Nyob rau hauv daim teb ntawm cov roj thiab cov pa roj kev tshawb nrhiav, ua kom cov dav hlau sib dhos ib ntus ua si lub luag haujlwm tseem ceeb. Tshwj xeeb tshaj yog nyob rau hauv lub tig-ncig ntawm kev thaiv kev siv thev naus laus zis, nws tuaj yeem ua tiav cov kev thaiv ib ntus, yog li tsim cov kev cai zoo rau cov haujlwm ua haujlwm tom qab.
Cov neeg sawv cev sib txuas ib ntus tau muab faib ua cov dej-soluble thiab cov roj-soluble hom hauv kev lag luam. Ntawm lawv, dej-soluble ib ntus cov neeg sawv cev ib ntus tau dhau los ua cov ntsiab lus vim lawv cov kev siv dav dav hauv ntau txoj kev tsim kho. Muaj ntau hom lawv, xws li hais, pellets, thiab gel ntsaws thiab lawv cov khoom sib txuas. Cov tshuaj lom neeg muaj pes tsawg leeg suav nrog ntau tus ntoo khaub lig-txuas lossis tsis-hla-txuas polymer polymers.
Tam sim no, cov ntaub ntawv degradable nyob rau hauv kev ua lag luam yog feem ntau cov ntaub ntawv acid (PBat), thiab lwm yam Cov ntaub ntawv no tuaj yeem ua tiav cov khoom lag luam thiab cov khoom lag luam fracturing thiab cov khoom lag luam.
Txawm li cas los xij, kev tshawb fawb qhia tau hais tias tom qab lub sijhawm ntsaws ib ntus ua tiav, nws yog qhov nyuaj rau cov neeg sawv cev sib zog ib ntus kom tshem tawm thiab yuav muaj cov seem. Qhov no yuav mus tas li txo qhov kev tsim cov kev tsim tawm. Muaj qee kis, tus tsim kev sib sau ua ke tuaj yeem txo los ntawm -5% rau {1}}%. Cov neeg ua haujlwm sib txuas lus ib ntus lossis cov kws tshawb nrhiav feem ntau txiav txim siab ua solubility uas yog qhov ua tau zoo dua qhov pom ntawm kev pom zoo thiab kev siv. Lawv tsis kawm txog cov tshuaj tiv thaiv kawg nrog dej los ntawm kev pom ntawm cov kev siv tshuaj chemistry thiab kev siv. Piv txwv li, los ntawm kev sib xyaw sib xyaw ua ke cov neeg ua kom muaj kev sib tw ntawm kev sib tw ntawm 20 degree, 40 degree, 60 teev rau 8 teev thiab 16 teev.
Polyglycolic acid (PGA) raws li cov khoom tshiab muaj qhov zoo tshwj xeeb. Nws muaj cov khoom zoo. Lub zog tensile thiab khoov rau lub zog zoo dua li cov kev tso cai engineing engineing engineing xws li Pek, thiab pom. Nws yog cov khoom lag luam zoo tsim kho thiab tau siv dav siv los ua kom muaj zog ntawm cov cuab yeej tsis yog xim hlau. Cov pob txha pob zeb thiab choj plugs tsim los ntawm nws tuaj yeem ua kom tau raws li cov kabmob siab - cov kabmob ntawm 70 MPa thiab saum toj no. Tseem ceeb tshaj, pga muaj qhov tsis zoo thiab tsis tas yuav muaj Mineralization degree. Nws tsis cuam tshuam los ntawm kev sib haum xeeb ntawm qhov nruab nrab thiab muaj tib qho kev pheej hmoo hauv dej ntshiab thiab ntau yam dej ntsev. Tshwj xeeb, nws tsis cuam tshuam los ntawm ntau yam tshuaj ntxiv cov tshuaj ntxiv hauv tib cov kua.
Tam sim no, nyob rau hauv lub tuam txhab Asmeskas kev ua lag luam thiab Kreha lub tuam txhab feem ntau muaj peev xwm muab cov khoom siv PGA muaj peev xwm muab cov khoom siv PGA thiab cov choj ntsaws. Cov ntaub ntawv raw tag nrho los ntawm Krea Company. PA ib ntus kev ntsaws cov khoom muag pom zoo los ntawm Kueha lub tuam txhab tau ua rau cov khoom siv fiber thiab particle. Txawm li cas los xij, vim ntau yam muaj peev xwm ua tau thiab raug nqi ib ntus kev ntsaws cov neeg sawv cev tsis tau siv dav hauv kev ua lag luam thiab tsis tau siv dav. Piv nrog pla (mas muaj ntau yam khoom), kev siv cov khoom lag luam zoo li no. Ntawm no, nws yog hu ua nyob rau hauv Suav tsim khoom los nthuav cov khoom siv ntau lawm ntawm kev ua tau zoo ntawm fracturing cov neeg ua haujlwm ib ntus thaum txo tus nqi. Tsuas yog tom qab cov tuam txhab Suav teb cov ntsiab lus thiab cov khoom lag luam yuav ua tau zoo thiab ua tiav cov khoom siv sib txawv zoo ib ntus rau cov roj thiab cov pa roj kev tshawb nrhiav teb.
Ib qho ntxiv, hauv daim ntawv thov ntsaws cov neeg ua haujlwm ib ntus, Knot Stacklging Cov neeg sawv cev thiab ntsaws cov khoom muaj kuj sib xws. Pob caus lub zog ntsaws cov neeg sawv cev ib ntus tuaj yeem ua tiav cov kev cuam tshuam ib ntus los ntawm kev tsim tshwj xeeb thiab kev ua haujlwm; Plugging pob tuaj yeem muab cov kev thaiv ntawm cov chaw tshwj xeeb kom ntseeg tau tias kev ua haujlwm du ntawm cov haujlwm.