Tewetewe waiʻona

Tewetewe waiʻona mea he kemikala pīlali i mea hiki wawe ka wailana i loko o ka wai. Ua Ua loaa mai i ka makahiki 1924 ma nā chemists - Gonelem a me Hawaii - me ke kōkua o ke saponification naoh.

physical waiwai

Tewetewe waiʻona - he keʻokeʻo he lepo lā, me ka hiki, e hana i ka manaʻoe kūkulu. Kēia pīlali He loa ikaika a me ka'ōlewa, akā, ma hope mau hilinaʻi ma luna o ka mea e like ai o ka ona mau (ia absorbs wai), ka tensile ikaika emi, a he nui ductility ia lŘlŘ ka wā i kekahi degere o ka humidity. Ka mea, i ka hygroscopic waiwai, ka mea, ua hikiwawe mea hoʻoheheʻe (ʻano nui ka wai). Ma ke aloha nā'uheheʻe e like me ka momona, a me nā mea kāhinu, ia mea i hiki ia oe ke hoike mai. I ka hoʻohana 'ana i kēia waiwaiʻaʻoheʻawahia' ole, a laila, hiki ke noʻonoʻo pono e noho malie hoi.

loaa ka waiʻona

ua hoomakaukauia Tewetewe E like me ka lama a me PVA mai Tewetewe'ākeka ma ka hydrolysis a alcoholysis, a hua mai la i loko o ka palapala o ka granules a me ka pauka. heʻano o nāʻanoʻenehana ki ina hana like, mai hemahema hoi i ka loa a me ka luna 'manawa-e hoopau ana ia i loko o ka hoʻomākaukau o PVA.

Tewetewe waiʻona - ka hoʻohana a

PVA ua manawa i hoʻohana kaiāulu. He hiki pāʻani i ke kūlana o ka thickener me ka glue hana a me shampoos, ka mea hiki paka i ka latex mea. Ua Ua ana hoʻohana 'e hoihoi i ka hoola hou o ka pena. Manawa i kona hygroscopic waiwai, ka mea, ua hoʻomano hoʻohana 'ia i loko o ka haku o hygienicʻano. Kela ano keia ano o diapers, tampons a me nā pale poʻohiwi i i ka hoʻohana 'ana PVA. Mai poina i ka Tewetewe ka waiʻona, a me ka ai nā hoʻohua. Ua Ua hoʻohana 'ia e like me ka emulsifier i loko o ka? Iecaianoaaiiie o mayonnaise, sauces, ketchups a me ka' ē aʻe ai nā huahana, a i hoʻohana ua like me ka ʻono enhancer confectionery.

Hoikehonua, lapaau, hoi, ua lilo kekahi o ka waiwai o PVA. Ua Ua hoʻohana 'ia i loko o ka hana ana i kekahi mau laau lapaau, ma mua ana ia ia loa ua holoiʻia mai impurities. Ophthalmologists Tewetewe waiʻona hoʻohana no ka makaukau o ka maka kulu , a like me ka lubricant no ka hui 'nā aniani kaulona. O oncologists Ua loaʻa palapala noi i loko o ka iapaau ana o PVA Ka maʻi 'aʻai. Ma kekahi, ka mea, ua koi 'ia e hana' ole-ʻoki lāʻau lapaʻau embolization ina hana. A me ia mea i ka holoʻokoʻa huahelu o ka palapala noi o Tewetewe ka waiʻona ma ka laau lapaau.

I ka lole hana PVA ua hoʻohana 'ia no ka hoopau ana o kūpaʻa uila, a me ka pepa - no ka pepa me hoʻopōʻaiapuni. Eia kekahi, ia mea he paʻa mau ke keʻena o kaʻiʻo pepa wili. Tewetewe waiʻona mea pono poe hanahale, a metallurgists, hanaili, aia a Manufacturers o ka pena a me varnishes. All mea kanu ka hanaʻimi hoʻopunipuni olona, i hoʻohana 'ia no ka hana o PVA, a haawi mai ia i ka ikaika ma ke kaʻina hana o ka pepa paia olona.

Pela hoi, aole ia he 'epekema no microbiology i hoʻohana PVA ma ka immobilization o nā'ūhū a me aeee. Tewetewe waiʻona, a loaʻa aku ma ka palapala, i ka pau pākū pai. Ma keia kahua ka mea, ua hoʻohana 'ia e like me ka pīlali, ahu iho no ka ka hoʻopiliʻana kaʻina. Ua hiki ke hoʻohana i like me ka'ōpala a aiiay mea i loko o ka? Iecaianoaaiiie o ka penaʻana eiiiiiaiou aie i ka mea i kekahi, ahu iho o PVA ua hoopuni wehe.

Manufacturing hana a ana punahelu ua i hoʻohana me ka pomaikai, i kēia pīlali. PVA ua e lilo ana i oi, he pono ole i loko o ka hoʻokele waiwai. He loaʻa ma ke kumu kuai i ka mea wale nō i ka amo (IeAUPIIe, IAa IO i ea mauʻeke, piha i ka pepa mauʻeke) i loko o ka paʻa amo i mea e pale aku noho pulu. Mai ka Tewetewe waiʻona mea flammable, e mea pono, e like me ka maluhia rula i waho pūnaewele a me ka pēpēʻana.