CN107151348A - A kind of melamine waste recovery restoring method - Google Patents
A kind of melamine waste recovery restoring method Download PDFInfo
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- CN107151348A CN107151348A CN201710357717.5A CN201710357717A CN107151348A CN 107151348 A CN107151348 A CN 107151348A CN 201710357717 A CN201710357717 A CN 201710357717A CN 107151348 A CN107151348 A CN 107151348A
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- parts
- melamine
- recovery
- restoring method
- waste
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- Granted
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- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 60
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000002699 waste material Substances 0.000 title claims abstract description 55
- 238000011084 recovery Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 37
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims abstract description 30
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920000136 polysorbate Polymers 0.000 claims abstract description 14
- 239000001294 propane Substances 0.000 claims abstract description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 12
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000001298 alcohols Chemical class 0.000 claims abstract description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
- 235000011187 glycerol Nutrition 0.000 claims abstract description 6
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 4
- 239000004088 foaming agent Substances 0.000 claims description 4
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 238000005829 trimerization reaction Methods 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 239000007767 bonding agent Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical group [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- -1 melamine Amine Chemical class 0.000 claims 1
- 150000003384 small molecules Chemical class 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000009967 tasteless effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IEFWDQQGFDLKFK-UHFFFAOYSA-N 2-n,2-n-dimethyl-1,3,5-triazine-2,4,6-triamine Chemical compound CN(C)C1=NC(N)=NC(N)=N1 IEFWDQQGFDLKFK-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 125000005474 octanoate group Chemical group 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C09J161/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08J2361/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention provides a kind of melamine waste recovery restoring method, and melamine waste material is added in recovery reducing solution, resin is recycled；The recovery reducing solution includes the following component of mass parts：2,000 4000 parts of alcohols material, 10 50 parts of expoxy propane, 0 100 parts of pyridine, 0 120 parts of tween, 500 800 parts of dimethyl sulfoxide (DMSO)；The alcohols material is two kinds or three kinds in methanol, ethanol, butanol, water-soluble poval, ethylene glycol, glycerine.Method proposed by the present invention, solves the pollution problem of melamine waste material, obtained to go back the requirement that primary resin meets melmac product, can be made into melamine sheet material or binding agent, brings good economic benefit.
Description
Technical field
The invention belongs to naval stores field, and in particular to a kind of method that melamine waste recovery is utilized.
Background technology
Melamine foamed plastic sheet material is also known as melamine plate, by melmac foaming be made, with it is fire-retardant, sound absorption, every
The functions such as heat insulation.Melamine foamed plastic bulk density is only 4-12kg/m3, it is one of material of most lightweight in foamed plastics,
It is produced and application is more energy-saving.Melamine foamed plastic has the chemical constitution and crosslinked of stabilization, and chemical stability is good,
It is nontoxic, tasteless, without fiber and elegant without powder that the furniture that is made, daily necessities are molded with melamine foamed plastic, therefore in daily use chemicals
The fields such as industry, food service industry, electronics industry, interior decoration and traffic are widely used.Melmac is a kind of
Thermosetting raw material, is not required to curing agent and solidifies at a certain temperature, nontoxic, tasteless, environmental protection, is a kind of novel-section in rigid foam
Material, DEVELOPMENT PROSPECT is wide.
Melamine waste material includes the waste material or discarded melamine furniture, daily necessities of production melamine foamed plastic sheet material
Deng.Melamine waste material can be decomposed by biodegradation, or under illumination, heating condition, and the product of decomposition includes melamine
Amine, N, N- dimethyl melamine, N, N, N- trimethyl melamines etc..Melamine can not be metabolized in vivo, must be passed through
Kidney is discharged, and the degraded of melamine waste material or the product decomposed enter environment, and health, soil, water quality can be caused harm.
On the other hand, the waste leftover material in sheet fabrication, is such as directly abandoned, and can be caused to waste, be improved production cost.
The content of the invention
The problem of existing for this area, it is an object of the invention to provide a kind of melamine waste recovery reduction side
Method.
Another object of the present invention is to provide a kind of equipment for melamine waste recovery.
The technical scheme for realizing the object of the invention is：
A kind of melamine waste recovery restoring method, melamine waste material is added in recovery reducing solution, obtained
Reclaim resin；
The recovery reducing solution includes the following component of mass parts：2000-4000 parts of alcohols material, expoxy propane 10-
50 parts, 0-100 parts of pyridine, 0-120 parts of tween, 500-800 parts of dimethyl sulfoxide (DMSO)；
The alcohols material is two kinds or three in methanol, ethanol, butanol, water-soluble poval, ethylene glycol, glycerine
Kind.
Pyridine plays emulsification, and tween plays a part of softening melamine plate, and both compositions have been that auxiliary is made
With.
Described melamine waste recovery restoring method, further, including step：
1) alcohols material is well mixed, two kinds or three kinds added in pyridine, tween, dimethyl sulfoxide (DMSO), is stirred；
2) melamine waste material crush, add step 1) gained mixed solution in, add expoxy propane.
Preferably, the step 1) in, alcohols material stirring mixing 10~20 minutes adds pyridine, tween, dimethyl sub-
Two kinds in sulfone or three kinds, are stirred 15-25 minutes；The step 2) in, add after expoxy propane and react 100~150 minutes.
One of the preferred technical solution of the present invention is that melamine waste material is added in recovery reducing solution,
The recovery reducing solution includes the following component of mass parts：1800-3500 parts of small molecular alcohol, polyethylene glycol 50-
100 parts, 10-50 parts of expoxy propane, 0-100 parts of pyridine, 100-120 parts of tween, 500-800 parts of dimethyl sulfoxide (DMSO)；Described small point
Sub- alcohol is the one or more in methanol, ethanol, ethylene glycol, glycerine, butanol；
Resin is recycled, melamine foamed board is compressed to.
Wherein, the composition of raw materials of recovery resin compacting melamine foamed board is：The also mass parts of primary resin 100, catalyst
1-3 mass parts, foam stabilizer 3-4 mass parts, foaming agent 6-9 mass parts, isocyanates 80-120 mass parts；
Wherein, the catalyst is stannous octoate, and foam stabilizer is silicone oil, and foaming agent is in 141b, pentamethylene, ring isopentane
One kind.
Another optimal technical scheme of the present invention is that melamine waste material is added in recovery reducing solution, described to reclaim
Reducing solution includes the following component of mass parts：3000-4000 parts of alcohols material, 0-120 parts of tween, 10-50 parts of expoxy propane,
30-100 parts of pyridine, 500-800 parts of dimethyl sulfoxide (DMSO)；Resin is recycled, for bonding agent.
Wherein, the corner of the melamine foamed plastic sheet material of compacting is cut down with cutting sheet, or reclaims discarded trimerization
Cyanamide cystosepiment, is crushed with disintegrating apparatus, obtains chippy melamine waste material.
Wherein, the disintegrating apparatus is to be set on the axle and plane-parallel of the roller in Double roll crusher, pulverizer, roll surface
Roller tooth.
A kind of equipment for melamine waste recovery, including conveying device, cutting sheet, two disintegrating apparatus, recovery
Tank,
The conveying device includes having the gap for placing sheet material between the roller being oppositely arranged, roller；Roller is fixed on branch
On frame, the cutting sheet is fixed on the support, the cutting sheet has 1 or 2；
The direction advanced by sheet material, the disintegrating apparatus is located at the front of conveying device, and two disintegrating apparatus are relative to plate
The center line of material is symmetrically placed；The disintegrating apparatus bottom is provided with waste material tube cell, and the waste material tube cell connects the recycling can.
Preferably, the cutting sheet has 2, and the direction advanced by sheet material, the center line relative to sheet material is symmetrically placed.
The beneficial effects of the present invention are：
With the fast development of science and technology, naval stores has to comply with environmental protection, energy-conservation or cycling and reutilization, Bu Nengzao
Into the requirement of secondary pollution.According to the demand for development of environmental protection, my company proposes a kind of waste and old product of melamine material and reclaimed also
Former method, has dissolved the defect that can not be restored after organic polymer solidification.
Method proposed by the present invention, it is obtained to go back the requirement that primary resin meets melmac product, it can be made into trimerization
Cyanamide sheet material or binding agent, bring good economic benefit.
Brief description of the drawings
Fig. 1 is the top view of the equipment for melamine waste recovery；
Fig. 2 is the system schematic that melamine waste recovery is reduced；
In figure, 1. melamine foamed plastic plates, 2. cutting sheets, 3. conveying devices, 4. Double roll crushers, 5. waste powder pipelines,
501. screen clothes, 6. recycling cans, 7. reactors, 8. meters, 9. metering kettles.
Embodiment
Technical solution of the present invention is further illustrated with specific embodiment below.Those skilled in the art are it is to be understood that reality
Apply example and be merely to illustrate the present invention, be not used in limitation the scope of the present invention.
In embodiment, unless otherwise instructed, technological means used is this area conventional technology.In embodiment, plus
Each raw material entered is commercially available convenient source unless otherwise indicated.
Embodiment 1：
Referring to Fig. 1, for the equipment of melamine waste recovery, including conveying device 3, cutting sheet 2,2 roller is crushed
Machine 4, recycling can 6,
The conveying device includes having the gap for placing sheet material between the roller being oppositely arranged, roller.Roller is fixed on branch
On frame, the cutting sheet 2 is fixed on the support, the cutting sheet there are 2；Relative to sheet material center line (with sheet material traveling side
To consistent center line) it is symmetrically placed.
The direction () advanced by sheet material, Double roll crusher 4 is located at the front of conveying device in Fig. 1 from right to left, in cutting
The lower section of piece 2 sets swash plate, and the waste material scaled off is sent into pulverizer；The axle and plane-parallel of roller in pulverizer, roll surface
Upper setting roller tooth.Two disintegrating apparatus are symmetrically placed relative to the center line of sheet material；The disintegrating apparatus bottom is provided with waste powder
Pipeline 5, the waste material tube cell connects back to closed cans 6.The size of pulverizer is 600mm length, 550 high, 150mm wide.
The common specification of sheet material is 1.2m wide, and the melamine foamed plastic plate 1 of compacting is wide for 1.25m, is then placed on conveying and sets
It is standby upper, the width of needs is cut into cutting sheet.The side scaled off is fallen into Double roll crusher 4, temporary by waste powder pipeline 5
In recycling can 6.
Referring to Fig. 2, the porch of recycling can 6 is provided with screen cloth 501, can be entered by the waste powder of screen cloth into reactor 7
Row solution reclaims reaction.The reactor is also associated with metering kettle 9, and meter 8 is provided with the pipeline for connecting metering kettle.
By methanol 2000 parts of (mass parts, similarly hereinafter), 100 parts of water-soluble polyvinyl alcohol (PVA2488), while adding reactor
It is middle mix 15 minutes, stop stirring and then add 100 parts of tween, 500 parts of dimethyl sulfoxide (DMSO) to be stirred 20 minutes.
Melamine waste powder is added in reactor by the same volume of solvent, stirred 30 minutes.Again by expoxy propane
30 parts are added in reactor and are catalyzed, dissolved, and mixing time is 120 minutes.The viscous resin liquid reduced.
By test reduction resin solid content up to 78%, pH value 7.8, (25 DEG C) of viscosity is 125mpa.s.Meet foaming tree
The requirement of fat.
Embodiment 2
The gained of embodiment 1 goes back primary resin, according to proportion by weight：Also 100 parts of primary resin, 2 parts of octoate catalyst stannous, steady
3.5 parts of infusion silicone oil, 8 parts of foaming agent 141b, 100 parts of isocyanates, are compressed to sheet material according to a conventional method.
Finished product detection result：65 kilograms/m of density3, (45-65 kilograms of national standard/m3) dimensional discrepancy ± 4mm, heat conduction system
Number (25 DEG C) w/ (mK) 0.28, dimensional stability≤1.0, water absorption rate %≤2.8, compressive strength (10%) kpa >=138, envelope
Porosity 95%, oxygen index (OI) 45%.For the sheet material of excellent performance.
Embodiment 3
The acquisition be the same as Example 1 of melamine waste powder.
It will be mixed in 1800 parts of butanol, 1500 parts of methanol, 50 parts of addition reactors of water-soluble poval (PVA2488)
Stirring 15 minutes is closed, stops stirring, 115 parts of tween, 600 parts of dimethyl sulfoxide (DMSO), 50 parts of pyridine is added and is stirred again 20 minutes；
Melamine waste powder is added in agitator tank by the volume of solvent equal proportion and is stirred for the time 30 minutes, then will
50 parts of expoxy propane, addition is catalyzed, dissolved, and mixing time 120 minutes obtains viscous resin liquid.
By test reduction resin solid content up to 53%, pH value 9, (25 DEG C) of viscosity is 125mpa.s.
Embodiment 4
The acquisition be the same as Example 1 of melamine waste powder.
By 2000 parts of glycerine, 1800 parts of ethylene glycol, 100 parts of pyridine, carry out mixing 15 while adding in agitator tank
Minute, stop stirring, add 800 parts of dimethyl sulfoxide (DMSO), 100 parts of pyridine, be stirred 25 minutes；
Melamine waste powder is added into stirring by the same volume of solution, the time is 30 minutes again by 10 parts of expoxy propane
Add and be catalyzed, dissolved in agitator tank, mixing time is 120 minutes.The viscous resin liquid reduced.
By test reduction resin solid content up to 57%, pH value 9.2, (25 DEG C) of viscosity is 125mpa.s.
The dissolving of embodiment 3,4 meets the requirement for doing adhesive with method：Solid content 55.3% -57.8%, pH value 9-9.2,
(25 DEG C) of viscosity is 125mpa.s.
Embodiment above is only that the embodiment of the present invention is described, and not the scope of the present invention is entered
Row is limited, and those skilled in the art can also do numerous modifications and variations, be set not departing from the present invention on the basis of existing technology
On the premise of meter spirit, all variations and modifications that this area ordinary skill technical staff makes to technical scheme,
In the protection domain that claims of the present invention determination all should be fallen into.
Claims (10)
1. a kind of melamine waste recovery restoring method, it is characterised in that melamine waste material is added to recovery reduction molten
In liquid, resin is recycled；
The recovery reducing solution includes the following component of mass parts：2000-4000 parts of alcohols material, 10-50 parts of expoxy propane,
0-100 parts of pyridine, 0-120 parts of tween, 500-800 parts of dimethyl sulfoxide (DMSO)；
The alcohols material is two kinds or three kinds in methanol, ethanol, butanol, water-soluble poval, ethylene glycol, glycerine.
2. melamine waste recovery restoring method according to claim 1, it is characterised in that including step：
1) alcohols material is well mixed, two kinds or three kinds added in pyridine, tween, dimethyl sulfoxide (DMSO), is stirred；
2) melamine waste material crush, add step 1) gained mixed solution in, add expoxy propane.
3. melamine waste recovery restoring method according to claim 2, it is characterised in that the step 1) in, alcohol
Class material stirring mixing 10~20 minutes, two kinds or three kinds added in pyridine, tween, dimethyl sulfoxide (DMSO), 15-25 points of stirring
Clock；The step 2) in, add after expoxy propane and react 100-150 minutes.
4. the melamine waste recovery restoring method according to claim any one of 1-3, it is characterised in that by melamine
Amine waste material is added in recovery reducing solution,
The recovery reducing solution includes the following component of mass parts：1800-3500 parts of small molecular alcohol, water-soluble poval
50-100 parts, 10-50 parts of expoxy propane, 0-100 parts of pyridine, 100-120 parts of tween, 500-800 parts of dimethyl sulfoxide (DMSO)；It is described small
Molecule alcohol is the one or more in methanol, ethanol, ethylene glycol, glycerine, butanol；
Resin is recycled, melamine foamed board is compressed to.
5. melamine waste recovery restoring method according to claim 4, it is characterised in that reclaim resin compacting trimerization
The composition of raw materials of cyanamide foamed board is：Also the mass parts of primary resin 100, catalyst 1-3 mass parts, foam stabilizer 3-4 mass parts, foam
Agent 6-9 mass parts, isocyanates 80-120 mass parts；
Wherein, the catalyst is stannous octoate, and foam stabilizer is silicone oil, and foaming agent is one in 141b, pentamethylene, ring isopentane
Kind.
6. the melamine waste recovery restoring method according to any one of claims 1 to 3, it is characterised in that by trimerization
Cyanamide waste material is added in recovery reducing solution,
The recovery reducing solution includes the following component of mass parts：3000-4000 parts of alcohols material, 0-120 parts of tween, epoxy
10-50 parts of propane, 30-100 parts of pyridine, 500-800 parts of dimethyl sulfoxide (DMSO)；
Resin is recycled, for bonding agent.
7. the melamine waste recovery restoring method according to any one of claims 1 to 3, it is characterised in that with cutting
Piece cuts down the corner of the melamine foamed plastic sheet material of compacting, or reclaims discarded melamine foamed plastic plate, is set with crushing
It is standby to crush, obtain chippy melamine waste material.
8. melamine waste recovery restoring method according to claim 7, it is characterised in that the disintegrating apparatus for pair
Roller tooth is set on the axle and plane-parallel of roller in roller pulverizer, pulverizer, roll surface.
9. a kind of equipment for melamine waste recovery, it is characterised in that including conveying device, cutting sheet, two crushing
Equipment, conveyance conduit, recycling can；
The conveying device includes having the gap for placing sheet material between the roller being oppositely arranged, roller；Roller is fixed on support,
The cutting sheet is fixed on the support, the cutting sheet there are 2；
The direction advanced by sheet material, the disintegrating apparatus is located at the front of conveying device, and two disintegrating apparatus are relative to sheet material
Center line is symmetrically placed；The disintegrating apparatus bottom is provided with waste material tube cell, and the waste material tube cell connects the recycling can.
10. equipment according to claim 8, it is characterised in that the cutting sheet has 2, the direction advanced by sheet material, phase
It is symmetrically placed for the center line of sheet material.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813485A (en) * | 2017-11-01 | 2018-03-20 | 郑州峰泰纳米材料有限公司 | A kind of melamine foams and fiber blend preparation technology |
| CN111747901A (en) * | 2020-07-15 | 2020-10-09 | 中国科学院山西煤炭化学研究所 | Method for selectively breaking C-N bond in melamine resin |
| CN111777566A (en) * | 2020-07-15 | 2020-10-16 | 中国科学院山西煤炭化学研究所 | Method for degrading waste melamine resin and recycling melamine by two-step method |
| CN111875843A (en) * | 2020-07-15 | 2020-11-03 | 中国科学院山西煤炭化学研究所 | Method for selectively breaking C-O bond in melamine resin |
| ES2951680A1 (en) * | 2022-03-15 | 2023-10-24 | Agood Services & Man S L | PROCEDURE FOR THE TREATMENT AND VALORIZATION OF DISCARDED MELAMINE SHEETS OR MELAMINE PAPER (Machine-translation by Google Translate, not legally binding) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003211592A (en) * | 2002-01-22 | 2003-07-29 | Hiraoka & Co Ltd | Decomposable composite fire-retardant sheet and method for utilizing waste thereof |
| CN102197072A (en) * | 2008-11-07 | 2011-09-21 | 旭化成建材株式会社 | Expandable phenolic resin composition, phenolic resin foam, and process for producing the phenolic resin foam |
| CN103146016A (en) * | 2013-04-03 | 2013-06-12 | 山东轻工业学院 | Method for preparing melamine-formaldehyde foam by taking rosin as pore-foaming agent |
| US20160326327A1 (en) * | 2015-05-07 | 2016-11-10 | Chengdu Yulong Chemical Co. Ltd. | High-density melamine foam and preparation method thereof |
-
2017
- 2017-05-19 CN CN201710357717.5A patent/CN107151348B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003211592A (en) * | 2002-01-22 | 2003-07-29 | Hiraoka & Co Ltd | Decomposable composite fire-retardant sheet and method for utilizing waste thereof |
| CN102197072A (en) * | 2008-11-07 | 2011-09-21 | 旭化成建材株式会社 | Expandable phenolic resin composition, phenolic resin foam, and process for producing the phenolic resin foam |
| CN103146016A (en) * | 2013-04-03 | 2013-06-12 | 山东轻工业学院 | Method for preparing melamine-formaldehyde foam by taking rosin as pore-foaming agent |
| US20160326327A1 (en) * | 2015-05-07 | 2016-11-10 | Chengdu Yulong Chemical Co. Ltd. | High-density melamine foam and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813485A (en) * | 2017-11-01 | 2018-03-20 | 郑州峰泰纳米材料有限公司 | A kind of melamine foams and fiber blend preparation technology |
| CN111747901A (en) * | 2020-07-15 | 2020-10-09 | 中国科学院山西煤炭化学研究所 | Method for selectively breaking C-N bond in melamine resin |
| CN111777566A (en) * | 2020-07-15 | 2020-10-16 | 中国科学院山西煤炭化学研究所 | Method for degrading waste melamine resin and recycling melamine by two-step method |
| CN111875843A (en) * | 2020-07-15 | 2020-11-03 | 中国科学院山西煤炭化学研究所 | Method for selectively breaking C-O bond in melamine resin |
| CN111875843B (en) * | 2020-07-15 | 2022-03-29 | 中国科学院山西煤炭化学研究所 | Method for selectively breaking C-O bond in melamine resin |
| ES2951680A1 (en) * | 2022-03-15 | 2023-10-24 | Agood Services & Man S L | PROCEDURE FOR THE TREATMENT AND VALORIZATION OF DISCARDED MELAMINE SHEETS OR MELAMINE PAPER (Machine-translation by Google Translate, not legally binding) |
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