Paʻi mānoanoa

Paʻi mānoanoa

ʻO nā mānoanoa paʻi kekahi o nā mānoanoa i hoʻohana pinepine ʻia i ka ʻoihana paʻi.I ka paʻi ʻana, ʻelua mau mea nui i hoʻohana ʻia ʻo ke kāpili a me ka paʻi kala.A no ka emi ʻana o ke kūpaʻa ma lalo o ka ikaika shearing kiʻekiʻe, hoʻohana ʻia nā mānoanoa e hoʻonui i ka paʻa ʻana o nā mea paʻi, a pono nā mīkini paʻi i kēia manawa.

ʻO ka hana nui o ka mānoanoa paʻi ʻo ia ka hāʻawi ʻana i nā waiwai rheological maikaʻi, hoʻololi i ke kāpili a i ʻole ka paʻi kala ma ka pale paʻi a me ka ʻōwili paʻi i ka lole, i hui pū ʻia ke kala a me ka fiber e hōʻoia i ke ʻano paʻi akaka.Akaka ke kumu hoʻohālike a ʻālohilohi ka waihoʻoluʻu;ke hoʻopaʻa ʻia ke kala, hoʻoneʻe maʻalahi nā huahana hopena a me nā koena i ke kaʻina o lalo, me ka palupalu o ka lole.Hōʻike kēia i ka hana koʻikoʻi o ka paʻi mānoanoa i ka ʻoihana paʻi.

ʻO ka mānoanoa paʻi disperse he mānoanoa emulsion mānoanoa i hoʻopili ʻia.Ma hope o ka hoʻoheheʻe ʻia ʻana a hoʻokaʻawale ʻia me ka wai, e hoʻonui wikiwiki ʻia nā ʻāpana polimer wai.I kēia hihia, e lilo ka huahana i paʻi ʻia i mea akaka a pili.Hiki i ka disperse paʻi mānoanoa ke hoʻonui i ka viscosity shear haʻahaʻa o ka ʻōnaehana paʻi a hana i ka ʻōnaehana paʻi i kahi pseudoplasticity kiʻekiʻe.ʻO ka paʻi kala i hoʻomākaukau ʻia me ka mānoanoa paʻi dispersion e like me ka mānoanoa nui i ʻoi aku ka nui o ka hua a me ke ʻano gel.ʻAʻole ʻike ʻia kēia ʻano a hiki i ka nalo ʻana o ka ikaika ʻā.No laila, kūpono ka mānoanoa paʻi dispersion no ka hoʻomākaukau ʻana i ka paʻi ʻana me ka hopena kumu hoʻohālike ʻekolu-dimensional.

He mōʻaukala lōʻihi ka hoʻomohala ʻana o nā mea paʻi mānoanoa.ʻO ka nui i hoʻohana ʻia i ka wā lōʻihi he starch a i ʻole starch hoʻololi ʻia.Kapa ʻia kēia ʻano mānoanoa he mānoanoa maoli, akā he kiʻekiʻe ke kumu kūʻai o kēia ʻano paʻi mānoanoa, haʻahaʻa ka hohonu o ka waihoʻoluʻu, maikaʻi ʻole, ʻaʻohe wikiwiki o ka holoi ʻana, a me ke ʻano o ka lole ʻoluʻolu.I kēia manawa, ua hoʻopau ʻia kēia ʻano mānoanoa.ʻAʻole a hiki i ka makahiki 1950 i hoʻokomo ai nā kānaka i kahi pulp aupuni, i hiki ai ke hoʻohana nui ʻia ka ʻenehana paʻi.Ke hoʻohana nei i ka aila a me ka wai ma ke ʻano he mea maka, e hana ʻia ka emulsification kiʻekiʻe ma lalo o ka hana a nā emulsifiers e hana i kahi mānoanoa slurry mokuʻāina.No ka mea, aia ka ʻaila mānoanoa ma luna o 50 # a nui ka nui, e hoʻohaumia nui ia i ka lewa a loaʻa ka pilikia o ka pahū.Eia kekahi, ʻaʻole maʻalahi ka hoʻoponopono ʻana o ka paʻi paʻi, a e mau ke ʻala kerosene ma ka lole ma hope o ka paʻi ʻana.No laila ʻaʻole māʻona ka poʻe i kēia mānoanoa paʻi.I ka makahiki 1970, hoʻomaka ka poʻe e hoʻomohala a hana i nā mānoanoa synthetic.ʻO ka puka ʻana o nā mānoanoa synthetic ua hoʻoikaika nui i ka hoʻomohala ʻana i ka hana paʻi a hoʻonui i ka ʻenehana paʻi i kahi pae hou.Hoʻoponopono ia i ka haumia kaiapuni a me nā pilikia palekana.Eia kekahi, ʻoi aku ka maikaʻi o ka mānoanoa synthetic i ka hopena mānoanoa maikaʻi, ka lawe ʻana a me ka mālama ʻana, ka hoʻomākaukau maʻalahi, ka hoʻolālā maʻemaʻe, ke kala ʻulaʻula a me nā mea like.

ʻO mākou nā mea hoʻolako paʻi mānoanoa.Inā makemake ʻoe i kā mākou huahana, e ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.