Ukusetyenziswa kakhulu kwe-Stearic Acid

I-asidi ye-Stearic, okanye i-octadecanoic acid, i-molecular formula C18H36O2, iveliswa yi-hydrolysis yamafutha kunye namafutha kwaye isetyenziswa kakhulu kwimveliso ye-stearates. Igram nganye inyibilika kwi-21ml ethanol, 5ml benzene, 2ml chloroform okanye 6ml carbon tetrachloride. Yinto emhlophe emhlophe ecacileyo eqinileyo okanye etyheli kancinane eqinileyo, inokusasazeka ibe ngumgubo, kancinane nevumba lebhotolo. Okwangoku, uninzi lwemveliso yasekhaya yamashishini e-stearic acid athunyelwa kumazwe angaphandle kweoli yesundu, i-hydrogenation kwi-oyile eqinisiweyo, emva koko i-hydrolysis distillation ukwenza i-stearic acid.

Iasidi Stearic isetyenziswa ngokubanzi kwizinto zokuthambisa, plasticizers zeplastiki, agents ukukhulula ngundo, stabilizers, surfactants, irabha vulcanisation accelerators, izinto zokugxotha amanzi, ii-agent zokupholisa, iisepha zesinyithi, i-metal mineral flotation agents, izithambiso, amayeza kunye nezinye iikhemikhali eziphilayo. Iasidi yeStearic isenokusetyenziswa njengesinyibilikisi kwibala elinyibilikayo kwi-oyile, i-agent yokutyibilika yekhrayoni, i-agent ye-wax yokupholisha iphepha, kunye ne-emulsifier ye-glycerol stearate. Iasidi yeStearic ikwasetyenziswa ngokubanzi ekwenzeni imibhobho yeplastiki yePVC, iipleyiti, iiprofayili kunye neefilim, kwaye zizinziso zobushushu zePVC ngokuthambisa okulungileyo kunye nokukhanya okulungileyo nokuzinza kobushushu.

I-Mono- okanye i-polyol esters ye-stearic acid ingasetyenziselwa izinto zokuthambisa, i-non-ionic surfactants, iiplastiki kunye nokunye. Ityuwa yayo yesinyithi yealkali iyanyibilika emanzini kwaye yenye yezona nxalenye ziphambili zesepha, ngelixa ezinye iityuwa zetsimbi zingasetyenziswa njengezinto zokugxotha amanzi, izithambiso, izibulali-fungi, izongezo zepeyinti kunye nezizinzisi zePVC.

Indima ye-asidi ye-stearic kwizinto ze-polymeric iboniswa ngamandla ayo okuphucula ukuzinza kwe-thermal. Izixhobo zePolymer zithande ukuthotywa kunye ne-oxidation ngexesha lokulungiswa kobushushu obuphezulu, okukhokelela ekwehleni kokusebenza. Ukongezwa kwe-asidi ye-stearic kunokunciphisa ngokufanelekileyo le nkqubo yokuthotywa kunye nokunciphisa ukuphulwa kwamaketanga eemolekyuli, ngaloo ndlela ukwandisa ubomi benkonzo yezinto. Oku kubaluleke kakhulu ekwenziweni kweemveliso ezixhathisa ubushushu obuphezulu ezifana nokugquma ucingo kunye nezixhobo zemoto.

Iasidi yeStearic ineempawu ezibalaseleyo zokuthambisa njengesithambiso. Kwizinto zepolymer, i-asidi ye-stearic inciphisa ukungqubuzana phakathi kwamaketanga eemolekyuli, ivumela ukuba izinto zihambe ngokulula, ngaloo ndlela ziphucula ukusebenza kakuhle kwenkqubo. Oku kuluncedo kakhulu kwiinkqubo zemveliso ezifana nokubumba inaliti, i-extrusion kunye ne-calendering.

I-asidi ye-Stearic ibonisa i-plasticiser effect kwi-polymeric materials, inyusa ukuthamba kunye nokulula kwezinto. Oku kwenza ukuba izinto zibe lula ukubumba kwiimilo ezahlukeneyo, kubandakanywa iifilimu, iityhubhu kunye neeprofayili. Impembelelo yeplastiki ye-stearic acid ihlala isetyenziswa kwimveliso yeplastiki yokupakisha, iingxowa zeplastiki kunye nezikhongozeli zeplastiki.

Izinto zePolymeric zihlala zixhomekeke ekufunxeni kwamanzi, ezinokuthobisa iipropati zazo kwaye zibangele ukubola. Ukongezwa kwe-asidi ye-stearic kuphucula ukuchithwa kwamanzi kwizinto eziphathekayo, ukuvumela ukuba kuhlale kuzinzile kwiindawo ezimanzi. Oku kubaluleke kakhulu kwimimandla efana neemveliso zangaphandle, izixhobo zokwakha kunye nezindlu zezixhobo zombane.

I-asidi ye-Stearic inceda ukunciphisa utshintsho lombala wezinto ze-polymeric kwi-UV kunye neendawo ezishisayo. Oku kubalulekile ekwenziweni kweemveliso ezizinzile zombala ezifana neebhodi zangaphandle, iinxalenye zemoto zangaphakathi kunye nefenitshala yangaphandle.

I-asidi ye-Stearic isebenza njenge-anti-adhesive kunye ne-flow aid kwizinto ze-polymeric. Iyanciphisa ukunamathela phakathi kweeamolekyu kwaye yenza ukuba izinto zihambe ngokulula ngakumbi, ngakumbi ngexesha lenkqubo yokubumba inaliti. Oku kuphucula imveliso kunye nokunciphisa iziphene kwimveliso.

Iasidi yeStearic isetyenziswa njenge-anti-caking agent kwi-compound yemveliso yesichumisi ukuqinisekisa ukusasazwa okufanayo kwamasuntswana achumisa. Oku kunceda ekuphuculeni umgangatho kunye nokufana kwesichumisi kwaye kuqinisekisa ukuba izityalo zifumana izondlo ezifanelekileyo.

I-asidi ye-Stearic isetyenziswa kwiindidi ezahlukeneyo zemveliso kunye nabathengi.