Nā pilikia maʻamau a me nā hoʻonā i loaʻa i ka hydroxypropyl methylcellulose (HPMC) i loko o ka pauka putty!

maloʻo koke

ʻO ke kumu nui o kēia, ʻo ia ka hoʻohui nui ʻana o ka pauka kalipuna lehu (hiki ke hoʻemi kūpono ʻia ka nui o ka pauka kalipuna lehu i hoʻohana ʻia i loko o ka putty formula) e pili ana i ka nui o ka paʻa ʻana o ka wai o ka hydroxypropyl methylcellulose, a pili pū kekahi i ka maloʻo o ka paia.

Ke ʻili ʻana a me ka ʻōwili ʻana

Pili kēia i ke kiʻekiʻe o ka nui o ka calcium lehu a i ʻole ka haʻahaʻa o ka paʻa ʻana o ka wai o ka hydroxypropyl methylcellulose, kahi mea e hiki ke hana i ka wā e haʻahaʻa ai ka viscosity o ka cellulose a i ʻole ka liʻiliʻi o ka nui i hoʻohui ʻia.

Ka wehe ʻana i ka pauka o ka pauka putty paia o loko

Pili kēia i ka nui o ka pauka kalipuna lehu i hoʻohui ʻia (ʻo ka nui o ka pauka kalipuna lehu i loko o ke ʻano putty he liʻiliʻi loa ia a i ʻole ka maʻemaʻe o ka pauka kalipuna lehu he haʻahaʻa loa ia, a pono e hoʻonui pono ʻia ka nui o ka pauka kalipuna lehu i loko o ke ʻano putty), a pili pū kekahi i ka hoʻohui ʻana o ka cellulose. Aia kahi pilina ma waena o ka nui a me ke ʻano, i hōʻike ʻia i ka nui o ka paʻa ʻana o ka wai o ka huahana. Haʻahaʻa ka nui o ka paʻa ʻana o ka wai, a ʻaʻole lawa ka manawa hana o ka pauka kalipuna lehu (ʻaʻole i hoʻololi piha ʻia ka calcium oxide i loko o ka pauka kalipuna lehu i calcium hydroxide), ʻo ia ke kumu.

e pehu ana

Pili kēia i ka makū maloʻo a me ka palahalaha o ka paia, a pili pū kekahi i ke kūkulu ʻana.

kiko pine

Pili kēia i ka cellulose, nona nā waiwai hana ʻili maikaʻi ʻole. I ka manawa like, pane iki nā mea haumia i loko o ka cellulose me ka lehu calcium. Inā koʻikoʻi ka hopena, e ʻike ʻia ka pauka putty ma ke ʻano o ke koena bean curd. ʻAʻole hiki ke kau ʻia ma ka paia, a ʻaʻohe ona ikaika hoʻopili i ka manawa like. Eia kekahi, hana pū kēia kūlana me nā huahana e like me ka carboxymethyl i hui pū ʻia me ka cellulose.

ʻIke ʻia nā lua pele a me nā lua pinholes

He mea maopopo kēia e pili ana i ka ʻumeke wai o ka wai hoʻonā hydroxypropyl methylcellulose. ʻAʻole maopopo ka ʻumeke wai o ka wai hoʻonā hydroxyethyl. He mea maikaʻi ke hana i kahi hana hoʻopau. Pili pū kekahi i ka hoʻohui nui ʻana o ka hydroxypropyl methylcellulose.

Ma hope o ka maloʻo ʻana o ka putty, he maʻalahi ke haki a huli i ka melemele

Pili kēia i ka hoʻohui ʻana o ka nui o ka pauka lehu-calcium. Inā hoʻohui nui ʻia ka nui o ka pauka lehu-calcium, e piʻi aʻe ka paʻakikī o ka pauka putty ma hope o ka maloʻo ʻana. Inā ʻaʻohe palupalu o ka pauka putty, e nahā maʻalahi ia, ʻoiai ke kau ʻia i ka ikaika o waho. Pili pū kekahi i ka nui o ka calcium oxide i loko o ka pauka lehu calcium.

No ke aha i lahilahi ai ka pauka putty ma hope o ka hoʻohui ʻana i ka wai?

Hoʻohana ʻia ka Cellulose ma ke ʻano he mea hoʻomānoanoa a me ka mea mālama wai ma ka putty. Ma muli o ka thixotropy o ka cellulose ponoʻī, ʻo ka hoʻohui ʻana o ka cellulose i loko o ka pauka putty e alakaʻi pū i ka thixotropy ma hope o ka hoʻohui ʻana i ka wai i ka putty. Hoʻokumu ʻia kēia thixotropy e ka luku ʻia ʻana o ke ʻano hui ʻole o nā ʻāpana i loko o ka pauka putty. Kū aʻe kēia ʻano i ka wā hoʻomaha a haki i lalo o ke kaumaha. ʻO ia hoʻi, emi ka viscosity i lalo o ka hoʻoulu ʻana, a hoʻihoʻi ka viscosity i ka wā e kū mālie ai.

He aha ke kumu he kaumaha iki ka putty i ke kaʻina hana ʻokiʻoki?

I kēia hihia, ua kiʻekiʻe loa ka mānoanoa o ka cellulose i hoʻohana nui ʻia. Hoʻohana kekahi mau mea hana i 200,000 cellulose e hana i ka putty. He kiʻekiʻe ka mānoanoa o ka putty i hana ʻia ma kēia ʻano, no laila ua kaumaha ia i ka wā e ʻoki ʻia ai. ʻO ka nui i ʻōlelo ʻia no ka putty no nā paia o loko he 3-5 kg, a ʻo ka mānoanoa he 80,000-100,000.

No ke aha i ʻokoʻa ai ka mānoanoa o ka cellulose i ka wā e hoʻohana ai i ka cellulose mānoanoa like i ka hoʻoilo a me ke kauwela?

Ma muli o ka gelation thermal o ka huahana, e emi mālie ka viscosity o ka putty a me ka mortar me ka piʻi ʻana o ka mahana. Ke ʻoi aku ka mahana ma mua o ka mahana gel o ka huahana, e hoʻoheheʻe ʻia ka huahana mai ka wai a nalowale kona viscosity. ʻOi aku ka mahana o ka lumi i ke kauwela ma mua o 30 degere, he ʻokoʻa loa ia mai ka mahana i ka hoʻoilo, no laila ua haʻahaʻa ka viscosity. Manaʻo ʻia e koho i kahi huahana me ka viscosity kiʻekiʻe i ka wā e hoʻopili ai i ka huahana i ke kauwela, a i ʻole e hoʻonui i ka nui o ka cellulose, a e koho i kahi huahana me ka mahana gel kiʻekiʻe.


Ka manawa hoʻouna: Mei-19-2023