Uxinaniso olubonakalayo lubhekisa kumlinganiselo wobunzima bezinto kumthamo wayo obonakalayo. Umthamo obonakalayo ngowona mthamo kunye nomthamo wepore ovaliweyo. Ibhekisa kumlinganiselo wesithuba esithathwe yimathiriyeli phantsi kwentshukumo yamandla angaphandle kubunzima bezinto eziphathekayo, edla ngokubonakaliswa ngeekhilogram ngecubic meter nganye (kg/m³). Ingabonakalisa i-porosity, ukuqina, ukuqina kunye nezinye iimpawu zezinto eziphathekayo. Kwizinto eziphathekayo ezinemilo eqhelekileyo, umthamo unokulinganiswa ngokuthe ngqo; kwizinto eziphathekayo ezinemilo engaqhelekanga, ii-pores zinokutywinwa ngokutywinwa kwe-wax, kwaye ke umthamo unokulinganiswa ngokukhupha amanzi. Ubuninzi obubonakalayo ngokuqhelekileyo bulinganiswa kwimeko yendalo yezinto eziphathekayo, oko kukuthi, imeko eyomileyo egcinwe emoyeni ixesha elide. Kwizinto zerabha ezinogwebu kunye neplastiki yokugquma, umyinge wamaqamu eeseli ezivaliweyo ukuya kwirubha kunye nezixhobo zeplastiki ziyahluka, kwaye kukho uluhlu loxinaniso olunomgangatho ophantsi we-thermal conductivity.
I-porosity ephezulu inokugquma ngokufanelekileyo; kodwa ukuxinana okuphantsi kakhulu kunokukhokelela ngokulula kwi-deformation kunye nokuqhekeka. Ngexesha elifanayo, amandla oxinzelelo ayanda ngokunyuka kobuninzi, ukuqinisekisa ukuzinza kwexesha elide lezinto eziphathekayo. Ngokubhekiselele kwi-thermal conductivity, encinci encinci, i-conductivity ephantsi ye-thermal kunye ne-insulation engcono ye-thermal; kodwa ukuba ukuxinana kuphezulu kakhulu, ukunyuka kokushisa kwangaphakathi kuyanda kwaye umphumo we-thermal insulation uyancipha. Ke ngoko, xa ukhetha izinto zokufakelwa kwe-thermal, kuyimfuneko ukuqwalasela ngokubanzi ukuxinana kwabo okubonakalayo ukuze kuqinisekiswe ukuba iipropathi ezahlukeneyo zilungelelene ukuhlangabezana neemfuno zemeko ezahlukeneyo zokusetyenziswa.
Ubuninzi bobuninzi bubhekisa kubuninzi bezinto ngokwazo, oko kukuthi, umlinganiselo wesithuba esithathwe yinto kubunzima bayo. Kwimathiriyeli yokugquma kwe-thermal, ngokuqhelekileyo ibhekisa kumlinganiselo womoya wepore wangaphakathi kunye nobunzima bokwenene ngeyunithi yomthamo, ebonakaliswa ngeekhilogram nge-cubic meter nganye (kg/m³). Ngokufana nokuxinana okubonakalayo, ubuninzi bobuninzi bukwayenye yeeparameters ezibalulekileyo zokuvavanya ukusebenza kwezixhobo zokugquma i-thermal, ezinokuthi zibonise ubunzima, ukuxutywa kwamanzi, ukugquma kwe-thermal kunye nezinye iimpawu zezinto eziphathekayo.
Ke ngoko, nangona zombini ingxinano kunye nokuxinana kwesambuku kubonisa ukuxinana kunye ne-porosity yezixhobo zokugquma i-thermal, banomahluko ocacileyo:
1. Iintsingiselo ezahlukeneyo
Ubuninzi obubonakalayo bezinto zokugquma i-thermal kuvavanya ubukhulu becala iipropati zezinto ezifana ne-porosity kunye ne-elasticity, kwaye zinokubonisa ubudlelwane obulinganayo phakathi komoya kunye nobunzima bokwenene ngaphakathi kwempahla.
Ubuninzi bobuninzi bubhekisa kubuninzi bezinto zokugquma ngokwayo, kwaye akubandakanyi naziphi na iimpawu zesakhiwo sangaphakathi.
2. Iindlela zokubala ezahlukeneyo
Ubuninzi obubonakalayo bezinto zokugquma ngokuqhelekileyo zibalwa ngokulinganisa ubunzima kunye nomthamo wesampulu, ngelixa ubuninzi be-bulk density bubalwa ngokulinganisa ubunzima besampulu yezinto ezibonakalayo zomthamo owaziwayo.
3. Kusenokubakho iimpazamo
Ekubeni ukubalwa koxinaniso olubonakalayo lwezinto zokugquma kusekelwe kumthamo othathwe isampuli ecinezelweyo, ayikwazi ukumela kakuhle isakhiwo esipheleleyo sezinto eziphathekayo. Ngexesha elifanayo, xa kukho i-cavities okanye into yangaphandle ngaphakathi kwezinto eziphathekayo, ukubalwa koxinaniso olubonakalayo lunokuba neempazamo. Ubuninzi bobuninzi abanazo ezi ngxaki kwaye zinokubonisa ngokuchanekileyo ubuninzi kunye nobunzima bezinto zokugquma.
Indlela yokulinganisa
Indlela yokufuduswa: Kwimathiriyeli enemilo eqhelekileyo, umthamo unokulinganiswa ngokuthe ngqo; kwizixhobo ezinemilo engaqhelekanga, iipores zinokutywinwa ngendlela yokutywinwa kwe-wax, kwaye ke umthamo unokulinganiswa kunye nendlela yokufuduka.
Indlela yePycnometer: Kwezinye izinto, njengezinto zekhabhoni, indlela yepycnometer ingasetyenziswa, kunye ne-toluene okanye i-n-butanol njengesisombululo esiqhelekileyo sokulinganisa, okanye indlela ye-gas medium displacement ingasetyenziselwa ukuzalisa i-micropores nge-helium ide iphantse ingabikho i-adsorbed.
Iindawo zesicelo
Uxinaniso olubonakalayo lunoluhlu olubanzi lwezicelo kwisayensi yezinto. Ngokomzekelo, kwi-rubber ye-foam eguquguqukayo kunye neemveliso zokufakelwa kweplastiki, injongo ephambili yovavanyo olubonakalayo loxinaniso kukuvavanya ukusebenza kwayo koxinaniso kunye nokuqinisekisa ukuba ukufakwa kwe-thermal kunye neempawu zomatshini zihambelana nemigangatho. Ukongeza, ukuxinana okubonakalayo kukwasetyenziselwa ukuvavanya iipropathi ezibonakalayo zemathiriyeli kunye nokusebenza kwemathiriyeli kwizicelo zobunjineli.
Ukuba ukuxinana kuyanyuka kwaye irabha kunye nezixhobo zeplastiki zonyuka, amandla ezinto eziphathekayo kunye nexabiso lerenti emanzi inokunyuka, kodwa ukuqhutyelwa kwe-thermal kuya kwanda ngokuqinisekileyo kwaye ukusebenza kwe-thermal insulation kuya kuhla. I-Kingflex ifumana i-balance balance point kubudlelwane obunokuthintela phakathi kwe-conductivity ephantsi ye-thermal, eyona nto iphakamileyo yerenti emanzi, eyona nto ifanelekileyo ebonakalayo yoxinano kunye namandla okukrazula, oko kukuthi, ubuninzi obuphezulu.
Ixesha lokuposa: Jan-18-2025
