Mu 2025, makampani opanga zokutira akuthamangira ku zolinga ziwiri za "kusintha kobiriwira" ndi "kukweza magwiridwe antchito." M'magawo okutira apamwamba kwambiri monga magalimoto ndi masitima apamtunda, zokutira zam'madzi zasintha kuchokera ku "njira zina" kupita ku "zisankho zazikulu" chifukwa cha kutsika kwawo kwa VOC, chitetezo, komanso kusakhala ndi poizoni. Komabe, kuti tikwaniritse zofunikira pakugwiritsa ntchito movutikira (mwachitsanzo, chinyezi chambiri ndi dzimbiri zamphamvu) komanso zofunikira za ogwiritsa ntchito kuti zisalimba ndi kugwira ntchito kwake, kupita patsogolo kwaukadaulo mu zokutira za polyurethane (WPU) zikupitilirabe. Mu 2025, zatsopano zamafakitale pakukhathamiritsa kwa ma formula, kusintha kwamankhwala, ndi kapangidwe kantchito zadzetsa nyonga yatsopano mu gawoli.
Kukulitsa Dongosolo Lachiyambi: Kuchokera ku "Ratio Tuning" mpaka "Performance Balance"
Monga "wotsogolera ntchito" pakati pa zokutira zamakono zamadzi, zigawo ziwiri za polyurethane (WB 2K-PUR) zimayang'anizana ndi vuto lalikulu: kulinganiza chiŵerengero ndi machitidwe a polyol. Chaka chino, magulu ofufuza adafufuza mozama zotsatira za polyether polyol (PTMEG) ndi polyester polyol (P1012).
Mwachikhalidwe, poliyesitala polyol kumawonjezera ❖ kuyanika mawotchi mphamvu ndi kachulukidwe chifukwa wandiweyani intermolecular hydrogen zomangira, koma kuonjezera kumachepetsa kukana madzi chifukwa champhamvu hydrophilicity magulu ester. Zoyesera zimatsimikiziridwa kuti pamene P1012 imapanga 40% (g / g) ya polyol system, "golide woyezera" amapindula: ma hydrogen bond amawonjezera kachulukidwe ka crosslink popanda hydrophilicity, kupititsa patsogolo ntchito yonse ya zokutira - kuphatikizapo kukana kupopera mchere, kukana madzi, ndi mphamvu zowonongeka. Mawu omalizawa amapereka malangizo omveka bwino a WB 2K-PUR kamangidwe ka fomula yoyambira, makamaka pazochitika ngati chassis yamagalimoto ndi zitsulo zamagalimoto a njanji zomwe zimafunikira makina komanso kukana dzimbiri.
"Kuphatikiza Kukhazikika ndi Kusinthasintha": Kusintha Kwa Chemical Kumatsegula Malire Atsopano Ogwira Ntchito
Ngakhale kukhathamiritsa koyenera ndi "kusintha kwabwino," kusinthidwa kwa mankhwala kumayimira "kudumpha bwino" kwa polyurethane yamadzi. Njira ziwiri zosinthira zidadziwika chaka chino:
Njira 1: Kupititsa patsogolo kwa Synergistic ndi Polysiloxane ndi Terpene Derivatives
Kuphatikizika kwa low-surface-energy polysiloxane (PMMS) ndi hydrophobic terpene zotumphukira zimapatsa WPU yokhala ndi zinthu ziwiri za "superhydrophobicity + high rigidity." Ofufuza anakonza hydroxyl-terminated polysiloxane (PMMS) pogwiritsa ntchito 3-mercaptopropylmethyldimethoxysilane ndi octamethylcyclotetrasiloxane, kenaka kumezanitsa isobornyl acrylate (yochokera ku biomass-derived camphene) pa unyolo wam'mbali wa PMMS kudzera pa UV-initiated thiol-PMMS-based thiol-terInepene reaction
WPU yosinthidwa idawonetsa kusintha kodabwitsa: ngodya yosasunthika yamadzi idalumphira kuchokera ku 70.7 ° kupita ku 101.2 ° (kuyandikira tsamba la lotus ngati superhydrophobicity), kuyamwa kwamadzi kudatsika kuchokera ku 16.0% mpaka 6.9%, ndipo mphamvu yamanjenje idakwera kuchokera ku 4.70MPa kupita ku 8.82MP chifukwa cha ma ringgid. Kusanthula kwa Thermogravimetric kunawonetsanso kukhazikika kwamafuta. Ukadaulo uwu umapereka njira yophatikizira ya "anti-fouling + yolimbana ndi nyengo" yazigawo zakunja zanjanji monga mapanelo apadenga ndi masiketi am'mbali.
Njira 2: Polyimine Crosslinking Imathandiza "Kudzichiritsa" Technology
Kudzichiritsa nokha kwatulukira ngati ukadaulo wodziwika bwino pakupaka utoto, ndipo kafukufuku wachaka chino adaphatikiza ndi magwiridwe antchito a WPU kuti akwaniritse zopambana ziwiri "zochita bwino kwambiri + zodzichiritsa." Crosslinked WPU yokonzedwa ndi polybutylene glycol (PTMG), isophorone diisocyanate (IPDI), ndi polyimine (PEI) monga crosslinker anasonyeza chidwi makina katundu: kumakoka mphamvu ya 17.12MPa ndi elongation pa yopuma 512.25% (pafupi ndi mphira kusinthasintha).
Chofunika kwambiri, chimakwaniritsa kudzichiritsa kwathunthu mu maola a 24 pa 30 ° C-kubwezeretsanso ku 3.26MPa mphamvu zowonongeka ndi 450.94% elongation pambuyo pokonza. Izi zimapangitsa kuti zikhale zoyenera kwambiri pazigawo zongoyamba kumene ngati ma bumper agalimoto ndi zamkati mwa njanji, kumachepetsa kwambiri mtengo wokonza.
"Nanoscale Intelligent Control": "Surface Revolution" ya Anti-Fouling Coatings
Anti-graffiti ndi kuyeretsa kosavuta ndizofunikira kwambiri pazovala zapamwamba. Chaka chino, zokutira zosagwira ntchito (NP-GLIDE) zochokera ku "PDMS nanopools zamadzimadzi" zidakopa chidwi. Mfundo yake yaikulu imaphatikizapo kulumikiza maunyolo a polydimethylsiloxane (PDMS) pamsana wa polyol wotayika madzi kudzera pa graft copolymer polyol-g-PDMS, kupanga "nanopools" yaying'ono kuposa 30nm m'mimba mwake.
Kuchulukitsa kwa PDMS mu nanopools kumapangitsa kuti zokutira kukhala "ngati madzi" - zakumwa zonse zoyezera zokhala ndi kupsinjika kwa pamwamba pa 23mN/m (mwachitsanzo, khofi, madontho amafuta) zimatsika popanda kusiya zizindikiro. Ngakhale kuuma kwa 3H (pafupi ndi galasi wamba), zokutira zimasunga magwiridwe antchito abwino kwambiri oletsa kuyipitsa.
Kuonjezera apo, njira ya "chotchinga thupi + yoyeretsa pang'onopang'ono" yotsutsana ndi graffiti inaperekedwa: kuyambitsa IPDI trimer mu HDT-based polyisocyanate kuti apititse patsogolo kachulukidwe ka filimu ndi kuteteza graffiti kulowa, pamene akuyang'anira kusamuka kwa zigawo za silicone / fluorine kuti zitsimikizidwe kuti zimakhala zotsika kwambiri pamtunda wautali. Kuphatikizidwa ndi DMA (Dynamic Mechanical Analysis) yowongolera kachulukidwe kachulukidwe ndi XPS (X-ray Photoelectron Spectroscopy) ya mawonekedwe osuntha, ukadaulo uwu ndi wokonzeka kukulitsa mafakitale ndipo akuyembekezeka kukhala chizindikiro chatsopano chotsutsana ndi kuipitsidwa kwa utoto wamagalimoto ndi ma casings a 3C.
Mapeto
Mu 2025, ukadaulo wokutira wa WPU ukuyenda kuchokera pa "kuwongolera kachitidwe kamodzi" kupita ku "kuphatikiza kwamitundu ingapo." Kaya ndi kukhathamiritsa kwa ma formula, kusinthika kwa makemikolo, kapena luso la kamangidwe ka ntchito, mfundo zazikuluzikulu zimayenderana ndi kugwirizanitsa "kukonda chilengedwe" ndi "kuchita bwino." Kwa mafakitale monga magalimoto ndi masitima apamtunda, kupita patsogolo kwaukadaulo kumeneku sikungowonjezera nthawi yotchinga ndikuchepetsa mtengo wokonza komanso kumapangitsanso kukweza kawiri pa "kupanga zobiriwira" komanso "zogwiritsa ntchito kwambiri."
Nthawi yotumiza: Nov-14-2025