctional assistant according to claim 2, wherein the reaction temperature is increased to 65-80 ℃ in step S4.
10. A multifunctional assistant for polypropylene, which is prepared by the method of any one of the preceding claims, comprises a piperidine group and an amide group, and has a molecular structural formula:
wherein, R1 and R2 are one of hydroxyl, carboxyl, aldehyde group and amido.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013078.8A CN115322142A (en) | 2022-08-23 | 2022-08-23 | Multifunctional additive for polypropylene and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013078.8A CN115322142A (en) | 2022-08-23 | 2022-08-23 | Multifunctional additive for polypropylene and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115322142A true CN115322142A (en) | 2022-11-11 |
Family
ID=83925745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211013078.8A Pending CN115322142A (en) | 2022-08-23 | 2022-08-23 | Multifunctional additive for polypropylene and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115322142A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675300A (en) * | 2002-08-07 | 2005-09-28 | 西巴特殊化学品控股有限公司 | Beta-nucleating, light stabilizing agents for polypropylene |
| CN101265182A (en) * | 2008-04-23 | 2008-09-17 | 上海红京印实业有限公司 | Method for preparing 2,6-naphthalic acid |
| CN104419066A (en) * | 2013-09-09 | 2015-03-18 | 中国石油化工股份有限公司 | Polypropylene composition for preparing polypropylene microporous membrane and preparation method of polypropylene composition |
-
2022
- 2022-08-23 CN CN202211013078.8A patent/CN115322142A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675300A (en) * | 2002-08-07 | 2005-09-28 | 西巴特殊化学品控股有限公司 | Beta-nucleating, light stabilizing agents for polypropylene |
| CN101265182A (en) * | 2008-04-23 | 2008-09-17 | 上海红京印实业有限公司 | Method for preparing 2,6-naphthalic acid |
| CN104419066A (en) * | 2013-09-09 | 2015-03-18 | 中国石油化工股份有限公司 | Polypropylene composition for preparing polypropylene microporous membrane and preparation method of polypropylene composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102532837B (en) | Preparation method for high molecular weight polylactic acid steric composite | |
| CN107793566B (en) | Thermoplastic polybenzimidazole imide and preparation method thereof | |
| CN110669295B (en) | Preparation method of high-heat-resistance polybutylene-1 composite tube material for conveying high-temperature fluid | |
| CN109456486B (en) | Multifunctional high-temperature-resistant POSS nano-molecular material and preparation method thereof | |
| KR100966193B1 (en) | Nano-composite comprising poss and method for manufacturing the same | |
| CN107892745B (en) | Thermoplastic polybenzoxazole imide and preparation method thereof | |
| JP6658960B2 (en) | Polyarylene sulfide copolymer and method for producing the same | |
| CN113861688B (en) | Low-dielectric polyphenylene sulfide composite material and preparation method thereof | |
| CN110615915A (en) | Composite polypropylene nucleating agent and preparation method and application thereof | |
| CN101671460A (en) | High-flexibility high-strength polypropylene composition, preparation method and use thereof | |
| CN112851955B (en) | Organic metal hybrid nucleating agent and preparation method and application thereof | |
| CN101265342B (en) | Composite beta crystal-type nucleater of polypropylene | |
| CN115322142A (en) | Multifunctional additive for polypropylene and preparation method thereof | |
| CN114381097B (en) | Flame-retardant thermoplastic PET composite material and preparation method thereof | |
| CN116554490A (en) | Preparation method of nano silicon nitride particle grafted modified enhanced PBAT | |
| JP2009019135A (en) | Polyester resin composition for laser welding and molded product using the same | |
| JP3027386B2 (en) | Polyarylene thioether resin composition and extruded product | |
| CN107880504B (en) | Preparation method of liquid crystal ionomer intercalated montmorillonite composite material | |
| CN113308096B (en) | Corrosion-resistant polyarylate composite material and preparation method thereof | |
| CN117551338B (en) | Flame-retardant cold-resistant and damp-heat-resistant polyester composition and preparation method thereof | |
| CN116462912B (en) | Material for automobile exterior trim and preparation method thereof | |
| CN108440926B (en) | High-performance stereo composite polylactic acid/elastomer alloy material or product and preparation method thereof | |
| CN116376035A (en) | Hyperbranched flame retardant containing MOFs and preparation method thereof | |
| JP5223254B2 (en) | Laser welding polyester resin composition and molded article using the same | |
| JP2018024851A (en) | Polyarylenesulfide and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221111 |