Ngo-2025, imboni yokumboza ikhula ngesivinini ibheke ezinhlosweni ezimbaxambili "zokuguqulwa kokuluhlaza" kanye "nokuthuthukiswa kokusebenza." Ezindaweni zokumboza ezisezingeni eliphezulu njengezimoto nezokuthutha ezihamba ngesitimela, okokuhamba emanzini kushintshile kusuka “ezinye izinketho” kuya “kokukhetha okujwayelekile” ngenxa yokukhishwa kwazo okuphansi kwe-VOC, ukuphepha, kanye nokungewona ubuthi. Kodwa-ke, ukuze kuhlangatshezwane nezidingo zezimo ezicindezelayo zokufaka isicelo (isb., umswakamo ophezulu kanye nokugqwala okuqinile) kanye nezidingo eziphakeme zabasebenzisi zokuqina nokusebenza okuqinile, ukuthuthuka kwezobuchwepheshe ezimbotsheni ze-waterborne polyurethane (WPU) kuyaqhubeka. Ngo-2025, ukuthuthukiswa kwemboni ekusetshenzisweni kwefomula, ukuguqulwa kwamakhemikhali, kanye nokwakheka kokusebenza kufake ubungqabavu obusha kulo mkhakha.
Ukujulisa Uhlelo Oluyisisekelo: Kusuka “Ku-Ratio Tuning” kuya “Kubhalansi Yokusebenza”
"Njengomholi wokusebenza" phakathi kwezingubo zamanje zamanzi, izingxenye ezimbili ze-polyurethane yamanzi (WB 2K-PUR) zibhekene nenselele eyinhloko: ukulinganisa isilinganiso nokusebenza kwezinhlelo ze-polyol. Kulo nyaka, amaqembu ocwaningo enze ukuhlola okujulile emiphumeleni ye-synergistic ye-polyether polyol (PTMEG) ne-polyester polyol (P1012).
Ngokwesiko, i-polyester polyol ithuthukisa ukunamathela amandla emishini kanye nokuminyana ngenxa yamabhondi e-hydrogen aminyene, kodwa ukwengeza ngokweqile kunciphisa ukumelana namanzi ngenxa ye-hydrophilicity eqinile yamaqembu e-ester. Ukuhlolwa kuqinisekisiwe ukuthi uma i-P1012 ibala u-40% (g/g) wesistimu ye-polyol, "ibhalansi yegolide" ifinyelelwa: amabhondi e-hydrogen akhuphula ukuminyana kwe-crosslink ngokomzimba ngaphandle kwe-hydrophilicity eyeqile, okuthuthukisa ukusebenza okubanzi kwe-coating-okuhlanganisa ukumelana nosawoti isifutho, ukumelana namanzi, namandla aqinile. Lesi siphetho sinikeza isiqondiso esicacile se-WB 2K-PUR yedizayini yefomula eyisisekelo, ikakhulukazi ezimeni ezifana ne-chassis yezimoto nezingxenye zensimbi zesitimela ezidinga kokubili ukusebenza komshini kanye nokumelana nokugqwala.
"Ukuhlanganisa Ukuqina Nokuguquguquka": Ukuguqulwa Kwekhemikhali Kuvula Imingcele Emisha Yokusebenza
Nakuba ukulungiselelwa kwesilinganiso okuyisisekelo “kuwukulungisa okuhle,” ukuguqulwa kwamakhemikhali kumelela “ukweqa kwekhwalithi” ku-polyurethane etholakala emanzini. Izindlela ezimbili zokuguqula zigqame kulo nyaka:
Umzila 1: Ukuthuthukiswa Kwe-Synergistic Nge-Polysiloxane kanye Ne-Terpene Derivatives
Inhlanganisela ye-low-surface-energy polysiloxane (PMMS) kanye ne-hydrophobic terpene derivatives inika i-WPU izici ezimbili ze-“superhydrophobicity + high rigidity.” Abacwaningi balungise i-hydroxyl-terminated polysiloxane (PMMS) besebenzisa i-3-mercaptopropylmethyldimethoxysilane kanye ne-octamethylcyclotetrasiloxane, base bexhunyelelwa i-isobornyl acrylate (okuphuma ku-camphene esuselwe ku-biomass) kumaketanga aseceleni e-PMMS ngendlela ye-UV-initiated thiol-terIene-based reaction (i-polypene-PMMS)
I-WPU eguquliwe ibonise ukuthuthukiswa okumangalisayo: i-engeli yokuxhumana yamanzi emile yeqa isuka ku-70.7° yaya ku-101.2° (isondela ku-lotus-like superhydrophobicity), ukumuncwa kwamanzi kwehle kusuka ku-16.0% kuya ku-6.9%, namandla aqinile akhuphuka esuka ku-4.70MPa aya ku-8.82MP ngesakhiwo seringithoni. Ukuhlaziywa kwe-Thermogravimetric kuphinde kwembula ukuzinza okushisayo okuthuthukisiwe. Lobu buchwepheshe buhlinzeka ngesixazululo esididiyelwe "sokunqanda ukungcoliswa + kwesimo sezulu" sezingxenye zangaphandle zokuhamba kukaloliwe njengamaphaneli ophahleni neziketi eziseceleni.
Indlela yesi-2: I-Polyimine Crosslinking Ivumela Ubuchwepheshe "Ukuziphilisa".
Ukuziphilisa sekuvele njengobuchwepheshe obudumile ekugqokeni izingubo, futhi ucwaningo lwalo nyaka luhlanganise nokusebenza kwemishini kwe-WPU ukuze kuzuzwe impumelelo ekabili “ekusebenzeni okuphezulu + nekhono lokuziphilisa.” I-crosslinked WPU elungiselelwe nge-polybutylene glycol (PTMG), isophorone diisocyanate (IPDI), kanye ne-polyimine (PEI) njenge-crosslinker ibonise izakhiwo ezihlaba umxhwele zemishini: amandla aqinile we-17.12MPa kanye nokwelulwa ngesikhathi sekhefu angu-512.25% (eduze nokuguquguquka kwerabha).
Okubaluleke kakhulu, ifinyelela ukuzelapha okuphelele emahoreni angama-24 ku-30 ° C-ibuyela ku-3.26MPa amandla we-tensile kanye no-450.94% we-elongation ngemva kokulungiswa. Lokhu kuyenza ifaneleke kakhulu izingxenye ezijwayele ukuklwebheka njengobhampa bezimoto nangaphakathi kwezokuthutha ngojantshi, kwehlisa kakhulu izindleko zokulungisa.
"I-Nanoscale Intelligent Control": "I-Surface Revolution" ye-Anti-Fouling Coatings
I-Anti-graffiti kanye nokuhlanza kalula kuyizidingo ezibalulekile zokugqoka okuphezulu. Kulo nyaka, i-fouling-resistant (NP-GLIDE) esekelwe "kuma-nanopools we-PDMS afana noketshezi" idonse ukunaka. Umgomo wayo oyinhloko uhlanganisa ukuxhunyelelwa amaketango e-polydimethylsiloxane (PDMS) aseceleni kumgogodla we-polyol ohlakazeka emanzini nge-graft copolymer polyol-g-PDMS, okwenza “ama-nanopools” amancane kuno-30nm ububanzi.
Ukunothiswa kwe-PDMS kulawa ma-nanopools kunikeza ukumbozwa indawo “efana noketshezi”—zonke uketshezi oluhlolayo olunokungezwani kwendawo ngaphezu kuka-23mN/m (isb., ikhofi, amabala kawoyela) ziyashelela ngaphandle kokushiya amamaki. Naphezu kokuqina kwe-3H (eduze kwengilazi evamile), ukunamathela kugcina ukusebenza okuhle kakhulu kokulwa nokungcoliswa.
Ukwengeza, isu le-anti-graffiti "lesithiyo somzimba + ukuhlanza okuncane" kwahlongozwa: ukwethulwa kwe-IPDI trimer ku-HDT-based polyisocyanate ukuze kuthuthukiswe ukuminyana kwefilimu nokuvimbela ukungena kwegraffiti, kuyilapho kulawulwa ukufuduka kwezingxenye ze-silicone/fluorine ukuze kuqinisekiswe amandla ahlala isikhathi eside aphansi. Kuhlanganiswe ne-DMA (I-Dynamic Mechanical Analysis) yokulawula ukuminyana kwe-crosslink okunembile kanye ne-XPS (i-X-ray Photoelectron Spectroscopy) ukuze kucaciswe ukufuduka kwesixhumi esibonakalayo, lobu buchwepheshe bulungele ukwenziwa yizimboni futhi kulindeleke ukuthi bube uphawu olusha lokulwa nokungcoliswa kupende wezimoto kanye namakesi omkhiqizo angu-3C.
Isiphetho
Ngo-2025, ubuchwepheshe bokuhlanganisa i-WPU busuka “ekuthuthukisweni kokusebenza okukodwa” kuye “kokuhlanganiswa kwemisebenzi eminingi.” Kungakhathaliseki ukuthi ngokulungiselela ifomula eyisisekelo, impumelelo yokuguqulwa kwamakhemikhali, noma ukusungulwa kwemiklamo emisha, ingqondo eyinhloko izungeza ekuhlanganiseni "ubungani bemvelo" kanye "nokusebenza okuphezulu." Ezimbonini ezifana nezokuthutha ngezimoto nezokuthutha ngololiwe, le ntuthuko yezobuchwepheshe ayigcini nje ngokunweba ubude besikhathi sokumboza futhi yehlise izindleko zokulungisa kodwa futhi iqhubekisela phambili ukuthuthukiswa okukabili “kokukhiqiza okuluhlaza” kanye “nokuhlangenwe nakho komsebenzisi okusezingeni eliphezulu.”
Isikhathi sokuthumela: Nov-14-2025