Polyurethane inofambiswa nemvura imhando itsva ye polyurethane system inoshandisa mvura panzvimbo pezvinhu zvinonyungudutsa senzira yekuparadzira. Ine zvakanakira zvekusava nekusvibiswa, kuchengetedzeka uye kuvimbika, hunhu hwakanaka hwemakanika, kushanda zvakanaka, uye kugadziriswa zviri nyore.
Zvisinei, zvinhu zvepolyurethane zvinotamburawo nekusagona kudzivirira mvura, kusakwanisa kupisa, uye kusagona kunyungudutsa mvura nekuda kwekushaikwa kwezvisungo zvinobatanidza zvinhu zvakasimba.

Saka, zvakakosha kuvandudza nekugadzirisa mashandisirwo akasiyana-siyana epolyurethane nekuisa mamonomers anoshanda akadai se organic fluorosilicone, epoxy resin, acrylic ester, uye nanomaterials.
Pakati pazvo, zvinhu zvepolyurethane zvakagadziriswa zve nanomaterial zvinogona kuvandudza zvakanyanya hunhu hwazvo hwemakanika, kuramba kupfeka, uye kugadzikana kwekupisa. Nzira dzekugadzirisa dzinosanganisira nzira yekubatanidza, nzira yepolymerization iri munzvimbo, nzira yekubatanidza, nezvimwewo.

Nano Silika
SiO2 ine network ine mativi matatu, ine huwandu hwakawanda hwemapoka anoshanda ehydroxyl pamusoro payo. Inogona kuvandudza hunhu hwakazara hwecomposite mushure mekusanganiswa nepolyurethane ne covalent bond uye van der Waals force, zvakaita sekuchinjika, kuramba kupisa kwakanyanya uye kwakaderera, kuramba kukwegura, nezvimwewo. Guo nevamwe vake vakagadzira nano-SiO2 modified polyurethane vachishandisa in-situ polymerization method. Kana huwandu hweSiO2 hwaive hwe2% (wt, mass fraction, zvakafanana pazasi), shear viscosity uye peel strength yeglue zvakavandudzwa zvakanyanya. Zvichienzaniswa ne pure polyurethane, kuramba kupisa kwakanyanya uye simba rekusunga zvakawedzerawo zvishoma.

Nano Zinc Oxide
Nano ZnO ine simba guru remuchina, ine simba rekurwisa mabhakitiriya uye bacteriostatic, pamwe nekukwanisa kwakasimba kupinza mwaranzi ye infrared uye kudzivirira UV zvakanaka, zvichiita kuti ive yakakodzera kugadzira zvinhu zvine mabasa akakosha. Awad nevamwe vake vakashandisa nzira ye nanopositron kuisa ZnO fillers mu polyurethane. Chidzidzo ichi chakaona kuti paive nekudyidzana pakati pe nanoparticles ne polyurethane. Kuwedzera huwandu hwe nano ZnO kubva pa0 kusvika pa5% kwakawedzera girazi transition temperature (Tg) ye polyurethane, izvo zvakavandudza kugadzikana kwayo kwekupisa.

Nano Calcium Carbonate
Kudyidzana kwakasimba pakati pe nano CaCO3 ne matrix kunowedzera simba rekudhonza re polyurethane. Gao nevamwe vake vakatanga vagadzirisa nano-CaCO3 ne oleic acid, ndokuzogadzira polyurethane/CaCO3 kuburikidza ne in-situ polymerization. Kuongororwa kwe infrared (FT-IR) kwakaratidza kuti nanoparticles dzakapararira zvakaenzana mu matrix. Zvichienderana nekuyedzwa kwekushanda kwemechanical, zvakaonekwa kuti polyurethane yakagadziriswa ne nanoparticles ine simba rekudhonza rakakwirira kupfuura pure polyurethane.

Graphene
Graphene (G) chimiro chakabatanidzwa neSP2 hybrid orbitals, chinoratidza conductivity yakanaka, conductivity yekupisa, uye kugadzikana. Ine simba rakakwirira, kusimba kwakanaka, uye iri nyore kukotama. Wu nevamwe vake vakagadzira Ag/G/PU nanocomposites, uye nekuwedzera kwehuwandu hweAg/G, kugadzikana kwekupisa uye hydrophobicity yezvinhu zvakasanganiswa zvakaramba zvichivandudzika, uye kushanda kweantibacterial kwakawedzerawo zvinoenderana.

Machubhu eKabhoni
Matubhu eCarbon nanotubes (CNTs) imhando imwe chete yematubhu etubhu akabatana nemahexagon, uye parizvino ndeimwe yezvinhu zvine mashandisirwo akasiyana-siyana. Nekushandisa simba rayo guru, conductivity, uye polyurethane composite properties, kugadzikana kwekupisa, mechanical properties, uye conductivity yezvinhu zvinogona kuvandudzwa. Wu et al. vakaunza CNTs kuburikidza ne in-situ polymerization kudzora kukura nekuumbwa kwe emulsion particles, zvichiita kuti CNTs dziparadzirwe zvakaenzana mu polyurethane matrix. Nekuwedzera kwehuwandu hweCNTs, simba rekudhonza re composite material rakagadziridzwa zvikuru.

Kambani yedu inopa mhando yepamusoroFumed Silica, Mishonga Inodzivirira Hydrolysis (inoshanda pakusanganisa, Carbodiimide), zvinonyudza UV, nezvimwewo, izvo zvinovandudza zvikuru mashandiro epolyurethane.