Fa'aoga lelei mo le Stearic Acid

Stearic acid, poʻo le octadecanoic acid, molecular formula C18H36O2, e gaosia e le hydrolysis o gaʻo ma suauʻu ma e masani ona faʻaaogaina i le gaosiga o stearates. O kalama ta'itasi e fa'amavae i le 21ml ethanol, 5ml benzene, 2ml chloroform po'o le 6ml carbon tetrachloride. E pa'epa'e ga'o manino mama po'o sina samasama waxy malo, e mafai ona ta'ape i totonu o le pauta, sina manogi pata. I le taimi nei, o le tele o gaosiga i totonu o le atunuʻu o atinaʻe stearic acid o loʻo faʻaulufale mai i fafo atu o le suauu pama, faʻamaʻiina i le suauʻu faʻamaʻa, ona faʻasolosolo ai lea o le hydrolysis e fai ai le stearic acid.

O le Stearic acid e masani ona faʻaaogaina i mea teuteu, mea faʻapipiʻi palasitika, mea e faʻamalolo ai, stabilizers, surfactants, paʻu vulcanisation accelerators, vai e faʻafefeteina, mea faʻamalo, fasimoli uʻamea, uʻamea faʻafefe o minerale, faʻamaluluina, vailaʻau ma isi vailaʻau faʻasolosolo. E mafai fo'i ona fa'aogaina le vaila'au o le Stearic e fai ma so'o mo lanu e so'ona suau'u, se peni vali fa'ase'e, se mea e fa'aiila pepa solo, ma se emulsifier mo le glycerol stearate. O le Stearic acid o loʻo faʻaaogaina lautele i le gaosiga o paipa palasitika PVC, ipu, faʻamatalaga ma ata tifaga, ma o se faʻamautu vevela mo PVC ma le lubricity lelei ma le malamalama lelei ma le faʻamautuina o le vevela.

Mono-poʻo polyol esters o le stearic acid e mafai ona faʻaaogaina e fai ma mea teuteu, mea e le-ionic surfactants, plasticisers ma isi. O lona masima u'amea alkali e solu i le vai ma o se tasi o vaega autu o le fasimoli, ae o isi masima uʻamea e mafai ona faʻaaogaina e fai ma vai faʻafefe, lubricants, fungicides, vali faʻapipiʻi ma PVC stabilisers.

O le matafaioi a le stearic acid i mea polymeric o loʻo faʻaalia i lona gafatia e faʻaleleia ai le mautu o le vevela. O mea polymer e faigofie ona faʻaleagaina ma faʻamaʻiina i le taimi o le gaosiga o le vevela maualuga, e mafua ai le faʻaitiitia o le faʻatinoga. O le faʻaopoopoga o le stearic acid e mafai ona faʻagesegese lelei ai lenei faiga faʻaleagaina ma faʻaitiitia ai le malepelepe o filifili mole, ma faʻalauteleina ai le ola tautua o mea. E taua tele lenei mea i le gaosiga o oloa e faʻafefe maualuga le vevela e pei o le faʻaogaina o le uaea ma mea tau taavale.

O le Stearic acid o lo'o i ai ni mea e sili ona lelei e lubricating e pei o se lubricant. I mea polymer, o le stearic acid e faʻaitiitia ai feteʻenaʻiga i le va o filifili mole, faʻatagaina le mea e tafe sili atu ona faigofie, ma faʻaleleia atili ai le lelei o le faagasologa. E aoga tele lenei mea mo le gaosiga o gaioiga e pei ole tui tui, extrusion ma calendering.

Stearic acid o loʻo faʻaalia ai se aafiaga palasitika i mea polymeric, faʻateleina le vaivai ma le faʻaogaina o mea. O le mea lea e faigofie ai ona fa'ameamea i foliga eseese, e aofia ai ata tifaga, fa'agaau ma tala'aga. O le palasitika a'afiaga o le stearic acid e masani ona faʻaaogaina i le gaosiga o pusa palasitika, taga palasitika ma pusa palasitika.

O mea polymeric e masani ona faʻafefe i vai, e mafai ona faʻaleagaina a latou meatotino ma mafua ai le pala. O le faʻaopoopoga o le stearic acid e faʻaleleia ai le faʻafefe o le vai o mea, faʻatagaina e tumau mau i totonu o siosiomaga susu. E taua tele lenei mea i vaega e pei o oloa i fafo, mea faufale ma fale masini eletise.

Stearic acid e fesoasoani e faʻaitiitia le suiga o lanu o mea polymeric i le UV ma siosiomaga vevela. E taua tele lenei mea i le gaosiga o oloa faʻamautu lanu e pei o laupapa faʻasalalau i fafo, vaega taʻavale i totonu ma meafale fafo.

O le Stearic acid e galue e pei o se mea faʻapipiʻi ma faʻafefe i mea polymeric. E faʻaitiitia ai le pipii i le va o molelaʻau ma faʻafaigofie le tafe o mea, aemaise lava i le faagasologa o tui. O le mea lea e faʻaleleia ai le gaosiga ma faʻaitiitia ai faaletonu o le oloa.

Stearic acid o loʻo faʻaaogaina e avea o se sui faʻafefete i le gaosiga o fetilaisa faʻapipiʻi e faʻamautinoa ai le faʻasalalau tutusa o mea faʻalaʻau. E fesoasoani lea i le fa'aleleia atili o le lelei ma le tutusa o le fa'afugala'au ma fa'amautinoa e maua e la'au mea'ai talafeagai.

O le Stearic acid e fa'aaogaina i le tele o ituaiga o alamanuia ma tagata fa'atau.

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Taimi meli: Iuni-05-2024
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