Xyoo 2025, kev lag luam txheej txheej nrawm nrawm mus rau ob lub hom phiaj ntawm "kev hloov pauv ntsuab" thiab "kev ua tau zoo dua qub." Hauv high-end txheej txheej xws li tsheb thiab tsheb ciav hlau, cov txheej txheem dej tau hloov zuj zus los ntawm "kev xaiv lwm txoj kev" mus rau "kev xaiv tseem ceeb" ua tsaug rau lawv qhov qis VOC emissions, kev nyab xeeb, thiab tsis muaj tshuaj lom. Txawm li cas los xij, kom ua tau raws li qhov xav tau ntawm cov ntawv thov hnyav (xws li, cov av noo siab thiab muaj zog corrosion) thiab cov neeg siv cov kev xav tau ntau dua rau cov txheej txheem ntev thiab kev ua haujlwm, kev siv thev naus laus zis hauv cov dej hauv polyurethane (WPU) txheej txuas ntxiv mus. Hauv xyoo 2025, kev lag luam kev tsim kho tshiab hauv cov qauv kev ua kom zoo dua qub, kev hloov kho tshuaj lom neeg, thiab kev tsim qauv ua haujlwm tau txhaj tshuaj tshiab tseem ceeb rau hauv qhov haujlwm no.
Txhim kho qhov yooj yim System: Los ntawm "Ratio Tuning" mus rau "Performance Balance"
Raws li "tus thawj coj ua tau zoo" ntawm cov txheej txheem dej tam sim no, ob lub ntsiab lus dej polyurethane (WB 2K-PUR) ntsib qhov kev sib tw tseem ceeb: ntsuas qhov sib piv thiab kev ua haujlwm ntawm cov tshuab polyol. Xyoo no, pab pawg tshawb fawb tau tshawb xyuas qhov tob rau hauv kev sib koom ua ke ntawm polyether polyol (PTMEG) thiab polyester polyol (P1012).
Kev lig kev cai, Polyester Polyol Enting cov txheej txheem lub zog thiab qhov ntau dhau los txo cov dej tsis kam ua rau cov pab pawg hydrophilicity ntawm ester pawg. Kev sim qhia tau tseeb tias thaum P1012 account rau 40% (G / G) ntawm cov txheej txheem ntawm lub cev-suav nrog cov tshuaj tiv thaiv kab mob Qhov kev txiav txim siab no muab cov lus qhia meej rau WB 2K-PUR cov qauv tsim qauv, tshwj xeeb tshaj yog rau cov xwm txheej xws li tsheb chassis thiab tsheb ciav hlau tsheb hlau qhov chaw uas yuav tsum tau muaj ob qho tib si kev ua haujlwm thiab kev tiv thaiv corrosion.
"Combining Rigidity thiab Flexibility": Tshuaj Hloov Kho Kho Kho Kho Tshiab Ua Haujlwm Li Cas
Thaum qhov kev ua tau zoo ntawm qhov piv txwv yog "kev hloov kho kom zoo," kev hloov kho tshuaj sawv cev rau "zoo leap" rau cov dej hauv polyurethane. Ob txoj kev hloov kho tau sawv tawm xyoo no:
Txoj Kev 1: Kev sib koom ua ke nrog Polysiloxane thiab Terpene Derivatives
Kev sib xyaw ua ke ntawm low-deg-zog polysiloxane (PMMS) thiab hydrophobic terpene derivatives endows WPU nrog ob lub zog ntawm "superhydrophobicity + siab rigidity." Cov kws tshawb fawb tau npaj hydroxyl-terminated polysiloxane (PMMS) siv 3-mercaptopropylmethyldimethoxysilane thiab octamethylcyclotetrasiloxane, tom qab ntawd grafted isobornyl acrylate (ib tug derivative ntawm biomass-derived camphene) mus rau PMMS sab chains ntawm UV-initiated MS-formoxene clickane).
Kev hloov kho WPU tau pom tias muaj kev txhim kho zoo kawg li: lub kaum sab xis dej zoo li qub tau dhia los ntawm 70.7 ° txog 101.2 ° (txog cov nplooj ntoo zoo li superhydrophobicity), dej nqus tau poob los ntawm 16.0% mus rau 6.9%, thiab lub zog tensile tau nce los ntawm 4.70MPa mus rau 8.82MPa.pen vim cov qauv tsim. Kev tsom xam thermogravimetric kuj tau qhia txog kev txhim kho thermal stability. Cov thev naus laus zis no muaj kev sib xyaw ua ke "tiv thaiv fouling + huab cua-resistant" kev daws teeb meem rau kev tsheb ciav hlau sab nrauv xws li lub ru tsev panels thiab sab tiab.
Txoj Kev 2: Polyimine Crosslinking Enables "Kev Kho Tus Kheej" Technology
Kev kho tus kheej tau tshwm sim los ua ib qho kev siv thev naus laus zis hauv cov txheej txheej, thiab xyoo no kev tshawb fawb tau ua ke nrog WPU cov khoom siv kho tshuab kom ua tiav ob qho kev sib tw hauv "kev ua haujlwm siab + kev muaj peev xwm kho tus kheej." Crosslinked WPU npaj nrog polybutylene glycol (PTMG), isophorone diisocyanate (IPDI), thiab polyimine (PEI) raws li crosslinker nthuav tawm cov khoom siv zoo nkauj: tensile zog ntawm 17.12MPa thiab elongation ntawm tawg ntawm 512.25% (ze rau roj hmab yooj).
Qhov tseem ceeb, nws ua tiav kev kho tus kheej hauv 24 teev ntawm 30 ° C - rov qab mus rau 3.26MPa tensile lub zog thiab 450.94% elongation tom qab kho. Qhov no ua rau nws tsim nyog rau qhov khawb-nruab qhov chaw xws li tsheb bumpers thiab tsheb ciav hlau sab hauv, txo cov nqi kho mob.
"Nanoscale Intelligent Control": Ib "Ntog Revolution" rau Anti-Fouling Txheej
Anti-graffiti thiab yooj yim tu yog qhov tseem ceeb ntawm cov txheej txheem high-end. Xyoo no, txheej txheej fouling-resistant (NP-GLIDE) raws li "kua-zoo li PDMS nanopools" nyiam mloog. Nws lub hauv paus ntsiab lus tseem ceeb suav nrog grafting polydimethylsiloxane (PDMS) sab chains mus rau hauv dej-dispersible polyol qaum qaum ntawm graft copolymer polyol-g-PDMS, tsim "nanopools" me dua 30nm inch.
PDMS enrichment nyob rau hauv cov nanopools no muab cov txheej "kua-zoo li" nto-tag nrho cov kua ntsuas nrog nto nro saum 23mN / m (xws li, kas fes, roj stains) swb tawm yam tsis muaj qhov cim tseg. Txawm hais tias lub hardness ntawm 3H (ze rau cov iav zoo tib yam), cov txheej txheem tswj kev ua haujlwm zoo los tiv thaiv fouling.
Tsis tas li ntawd, "kev tiv thaiv lub cev + kev tu me me" los tiv thaiv graffiti lub tswv yim: qhia IPDI trimer rau hauv HDT-raws li polyisocyanate los txhim kho cov yeeb yaj kiab ceev thiab tiv thaiv graffiti nkag mus, thaum tswj kev tsiv teb tsaws ntawm silicone / fluorine ntu kom ntseeg tau tias lub zog tsis muaj zog ntev ntev. Ua ke nrog DMA (Dynamic Mechanical Analysis) rau qhov tseeb crosslink ceev tswj thiab XPS (X-ray Photoelectron Spectroscopy) rau kev cuam tshuam kev tsiv teb tsaws, cov thev naus laus zis no tau npaj rau kev lag luam thiab xav tias yuav dhau los ua tus qauv tshiab rau kev tiv thaiv fouling hauv automotive xim thiab 3C khoom casings.
Xaus
Xyoo 2025, WPU txheej tshuab tau hloov pauv los ntawm "kev txhim kho ib leeg" mus rau "kev sib koom ua ke ntau yam." Txawm hais tias los ntawm kev txhim kho cov qauv yooj yim, kev hloov kho tshuaj lom neeg, lossis kev tsim kho tshiab, cov ntsiab lus tseem ceeb yog nyob ntawm kev sib koom ua ke "kev phooj ywg ib puag ncig" thiab "kev ua haujlwm siab." Rau kev lag luam xws li tsheb thauj mus los thiab kev tsheb ciav hlau, cov kev siv thev naus laus zis no tsis yog tsuas yog txuas ntxiv lub neej ntawm cov txheej txheem thiab txo cov nqi kho tab sis kuj tseem txhawb nqa kev hloov kho dual hauv "kev tsim ntsuab" thiab "cov neeg siv khoom siab kawg."
Post lub sij hawm: Nov-14-2025