CN116355318A - Processing technology of special material for granulating wear-resistant scratch-resistant automobile plastic part - Google Patents
Processing technology of special material for granulating wear-resistant scratch-resistant automobile plastic part Download PDFInfo
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- CN116355318A CN116355318A CN202310360340.4A CN202310360340A CN116355318A CN 116355318 A CN116355318 A CN 116355318A CN 202310360340 A CN202310360340 A CN 202310360340A CN 116355318 A CN116355318 A CN 116355318A
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- wear
- scratch
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- 239000000463 material Substances 0.000 title claims abstract description 54
- 229920003023 plastic Polymers 0.000 title claims abstract description 39
- 239000004033 plastic Substances 0.000 title claims abstract description 39
- 230000003678 scratch resistant effect Effects 0.000 title claims abstract description 29
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 43
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims abstract description 28
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 22
- -1 nitroxide free radical Chemical class 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 21
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 21
- 239000008367 deionised water Substances 0.000 claims abstract description 18
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 18
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 16
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011780 sodium chloride Substances 0.000 claims abstract description 8
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims abstract description 5
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims abstract description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 42
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 27
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 27
- 239000012745 toughening agent Substances 0.000 claims description 26
- 239000004743 Polypropylene Substances 0.000 claims description 21
- 229920001155 polypropylene Polymers 0.000 claims description 21
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 18
- 239000002904 solvent Substances 0.000 claims description 18
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 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 10
- 229920001903 high density polyethylene Polymers 0.000 claims description 10
- 239000004700 high-density polyethylene Substances 0.000 claims description 10
- 229940057995 liquid paraffin Drugs 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 10
- 229960000583 acetic acid Drugs 0.000 claims description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 9
- SHWINQXIGSEZAP-UHFFFAOYSA-N dimethyl heptanedioate Chemical compound COC(=O)CCCCCC(=O)OC SHWINQXIGSEZAP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012362 glacial acetic acid Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims description 9
- LSFUGNKKPMBOMG-UHFFFAOYSA-N cycloprothrin Chemical compound ClC1(Cl)CC1(C=1C=CC=CC=1)C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 LSFUGNKKPMBOMG-UHFFFAOYSA-N 0.000 claims description 7
- 239000012153 distilled water Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 5
- 230000003712 anti-aging effect Effects 0.000 claims description 5
- 239000004595 color masterbatch Substances 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 5
- 239000011541 reaction mixture Substances 0.000 claims description 5
- 239000012086 standard solution Substances 0.000 claims description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical group OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003064 anti-oxidating effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 15
- 238000010992 reflux Methods 0.000 description 15
- 238000003756 stirring Methods 0.000 description 15
- 238000001816 cooling Methods 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 description 6
- 238000004821 distillation Methods 0.000 description 6
- 238000010907 mechanical stirring Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- ZCVAOQKBXKSDMS-AQYZNVCMSA-N (+)-trans-allethrin Chemical compound CC1(C)[C@H](C=C(C)C)[C@H]1C(=O)OC1C(C)=C(CC=C)C(=O)C1 ZCVAOQKBXKSDMS-AQYZNVCMSA-N 0.000 description 4
- FMTFEIJHMMQUJI-NJAFHUGGSA-N 102130-98-3 Natural products CC=CCC1=C(C)[C@H](CC1=O)OC(=O)[C@@H]1[C@@H](C=C(C)C)C1(C)C FMTFEIJHMMQUJI-NJAFHUGGSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 229940024113 allethrin Drugs 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000137 polyphosphoric acid Polymers 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229960004838 phosphoric acid Drugs 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method 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
- C07D211/92—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with a hetero atom directly attached to the ring nitrogen atom
- C07D211/94—Oxygen atom, e.g. piperidine N-oxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/08—Esters of oxyacids of phosphorus
- C07F9/09—Esters of phosphoric acids
- C07F9/117—Esters of phosphoric acids with cycloaliphatic alcohols
-
- 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
- C08L23/14—Copolymers of propene
-
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a processing technology of special materials for granulating wear-resistant and scratch-resistant automobile plastic parts, which relates to the field of special materials for granulating plastic parts, and is characterized in that a three-mouth bottle reactor is placed in a constant-temperature water bath, water, 1, 4-dipiperidine-4-ol and a catalyst are added, and the materials are drippedAdding hydrogen peroxide, adding sodium chloride after the reaction is finished to obtain an intermediate A, and respectively taking the intermediate A, cyclopentane, absolute ethyl alcohol and CuCl 2 ·2H 2 0, putting the mixture into a three-neck flask, dropwise adding tert-butyl hydroperoxide, adding deionized water and chloroform, pouring the mixture into a separating funnel, standing and phase-separating to obtain an intermediate B; solves the problems that the prior special material has poor oxidation resistance and the finished product prepared by the special material has high brittleness along with the time; the modified antioxidant molecule is beneficial to improving the thermal stability of the antioxidant molecule and a matrix, and the renewable nitroxide free radical also has excellent antioxidation effect, thereby achieving the purpose of increasing the antioxidation.
Description
Technical Field
The invention relates to the field of special materials for granulating plastic parts, in particular to a processing technology of special materials for granulating wear-resistant scratch-resistant automobile plastic parts.
Background
With the rapid increase of automobile popularity in the world, the reduction of automobile body weight, energy saving and consumption reduction and cost reduction have become one of the main targets of automobile industry development, plastics are widely applied to automobiles due to the characteristics of light weight, corrosion resistance, large design freedom and the like, the application of plastics to automobiles is researched from the 50 s, the plastics for automobiles enter commercial production in the 60 s and rapidly develop after the 70 s, the consumption accounts for 2% -3% of the automobile dead weight, a high-strength and light-weight material system is adopted in the 80 s, the consumption accounts for about 8% of the automobile dead weight, the proportion of the plastics for foreign automobiles in the whole automobile is further increased in recent years, the application range of plastics parts in automobiles is developed from cars and light trucks to heavy trucks, the application range of plastics for parts of automobiles from internal parts to external parts and functional parts is tens of types, and polypropylene becomes one of the fastest-growing plastics due to the characteristics of low density, rich raw material sources, low price and the like.
The automobile parts made of plastic are more in variety, the bumper is one of the most representative parts, and compared with other materials, the special material for the automobile bumper has the characteristics of good formability, low cost, recoverability and the like, and is widely applied, but the existing special material has poor oxidation resistance, and the finished product prepared by the special material has the disadvantages of larger brittleness, poorer toughness, wear resistance and scratch resistance along with the time.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a processing technology of special materials for granulating wear-resistant and scratch-resistant automobile plastic parts, which comprises the following steps:
(1) Three-mouth flask reactionPlacing the reactor in a constant temperature water bath, adding water, 1, 4-dipiperidine-4-alcohol and catalyst, dropwise adding hydrogen peroxide, adding sodium chloride after the reaction is finished to obtain an intermediate A, and respectively taking the intermediate A, cyclopentane, absolute ethyl alcohol and CuC l 2 ·2H 2 0, dropwise adding tertiary butyl hydroperoxide into a three-neck flask, adding deionized water and chloroform, pouring into a separating funnel, standing and phase-separating to obtain an intermediate B, adding the intermediate B, lithium hydroxide and n-heptane into the three-neck flask, and adding dimethyl pimelate and tetrabutylammonium bromide to obtain the modified antioxidant, thereby solving the problems that the oxidation resistance of the existing special material is poor and the brittleness of a finished product prepared by the special material is large along with the time;
(2) Tributyl phosphate and phosphorus pentoxide are mixed in a round-bottom flask, absolute ethyl alcohol is dripped into the round-bottom flask to obtain an intermediate C, cycloprothrin, glacial acetic acid and phosphoric acid are mixed in the round-bottom flask, hydrogen peroxide is dripped into the round-bottom flask, distilled water is used for washing the mixture to be neutral to obtain an intermediate D, the intermediate D is dissolved in solvent toluene and added into a reaction bottle, and the solvent toluene, the intermediate C and triphenylphosphine are dripped into the reaction bottle after being mixed, so that the modified toughening agent is obtained, and the problems that the toughness of the existing special material is poor, and the special material is not abrasion-resistant and scratch-resistant are solved.
The aim of the invention can be achieved by the following technical scheme:
the processing technology of the special material for granulating the wear-resistant scratch-resistant automobile plastic part comprises the following components in parts by weight:
5-8 parts of high-performance polypropylene, 100-110 parts of copolymerized polypropylene, 20-30 parts of active talcum powder, 4-10 parts of high-density polyethylene, 3-5 parts of modified toughening agent, 1-3 parts of modified antioxidant, 3-5 parts of masterbatch, 0.2-0.3 part of silane coupling agent and 0.4-1.5 parts of liquid paraffin;
the processing technology of the special material for granulating the wear-resistant scratch-resistant automobile plastic part comprises the following steps:
s1: the preparation method comprises the steps of metering active talcum powder, silane coupling agent and liquid paraffin according to parts by weight, adding the ingredients into a high-speed mixer, and uniformly mixing to obtain premix;
s2: the preparation method comprises the following steps of metering and proportioning high-performance polypropylene, copolymerized polypropylene, high-density polyethylene, a toughening agent, an anti-aging agent, a compatilizer and color master batch according to parts by weight, adding premix, and uniformly mixing to obtain a blend:
s3: adding the blend into a double-screw extruder, setting proper temperature and rotating speed to extrude the materials in a molten state, and granulating by cold water bracing to obtain the special granulating material for the wear-resistant scratch-resistant automobile plastic parts;
the modified antioxidant is prepared by the following steps:
s11: placing a three-mouth bottle reactor with a stirrer and a thermometer in a constant-temperature water bath, adding water, 1, 4-dipiperidine-4-ol and a catalyst, uniformly stirring, heating to 55-60 ℃, dropwise adding hydrogen peroxide, controlling the dropwise adding speed to be 1-2 drops/s, keeping the temperature at 55-60 ℃ in the dropwise adding process, carrying out heat preservation reaction for 8-9h, adding sodium chloride after the reaction is finished, stirring for 20-30 min, cooling to room temperature, and filtering to obtain an intermediate A with the yield of 90%;
the chemical reaction formula is as follows:
s12: respectively taking intermediate A, cyclopentane, absolute ethyl alcohol and CuC l 2 ·2H 2 0, putting the mixture into a three-neck flask with a mechanical stirrer, a thermometer and a condenser tube, dropwise adding tert-butyl hydroperoxide, controlling the dropwise adding speed to be 1-2 drops/s, heating to 65-70 ℃ after a reaction system is stable, reacting for 9-10h, decompressing and distilling out ethanol and unreacted cyclohexane, cooling to room temperature, adding deionized water and chloroform to stir at 25-30 ℃ for 20-30 min, pouring the mixture into a separating funnel, standing and phase-separating, washing an organic phase with the deionized water for 3-4 times, decompressing and distilling out chloroform, and obtaining an intermediate B;
the chemical reaction formula is as follows:
s13: adding the intermediate B, lithium hydroxide and n-heptane into a three-neck flask with a mechanical stirrer, a water separator and a condenser tube, heating to reflux, reacting for 1.5-3h under reflux, cooling to 60-65 ℃, adding dimethyl pimelate and tetrabutylammonium bromide, heating to reflux, continuously refluxing to separate out methanol, reacting for 6-8h, cooling to room temperature, adding deionized water, washing for 3-4 times, and evaporating the solvent under reduced pressure to obtain the modified antioxidant.
The chemical reaction formula is as follows:
as a further scheme of the invention: the dosage ratio of the water, the 1, 4-dipiperidine-4-alcohol, the catalyst and the hydrogen peroxide in the step S11 is 500g:65.9g:0.15g:15.6g, wherein the mass concentration of the hydrogen peroxide is 8%, and the catalyst is ethylenediamine tetraacetic acid.
As a further scheme of the invention: intermediate A, cyclopentane, absolute ethanol, cuC l in step S12 2 ·2H 2 0. The dosage ratio of t-butyl hydroperoxide, deionized water to chloroform was 26.58g:150.8g:240g:6.48g:129.78g:100mL:200mL.
As a further scheme of the invention: the dosage ratio of intermediate B, lithium hydroxide, n-heptane, dimethyl pimelate and tetrabutylammonium bromide in step S13 was 1.86g:2.20g:100g:1.58g:1g.
As a further scheme of the invention: the modified toughening agent is prepared by the following steps:
s51: mixing tributyl phosphate and phosphorus pentoxide in a round-bottom flask with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, stirring at 50-60 ℃ for reaction for 1-3h, then dripping absolute ethyl alcohol, controlling the dripping speed to be 1-2 drops/s, and continuing to react at 110-120 ℃ for 15-18h to obtain an intermediate C;
the chemical reaction formula is as follows:
s52: mixing the cycloprothrin, the glacial acetic acid and the phosphoric acid in a round bottom flask with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, dripping hydrogen peroxide in 30-60 min, controlling the dripping speed to be 1-2 drops/s, stirring at 50-60 ℃ for reaction for 4-6h, washing to be neutral by using distilled water, and distilling at 60-70 ℃ under reduced pressure to obtain an intermediate D;
the chemical reaction formula is as follows:
s53: dissolving the intermediate D in toluene solvent, adding the toluene solvent into a reaction bottle, mixing the toluene solvent, the intermediate C solvent and triphenylphosphine at 40-45 ℃, dripping the mixture into the reaction bottle within 30-60mi, controlling the dripping speed to be 1-2 drops/s, reacting for 4-6h at 70-80 ℃, titrating the reaction mixture with a sodium hydroxide standard solution until the pH value is 7, and distilling at 60-70 ℃ under reduced pressure to obtain the modified toughening agent.
The chemical reaction formula is as follows:
as a further scheme of the invention: the dosage ratio of tributyl phosphate, phosphorus pentoxide and absolute ethyl alcohol in the step S51 is 98.6g:28.2g:16.8g.
As a further scheme of the invention: the dosage ratio of the allethrin, the glacial acetic acid, the phosphoric acid and the hydrogen peroxide in the step S52 is 89.8g:15g:1g:80g.
As a further scheme of the invention: the dosage ratio of the intermediate D, the intermediate C and the triphenylphosphine in the step S53 is 100g:53.6g:0.1g.
The invention has the beneficial effects that:
(1) The invention is that a three-mouth bottle reactor is placed in a constant temperature water bath, water, 1, 4-dipiperidine-4-alcohol and catalyst are added, hydrogen peroxide is dripped, sodium chloride is added after the reaction is finished, an intermediate A is obtained, and the intermediate A, cyclopentane and anhydrous are respectively takenEthanol, cuC l 2 ·2H 2 0, dropwise adding tertiary butyl hydroperoxide into a three-neck flask, adding deionized water and chloroform, pouring into a separating funnel, standing and phase-separating to obtain an intermediate B, adding the intermediate B, lithium hydroxide and n-heptane into the three-neck flask, adding dimethyl pimelate and tetrabutylammonium bromide to obtain the modified antioxidant, wherein the modified antioxidant has good light stabilization effect, good compatibility and dispersibility with a plastic matrix, and also has the effect of reducing material color change, the modified antioxidant molecule contains piperidine hindered amine, the effect of capturing active free radicals, decomposing hydroperoxide and quenching excited state is shown in the light aging process, the hindered phenol group is beneficial to improving the thermal stability of the intermediate B and the matrix, and the renewable nitrogen-oxygen free radicals also have excellent antioxidation effect, so that the aim of increasing the antioxidation is fulfilled;
(2) Tributyl phosphate and phosphorus pentoxide are mixed in a round-bottom flask, absolute ethyl alcohol is dropwise added to obtain an intermediate C, the cyclopentene allethrin, glacial acetic acid and phosphoric acid are mixed in the round-bottom flask, hydrogen peroxide is dropwise added, distilled water is used for washing to neutrality to obtain an intermediate D, the intermediate D is dissolved in solvent toluene and added into a reaction bottle, the solvent toluene, the intermediate C and triphenylphosphine are mixed and then dropwise added into the reaction bottle to obtain the modified toughening agent, the active hydrogen group of the cyclopentene allethrin is utilized, the modified toughening agent is synthesized by adopting a click chemistry reaction principle, the mechanical property of a product is improved, dependence on petrochemical products is reduced, the cyclopentene allethrin contains more convertible functional groups in a molecular structure, tributyl phosphate contains rich carbon sources and phosphate, the phosphate is thermally decomposed to generate acidic phosphate, the acidic phosphate is thermally decomposed to further generate polyphosphoric acid, the polyphosphoric acid is used as an acid source and a carbonizing agent in the thermal degradation process of a polyvinyl chloride blending system, the carbon forming a carbon forming layer on the surface of the modified toughening agent is fast, and the purposes of oxygen and the high-temperature resistant carbon forming a compact and oxygen-enriched film are achieved, and the purposes of resisting contact with external heat are achieved.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
the embodiment is a processing technology of special materials for granulating wear-resistant and scratch-resistant automobile plastic parts, and the special materials comprise the following components in parts by weight:
5 parts of high-performance polypropylene, 100 parts of copolymerized polypropylene, 20 parts of active talcum powder, 4 parts of high-density polyethylene, 3 parts of modified toughening agent, 1 part of modified antioxidant, 3 parts of masterbatch, 0.2 part of silane coupling agent and 0.4 part of liquid paraffin;
the processing technology of the special material for granulating the wear-resistant scratch-resistant automobile plastic part comprises the following steps:
s1: the preparation method comprises the steps of metering active talcum powder, silane coupling agent and liquid paraffin according to parts by weight, adding the ingredients into a high-speed mixer, and uniformly mixing to obtain premix;
s2: the preparation method comprises the following steps of metering and proportioning high-performance polypropylene, copolymerized polypropylene, high-density polyethylene, a toughening agent, an anti-aging agent, a compatilizer and color master batch according to parts by weight, adding premix, and uniformly mixing to obtain a blend:
s3: adding the blend into a double-screw extruder, setting proper temperature and rotating speed to extrude the materials in a molten state, and granulating by cold water bracing to obtain the special granulating material for the wear-resistant scratch-resistant automobile plastic parts;
the modified antioxidant is prepared by the following steps:
s11: placing a three-mouth bottle reactor with a stirrer and a thermometer in a constant-temperature water bath, adding 500g of water, 65.9g of 1, 4-dipiperidine-4-ol and 0.15g of catalyst, uniformly stirring, heating to 55 ℃, dropwise adding 15.6g of hydrogen peroxide, controlling the dropwise adding speed to be 1 drop/s, keeping the temperature at 55 ℃ in the dropwise adding process, preserving heat for 8 hours, adding sodium chloride after the reaction is finished, stirring for 20 min, cooling to room temperature, filtering to obtain an intermediate A, and obtaining the yield of 90%;
s12: 26.58g of intermediate A, 150.8g of cyclopentane, 240g of absolute ethyl alcohol and 6.48g of CuCl are taken respectively 2 ·2H 2 0 is put into a three-neck flask with a mechanical stirrer, a thermometer and a condenser tube, 129.78g of tertiary butyl hydroperoxide is dripped, the dripping speed is controlled to be 1 drop/s, the temperature is raised to 65 ℃ after the reaction system is stable, the reaction is carried out for 9 hours, ethanol and unreacted cyclohexane are distilled off under reduced pressure, the temperature is reduced to the room temperature, 100mL of deionized water and 200mL of chloroform are added, the mixture is stirred for 20 min at 25 ℃, the mixture is poured into a separating funnel for standing phase separation, an organic phase is washed for 3 times by the deionized water, and then the chloroform is distilled off under reduced pressure, so as to obtain an intermediate B;
s13: adding 1.86g of an intermediate B, 2.20g of lithium hydroxide and 100g of n-heptane into a three-neck flask with a mechanical stirring, a water separator and a condenser, heating to a reflux state, carrying out reflux reaction for 1.5h, cooling to 60 ℃, adding 1.58g of dimethyl pimelate and 1g of tetrabutylammonium bromide, heating to the reflux state, continuously refluxing to separate out methanol, reacting for 6h, cooling to room temperature, adding deionized water for washing for 3 times, and then decompressing to evaporate out a solvent to obtain the modified antioxidant;
the modified toughening agent is prepared by the following steps:
s51: 98.6g of tributyl phosphate and 28.2g of phosphorus pentoxide are mixed in a round-bottom flask equipped with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, stirred and reacted for 1h at 50 ℃, then 16.8g of absolute ethyl alcohol is dropped, the dropping acceleration is controlled to be 1 drop/s, and the reaction is continued for 15h at 110 ℃ to obtain an intermediate C;
s52: 89.8g of cycloprothrin, 15g of glacial acetic acid and 1g of phosphoric acid are mixed in a round bottom flask equipped with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, 80g of hydrogen peroxide is dripped into 30 min, the dripping speed is controlled to be 1 drop/s, stirring reaction is carried out for 4 hours at 50 ℃, distilled water is used for washing to be neutral, and reduced pressure distillation is carried out at 60 ℃ to obtain an intermediate D;
s53: 100g of intermediate D was dissolved in 200mL of solvent toluene and added to a reaction flask, 50mL of solvent toluene, 53.6g of intermediate C and 0.1g of triphenylphosphine were mixed at 40℃and then dropped into the reaction flask within 30 min, the dropping speed was controlled at 1 drop/s, the reaction was carried out at 70℃for 4 hours, the reaction mixture was titrated with a sodium hydroxide standard solution to pH 7, and distillation was carried out under reduced pressure at 60℃to obtain the modified toughener.
Example 2:
the embodiment is a processing technology of special materials for granulating wear-resistant and scratch-resistant automobile plastic parts, and the special materials comprise the following components in parts by weight:
8 parts of high-performance polypropylene, 100 parts of copolymerized polypropylene, 20 parts of active talcum powder, 10 parts of high-density polyethylene, 3 parts of modified toughening agent, 1 part of modified antioxidant, 3 parts of masterbatch, 0.3 part of silane coupling agent and 1.5 parts of liquid paraffin;
the processing technology of the special material for granulating the wear-resistant scratch-resistant automobile plastic part comprises the following steps:
s1: the preparation method comprises the steps of metering active talcum powder, silane coupling agent and liquid paraffin according to parts by weight, adding the ingredients into a high-speed mixer, and uniformly mixing to obtain premix;
s2: the preparation method comprises the following steps of metering and proportioning high-performance polypropylene, copolymerized polypropylene, high-density polyethylene, a toughening agent, an anti-aging agent, a compatilizer and color master batch according to parts by weight, adding premix, and uniformly mixing to obtain a blend:
s3: adding the blend into a double-screw extruder, setting proper temperature and rotating speed to extrude the materials in a molten state, and granulating by cold water bracing to obtain the special granulating material for the wear-resistant scratch-resistant automobile plastic parts;
the modified antioxidant is prepared by the following steps:
s11: placing a three-mouth bottle reactor with a stirrer and a thermometer in a constant-temperature water bath, adding 500g of water, 65.9g of 1, 4-dipiperidine-4-ol and 0.15g of catalyst, uniformly stirring, heating to 60 ℃, dropwise adding 15.6g of hydrogen peroxide, controlling the dropwise adding speed to be 2 drops/s, keeping the temperature at 60 ℃ in the dropwise adding process, preserving heat for 9 hours, adding sodium chloride after the reaction is finished, stirring for 30 min, cooling to room temperature, and filtering to obtain an intermediate A with the yield of 90%;
s12: 26.58g of intermediate A, 150.8g of cyclopentane, 240g of absolute ethyl alcohol and 6.48g of CuCl are taken respectively 2 ·2H 2 0 is put into a three-neck flask with mechanical stirring, a thermometer and a condenser tubeDropwise adding 129.78g of tert-butyl hydroperoxide, controlling the dropwise adding speed to be 1 drop/s, heating to 65 ℃ after the reaction system is stable, reacting for 9 hours, decompressing and distilling out ethanol and unreacted cyclohexane, cooling to room temperature, adding 100mL of deionized water and 200mL of chloroform, stirring for 20 min at 25 ℃, pouring into a separating funnel, standing for phase separation, washing an organic phase with deionized water for 3 times, decompressing and distilling out chloroform, and obtaining an intermediate B;
s13: adding 1.86g of an intermediate B, 2.20g of lithium hydroxide and 100g of n-heptane into a three-neck flask with a mechanical stirring, a water separator and a condenser, heating to a reflux state, carrying out reflux reaction for 1.5h, cooling to 60 ℃, adding 1.58g of dimethyl pimelate and 1g of tetrabutylammonium bromide, heating to the reflux state, continuously refluxing to separate out methanol, reacting for 6h, cooling to room temperature, adding deionized water for washing for 3 times, and then decompressing to evaporate out a solvent to obtain the modified antioxidant;
the modified toughening agent is prepared by the following steps:
s51: 98.6g of tributyl phosphate and 28.2g of phosphorus pentoxide are mixed in a round-bottom flask equipped with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, stirred and reacted for 3 hours at 60 ℃, then 16.8g of absolute ethyl alcohol is dropped, the dropping speed is controlled to be 2 drops/s, and the reaction is continued for 18 hours at 120 ℃ to obtain an intermediate C;
s52: 89.8g of cycloprothrin, 15g of glacial acetic acid and 1g of phosphoric acid are mixed in a round bottom flask equipped with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, 80g of hydrogen peroxide is dripped into 60 min, the dripping speed is controlled to be 2 drops/s, stirring reaction is carried out for 6h at 60 ℃, distilled water is used for washing to be neutral, and reduced pressure distillation is carried out at 70 ℃ to obtain an intermediate D;
s53: 100g of intermediate D was dissolved in 200mL of solvent toluene and added to a reaction flask, 50mL of solvent toluene, 53.6g of intermediate C and 0.1g of triphenylphosphine were mixed at 45℃and then dropped into the reaction flask within 60mi of water, the dropping speed was controlled to be 2 drops/s, the reaction was carried out at 80℃for 6 hours, the reaction mixture was titrated with a sodium hydroxide standard solution to pH 7, and distillation was carried out under reduced pressure at 70℃to obtain the modified toughener.
Example 3:
the embodiment is a processing technology of special materials for granulating wear-resistant and scratch-resistant automobile plastic parts, and the special materials comprise the following components in parts by weight:
8 parts of high-performance polypropylene, 110 parts of copolymerized polypropylene, 30 parts of active talcum powder, 10 parts of high-density polyethylene, 5 parts of modified toughening agent, 3 parts of modified antioxidant, 5 parts of masterbatch, 0.3 part of silane coupling agent and 1.5 parts of liquid paraffin;
the processing technology of the special material for granulating the wear-resistant scratch-resistant automobile plastic part comprises the following steps:
s1: the preparation method comprises the steps of metering active talcum powder, silane coupling agent and liquid paraffin according to parts by weight, adding the ingredients into a high-speed mixer, and uniformly mixing to obtain premix;
s2: the preparation method comprises the following steps of metering and proportioning high-performance polypropylene, copolymerized polypropylene, high-density polyethylene, a toughening agent, an anti-aging agent, a compatilizer and color master batch according to parts by weight, adding premix, and uniformly mixing to obtain a blend:
s3: adding the blend into a double-screw extruder, setting proper temperature and rotating speed to extrude the materials in a molten state, and granulating by cold water bracing to obtain the special granulating material for the wear-resistant scratch-resistant automobile plastic parts;
the modified antioxidant is prepared by the following steps:
s11: placing a three-mouth bottle reactor with a stirrer and a thermometer in a constant-temperature water bath, adding 500g of water, 65.9g of 1, 4-dipiperidine-4-ol and 0.15g of catalyst, uniformly stirring, heating to 60 ℃, dropwise adding 15.6g of hydrogen peroxide, controlling the dropwise adding speed to be 2 drops/s, keeping the temperature at 60 ℃ in the dropwise adding process, preserving heat for 9 hours, adding sodium chloride after the reaction is finished, stirring for 30 min, cooling to room temperature, and filtering to obtain an intermediate A with the yield of 90%;
s12: 26.58g of intermediate A, 150.8g of cyclopentane, 240g of absolute ethyl alcohol and 6.48g of CuCl are taken respectively 2 ·2H 2 0 is put into a three-neck flask with mechanical stirring, a thermometer and a condenser tube, 129.78g of tertiary butyl hydroperoxide is dripped, the dripping speed is controlled to be 2 drops/s, the temperature is raised to 70 ℃ after the reaction system is stable, the reaction is carried out for 10 hours, ethanol and unreacted cyclohexane are distilled off under reduced pressure, the temperature is reduced to the room temperature, 100mL of deionized water and 200mL of chloroform are added, and the mixture is stirred for 30 min at 30 DEG Cn, pouring into a separating funnel, standing for phase separation, washing an organic phase with deionized water for 4 times, and then evaporating chloroform under reduced pressure to obtain an intermediate B;
s13: adding 1.86g of an intermediate B, 2.20g of lithium hydroxide and 100g of n-heptane into a three-neck flask with a mechanical stirring, a water separator and a condenser, heating to reflux, reacting for 3 hours, cooling to 65 ℃, adding 1.58g of dimethyl pimelate and 1g of tetrabutylammonium bromide, heating to reflux, continuously refluxing to separate methanol, reacting for 8 hours, cooling to room temperature, adding deionized water for washing for 4 times, and evaporating a solvent under reduced pressure to obtain the modified antioxidant;
the modified toughening agent is prepared by the following steps:
s51: 98.6g of tributyl phosphate and 28.2g of phosphorus pentoxide are mixed in a round-bottom flask equipped with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, stirred and reacted for 3 hours at 60 ℃, then 16.8g of absolute ethyl alcohol is dropped, the dropping speed is controlled to be 2 drops/s, and the reaction is continued for 18 hours at 120 ℃ to obtain an intermediate C;
s52: 89.8g of cycloprothrin, 15g of glacial acetic acid and 1g of phosphoric acid are mixed in a round bottom flask equipped with a mechanical stirrer, a thermometer and a constant pressure dropping funnel, 80g of hydrogen peroxide is dripped into 60 min, the dripping speed is controlled to be 2 drops/s, stirring reaction is carried out for 6h at 60 ℃, distilled water is used for washing to be neutral, and reduced pressure distillation is carried out at 70 ℃ to obtain an intermediate D;
s53: 100g of intermediate D was dissolved in 200mL of solvent toluene and added to a reaction flask, 50mL of solvent toluene, 53.6g of intermediate C and 0.1g of triphenylphosphine were mixed at 45℃and then dropped into the reaction flask within 60mi of water, the dropping speed was controlled to be 2 drops/s, the reaction was carried out at 80℃for 6 hours, the reaction mixture was titrated with a sodium hydroxide standard solution to pH 7, and distillation was carried out under reduced pressure at 70℃to obtain the modified toughener.
Comparative example 1:
comparative example 1 differs from example 1 in that no modifying toughening agent was added.
Comparative example 2:
comparative example 2 a scratch-resistant automotive upholstery was prepared using the procedure of example 1 using the material disclosed in chinese patent No. cn20080023328. X.
The exclusive use of examples 1-3 and comparative examples 1-2 was examined;
the test results are shown in the following table:
as is clear from the above table, the tensile strength of the examples reaches 28.4-28.9MPa, the tensile strength of the comparative example 1 is 20.8MPa, the tensile strength of the comparative example 2 is 22.93MPa, the elongation at break of the examples is 500%, the elongation at break of the comparative example 1 is 300%, the elongation at break of the comparative example 2 is 400%, the bending strength of the examples is 38.1-38.4MPa, the bending strength of the comparative example 1 is 35.4MPa, the bending strength of the comparative example 2 is 36.0MPa, the comparative example has slight cracks when the impact strength is tested, the heat distortion temperature of the examples is 89 ℃, the heat distortion temperature of the comparative example 1 is 88 ℃, the heat distortion temperature of the comparative example 2 is 88 ℃, and all data of the examples are superior to those of the comparative example, so that the modified toughening agent prepared by the invention can lead the prepared materials to have more excellent mechanical properties when being added into special materials for automobile plastics.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (8)
1. The processing technology of the special material for granulating the wear-resistant scratch-resistant automobile plastic part is characterized by comprising the following components in parts by weight:
5-8 parts of high-performance polypropylene, 100-110 parts of copolymerized polypropylene, 20-30 parts of active talcum powder, 4-10 parts of high-density polyethylene, 3-5 parts of modified toughening agent, 1-3 parts of modified antioxidant, 3-5 parts of masterbatch, 0.2-0.3 part of silane coupling agent and 0.4-1.5 parts of liquid paraffin;
the processing technology of the special material for granulating the wear-resistant scratch-resistant automobile plastic part comprises the following steps:
s1: the preparation method comprises the steps of metering active talcum powder, silane coupling agent and liquid paraffin according to parts by weight, adding the ingredients into a high-speed mixer, and uniformly mixing to obtain premix;
s2: the preparation method comprises the following steps of metering and proportioning high-performance polypropylene, copolymerized polypropylene, high-density polyethylene, a toughening agent, an anti-aging agent, a compatilizer and color master batch according to parts by weight, adding premix, and uniformly mixing to obtain a blend:
s3: adding the blend into a double-screw extruder, setting proper temperature and rotating speed to extrude the materials in a molten state, and granulating by cold water bracing to obtain the special granulating material for the wear-resistant scratch-resistant automobile plastic parts;
the modified antioxidant is prepared by the following steps:
s11: placing the three-mouth bottle reactor in a constant-temperature water bath, adding water, 1, 4-dipiperidine-4-alcohol and a catalyst, dropwise adding hydrogen peroxide, and adding sodium chloride after the reaction is finished to obtain an intermediate A;
s12: respectively taking intermediate A, cyclopentane, absolute ethyl alcohol and CuCl 2 ·2H 2 0, putting the mixture into a three-neck flask, dropwise adding tert-butyl hydroperoxide, adding deionized water and chloroform, pouring the mixture into a separating funnel, standing and phase-separating to obtain an intermediate B;
s13: adding the intermediate B, lithium hydroxide and n-heptane into a three-neck flask, and adding dimethyl pimelate and tetrabutylammonium bromide to obtain the modified antioxidant.
2. The process for preparing the special granulating material for the wear-resistant and scratch-resistant automobile plastic parts according to claim 1, wherein the dosage ratio of the water, the 1, 4-dipiperidine-4-ol, the catalyst and the hydrogen peroxide in the step S11 is 500g:65.9g:0.15g:15.6g, wherein the mass concentration of the hydrogen peroxide is 8%, and the catalyst is ethylenediamine tetraacetic acid.
3. The process for producing a special material for granulating wear-resistant and scratch-resistant automotive plastic parts according to claim 1, wherein in step S12, the intermediate a, cyclopentane, absolute ethyl alcohol, cuCl 2 ·2H 2 0. The dosage ratio of t-butyl hydroperoxide, deionized water to chloroform was 26.58g:150.8g:240g:6.48g:129.78g:100mL:200mL.
4. The process for producing a special granulating material for wear-resistant and scratch-resistant automotive plastic parts according to claim 1, wherein the dosage ratio of the intermediate B, lithium hydroxide, n-heptane, dimethyl pimelate and tetrabutylammonium bromide in the step S13 is 1.86g:2.20g:100g:1.58g:1g.
5. The processing technology of the special granulating material for the wear-resistant and scratch-resistant automobile plastic parts, which is characterized in that the modified toughening agent is prepared by the following steps:
s51: tributyl phosphate and phosphorus pentoxide are mixed in a round-bottom flask, and then absolute ethyl alcohol is dripped into the round-bottom flask to obtain an intermediate C;
s52: mixing the cycloprothrin, glacial acetic acid and phosphoric acid in a round bottom flask, dripping hydrogen peroxide, and washing with distilled water to neutrality to obtain an intermediate D;
s53: dissolving the intermediate D in solvent toluene, adding the solvent toluene, the intermediate C and triphenylphosphine into a reaction bottle, mixing the solvent toluene, the intermediate C and the triphenylphosphine, dripping the mixture into the reaction bottle, and titrating the reaction mixture with a sodium hydroxide standard solution until the pH value is 7 to obtain the modified toughening agent.
6. The process for producing a special material for granulating wear-resistant and scratch-resistant automotive plastic parts according to claim 5, wherein the dosage ratio of tributyl phosphate, phosphorus pentoxide and absolute ethyl alcohol in the step S51 is 98.6g:28.2g:16.8g.
7. The process for producing a special material for granulating wear-resistant and scratch-resistant automotive plastic parts according to claim 5, wherein in the step S52, the dosage ratio of the cycloprothrin, the glacial acetic acid, the phosphoric acid and the hydrogen peroxide is 89.8g:15g:1g:80g.
8. The process for producing a special granulating material for wear-resistant and scratch-resistant automotive plastic parts according to claim 5, wherein the dosage ratio of the intermediate D, the intermediate C and triphenylphosphine in the step S53 is 100g:53.6g:0.1g.
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