Mumakemikari epolymer, mapolyol akakosha anoshanda semabhuroko akakosha ekuvaka. Mapoka ehydroxyl anoita zvinoenderana nemaisocyanates kuti agadzire hukama hwakasimba hweurethane. MOFAN inogadzira technical polyether series uye superior polyethylene glycols (PEG) yemasisitimu emaindasitiri. Mainjiniya emakemikari anoshandisa zvikamu izvi mu rigid insulation, flexible foam, uye polyurethane elastomers.

Kukura uku kunoratidza kukura kwehupfumi hwema polyols muindasitiri yekugadzira zvinhu.

Zvinhu Zvinokosha Zvaunofanira Kuziva

• Ma polyols akakoshagadzira urethane link dzakasimba ne isocyanates kugadzira polyurethanes dzinoshanda zvakanaka.
• Polyether polyols dzinoramba kukuvara kwemvura zviri nani pane polyester polyols munzvimbo dzakanyorova.
• Mapolyol ane mashandiro akakwirira anowedzera huwandu hwe crosslink kuti awedzere kuomarara kwezvinhu uye kuramba kupisa.
• Ma diol ane huremu hwakawanda anoderedza huwandu hweurethane kuti zvivhariso zvirambe zvichichinjika pakupisa kusingasviki zero.
• Ma polyol anonhuhwirira anopa simba rakasimba rekudzivirira kupisa uye risingaperi murazvo wemapaneru ekudzivirira kupisa akaomarara.
• Polyethylene glycols yakachena inopa mafuta ekuzora uye inochengetedza static muindasitiri dzakasiyana siyana dzekugadzirisa.
• Kuderera kwepotassium muzvinhu zvakagadzirwa kunodzivirira kusawirirana kwemakemikari panguva yekugadzirwa kwefekitori.

Kunzwisisa Special Polyols muIndasitiri Chemistry

Maumbirwo emakemikari ePolyether nePEG Polymers

Dhizaini yemakemikari epolymermapolyol akakoshakuvaka zvinhu zvinovimbika uye zvinogara kwenguva refu. Magadzirirwo emamorekuru anovimba nekudzokorora kubatana kwe ether kunopa kutsungirira kwe flexural uye simba rinoshanduka. Kugadzira zvinotanga ne cyclic ethers kunogadzira cheni dzakasiyana-siyana dzakagadzirirwa maindasitiri.

Kusarudza pakati pepolyether polyols nepolyester polyols kunochinja zvakanyanya kuramba kwemusana. Zvimiro zvepolyether zvinodzivirira zvakanyanya kupwanyika kwehydrolytic munzvimbo dzine hunyoro. Kusiyana neizvi, kubatana kwe ester mupolyester polyols kunopa kuramba kwakanyanya kwekukwesha. MOFAN inopa mapolyols anoshanda zvakanaka anoenzanisa kutsungirira kwemakemikari nemaitiro chaiwo ekugadzirisa.

Basa rePolyols muPolyurethane Systems

Kugadzirwa kwepolyurethane inoshanda zvakanyanya kunoenderana nekuwedzerwa kwe stoichiometric kwemapoka anoshanda ehydroxyl kune ma reactive functional compounds. Kuitika kwekutanga kunoitika kana boka re terminal hydroxyl rikasangana ne isocyanate molecule. Danho iri rinoumba kubatana kwakasimba kweurethane pamwe chete ne polymer chain iri kukura.

boka rehydroxyl + isocyanate -> urethane linkage

Maformulator anosanganisa mapolyol akasiyana nemarudzi chaiwo eisocyanate kudzora huwandu hwefuro, kuomarara kwepolymer, uye kuramba kupisa. Misanganiswa ye liquid resin inoda mwero wekuita kwe kinetic wakaenzana kudzivirira kupararira kwejell panguva yekugadzirisa. Kuwedzera zvimwe zvinosanganisa crosslinking kunokurumidza kuronga nguva yekuporesa uye kunovandudza kusimba kwekupedzisira. MOFAN inopa mamakisi ehunyanzvi akasarudzika anovimbisa kugadziriswa kwakafanana pamichina yekugadzira otomatiki.

Kupatsanurwa Kwebasa Nehuremu HweMorekuru uye Nhamba yeHydroxyl

Hydroxyl values ​​inotungamira crosslinking density uye physical properties ye cried thermoset networks. Zvimwe zvinowedzerwa zvemamorekuru zvine ma hydroxyl numbers akakwira, zvichigadzira zvidimbu zve polymer zvakasimba zvine tight crosslink densities. Ma diols ane mamorekuru akawanda ane ma hydroxyl numbers akaderera, zvichiita kuti zvikamu zvakapfava zve elastomeric zvikwanise kushandiswa sealants.

Kusarudza nhamba dzakakodzera dzehydroxyl kunobvumira mainjiniya kugadzirisa kuchinjika kwemuchina uye maitiro ekudhonza nemazvo. Huremu hwakawanda hwemamorekuru hunoderedza huwandu hwese hweboka reurethane mukati me matrix. Huremu hwakaderera hwemamorekuru hunowedzera huwandu hwakaoma hwechikamu, zvichiwedzera kuramba kupisa uye kugona kudzvanya mutoro. MOFAN inogadzira ma polyol ehunyanzvi muhukuru hwakakura hwemamorekuru kuti isangane nezvinodiwa zvekugadzira maindasitiri.

Mhando Dzakakosha uye Hunhu Hwemuviri hwePolyether Formulations

Ma polyol akakosha anopa maitiro ekugadzirisa akagadzirirwa iwe uye hupenyu hwebasa hunogara kwenguva refu mumashandisirwo emakemikari emaindasitiri.Polyether polyolsine ma "oxygen linkages" muma "molecular chains". Aya ma "ether bonds" anopa kugadzikana kwakanaka kwe "hydrolytic" munzvimbo dzakanyorova. Mainjiniya emakemikari anowanzo enzanisa masisitimu aya ne "polyester polyols". Kunyange zvazvo ma "polyester polyols" achipa kusimba kwakasimba kwemuviri, ma "polyester polyols" haana kugadzikana kwakaenzana kwe "hydrolytic". Ma "polyester polyols" anoora nekukurumidza kana akaiswa muhunyoro hunogara huripo. MOFAN inogadzira mafomura akakosha ekudzivirira zvikamu zvinoshanduka kubva mukuora kwemvura uye kusangana nemakemikari kwakaoma.

Mashandiro Akakwirira eCrosslinkers uye Structural Diols

Maumbirwo epolymer anoenderana nekugadzirwa kwemamorekuru ekutanga kuti awane hunhu hwakasiyana hwemakanika. Ma "crosslinkers" anoshanda zvakanyanya anovaka network dzakakora dzine mativi matatu, nepo ma "structural diols" achiumba cheni dzakatambanudzwa dzepolymer.

Zvinowedzera Kubatana uye Simba reMichina

Ma "crosslinkers" anoshanda zvakanyanya anowedzera huwandu hwenzvimbo dzinoshanda dzehydroxyl pamorekuru imwe neimwe. Kushanda kwehydroxyl pakati pe2.0 ne4.0 kunowedzera huwandu hwe "crosslink density" panguva ye "polymerization". Kuwanda kwe "crosslink density" kunowedzera zvakananga simba rekubatana, kuomarara kwemuviri, uye hunhu hwese hwemakanika. MOFAN inopa PF-040, PF-450, uye PF-1050 kuti iwedzere kubatana kwe "matrix". Izvi zvinowedzera zvinowedzera kudzivirira kupisa muma "glues" ane zvikamu zviviri, ma "structural castings", uye ma "protective floor coating".

MaDiols Ekukwirira Akakwirira eMasisitimu Ekudzikira KweModulus

Kushandiswa kwemamodulus akaderera kunoda mapolymers akatsetseka ane huremu hwakawanda hwemamorekuru. Madiols ane huremu hwakawanda seMOFAN PF-2080 nePF-2120 anopa kuchinjika kunoshamisa uye kureba kwakanyanya. Aya madiols echimiro anoderedza huwandu hwese hweurethane pamusana wepolymer. Kuverengwa kwemapoka eurethane akaderera kunoburitsa zvikamu zvakapfava zvinochengetedza kuchinjika kwakaderera kusvika -60°C. Maformulators anoshandisa aya madiols akatsetseka kugadzira majoint sealants uye dynamic polyurethane elastomers.

Magiredhi Ekuvhara Masero, Anorarama Nemvura, uye Anoita Zvekuita Nesimba Repamusoro

Magiredhi ekuwedzera emhando yepamusoro anogadzirisa maumbirwo emukati memasero efoam uye kinetics yemhinduro yepamusoro. Kushanda, hydroxyl values, uye viscosity zvinoshanda sezviyero zvikuru zvekuisa mumapoka aya mapolyols akasarudzika.

Chikamu chekuvhura masero PF-3500 chinodzivirira kupwanyika kwemhepo mumafuro anochinjika zvishoma. Chikamu chinonyungudutsa chePF-010 chine mapoka anoshanda ehydroxyl anogadzira zvakanaka mumahydrogel anoputika nemvura. Chikamu chinonyungudutsa chePF-2802 chinowedzera simba rekubvaruka mumapasi eshangu akaumbwa. Aya mapolyols akakosha anochengetedza hunhu hwakagadzikana hwemuviri panguva yekugadzira nekukurumidza.

Polyols dzinonhuhwirira uye Novolac dzinodzivirira moto

Kudzivirira kupisa kwakasimba kunoda kukurumidza kugadziriswa, simba rakasimba rechimiro, uye kutsungirira kwakasimba kwemoto. Mapolyol anonhuhwirira uye anovhenganiswa nezvinovolac anosanganisira mhete dzinonhuhwirira muketani huru yepolymer. Zvigadzirwa zvakaita seMOFAN PF-800, PF-1380, uye PF-585 zvinopa kushanda kwakanaka kwekupisa zvichienzaniswa nemapolyol akajairwa.

Mapolyol anonhuhwirira anoita zvinobudirira nemapoka anoshanda e-isocyanate panguva yekugadzirisa furo rekupfapfaidza. Network yepolymer inoburitsa zvivakwa zvepolyphenolic zvinodzivirira pakupisa kwakakwira. Mhinduro iyi yemakemikari inoumba layer yekudzivirira panguva yekupisa. Mabhondi akasimba ecarbon-carbon anopa kudzivirira kupisa, kudzivirira makemikari zvakanyanya, uye kunonoka kwemoto zvakanyanya. Mashandisirwo emaindasitiri anotsigira aya mabhuroko ekuvaka anonhuhwirira emadziro ekudzivirira akakombama, mabhodhi epolyisocyanurate, uye dense polyurethane elastomers. Zvinhu zvekupedzisira zvinopa hupenyu hurefu hwebasa, rutsigiro rwakavimbika rwechimiro, uye kuramba makemikari nguva dzose munzvimbo dzine hukasha dzemaindasitiri.

Polyethylene Glycols Yepamusoro Mukugadzirisa Maindasitiri

Pfupiso yeMOFAN PEG Product Series

Polyethylene glycolsinoshanda semapolymers asiri e-ionic anoshanduka-shanduka mumaindasitiri akasiyana-siyana ekugadzirisa. MOFAN inopa nhevedzano yakazara yePolyethylene Glycols yepamusoro kubva kuPEG1000 to PEG20000. Zvinhu izvi zvine ma polyether ane ma terminal hydroxyl groups. Vagadziri vanoshandisa zvigadzirwa izvi se antistatic agents, ma industrial lubricants, releasing agents, uye raw material intermediates. Maitiro emakemikari anovimba nemacheni aya akavimbika kudzora kuchengetedza hunyoro uye mafuta muzvigadzirwa zvakapedzwa.

Magadzirirwo emaindasitiri anosarudza magiredhi chaiwo epolyglycol zvichienderana nehurefu hwecheni hunodiwa uye hunhu hwekushanda. Maindasitiri emachira, mapepa, simbi, rabha, uye mishonga anoshandisa macompound aya epolyether kuvandudza mashandiro ekugadzira. Magiredhi ehuremu hwakaderera anopa kusimba kwakanaka uye kunyorovesa. Magiredhi ehuremu hwakakwira anopa viscosity yakanyanya yemuviri uye kugona kwakasimba kwekubatanidza. MOFAN inogadzirisa giredhi rega rega remakemikari kuti rienderane nezvinodiwa zvemuviri pamichina yekugadzira otomatiki.

Mitemo yeKuchena uye Kudzora Potassium

Kugadzirwa kwemakemikari kunoda kuchena kwakasimba kwezvinhu zvakabikwa kuti zvive nechokwadi chekuti zvinodzokororwa. Zvisaririra zve trace catalyst zvisina kufanira zvakaita se potassium ions zvinokanganisa maitiro emakemikari anonzwa. MOFAN inodzora huwandu hwe potassium yasara panguva yekugadzira polycondensation. Kudzora huwandu hwe trace metal kunodzivirira maitiro asingadiwe panguva yekugadzira polyurethane polymer. Kusvibiswa kushoma kwe ionic kunochengetedza viscosity yemvura yakasimba panguva yekuchengetwa.

Magiredhi ehunyanzvi akachena kwazvo anoderedza zvikanganiso zvechimiro mumafomura ekupedzisira ekushandisa. Maitiro ekusimbisa hutsanana anoedza boka rega rega rezvigadzirwa kuti asimbise kuumbwa kwemakemikari uye kuchengetedza mwero wakasimba wehunhu. Sarudzo dzegiredhi reUSP/NF dzinosangana neUnited States Pharmacopeia monograph specifications yezvigadzirwa zvekurapa zvine hunyoro. Magwaro akazara ekutevedzera mitemo anoperekedza mamagiredhi emishonga kuti ape kurongeka kwakazara kwebatch. Kuwanikwa kweUSP/NF, Food (E1521), uye mamagiredhi ehunyanzvi kunoita kuti mainjiniya asarudze mwero wakakodzera wekuchena kuti awane zvinodiwa chaizvo pakushandisa.

Mafomu Emuviri Kubva Pamvura Kuenda Kuhupfu

Huremu hwemamorekuru epolyglycol hunosarudza mamiriro ayo chaiwo patembiricha yemumba. Macheni mapfupi epolymer anoramba ari emvura, nepo macheni marefu achioma kuita zvinhu zvakaita sewakisi kana hupfu.

Vagadziri vemafuta vanosarudza mafomu chaiwo kuti vagadzirise nzira dzekugadzira. Upfu hwakakuyiwa hunoyerera zvakasununguka kuburikidza nemahopper anosanganisa otomatiki akaoma. Mafomu emvura anosanganiswa pakarepo munzizi dzemakemikari emvura pasina kupisa. Mapaste akaomarara anopa magadzirirwo akapfava emafuta mukugadzirwa kwemishonga. MOFAN inopa mafomu chaiwo akafanana kuti zvive nyore kusanganisa makemikari emuindasitiri.

Mashandisirwo ePolyether nePEG Systems mumaindasitiri

Zvinonamira zvePolyurethane, Zvinovhara, uye Zvokuputira

Sarudza maformulapolyols dzakagadzirwakugadzira maglues anoshanda zvakanyanya, ma sealant, ma coatings ekudzivirira, uye ma structural castings. Muma CASE systems, ma polyols anoshanda zvakasiyana uye matatu anovaka network dzinochinjika dzine maitiro ekugadzirisa anofungidzirwa. Ma formulators anowanzo tsanangura ma polyether diol uye ma triol polyols ane huremu hwemamorekuru kubva pa1000 kusvika 3000 e elastic non-foam polyurethane materials. Aya ma active building blocks anoumba dynamic urethane bonds dzinochengetedza simba pasi pekumanikidzwa kwe mechanical.

Mapolyol epolyether ane source imwe chete anopa kugadzikana kwepamusoro-soro kwehydrolytic zvichienzaniswa nepolyester chemistry munzvimbo dzakanyorova dzekugadzirisa. Magiredhi epolyether emvura anochengetedza kuchinjika patembiricha iri pasi pezero nekuti ane tembiricha yakaderera yekuchinja kwegirazi. Semuenzaniso, magiredhi epolypropylene glycol anoratidza kukosha kwekuchinja kwegirazi pedyo ne -60°C. Poly(tetramethylene ether) glycol inopa tembiricha yekuchinja kwegirazi kusvika -75°C. Izvi zvinodzivirira kuputika kwepamberi penguva muzvivharo zvekunze. Mapurasitiki epasi eindasitiri anoshandisa mapolyol ane mashandiro epamusoro kuwedzera huwandu hwe crosslink. Kubatanidza kwakakwirira kunogadzira nzvimbo dzakasimba dzinodzivisa kudonha kwemakemikari uye kukwesha kwemuchina. Pamusoro pezvo, maglue ane zvikamu zviviri anotsigira maresini ane viscosity yakaderera kuti anyorovese pamusoro nekukurumidza. Aya masisitimu e reactive anoumba resilient urethane linkages anobatanidza simbi, mapurasitiki, uye structural composites zvakachengeteka. Ma polyurethane elastomers akasarudzika anopa kusimba kwakanyanya kwe rebound mumavhiri eindasitiri akaumbwa uye pasi peshangu dze microcellular. Uyezve, maformulations akagadzirwa e polyurethane elastomers anopa kusimba kwakanyanya kwekubvaruka pasi pemitoro inorema.

Mafuro Anochinjika, Anotsungirira Zvakanyanya, uye Akasimba

Kugadzira furo kunoenderana nekushanda kwehydroxyl nehurefu hwecheni zvichienderana nezvinodiwa zvehunyanzvi. Kugadzirwa kwefuro re soft slabstock kunoshandisa ma polyol ane cheni refu ane kushanda kushoma pakati pe2 ne3. Ma formulators anosarudza ma polyol akasarudzika ane huremu hwemamorekuru kubva pa2000 kusvika 7000 kuti agadzire maumbirwo emasero anochinjika emidziyo yefenicha uye zvigadzirwa zvemubhedha. Ma furo akasimba anobatanidza ma polymers akasarudzika e reactive kuti awedzere kugona kwekutakura mutoro uye kudzoka kwemasero. Mafomuro akapfava uye akanyanya kupfava anoda zvinowedzera zvinovhura masero kuti zvienzanise kumanikidzwa kwemhepo mukati uye kudzivirira kupera kwefuro mushure mekuumbwa. Mashandisirwo emukati memotokari anoshandisa masisitimu anochinjika akagadzirwa kuti agadzire zvigaro zvemotokari zvinogadzikana, nzvimbo dzekurerekera maoko, nzvimbo dzekurerekera musoro, uye nzvimbo dzekurerekera dzinodzivirira ruzha.

Mafuro ekudzivirira kupisa akasimba anoda mazinga akakwira ekubatanidza kuti awane kusimba kwechimiro uye kugadzikana kwezvikamu pasi pemafuta anorema. Maformula anoshandisa mapolyol ane mashandiro ari pamusoro pe3 uye nhamba dzakakwira dzehydroxyl. Kuwanda kwe crosslink density kunogadzira closed-cell structures dzinobata magasi anodzivirira mukati me polymer matrix yakasimba. Aya ma tight cell structures anopa hydrolytic stability kwenguva refu mumamiriro ekunze ekunze. Saizi dzema cell dzakapfava dzinovandudza simba rekumanikidzwa kwemuchina uku dzichichengetedza low thermal conductivity muma commercial insulation panels. Mota dzekutakura dzakachengetwa mufiriji, midziyo yekutengeserana, uye spray insulation zvinoshandisa rigid polyurethane systems kudzivirira kutamiswa kwekupisa. Mapurojekiti ekuvaka anoisa prefab polyisocyanurate panels kuti aderedze kushandiswa kwesimba rekuvaka. Molded rigid foams zvakare anopa mhinduro dzepakeji dzakagadzirirwa michina yemagetsi isina kusimba.

Mashandisirwo ePEG muMicheka, Rabha, uye Mishonga

Mapolymer epolyethylene glycol anoshanda senzira dzakasiyana-siyana dzekugadzirisa zvinhu zvisina ionic mumashandisirwo akasiyana-siyana emaindasitiri. Mhando dzakasiyana dzehuremu hwemamorekuru dzinopa hunhu hwakasiyana mumabasa ekugadzira.

• Kugadziriswa Kwemachira:Mhando dzemvura dzakadai sePEG-200 dzinoshanda sezvinhu zvinopfavisa uye zvinodzivisa kutonhora. Mhando dzepakati dzakadai sePEG-400, 600, uye 800 dzinoshanda semafuta anonyorovesa uye zvinhu zvinonyorovesa panguva yekupedza fiber. Mhando dzakakwirira dzehuremu hwemamorekuru dzakadai sePEG-4000 dzinoshanda sezvinhu zvinonamira zvepurasitiki uye zvinonyorovesa.
• Kugadzira Rabha:PEG-1000 na1500 zvinoshanda sezvinhu zvinoparadzira zvinokurudzira kupararira kwevhu uye kupararira kwekabhoni dema. Magiredhi akaoma akadai sePEG-4000 na8000 anoshanda sezvinhu zvinoburitsa mold, mafuta, uye zvinotonhodza.
• Mishonga Yekurapa:Mapolyol anonyungudika mumvura anoshanda sezvinhu zvinosanganisa mishonga uye zvinhu zvinoshanda mumishonga yekurapa. Zvinhu izvi zvakacheneswa zvinowedzera kunyungudika kwemishonga, kushanda zvakanaka kwemushonga, uye kushanda zvakanaka kwemushonga mukushandiswa kwemishonga inonwiwa uye inotorwa nemaoko.

Maitiro ekugadzira simbi mumaindasitiri anoshandisa polyethylene glycols pakutonhodza, kuisa mafuta, uye kutamisa kupisa. Vagadziri vemapepa vanoshandisa mhinduro dzepolyglycol kudzora kuchengetedza hunyoro uye kuvandudza kutsetseka kwepamusoro. Izvi zvinowedzera zvinoshanda zvinopa kugadzikana kwemakemikari mumabhati ekugadzirisa ane acidic nealkaline. Mabasa emazuva ano emaindasitiri anosarudza huremu hwepolymer hwakasiyana kuti awedzere kumhanya kwekugadzirisa uye kunaka kwechigadzirwa.

Maitiro Ekusarudza MOFAN Special Polyols

Kuenzanisa Hunhu hweHydroxyl neMashandiro Azvo neZvinodiwa paKushandisa

Kusarudzwa kwepolyol kunoshanda kunoda kuenderana kwenhamba dzehydroxyl uye mashandiro ayo kuti zvienderane nematanho emuviri. Kushanda kunosarudza chimiro chekubatanidza network yakagwinya. Maitiro ehydroxyl anotsanangura huwandu hwenzvimbo inoshanda yehydroxyl pachikamu chimwe nechimwe. Maitiro ehydroxyl akaderera ane mashandiro ari pakati pe2 ne3 anogadzira network dzinochinjika. Maitiro ehydroxyl akakwira ane mashandiro ari pakati pe4 ne8 anoumba tight thermoset structures. Maformulators anoongorora zviyero izvi kuti aenzane nemagetsi ekupedzisira. Semuenzaniso, polyether polyol ine hydroxyl kukosha kwe150 mg KOH/g uye nhamba-average molecular weight ye1200 g/mol inoratidza mashandiro ari pedyo ne3.2. Maformulators anoshandisa giredhi iri chaiyo kugadzira ma semi-rigid foam panels emapaneru emukati memotokari.

Kugadzirisa Viscosity, Reactivity, uye Curing Kinetics

Kubudirira kwekugadzirisa kunoenderana nemafambiro chaiwo ekuyerera kwemvura uye kumhanya kwemvura. Kusarudza ma polyol emvura ane mamorekuru akakodzera kunodzora base viscosity. Ma formulators anowedzera precipitated calcium carbonate pa 20-40 wt.% loading kuti agadzire sag resistance. Pamusoro pezvo, kuwedzera fumed silica pa 2-5 wt.% loading kunoita kuti pave nemaitiro akasimba ethixotropic kudzivirira sagging pa vertical substrates. Kugadzira ma prepolymers ane isocyanate to hydroxyl ratio iri pakati pe1.8:1 na2.5:1 kunobatsira kudzikamisa system viscosity. Kusarudza polyol nekungwarira kunoita kuti dynamic handling iite nyore pa automated dispensing equipment.

Macatalyst eOrganotin akaita seDBTDL pa 0.01-0.1 wt.% anoisa reaction rates. Izvi zvinowedzera zvinokurudzira kuumbwa kweurethane kuti pave nechinhu chisina kubatwa mukati memaminitsi makumi matatu kusvika makumi mapfumbamwe. Macatalyst eTertiary amine anoita kuti ganda rikurumidze kuporesa mu polyurethane systems. Kuenzanisa macatalyst anoshanda nema polyols anoshanda zvakanaka kunodzivirira kuumbwa kwevasina chinhu muzvikamu zvakaumbwa zvakakora.

Kuvandudza Kugadzikana kweThermal uye Kuramba Kwezvakatipoteredza

Kusarudzwa kwemapfupa emusana kunodzora kugadzikana kwehydrolytic uye kuramba kwenguva refu kwemakemikari. Polyether polyols inochengetedza kugadzikana kwakanaka kwehydrolytic, inogara kwemaawa anopfuura 2000 pa95% hunyoro uye 70°C pasina kurasikirwa kwakakosha kwepfuma. Kusiyana neizvi, polyester polyols inoderera nekukurumidza kana iri muhunyoro hwakawanda nekuti hunyoro hunorwisa ester linkages. Kusarudza dzimwe polyols panzvimbo pepolyester polyols kunovandudza kuramba kwemvura mu polyurethane elastomers. Specialized polyols inopa kuramba kwakanaka kwemakemikari munzvimbo dzinoda maindasitiri. Specialized polybutadiene polyols inochengetedza kupfuura 98.5% mass panguva yekuratidzwa nguva dzose pa100°C kwemaawa 1000, zvichiita kuti elastic modulus variation isasvike 100%.

Mitsetse yemusana inonhuhwirira inopa kusimba kwekupisa kudzivirira kupisa kwakanyanya kubva kumarudzi asina kubatwa e-isocyanate. Sarudzo dzeAliphatic dzinodzivirira kusviba kweruvara rweUV kwakanyanya. Maformula anowedzera ma antioxidants pa 0.5–1.5 wt% kuti awedzere kusimba kwe oxidative kwenguva refu. Kuwedzera UV stabilizers pa 0.5–2.0 wt% kunodzivirira zvinhu zvekunze kubva mukukuvadzwa nemwaranzi yezuva. Kusarudzwa kwakakodzera kwepolyol kunoita kuti mapolyol akasarudzika agadziriswe kuchengetedza hunhu hwakakosha hwepolyurethane pamhando dzakasiyana dzekushandisa kunze.

MOFAN special polyolsuye superior polyethylene glycol series inopa kukosha kukuru muinjiniya yemazuva ano yepolymer. Magadzirirwo chaiwo emamorekuru anobvumira mapolyols kugadzirisa reaction kinetics uye simba re network. Hunhu hwezvinhu zvakagadzirwa hunosimudzira zvakananga mashandiro echigadzirwa muma polyurethane adhesives, structural sealants, dynamic elastomers, uye rigid thermal insulation foams. Maformula anogadzira makemikari anodzivirira zvakanyanya, kugadzikana kwekupisa, uye kugara kwenguva refu kuburikidza ne functional chemistry inodzorwa. Mabasa ekugadzirisa maindasitiri anowana kushanda kwepamusoro kwekugadzira nemhinduro idzi dzemakemikari akachena kwazvo mumitsara yakasiyana-siyana yekugadzirisa. Vatengi vemaindasitiri vanokokwa kuti vabvunze nyanzvi dzehunyanzvi dzeMOFAN kuti vagadzire maformula akagadzirwa, kugadzirisa zvinangwa zvekugadzirisa zvakasimba, uye kugamuchira rutsigiro rwakatsaurirwa kune zvinodiwa zvekugadzira zvakaoma.

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