CN111560154A - Method for preparing air conditioner remote controller shell by using waste PC material - Google Patents
Method for preparing air conditioner remote controller shell by using waste PC material Download PDFInfo
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- CN111560154A CN111560154A CN202010443962.XA CN202010443962A CN111560154A CN 111560154 A CN111560154 A CN 111560154A CN 202010443962 A CN202010443962 A CN 202010443962A CN 111560154 A CN111560154 A CN 111560154A
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- air conditioner
- flame retardant
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- 239000000463 material Substances 0.000 title claims abstract description 66
- 239000002699 waste material Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003063 flame retardant Substances 0.000 claims abstract description 60
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000002245 particle Substances 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000006229 carbon black Substances 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 25
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 21
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 19
- 229920002545 silicone oil Polymers 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 239000011257 shell material Substances 0.000 claims description 47
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 20
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 16
- DRNGLYHKYPNTEA-UHFFFAOYSA-N 4-azaniumylcyclohexane-1-carboxylate Chemical compound NC1CCC(C(O)=O)CC1 DRNGLYHKYPNTEA-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- ZQHYXNSQOIDNTL-UHFFFAOYSA-N 3-hydroxyglutaric acid Chemical compound OC(=O)CC(O)CC(O)=O ZQHYXNSQOIDNTL-UHFFFAOYSA-N 0.000 claims description 7
- 229920000877 Melamine resin Polymers 0.000 claims description 7
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011363 dried mixture Substances 0.000 claims description 5
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims description 5
- LMDZBCPBFSXMTL-UHFFFAOYSA-N 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide Substances CCN=C=NCCCN(C)C LMDZBCPBFSXMTL-UHFFFAOYSA-N 0.000 claims description 4
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- YEDUAINPPJYDJZ-UHFFFAOYSA-N 2-hydroxybenzothiazole Chemical compound C1=CC=C2SC(O)=NC2=C1 YEDUAINPPJYDJZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- NPZTUJOABDZTLV-UHFFFAOYSA-N hydroxybenzotriazole Substances O=C1C=CC=C2NNN=C12 NPZTUJOABDZTLV-UHFFFAOYSA-N 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000000967 suction filtration Methods 0.000 claims description 3
- 238000009210 therapy by ultrasound Methods 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 abstract description 22
- 239000002994 raw material Substances 0.000 abstract description 6
- 239000000758 substrate Substances 0.000 abstract description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 16
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical group [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- YAFOVCNAQTZDQB-UHFFFAOYSA-N octyl diphenyl phosphate Chemical compound C=1C=CC=CC=1OP(=O)(OCCCCCCCC)OC1=CC=CC=C1 YAFOVCNAQTZDQB-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- ASOKPJOREAFHNY-UHFFFAOYSA-N 1-Hydroxybenzotriazole Chemical compound C1=CC=C2N(O)N=NC2=C1 ASOKPJOREAFHNY-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical group [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- 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
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6515—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having three nitrogen atoms as the only ring hetero atoms
- C07F9/6521—Six-membered rings
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
- C08K2003/3018—Sulfides of magnesium, calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a method for preparing an air conditioner remote controller shell by using a waste PC material, which comprises the following steps: firstly, the following components in parts by weight: 50-60 parts of ABS particles, 13-17 parts of waste PC materials, 3-4 parts of flame retardants, 8-10 parts of reinforcing fillers and 1-2 parts of hydroxyl silicone oil; secondly, preparing waste PC particles; thirdly, drying the ABS particles, the waste PC particles and the reinforced filler; and fourthly, injection molding. The waste PC material is adopted as one of the substrate raw materials, the environment-friendly requirement is met, and the PC can improve the performances of heat resistance, toughness, flame retardance, good processability and the like of the ABS resin; the flame retardant is added into the base material, so that the flame retardant property of the material can be further improved; the ardealite and white carbon black are modified and then added into the base material, so that the material is reinforced and toughened, and the prepared air conditioner remote controller shell has good falling resistance and flame retardance.
Description
Technical Field
The invention belongs to the field of plastic processing, and particularly relates to a method for preparing an air conditioner remote controller shell by using a waste PC material.
Background
The remote controller is a wireless transmitting device, and codes the key information by modern digital coding technology, transmits light waves by an infrared diode, the light waves convert received infrared signals into electric signals by an infrared receiver of a receiver, the electric signals are decoded by a processor, and corresponding instructions are demodulated to achieve the operation requirements of controlling equipment such as a set top box and the like. The remote controller is generally internally provided with an integrated circuit and various original components, the outside is provided with a plastic shell and keys, the traditional remote controller shell is mainly made of single materials such as ABS (acrylonitrile butadiene styrene), and the remote controller, particularly a household remote controller, is easy to drop and break when being used and influences the service life of the remote controller, so that the improvement of the anti-falling performance of the remote controller shell is an important direction for improving the remote controller shell at the present stage.
Chinese patent with the patent number CN201710895848.9 discloses a modified ABS composite material for a remote controller shell, which comprises the following raw materials in parts by weight: 80-100 parts of modified ABS resin, 30-50 parts of polyphenylene sulfide, 2-4 parts of compatilizer, 2-4 parts of diphenyl-octyl phosphate, 1.5-2.5 parts of tricresyl phosphate, 50-60 parts of filler, 2-4 parts of coumarone resin and 2-4 parts of antioxidant; the modified ABS resin is prepared by the following process: and (3) carrying out irradiation treatment on the ABS resin, adding polybutadiene, heating and stirring, adding polyamide and continuously stirring to obtain the modified ABS resin. Although the impact resistance of the composite material can be improved by adding the polyphenylene sulfide and the diphenyl-octyl phosphate, the compatibility of the substance and the filler with the resin matrix has defects, so that the strength and the falling resistance of the composite material still have defects.
Disclosure of Invention
The invention aims to provide a method for preparing an air conditioner remote controller shell by using a waste PC material, wherein the waste PC material is used as one of the substrate raw materials, so that not only can the waste resources be reused and the environmental protection requirement be met, but also the PC can play a role in improving the performances of heat resistance, toughness, flame retardance, good processability and the like on ABS resin; by adding the flame retardant into the base material, the flame retardant performance of the material can be further improved, and the flame retardant can act with the white carbon black in the reinforced filler to achieve the optimal flame retardant effect; the ardealite and the white carbon black are added into the base material after being modified, so that the effect of enhancing and toughening the material is achieved, the mechanical property of the material is improved, and the prepared air conditioner remote controller shell has good falling resistance and flame retardance, and has excellent use safety and service life.
The purpose of the invention can be realized by the following technical scheme:
a method for preparing an air conditioner remote controller shell by using waste PC materials comprises the following steps:
firstly, the following components in parts by weight: 50-60 parts of ABS particles, 13-17 parts of waste PC materials, 3-4 parts of flame retardants, 8-10 parts of reinforcing fillers and 1-2 parts of hydroxyl silicone oil;
secondly, cleaning, drying and crushing the waste PC material, and sieving the waste PC material with a 80-mesh sieve to obtain waste PC particles;
thirdly, drying the ABS particles, the waste PC particles and the reinforcing filler in an electrothermal constant-temperature air-blast drying oven at 80 ℃ for 4-5 hours to obtain a dry mixture;
and fourthly, extruding and granulating the dried mixture, the residual flame retardant and the hydroxyl silicone oil in a double-screw extruder to obtain a shell material, and performing injection molding on the shell material to obtain the shell of the air conditioner remote controller.
Further, the flame retardant is prepared by the following method:
s1, dissolving melamine and 3-hydroxyglutaric acid in dichloromethane, stirring and reacting for 3-4h at room temperature by taking EDCI and HOBT as condensing agents with 1.1 equivalent weight, washing for 3-4 times by using ethanol and deionized water after the reaction is finished, extracting by using ethyl acetate, and drying to obtain an intermediate;
s2, adding 2.4kg of intermediate and 4.0kg of phosphorous acid into a reaction kettle provided with a reflux condenser tube, adding 1.2kg of hydrochloric acid, stirring at normal temperature for 60-70min, slowly dropwise adding 0.8kg of hydrochloric acid into the reaction kettle by using a constant-pressure dropping funnel, controlling the dropping speed to ensure that the dropwise adding of the hydrochloric acid is finished within 160min after 150 plus of materials, then continuing stirring for 2h, slowly increasing the temperature in the reaction kettle to 95-96 ℃, then starting reflux stirring, reacting for 7-8h, cooling, standing the reaction solution, filtering, adding the filtrate into the reaction kettle, and distilling to remove the solvent to obtain viscous liquid, namely the flame retardant.
Further, the mass fraction of the hydrochloric acid is 30%.
Further, the reinforcing filler is prepared by the following method:
1) uniformly mixing phosphogypsum and white carbon black according to the mass ratio of 1:2, adding a mixed filler into DMF according to the solid-to-liquid ratio of 1g:15-20mL, and stirring and uniformly mixing;
2) adding 4-aminocyclohexanecarboxylic acid into the mixed solution, firstly carrying out ultrasonic treatment for 10-12min, then heating to 80-90 ℃ under the condition of stirring, reacting for 4-5h, carrying out suction filtration, washing with absolute ethyl alcohol and deionized water for 3-4 times respectively, and drying to obtain the reinforcing filler.
Furthermore, the adding amount of the 4-aminocyclohexanecarboxylic acid is 4-5% of the mass of the system.
The invention has the beneficial effects that:
the invention adds fire retardant into the shell material, and adopts self-made intermediate and phosphoric acid to synthesize the fire retardant, namely-NH on melamine molecule2Condensation reaction with-COOH on 3-hydroxyglutaric acid molecule, under the influence of steric hindrance, only one end of carboxyl on 3-hydroxyglutaric acid can participate in reaction by controlling reaction conditions to form intermediate molecule; the formed intermediate molecule contains hydroxyl and unreacted carboxyl; hydroxyl on the intermediate molecule reacts with phosphorous acid to graft phosphoric acid molecules on the intermediate molecule to form a synthetic product containing nitrogen heterocycle of melamine and phosphoric acid, wherein the product is a phosphorus-nitrogen type flame retardant; the flame retardant is added into a material matrix, so that the flame retardance of the remote controller shell can be effectively improvedThe use safety performance of the remote controller can be improved; in addition, the flame retardant and the white carbon black in the filler act to form a strong flame retardant effect;
the invention adds the reinforcing filler into the shell material, adopts 4-aminocyclohexanecarboxylic acid to carry out surface modification on phosphogypsum and white carbon black, carboxyl contained on 4-aminocyclohexanecarboxylic acid molecules can react with hydroxyl on the surfaces of the phosphogypsum and white carbon black particles and is grafted on the surfaces of the phosphogypsum/white carbon black particles, so that the agglomeration phenomenon between the phosphogypsum and the white carbon black particles can be weakened, in addition, the 4-aminocyclohexanecarboxylic acid molecules grafted on the particle surfaces contain amino functional groups, amino can react with-COOH on the surfaces of flame retardant molecules, the binding force between the white carbon black and the flame retardant is improved, the white carbon black plays a role in synergistic enhancement on the flame retardant, the addition of the white carbon black enables the composite material to generate a Si-O-P cross-linked network structure in burning residual carbon, and the continuity and the density of a carbon layer, the oxygen-insulating and heat-insulating effects are better exerted, so that the flame retardant property of the alloy is improved; the main component of the phosphogypsum is CaSO4·2H2O, the ardealite and the white carbon black can be more uniformly filled in holes of the material after surface modification, so that the material is toughened and enhanced, and the shell material has good mechanical properties;
the waste PC material is adopted as one of the substrate raw materials, so that not only can the waste resources be recycled and the environmental protection requirement be met, but also the performances of heat resistance, toughness, flame retardance, good processability and the like of the PC to the ABS resin can be improved; by adding the flame retardant into the base material, the flame retardant performance of the material can be further improved, and the flame retardant can act with the white carbon black in the reinforced filler to achieve the optimal flame retardant effect; the ardealite and the white carbon black are added into the base material after being modified, so that the effect of enhancing and toughening the material is achieved, the mechanical property of the material is improved, and the prepared air conditioner remote controller shell has good falling resistance and flame retardance, and has excellent use safety and service life.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for preparing an air conditioner remote controller shell by using waste PC materials comprises the following steps:
firstly, the following components in parts by weight: 50-60 parts of ABS particles, 13-17 parts of waste PC materials, 3-4 parts of flame retardants, 8-10 parts of reinforcing fillers and 1-2 parts of hydroxyl silicone oil;
secondly, cleaning, drying and crushing the waste PC material, and sieving the waste PC material with a 80-mesh sieve to obtain waste PC particles;
thirdly, drying the ABS particles, the waste PC particles and the reinforcing filler in an electrothermal constant-temperature air-blast drying oven at 80 ℃ for 4-5 hours to obtain a dry mixture;
fourthly, extruding and granulating the dry mixture, the rest of the flame retardant and the hydroxyl silicone oil in a double-screw extruder to obtain a shell material, and performing injection molding on the shell material to obtain the shell of the air conditioner remote controller;
the flame retardant is prepared by the following method:
s1, dissolving melamine and 3-hydroxyglutaric acid in dichloromethane, taking EDCI (1-ethyl- (3-dimethylaminopropyl) carbodiimide hydrochloride) and HOBT (1-hydroxybenzotriazole) as condensing agents, stirring at room temperature for reacting for 3-4h by 1.1 equivalent (the ratio of the condensing agents to reactants is 1.1:1), washing with ethanol and deionized water for 3-4 times after the reaction is finished, extracting with ethyl acetate, and drying to obtain an intermediate;
-NH on melamine molecule2Condensation reaction with-COOH on 3-hydroxyglutaric acid molecule, under the influence of steric hindrance, only one end of carboxyl on 3-hydroxyglutaric acid can participate in reaction by controlling reaction conditions to form intermediate molecule; the formed intermediate molecule contains hydroxyl and unreacted carboxyl;
s2, adding 2.4kg of intermediate and 4.0kg of phosphorous acid into a reaction kettle provided with a reflux condenser tube, adding 1.2kg of hydrochloric acid, stirring at normal temperature for 60-70min, slowly dropwise adding 0.8kg of hydrochloric acid (the mass fraction of the hydrochloric acid is 30%) into the reaction kettle by using a constant-pressure dropping funnel, controlling the dropping speed to ensure that the hydrochloric acid is dropwise added within 160min after 150 plus materials are added, then continuously stirring for 2h, slowly increasing the temperature in the reaction kettle to 95-96 ℃, then starting reflux stirring, reacting for 7-8h, cooling, standing the reaction solution, filtering, adding the filtrate into the reaction kettle, distilling to remove the solvent to obtain viscous liquid, and obtaining the flame retardant;
hydroxyl on the intermediate molecule reacts with phosphorous acid to graft phosphoric acid molecules on the intermediate molecule to form a synthetic product containing nitrogen heterocycle of melamine and phosphoric acid, wherein the product is a phosphorus-nitrogen type flame retardant; the flame retardant is added into the material matrix, so that the flame retardant property of the remote controller shell can be effectively improved, and the use safety performance of the remote controller is improved; in addition, the flame retardant and the white carbon black in the filler act to form a strong flame retardant effect;
the reinforcing filler is prepared by the following method:
1) uniformly mixing phosphogypsum and white carbon black according to the mass ratio of 1:2, adding a mixed filler into DMF according to the solid-to-liquid ratio of 1g:15-20mL, and stirring and uniformly mixing;
2) adding 4-aminocyclohexane carboxylic acid (the addition of the 4-aminocyclohexane carboxylic acid is 4-5% of the mass of the system) into the mixed solution, firstly carrying out ultrasonic treatment for 10-12min, then heating to 80-90 ℃ under the condition of stirring, reacting for 4-5h, carrying out suction filtration, washing for 3-4 times respectively by using absolute ethyl alcohol and deionized water, and drying to obtain a reinforced filler;
the 4-aminocyclohexanecarboxylic acid is adopted to carry out surface modification on phosphogypsum and white carbon black, carboxyl contained on 4-aminocyclohexanecarboxylic acid molecules can react with hydroxyl on the surfaces of the phosphogypsum and the white carbon black particles and is grafted on the surfaces of the phosphogypsum/the white carbon black particles, the agglomeration phenomenon between the phosphogypsum/the white carbon black particles can be weakened, in addition, the 4-aminocyclohexanecarboxylic acid molecules grafted on the particle surfaces contain amino functional groups, amino can react with-COOH on the surfaces of flame retardant molecules, the bonding force between the white carbon black and the flame retardant is improved, and the white carbon black plays a synergistic role in enhancing the flame retardantThe addition of the white carbon black enables the composite material to generate a Si-O-P cross-linked network structure in the burning residual carbon, increases the continuity and the density of a carbon layer, and enables the carbon layer to better play the effects of oxygen insulation and heat insulation, thereby improving the flame retardant property of the alloy; the main component of the phosphogypsum is CaSO4·2H2And O, the ardealite and the white carbon black can be more uniformly filled in holes of the material after surface modification, so that the material is toughened and reinforced, and the shell material has good mechanical properties.
Example 1
A method for preparing an air conditioner remote controller shell by using waste PC materials comprises the following steps:
firstly, the following components in parts by weight: 50 parts of ABS particles, 13 parts of waste PC materials, 3 parts of flame retardants, 8 parts of reinforcing fillers and 1 part of hydroxyl silicone oil;
secondly, cleaning, drying and crushing the waste PC material, and sieving the waste PC material with a 80-mesh sieve to obtain waste PC particles;
thirdly, drying the ABS particles, the waste PC particles and the reinforcing filler in an electrothermal constant-temperature blast drying oven at 80 ℃ for 4 hours to obtain a dry mixture;
and fourthly, extruding and granulating the dried mixture, the residual flame retardant and the hydroxyl silicone oil in a double-screw extruder to obtain a shell material, and performing injection molding on the shell material to obtain the shell of the air conditioner remote controller.
Example 2
A method for preparing an air conditioner remote controller shell by using waste PC materials comprises the following steps:
firstly, the following components in parts by weight: 55 parts of ABS particles, 15 parts of waste PC materials, 3.5 parts of flame retardants, 9 parts of reinforcing fillers and 1.5 parts of hydroxyl silicone oil;
secondly, cleaning, drying and crushing the waste PC material, and sieving the waste PC material with a 80-mesh sieve to obtain waste PC particles;
thirdly, drying the ABS particles, the waste PC particles and the reinforcing filler in an electrothermal constant-temperature air-blast drying oven at 80 ℃ for 4.5 hours to obtain a dry mixture;
and fourthly, extruding and granulating the dried mixture, the residual flame retardant and the hydroxyl silicone oil in a double-screw extruder to obtain a shell material, and performing injection molding on the shell material to obtain the shell of the air conditioner remote controller.
Example 3
A method for preparing an air conditioner remote controller shell by using waste PC materials comprises the following steps:
firstly, the following components in parts by weight: 60 parts of ABS particles, 17 parts of waste PC materials, 4 parts of flame retardants, 10 parts of reinforcing fillers and 2 parts of hydroxyl silicone oil;
secondly, cleaning, drying and crushing the waste PC material, and sieving the waste PC material with a 80-mesh sieve to obtain waste PC particles;
thirdly, drying the ABS particles, the waste PC particles and the reinforcing filler in an electrothermal constant-temperature blast drying oven at 80 ℃ for 5 hours to obtain a dry mixture;
and fourthly, extruding and granulating the dried mixture, the residual flame retardant and the hydroxyl silicone oil in a double-screw extruder to obtain a shell material, and performing injection molding on the shell material to obtain the shell of the air conditioner remote controller.
Comparative example 1
The flame retardant in example 1 was replaced with a conventional phosphorus-nitrogen flame retardant, and the remaining raw materials and preparation process were not changed.
Comparative example 2
The reinforcing filler in example 1 was changed to the same amount of phosphogypsum and white carbon black, and the remaining raw materials and the preparation process were unchanged.
Comparative example 3
ABS plastic.
The housing plastics of examples 1 to 3 and comparative examples 1 to 3 were injection molded into test bars and the following performance tests were carried out: testing tensile properties with reference to GB/T1040-2006; testing impact performance by referring to GB/T1843-2008; testing the flame retardant performance by referring to ASTM D2863; the test results are shown in the following table:
as can be seen from the above table,the materials obtained in examples 1 to 3 had tensile strengths of 47.2 to 48.2MPa, elongations at break of 39.6 to 40.5% and notched impact strengths of 23.5 to 26.7 kJ. m-2The shell material prepared by the invention has higher strength and toughness and excellent mechanical property; the limited oxygen index of the materials prepared in the examples 1 to 3 is 28.5 to 29.9 percent, and the UL94 grades are V-0 grades, which shows that the shell material prepared by the invention has extremely high flame retardant property; the combination of comparative example 1 shows that although the self-made flame retardant is a phosphorus-nitrogen flame retardant, the flame retardant and the white carbon black in the reinforcing filler can act synergistically, so that the flame retardant effect can be more fully exerted, and the material is endowed with more excellent flame retardant property; the comparison example 2 is combined to show that after the phosphogypsum and the white carbon black are modified, the agglomeration phenomenon can be weakened, the uniform dispersion of the phosphogypsum and the white carbon black in the base material is promoted, the reinforcing and toughening effects are more fully exerted, and in addition, the white carbon black is modified to have interaction with the flame retardant, so that the flame retardant effect of the flame retardant can be synergistically enhanced; the remote controller shell is manufactured by adopting the material prepared by the invention, so that the remote controller has higher service performance and flame retardant property.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A method for preparing an air conditioner remote controller shell by using waste PC materials is characterized by comprising the following steps:
firstly, the following components in parts by weight: 50-60 parts of ABS particles, 13-17 parts of waste PC materials, 3-4 parts of flame retardants, 8-10 parts of reinforcing fillers and 1-2 parts of hydroxyl silicone oil;
secondly, cleaning, drying and crushing the waste PC material, and sieving the waste PC material with a 80-mesh sieve to obtain waste PC particles;
thirdly, drying the ABS particles, the waste PC particles and the reinforcing filler in an electrothermal constant-temperature air-blast drying oven at 80 ℃ for 4-5 hours to obtain a dry mixture;
and fourthly, extruding and granulating the dried mixture, the residual flame retardant and the hydroxyl silicone oil in a double-screw extruder to obtain a shell material, and performing injection molding on the shell material to obtain the shell of the air conditioner remote controller.
2. The method for preparing the air conditioner remote controller shell by using the waste PC material as claimed in claim 1, wherein the flame retardant is prepared by the following method:
s1, dissolving melamine and 3-hydroxyglutaric acid in dichloromethane, stirring and reacting for 3-4h at room temperature by taking EDCI and HOBT as condensing agents with 1.1 equivalent weight, washing for 3-4 times by using ethanol and deionized water after the reaction is finished, extracting by using ethyl acetate, and drying to obtain an intermediate;
s2, adding 2.4kg of intermediate and 4.0kg of phosphorous acid into a reaction kettle provided with a reflux condenser tube, adding 1.2kg of hydrochloric acid, stirring at normal temperature for 60-70min, slowly dropwise adding 0.8kg of hydrochloric acid into the reaction kettle by using a constant-pressure dropping funnel, controlling the dropping speed to ensure that the dropwise adding of the hydrochloric acid is finished within 160min after 150 plus of materials, then continuing stirring for 2h, slowly increasing the temperature in the reaction kettle to 95-96 ℃, then starting reflux stirring, reacting for 7-8h, cooling, standing the reaction solution, filtering, adding the filtrate into the reaction kettle, and distilling to remove the solvent to obtain viscous liquid, namely the flame retardant.
3. The method for preparing the air conditioner remote controller shell by using the waste PC material as claimed in claim 2, wherein the mass fraction of the hydrochloric acid is 30%.
4. The method for preparing the air conditioner remote controller shell by using the waste PC material as claimed in claim 1, wherein the reinforcing filler is prepared by the following method:
1) uniformly mixing phosphogypsum and white carbon black according to the mass ratio of 1:2, adding a mixed filler into DMF according to the solid-to-liquid ratio of 1g:15-20mL, and stirring and uniformly mixing;
2) adding 4-aminocyclohexanecarboxylic acid into the mixed solution, firstly carrying out ultrasonic treatment for 10-12min, then heating to 80-90 ℃ under the condition of stirring, reacting for 4-5h, carrying out suction filtration, washing with absolute ethyl alcohol and deionized water for 3-4 times respectively, and drying to obtain the reinforcing filler.
5. The method for preparing the air conditioner remote controller shell by using the waste PC material as claimed in claim 4, wherein the addition amount of the 4-aminocyclohexanecarboxylic acid is 4-5% of the mass of the system.
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| CN114989508A (en) * | 2022-06-07 | 2022-09-02 | 安徽蒙特尔电缆集团有限公司 | Aging-resistant cable and processing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114989508A (en) * | 2022-06-07 | 2022-09-02 | 安徽蒙特尔电缆集团有限公司 | Aging-resistant cable and processing method thereof |
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Application publication date: 20200821 |