Gukoresha Nano-ibikoresho muburyo bwahinduwe na Polyurethane Amazi

Amazi ya polyurethane ni ubwoko bushya bwa sisitemu ya polyurethane ikoresha amazi aho gukoresha ibimera nkumuti ukwirakwiza. Ifite ibyiza byo kutagira umwanda, umutekano no kwizerwa, imiterere myiza yubukanishi, guhuza neza, no guhindura byoroshye.
Nyamara, ibikoresho bya polyurethane nabyo bibabazwa no kurwanya amazi mabi, kutarwanya ubushyuhe, no kwihanganira ibishishwa bitewe no kubura imiyoboro ihamye.

Niyo mpamvu, birakenewe kunonosora no kunoza uburyo butandukanye bwo gukoresha polyurethane mugutangiza monomer ikora nka fluorosilicone organic, epoxy resin, estry acrylic, na nanomaterial.
Muri byo, ibikoresho bya nanomaterial byahinduwe na polyurethane birashobora kunoza cyane imiterere yubukanishi, kwambara, hamwe nubushyuhe bwumuriro. Uburyo bwo guhindura burimo uburyo bwo guhuza uburyo, muburyo bwa polymerisiyonike, uburyo bwo kuvanga, nibindi.

Nano Silica
SiO2 ifite imiterere-yuburyo butatu, hamwe numubare munini wamatsinda ya hydroxyl ikora hejuru yayo. Irashobora kunoza imiterere yuzuye yibigize nyuma yo guhuzwa na polyurethane hamwe na covalent bond hamwe nimbaraga za van der Waals, nko guhinduka, guhangana nubushyuhe buke kandi buke, kurwanya gusaza, nibindi Guo nibindi. synthesize nano-SiO2 yahinduwe polyurethane ukoresheje uburyo bwa polymerisation. Iyo ibirimo bya SiO2 byari hafi 2% (wt, igice kinini, kimwe kimwe hepfo), ubukonje bwikariso nimbaraga zishishwa byafashwe neza. Ugereranije na polyurethane isukuye, ubushyuhe bwo hejuru hamwe nimbaraga zingana nabyo byiyongereyeho gato.

Nano Zinc Oxide
Nano ZnO ifite imbaraga zo gukanika cyane, antibacterial na bacteriostatike nziza, hamwe nubushobozi bukomeye bwo kwinjiza imirasire yimirasire hamwe na UV ikingira neza, bigatuma ikorwa mubikoresho bifite imirimo yihariye. Awad n'abandi. yakoresheje uburyo bwa nano positron kugirango yinjize ZnO yuzuza polyurethane. Ubushakashatsi bwerekanye ko hari imikoranire hagati ya nanoparticles na polyurethane. Kongera ibiri muri nano ZnO kuva 0 kugeza 5% byongereye ubushyuhe bwikirahure (Tg) bwa polyurethane, byateje imbere ubushyuhe bwumuriro.

Nano Kalisiyumu Carbone
Imikoranire ikomeye hagati ya nano CaCO3 na matrix yongerera cyane imbaraga zingana nibikoresho bya polyurethane. Gao n'abandi. wabanje guhindura nano-CaCO3 hamwe na aside oleic, hanyuma utegura polyurethane / CaCO3 unyuze muri polymerisation. Igeragezwa rya Infrared (FT-IR) ryerekanye ko nanoparticles yatatanye kimwe muri matrix. Ukurikije ibizamini bya mashini, byagaragaye ko polyurethane yahinduwe na nanoparticles ifite imbaraga zingana kurenza polyurethane.

Graphene
Graphene (G) ni urwego rwubatswe ruhujwe na orbitale ya SP2 ya Hybrid, yerekana uburyo bwiza bwo gutwara ibintu, ubushyuhe bwumuriro, hamwe no gutuza. Ifite imbaraga nyinshi, gukomera, kandi biroroshye kunama. Wu n'abandi. synthesize Ag / G / PU nanocomposite, hamwe no kwiyongera kwa Ag / G, ihindagurika ryumuriro hamwe na hydrophobicity yibikoresho byakomeje gutera imbere, kandi imikorere ya antibacterial nayo yariyongereye bikwiranye.

Carbon Nanotubes
Carbone nanotubes (CNTs) nimwe murwego rumwe rwa tubular nanomateriali ihujwe na hexagons, kandi kuri ubu ni kimwe mubikoresho bifite uburyo bwinshi bwo gukoresha. Ukoresheje imbaraga zayo nyinshi, ubwikorezi, hamwe na polyurethane yibintu, imiterere yubushyuhe, imiterere yubukanishi, hamwe nubushobozi bwibikoresho birashobora kunozwa. Wu n'abandi. Yatangije CNT ibinyujije muri polymerisiyasi kugirango igenzure imikurire n’imiterere ya emulsiyo, bituma CNT ikwirakwizwa kimwe muri matrise ya polyurethane. Hamwe nubwiyongere bwibintu bya CNT, imbaraga zingirakamaro yibikoresho byahujwe byateye imbere cyane.

Isosiyete yacu itanga ubuziranenge bwa Fumed Silica,Ibikoresho birwanya hydrolysis (imiti ihuza, Carbodiimide), Imashini ya UV, nibindi, bitezimbere cyane imikorere ya polyurethane.