ʻO ka ʻokoʻa ma waena o ka TPU polyester a me ka polyether, a me ka pilina ma waena o ka polycaprolactone a me TPU

ʻO ka ʻokoʻa ma waena o ka TPU polyester a me ka polyether, a me ka pilina ma waenaTPU polycaprolactone

ʻO ka mea mua, ʻo ka ʻokoʻa ma waena o ka TPU polyester a me ka polyether

ʻO ka polyurethane Thermoplastic (TPU) kahi ʻano mea elastomer hana kiʻekiʻe, i hoʻohana nui ʻia ma nā ʻano like ʻole. Wahi a ke ʻano like ʻole o kona ʻāpana palupalu, hiki ke hoʻokaʻawale ʻia ka TPU i ke ʻano polyester a me ke ʻano polyether. Aia nā ʻokoʻa koʻikoʻi i ka hana a me ka hoʻohana ʻana ma waena o nā ʻano ʻelua.

He ikaika kiʻekiʻe ko Polyester TPU a me ke kūpaʻa ʻana i ka ʻaʻahu, nā waiwai tensile, nā waiwai kūlou a me ke kūpaʻa solvent he maikaʻi loa. Eia kekahi, he kūpaʻa wela kiʻekiʻe maikaʻi a kūpono no nā noi ma nā wahi wela kiʻekiʻe. Eia nō naʻe, ʻaʻole maikaʻi ke kūpaʻa hydrolysis o ka polyester TPU, a maʻalahi hoʻi ke komo ʻia e nā mole wai a haki.

He ʻokoʻa,TPU polyetherUa kaulana ʻia no kona ikaika kiʻekiʻe, ke kū'ē i ka hydrolysis a me ke kūpaʻa kiʻekiʻe. He maikaʻi loa hoʻi kāna hana haʻahaʻa haʻahaʻa, kūpono no ka hoʻohana ʻana i nā wahi anuanu. Eia nō naʻe, he nāwaliwali ka ikaika o ka ʻili a me ka ikaika haki o ka polyether TPU, a ʻoi aku ka haʻahaʻa o ke kūpaʻa tensile, wear a me ka haehae o ka polyether TPU ma mua o ka polyester TPU.

ʻO ka lua, ʻo ka polycaprolactone TPU

He mea polymer kūikawā ʻo Polycaprolactone (PCL), ʻoiai ʻo TPU he pōkole no ka polyurethane thermoplastic. ʻOiai he mau mea polymer lāua ʻelua, ʻaʻole ʻo polycaprolactone ponoʻī he TPU. Eia nō naʻe, i ke kaʻina hana o TPU, hiki ke hoʻohana ʻia ka polycaprolactone ma ke ʻano he ʻāpana palupalu koʻikoʻi e hana me ka isocyanate e hana i nā elastomers TPU me nā waiwai maikaʻi loa.

ʻO ke kolu, ka pilina ma waena o ka polycaprolactone a meʻO ka papa hana nui TPU

He kuleana koʻikoʻi ko Masterbatch i ka hana ʻana o TPU. He prepolymer kiʻekiʻe ka Masterbatch, i haku ʻia me nā ʻano ʻāpana like ʻole e like me ka polymer, plasticizer, stabilizer, a pēlā aku. I ke kaʻina hana o TPU, hiki i ka masterbatch ke hana me ka mea hoʻolōʻihi kaulahao, ka mea hoʻopili crosslinking, a pēlā aku, e hana i nā huahana TPU me nā waiwai kikoʻī.

Ma ke ʻano he mea polymer hana kiʻekiʻe, hoʻohana pinepine ʻia ka polycaprolactone ma ke ʻano he ʻāpana koʻikoʻi o ka TPU masterbatch. Ma o ka prepolymerization o ka polycaprolactone me nā ʻāpana ʻē aʻe, hiki ke hoʻomākaukau ʻia nā huahana TPU me nā waiwai mechanical maikaʻi loa, ke kū'ē ʻana i ka hydrolysis a me ke kū'ē ʻana i ka mahana haʻahaʻa. Loaʻa i kēia mau huahana kahi ākea o nā manaʻolana noi ma nā kahua o nā lole ʻike ʻole ʻia, nā lako lapaʻau, nā kāmaʻa haʻuki a pēlā aku.

ʻO ka hā, nā ʻano a me nā noi o ka polycaprolactone TPU

Manaʻo ka Polycaprolactone TPU i nā pono o ka polyester a me ka polyether TPU, a he mau waiwai piha maikaʻi aʻe. ʻAʻole wale ia he ikaika mechanical kiʻekiʻe a me ke kūpaʻa ʻana i ka ʻaʻahu, akā hōʻike pū kekahi i ke kūpaʻa hydrolysis maikaʻi a me ke kūpaʻa haʻahaʻa. ʻO kēia ka mea e loaʻa ai i ka polycaprolactone TPU kahi ola lawelawe lōʻihi a me ke kūpaʻa i nā ʻano paʻakikī a loli.

Ma ke kahua o nā lole ʻike ʻole ʻia, ua lilo ka polycaprolactone TPU i mea makemake nui ʻia ma muli o kona mau waiwai piha maikaʻi loa. Hiki iā ia ke pale aku i ka ʻino ʻana o nā mea o waho e like me ka ua waikawa, ka lepo, nā ʻōpala manu, a hōʻoia i ka hana a me ke ola o nā lole kaʻa. Eia kekahi, ma ke kahua o nā mea lapaʻau, nā lako haʻuki, a me nā mea ʻē aʻe, ua loaʻa i ka polycaprolactone TPU ka nānā nui ʻia no kona palekana a me ka hilinaʻi.

I ka pōkole, aia nā ʻokoʻa koʻikoʻi ma waena o ka TPU polyester a me ka polyether i ka hana a me ka hoʻohana ʻana, ʻoiai ʻo polycaprolactone, ma ke ʻano he hoʻokahi o nā ʻāpana koʻikoʻi o TPU, hāʻawi i nā huahana TPU i nā waiwai piha maikaʻi loa. Ma ka hoʻomaopopo hohonu ʻana i nā pilina a me nā ʻano ma waena o kēia mau mea, hiki iā mākou ke koho maikaʻi a hoʻopili i nā huahana TPU kūpono e hoʻokō i nā pono o nā ʻano like ʻole.