Waterborne polyurethane imhando itsva yepolyurethane system inoshandisa mvura pachinzvimbo chezvinonyungudutsa zveorganic senzira yekuparadzira. Iyo ine zvakanakira kusasvibisa, chengetedzo uye kuvimbika, yakanakisa michina zvivakwa, kugarisana kwakanaka, uye nyore kugadzirisa.
Zvisinei, zvinhu zvepolyurethane zvinotamburawo nekusamira zvakanaka kwemvura, kusapisa kwekushisa, uye kushomeka kwemuchinjiziri nekuda kwekushaikwa kwezvisungo zvakatsiga.
Naizvozvo, zvinodikanwa kuvandudza nekugadzirisa zvakasiyana-siyana zvekushandisa zve polyurethane nekuunza inoshanda monomers senge organic fluorosilicone, epoxy resin, acrylic ester, uye nanomaterials.
Pakati pavo, nanomaterial yakagadziridzwa polyurethane zvinhu zvinogona kuvandudza zvakanyanya mashandiro avo emuchina, kupfeka kuramba, uye kugadzikana kwekupisa. Maitiro ekugadzirisa anosanganisira intercalation composite nzira, in-situ polymerization nzira, nzira yekubatanidza, nezvimwe.
Nano Silica
SiO2 ine matatu-dimensional network dhizaini, ine nhamba huru yeanoshanda hydroxyl mapoka pamusoro payo. Inogona kuvandudza huwandu hwezvinhu zvemusanganiswa mushure mekubatanidzwa ne polyurethane ne covalent bond uye van der Waals simba, zvakadai sekushanduka, yakakwirira uye yakaderera tembiricha kuramba, kuchembera kuramba, etc. Guo et al. synthesized nano-SiO2 yakagadziridzwa polyurethane uchishandisa in-situ polymerization nzira. Kana iyo SiO2 yemukati yaive inosvika 2% (wt, chidimbu chikamu, zvakafanana pazasi), iyo shear viscosity uye peel simba rekunamatira zvakagadziridzwa. Kuenzaniswa neyakachena polyurethane, iyo yakanyanya tembiricha kuramba uye kusimba kwesimba kwakawedzerawo zvishoma.
Nano Zinc Oxide
Nano ZnO ine yakakwira mechanical simba, yakanaka antibacterial uye bacteriostatic properties, pamwe nekukwanisa kwakasimba kutora infrared radiation uye yakanaka UV kudzivirira, zvichiita kuti ive yakakodzera kugadzira zvinhu zvine mabasa akakosha. Awad et al. yakashandisa nano positron nzira yekubatanidza ZnO fillers mu polyurethane. Chidzidzo ichi chakawana kuti paive nekudyidzana pakati pe nanoparticles uye polyurethane. Kuwedzera zviri mukati nano ZnO kubva 0 kusvika 5% kwakawedzera tembiricha yegirazi (Tg) ye polyurethane, iyo yakavandudza kugadzikana kwayo kwekupisa.
Nano Calcium Carbonate
Kudyidzana kwakasimba pakati pe nano CaCO3 uye matrix kunowedzera zvakanyanya kusimba kwesimba re polyurethane zvinhu. Gao et al. yekutanga yakagadziridzwa nano-CaCO3 ine oleic acid, uye yozogadzira polyurethane/CaCO3 kuburikidza ne-situ polymerization. Infrared (FT-IR) bvunzo yakaratidza kuti nanoparticles dzakaparadzirwa zvakafanana mumatrix. Zvinoenderana nemakanika kuita bvunzo, zvakaonekwa kuti polyurethane yakagadziridzwa nenanoparticles ine yakakwira tensile simba pane yakachena polyurethane.
Graphene
Graphene (G) chimiro chakaturikidzana chakasungirirwa neSP2 hybrid orbitals, iyo inoratidza yakanakisa conductivity, kupisa kwemafuta, uye kugadzikana. Iine simba rakakwirira, kusimba kwakanaka, uye iri nyore kukotama. Wu et al. synthesized Ag / G / PU nanocomposites, uye nekuwedzera kweAg / G zvinyorwa, kugadzikana kwekupisa uye hydrophobicity yezvinhu zvakasanganiswa zvakaramba zvichivandudza, uye antibacterial performance yakawedzerawo saizvozvo.
Carbon Nanotubes
Carbon nanotubes (CNTs) ane-dimensional tubular nanomaterials akabatana nehexagons, uye parizvino ndeimwe yezvigadzirwa zvine huwandu hwakawanda hwekushandisa. Nekushandisa simba rayo repamusoro, conductivity, uye polyurethane composite zvivakwa, kugadzikana kwekupisa, mechanical zvivakwa, uye conductivity yezvinhu zvinogona kuvandudzwa. Wu et al. yakaunza CNTs kuburikidza ne-situ polymerization kudzora kukura uye kuumbwa kwe emulsion particles, zvichiita kuti CNTs iparadzwe zvakafanana mu polyurethane matrix. Nekuwedzera kuri kuita maCNTs, kusimba kwekusimba kweiyo komputa zvinhu kwakagadziridzwa zvakanyanya.
Kambani yedu inopa yemhando yepamusoro Fumed Silica,Anti-hydrolysis Agents (crosslinking agents, Carbodiimide), UV absorbers, nezvimwewo, izvo zvinonyanya kuvandudza kushanda kwe polyurethane.
Nguva yekutumira: Jan-10-2025