Additives sunt momenti rudis materiae in Flexilis industria. Quamvis moles parva effectus est valde magna. Polyurethane elastomers non potest separari ab additives a synthesis dispensando et application.according ad diversas partes, potest dividi in synthetica ratio, immutatio et operatio ratio, Vulcanization system et tutela ratio quattuor auxilia.
Synthetica auxilium
I Catalyst et inhibitor
In the synthesis of polyurethane elastomers, in order to accelerate the speed of the main reaction, often need to add catalysts, commonly used catalysts are tertiary amine and organotin two categories, tertiary amines are triethylenediamine, triethylenediamine, trimethylbenzylamine, dimethylethanolamine, morphine and so on, among which triethylene Diamine est maxime momenti; Organotin includit stannous caprylatum, dibutyl stannous et sic est. Praeterea, sunt organicum Mercurium, aeris, ducere et ferrum, cum Mercurius et Mercurius maxima, ut plumbum caprylatum et phenylmercuric acetate. Organicum dibasic acida ut adipica acid et Azelaic Acidum potest esse ut catalysts ad effundendum Flexilis Polyether Polyurethane.
II torquem extender et torquem extender crosslinking agente
In synthesis Polyurethane Elastomers, torquem extender refers to Diiols et binarii Amines, quae sunt essentialis in catena incrementum reactionem. Torquem extensio crosslinking agente refert ad compositum quod participat in catena incrementum reactionem et potest formare crosslinking puncta inter torquem nodorum, ut tres alcohols et quattuor alcohols, alias non idoneam, et torquem extensio, alias non potest esse, et catena extensio, alias, ut solebat: Thermoplastic polyurethane elastomers tantum utor Diol; Mixta Polyurethane Elastomers potest uti vel Diolas aut Allyl Aether Diols.
Modifier tractantem agente
Quidam ex his additives potest amplio perficientur et species in productum, et aliqui potest amplio operatio processus, ut plasticizer, gerunt reducer, luber, filler, colorant et release agente.
I plasticizer
Plasticizer est maxime in polyurethane compositis. Ad usum est ad augendam plasticity compositum, amplio processus proprietas et humilis temperatus proprietas de Vulcanized Flexilis et reducere duritiam et elongationem vires Vulcanized Flexilis. Quantum de plasticizer debet esse nimis magna, aliter non erit redigendum gerunt resistentia Vulcanized Flexilis. Polyurethane Flexilis habet fortis verticitatem, ita communem electionem Suspendisse Plasticizer. Phthalates, PHOSPHATE issters, aliphatic alkyds et alia resins, ut Dimethoxy-glycol phthalate, Tritoluene PHOSPHATE, Dipropylene Glycol PHTHALATE, Tithylene Triticum Dinononate, Kumaron-Doetyl Sebacate adhibetur, quod cum DOCTYLLENT Sebacate est usus, quod cum diotyl Phaenomenon occurs post Vulcanization. Cum per Gumaron Resinam, in Tensile vires est altior, in perpetuum deformatio est parvum, sed duritia est reducitur manifesto; Cum tricresol phosphite adhibetur, quod est Tensile vires est inferior ad quod de Cougallon resinae, sed duritiam reducitur manifesto.
II gerunt reducer
In aliqua occasiones, ut ad redigendum friction coefficientem Polyurethane Elastomer et amplius amplio ad gerunt resistentia, necesse est addere gerunt reducendo agentibus in Polyurethane, Titanium, quod Modified Material est auto-Lubricating proprietatibus, usus est ut a se-Lubricating proprietatibus, usus est ut a seipso, et quodammodo, usus Gestus, bushing et aliis partibus, habet magnam oeconomicam significationem.
III lubricant
In lubricant usus est in Polyurethane Elastomer est maxime in processus of thermoplastic et mixta Elastomer. Stearic acidum et ejus sales, paraffin et steeramide sunt communiter.
04 Release Agent
Release agente est necessaria operating agente in productio trium genera polyurethane elastomer products. Polyurethane est fortis polarifer materia. Is est fortis vinculum vi cum metallum et solus Polymer materiae. Sine releasing agente, products sunt difficile venire de fingunt. Et plerumque solebant release agentia sunt silicone Flexilis, Silicone Ester, Silicone oleum, saponem et paraffin, etc non-polaris polymer materiae ut polyethylene, Silicone potest etiam in spargit, ut removere frictio vel spargit release agente et ad frictionem aut spargit release agente et in Release.
V filler
Fillers sunt additae ad redigendum uber costs et amplio calor resistentia, reducere DECREMENTUM et coefficientem de scelerisque expansion et aliis proprietatibus. In miscentes type Polyurethane rubber est saepe additae ad 20-30 exemplaria carbonis nigrum, ad propositum non est confirma, sed ut corporalis et mechanica proprietatibus rubber basic immutari sub praemissa reducendo sumptus products. With the increase of the amount of carbon black, the tensile strength and elongation of the rubber gradually decreased, the hardness rose straight, different specifications of carbon black on the strength and other properties are different, with easy to mix black as the best, followed by wear-resistant carbon black, semi-reinforced carbon black is poor. Alia fillers ut lutum, album ipsum nigrum, calcium carbonate, Barium sulfate, etc., potest etiam esse.
VI Colorant
Polyurethane elastomer products sunt fugatur, pulchra et liberalis species pendeat in Colorant. Sunt duo genera colorants, organicum dyes et inorganicis pigmentorum, organicum dyees sunt plerumque in thermoplastic polyurethane products, exornantur et speciosa iniectio partes et extrusionem partes. The coloring of elastomer products generally have two ways: one is the pigment additives and oligomer polyol grinding into the mother liquor, and then the appropriate amount of the mother liquor and oligomer polyol mixed evenly, and then after heating vacuum dehydration and isocyanate component reaction products, such as thermoplastic polyurethane color particle and color paving materials; Alius modum est pigmento et aliis additives et oligomer polyols aut plasticizer molere in color crustulum et color crustulum, post calefacit vacuo siccitatibus, packaging subsidiis. Cum usus, addere paulo color crustulum ad prepolymer, movent aequaliter et reactionem cum catenam extensio extensio crosslinking agente effundere products. Hoc modus est maxime usus est Moca Vulcanization Ratio. Pigmento contentus in color crustulum rationes circiter X% -30%. Et ELOGIUM moles color crustulum in products est plerumque minus quam 0.1%.
Vulcanizing agente maxime refers to the Vulcanizing agente et accelerator, tantum in mixta polyurethane elastomers. Vulcanizing agente includit isocyanate, peroxide et sulphuris. Isocyanate esters sunt communiter in TDI et ejus Dimer, MDI Dimer et Papi, etc., et crosslinking vinculum generatae est uryl formate vinculum, propter aquam, sic necesse est ad curam ad salus et ad aquas in compositis.
Et commoda usura isocyanate sicut Vulcanizing agente sunt bona gerunt resistentia, princeps virtutis et duritiem. Peroxide Vulcanizing agente ad Diisopropylbenzene peroxide (DCP) est maxime commune, alii varietates sunt Tert-BUTYL isopropylbenzene peroxide, dibenzoyl peroxide et aliam Dialides, Vulcanization temperatus ad 140-150℃oportet.
Cum Peroxide Vulcanizing agente et isocyanate sicut Vulcanizing agente comparari ad compositum, pristini potest valde reducere mane Vulcanization, protrahunt repono tempore in compositis, in Vulcanizing Flexu, leviter et temperatus resistentia est, quod non potest esse, quod temperatus est, quod incommodo, quod non potest, quod non est quodammodo vulcanizing, quod non potest esse, quod iniecerunt, quod est aucupibus, quod est quodammodo, quod est quodammet pauper, odor; Cum structuram de polyurethane compositis habet unsaturated torquem segments, sulphur Vulcanization potest esse.
Stabilientem ratio agente
Ut ne ad senescit Polyurethane Flexilis, Prosperare ministerium vitae productum, potest ad addere calor stabililer, lux stabililizer, hydrolysis stabilitor, anti-agente et flamma retardant et alias componit.
I calor stabililizer
General Polyurethane Flexilis calor repugnant oxidatio perficientur non ipsum bonum, facile oxidatio et color sub calor, afficiens specie et perficientur medium et uber productio est communiter, ut additives, II, sic antioxidants in Polyurethane, IV-Methyl phenol, et uber productio est communiter, ut additives, II, sic antioxidants in Polyurethane-IV-Methyl phenol, ita antioxidants in Polyurethane, IV-Methyl phenol (-264-III, III, Pentaerythritol (V-Di-Tert, ButylphyryponPropionate) (Antioxidant -1010), Octadyll III, V-Di-Tert-Butyl-IV-HydroxyLPRopopropionate (tpp -1076), trinonyl phosphite (TNP), trinonylphean phosphite (TNP), trinonylpheyl (TNP), Trinonylich
II lux stabililizer
Quoque notus ut ultraviolet absorbent, quod potest significantly amplio photostability of aromaticum isocyanate polyurethane. Communiter Lux stabilizers includit Benzophenone, Benzotriazole et Piperidine, ut II-hydroxy-IV-IV-methoxybenzophophenone (UV-IX), 2,2, -dihydroxy, IV-IV -DI -Dyly, -5-chlorobenzotriazole (UV-CCCXXVIII), bis (II, II, VI, VI-Tetramethylperidine) Sebacate, etc.
III hydrolysis stabililizer
Cum polyester polyurethane rubber adhibetur in umida environment, praesertim calida aqua, hydrolysis stabilitor est addidit. Et hydrolysis stabilizer late in industria est carbonized Diimide componit. Produci per Germania Rhein eget Plant Carbonized Diimide (PCD) habet duo gradus: Stabaxol-I (una carbonized Diimide) et Stabaxol-P (Polycarbonized Diimide), quod pristini 40-50 Missam, liquefactum 40-50℃, Maxime in statu polyester liquida polymer, ut effundens genus polyurethane, polyurethane coatings; Hoc est altior molecular pondus et in thermoplastic et mixta polyurethane elastomers.
IV anti-fingunt agente
Polyether Polyurethane Elastomer habet fortis anti-fingunt facultatem, 0-1 gradu plerumque a microbiales exesa non crescere; Et polyester type et polyε-Caprolactone Type Polyurethane Flexilis sunt susceptibilis ad microbial exesa et rubigo in calidum et humidum et obscura environment, praesertim polyε-Caprolactone Type Polyurethane rubigo rubigo est gravi, ita necesse est addere auruginee praeventionis agente. Communiter solebant Animildew agentibus sunt VIII-hydroxyquinol, VIII-hydroxyquinolone, pentachlorophenol, sodium pentachlorophenol, tetrachloro4 - (Butyl, duplici (Tri-N-Butyl tin) Oxide, Phenylmercuric acetate, etc. 0.1% -1%. Selectio a lepra inhibitor debet accipere propter rubigo effectum et humilis toxicity ad humanum corpus et environmental pollutio et alias, cum VIII-hydroxyquinolone ut per exemplum, addere 0,2% in corporalis et mechanica proprietatibus ad humanum corpus et mechanica (LD50 = 500-16000MG / kg), sed est coloration.
V Flamma retardant
Et flamma retardant gradu materiae est plerumque metiri per oxygeni Index: Oxygeni Index> XXXVIII enim prima flamma retardant materiae et> XXV ad secundarium flammae retardant materiae. In oxygeni index of commune polyurethane elastica materia est 19-20, quod pertinet ad combustible materia. Cum Polyurethane adhibetur in supellectilem, constructione, automobiles, perspicuam materiae, oportet obviam flamma retardant signa supra genus II. Ideo, flamma retardant est late in polyurethane products et maxima dosis complexu, ratio circiter 1/3 de totalis moles polyurethane componit. Flamma retardant est divisa in inorganicis et organicum duo genera, inorganicis flamma retardant frequenter continet aluminium, boron, cadmiae, alumina et alias, ut aluminium hydroxide, alumina, et sic in Flammam, quod est solidum, non producit, quod est solidae Densitas ad mensuram translationem, miscentes apparatu posuit deinceps superioris requisitis, uti non convenient.
Variis chemical auxiliares ludere an maximus munus in agro denique oeconomiae. Licet moles non est magna, sunt plures varietates, late usibus et excelsum addit valorem. Multi societates ad domi et foris sunt committitur ad developing novus auxilia, praesertim munus auxilia. Polyurethane est an emerging sunrise industriam, comprehensive perficientur est optimum, in scope application is expanding.
Qingdao Yinhepay nova materiae est committitur ad progressionem et productionem professionalem polymer additives, ut antioxidants, UV absorbent, lux stabilitor, flamma retardant, amplis Engineering Engineering lateque de Anglis Engineering plastics.
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Post tempus: Apr-12-2023