Musiyano uripo pakati peTPU polyester nepolyether, uye hukama huripo pakati pepolycaprolactone neTPU

Musiyano uripo pakati peTPU polyester nepolyether, uye hukama huripo pakatipolycaprolactone TPU

Chekutanga, musiyano uripo pakati peTPU polyester nepolyether

Thermoplastic polyurethane (TPU) imhando yezvinhu zve elastomer zvinoshanda zvakanyanya, zvinoshandiswa zvakanyanya muminda yakasiyana-siyana. Zvichienderana nemaumbirwo akasiyana echikamu chayo chakapfava, TPU inogona kukamurwa kuva mhando yepolyester uye mhando yepolyether. Kune mutsauko wakakura mukushanda uye mashandisirwo pakati pemhando mbiri idzi.

Polyester TPU ine simba rakawanda uye inodzivirira kupera, ine hunhu hwekudhonza, ine hunhu hwekukotama uye inodzivirira kunyunguduka zvakanaka kwazvo. Pamusoro pezvo, ine hunhu hwakanaka hwekupisa kwakanyanya uye yakakodzera kushandiswa munzvimbo dzinopisa zvakanyanya. Zvisinei, inodzivirira hydrolysis yepolyester TPU haina kunaka, uye iri nyore kukundwa nemamorekuru emvura uye kupwanyika.

Mukupesana ne,polyether TPUinozivikanwa nekusimba kwayo kwakanyanya, kuramba hydrolysis uye kutsungirira kwakanyanya. Kushanda kwayo pakupisa kwakaderera kwakanakawo, kwakakodzera kushandiswa munzvimbo dzinotonhora. Zvisinei, simba rekubvisa maganda uye simba rekutyoka kwepolyether TPU hazvina kusimba, uye kuramba kudhonzwa, kupera nekubviswa kwepolyester TPU kwakadererawo pane kwepolyester TPU.

Chechipiri, polycaprolactone TPU

Polycaprolactone (PCL) chinhu chakakosha chepolymer, nepo TPU ipfupiso ye thermoplastic polyurethane. Kunyangwe zvese zviri zvinhu zve polymer, polycaprolactone pachayo haisi TPU. Zvisinei, mukugadzirwa kweTPU, polycaprolactone inogona kushandiswa sechinhu chakakosha chechikamu chakapfava kuti iite ne isocyanate kugadzira TPU elastomers ine hunhu hwakanaka.

Chechitatu, hukama huripo pakati pepolycaprolactone neTPU masterbatch

Masterbatch inoita basa guru mukugadzirwa kweTPU. Masterbatch ipurasitiki ine simba guru, inowanzo umbwa nezvinhu zvakasiyana-siyana zvakaita sepolymer, plasticizer, stabilizer, nezvimwewo. Mukugadzirwa kweTPU, masterbatch inogona kuita nechain extender, crosslinking agent, nezvimwewo, kugadzira zvigadzirwa zveTPU zvine hunhu hwakasiyana.

Sezvinhu zvepolymer zvinoshanda zvakanyanya, polycaprolactone inowanzoshandiswa sechinhu chakakosha cheTPU masterbatch. Nekugadzirira polycaprolactone nezvimwe zvinhu, zvigadzirwa zveTPU zvine hunhu hwakanaka hwemakanika, kuramba hydrolysis uye kuramba kupisa kwakaderera zvinogona kugadzirwa. Zvigadzirwa izvi zvine mikana yakawanda yekushandisa munzvimbo dzezvipfeko zvisingaoneki, zvishandiso zvekurapa, shangu dzemitambo nezvimwewo.

Chechina, hunhu uye mashandisirwo e polycaprolactone TPU

Polycaprolactone TPU inofunga nezvezvakanakira zvepolyester nepolyether TPU, uye ine hunhu hwakanaka hwakakwana. Haingori chete ine simba guru remuchina uye inodzivirira kupera, asiwo inoratidza kuramba kwakanaka kwehydrolysis uye kuramba kupisa kwakaderera. Izvi zvinoita kuti polycaprolactone TPU ive nehupenyu hwakareba uye kugadzikana munzvimbo dzakaoma uye dzinochinja-chinja.

Munyaya yezvipfeko zvisingaonekwe, polycaprolactone TPU ndiyo yave chinhu chinodiwa nekuda kwehunhu hwayo hwakanaka hwezvinhu zvakakwana. Inogona kuramba kukanganiswa nezvinhu zvekunze zvakaita semvura ine acid, guruva, tsvina yeshiri, uye inoita kuti zvipfeko zvemotokari zvishande zvakanaka uye zvigare kwenguva refu. Pamusoro pezvo, muminda yezvigadzirwa zvekurapa, michina yemitambo, nezvimwewo, polycaprolactone TPU yave ichinyanya kutariswa nekuda kwekuchengetedzeka kwayo uye kuvimbika kwayo.

Muchidimbu, pane musiyano mukuru pakati peTPU polyester nepolyether mukushanda nekushandiswa, nepo polycaprolactone, sechimwe chezvinhu zvakakosha zveTPU, inopa zvigadzirwa zveTPU hunhu hwakanaka hwakakwana. Nekunzwisisa kwakadzama hukama nehunhu huripo pakati pezvinhu izvi, tinogona kusarudza zviri nani nekushandisa zvigadzirwa zveTPU zvakakodzera kuti zvizadzise zvinodiwa neminda yakasiyana.