Ukuminyana okubonakalayo kubhekisela esilinganisweni sesisindo sento kuvolumu yayo ebonakalayo. Ivolumu ebonakalayo ivolumu yangempela kanye nevolumu yembotshana evaliwe. Kubhekiselwa esilinganisweni sesikhala esithathwe yinto engaphansi kwesenzo samandla angaphandle kuya kusisindo sento, ngokuvamile evezwa ngamakhilogremu nge-cubic meter ngayinye (kg/m³). Ingabonisa i-porosity, ubulukhuni, ukunwebeka kanye nezinye izakhiwo zezinto ezibonakalayo. Ngezinto zokwakha ezinobunjwa obujwayelekile, umthamo ungalinganiswa ngokuqondile; ngezinto zokwakha ezinobunjwa obungajwayelekile, ama-pores angavalwa ngokuvalwa kwe-wax, bese umthamo ungalinganiswa ngokukhipha amanzi. Ubuningi obubonakalayo buvame ukulinganiswa esimweni semvelo sezinto ezibonakalayo, okungukuthi, isimo esomile esigcinwe emoyeni isikhathi eside. Kuzinto zenjoloba enegwebu nezinto zokufakwa kwepulasitiki, isilinganiso samabhamuza amaseli avaliwe kuya kwerabha nezingxenye zepulasitiki kuyahlukahluka, futhi kukhona ibanga lokuminyana eline-thermal conductivity ephansi kakhulu.
I-porosity ephezulu ingafaka ngokuphumelelayo; kodwa ukuminyana okuphansi kakhulu kungaholela kalula ekuguqukeni nasekuqhekekeni. Ngesikhathi esifanayo, amandla okucindezela akhuphuka ngokunyuka kokuqina, okuqinisekisa ukuzinza kwesikhathi eside kwezinto. Ngokuphathelene ne-thermal conductivity, i-density encane, i-conductivity ephansi ye-thermal kanye ne-insulation engcono yokushisa; kodwa uma ukuminyana kuphezulu kakhulu, ukudluliswa kokushisa kwangaphakathi kuyanda futhi umphumela wokushisa oshisayo uyancipha. Ngakho-ke, lapho kukhethwa izinto zokufakelwa ezishisayo, kuyadingeka ukuthi kubhekwe kabanzi ukuminyana kwazo okubonakalayo ukuze kuqinisekiswe ukuthi izakhiwo ezihlukahlukene ziyalingana ukuze kuhlangatshezwane nezidingo zezimo ezihlukene zokusetshenziswa.
Ukuminyana ngobuningi kubhekisela ekumineni kwento ngokwayo, okungukuthi, isilinganiso sesikhala esithathwe into nesisindo sayo. Ezintweni zokufaka ezishisayo, ngokuvamile kubhekiselwa esilinganisweni somoya wembotshana wangaphakathi kanye nesisindo sangempela ngevolumu yeyunithi, evezwa ngamakhilogremu nge-cubic meter ngayinye (kg/m³). Ngokufana nokuminyana okubonakalayo, ukuminyana kwenqwaba nakho kungenye yemingcele ebalulekile yokuhlola ukusebenza kwezinto zokufakwa ezishisayo, ngokuvamile ezingabonisa isisindo, ukumuncwa kwamanzi, ukufakwa kwe-thermal nezinye izici zento.
Ngakho-ke, nakuba kokubili ukuminyana okusobala kanye nokuminyana ngobuningi kubonisa ukuminyana kanye ne-porosity yezinto zokufakwa ezishisayo, kunomehluko osobala:
1. Izincazelo ezahlukene
Ukuminyana okusobala kwezinto zokuvikela ezishisayo kuhlola ikakhulukazi izici zento efana ne-porosity nokunwebeka, futhi kungabonisa ubudlelwano obulinganayo phakathi komoya nesisindo sangempela ngaphakathi kwento.
Ukuminyana ngobuningi kubhekisela ekumineni kwezinto ezifakwayo ngokwayo, futhi akubandakanyi noma yiziphi izici zesakhiwo sangaphakathi.
2. Izindlela zokubala ezihlukene
Ukuminyana okubonakalayo kwezinto zokufakelwa kuvame ukubalwa ngokulinganisa ubukhulu nevolumu yesampula, kuyilapho ukuminyana kwenqwaba kubalwa ngokulinganisa isisindo sesampula yezinto ezibonakalayo zevolumu eyaziwayo.
3. Kungase kube namaphutha
Njengoba ukubalwa kokuminyana okubonakalayo kwezinto zokufakwa kusekelwe kumthamo othathwe isampula elicindezelwe, akukwazi ukumela kahle ukwakheka okuphelele kwezinto. Ngesikhathi esifanayo, lapho kukhona izimbotshana noma izinto zangaphandle ngaphakathi kwento, ukubalwa kokuminyana okubonakalayo kungase kube namaphutha. Ukuminyana ngobuningi akunazo lezi zinkinga futhi kungabonisa ngokunembile ukuminyana nesisindo sempahla yokufaka.
Indlela yokulinganisa
Indlela yokugudluza: Ezisetshenziswa ezinobumo obujwayelekile, ivolumu ingakalwa ngokuqondile; ngezinto zokwakha ezinomumo ongajwayelekile, izimbotshana zingavalwa ngendlela yokuvala i-wax, bese ivolumu ingakalwa ngendlela yokususa.
Indlela ye-pycnometer: Kwezinye izinto, njengezinto zekhabhoni, indlela ye-pycnometer ingasetshenziswa, ne-toluene noma i-n-butanol njengesixazululo esijwayelekile sokulinganisa, noma indlela yokususa igesi ephakathi nendawo ingasetshenziswa ukugcwalisa ama-micropores nge-helium kuze kube yilapho isiphelile. cishe ayisekho i-adsorbed.
Izindawo zokufaka izicelo
Ukuminyana okubonakalayo kunezinhlobonhlobo zezicelo kusayensi yezinto. Isibonelo, emikhiqizweni yenjoloba eyigwebu eguquguqukayo kanye nemikhiqizo yokufakwa kwepulasitiki, inhloso eyinhloko yokuhlolwa kokuminyana okubonakalayo ukuhlola ukusebenza kwayo kokuminyana kanye nokuqinisekisa ukuthi ukwahlukanisa kwayo okushisayo nezici zemishini ziyahlangabezana nezindinganiso. Ngaphezu kwalokho, ukuminyana okubonakalayo kubuye kusetshenziselwe ukuhlola izakhiwo ezibonakalayo zezinto zokwakha kanye nokusebenza kwezinto ezisetshenziswayo ezinhlelweni zobunjiniyela.
Uma ukuminyana kukhula futhi izingxenye zerabha nepulasitiki zikhuphuka, amandla wento esebenzayo kanye nesici sokuqasha esimanzi singakhuphuka, kodwa ukuqhutshwa kwe-thermal kuzokwenyuka nakanjani futhi ukusebenza kokufakwa kwe-thermal kuzokonakala. I-Kingflex ithola iphoyinti eliphelele lebhalansi ebudlelwaneni obunomkhawulo phakathi kwe-thermal conductivity ephansi, into ephezulu yokuqasha emanzi, ukuminyana okubonakalayo okufaneleka kakhulu namandla okudabula, okungukuthi, ukuminyana okuphelele.
Isikhathi sokuthumela: Jan-18-2025
