Kuyesedwa kwa zinthu zakutali za infrared za nsalu

Ogula akagula zovala zotentha nthawi yachisanu, nthawi zambiri amakumana ndi mawu oti: "Kutentha kwakutali kwa infrared", "khungu lotentha kwambiri la infrared", "Far infrared limatenthetsa", ndi zina zotero. Kodi "kutalika kwa infrared" kumatanthauza chiyani? ntchito? Momwe mungachitirezindikiranikaya nsalu ili nayombali-infrared katundu?

Kodi ma infrared ndi chiyani?

Mafunde a infrared ndi mtundu wa mafunde a kuwala omwe utali wake ndi waufupi kuposa mafunde a wailesi komanso wautali kuposa kuwala kowoneka. Kuwala kwa infrared sikuwoneka ndi maso. Kutalika kwa mawonekedwe a kuwala kwa infrared ndikotambasula kwambiri. Anthu amagawanitsa kuwala kwa infrared m'magawo osiyanasiyana akutali kukhala pafupi ndi infrared, mid-infrared ndi far-infrared. Ma cheza a infrared ali ndi mphamvu yolowera komanso yowunikira kwambiri, ndipo amakhala ndi mphamvu yowongolera kutentha komanso kutulutsa kwa resonance. Amatengeka mosavuta ndi zinthu ndikusandulika kukhala mphamvu ya mkati mwa zinthuzo.

Kodi mungadziwe bwanji ngati nsalu zili ndi mawonekedwe akutali?

GB/T 30127-2013"Kuzindikira ndi Kuwunika kwa Zovala za Far-Infrared" zimagwiritsa ntchito zinthu ziwiri za "kutalika kwa infrared emissivity" ndi "kutentha kwa kutentha kwa ma radiation akutali" kuti awone ngati nsalu zili ndi zinthu zakutali.

Kutulutsa kwakutali kwa infrared ndiko kuyika mbale yakuda yakuda ndi chitsanzo pa mbale yotentha imodzi ndi ina, ndikusintha kutentha kwapamwamba kwa mbale yotentha motsatizana kuti ifike kutentha komwe kumatchulidwa; mtundu wakuda wakuda umayezedwa padera pogwiritsa ntchito njira yoyezera ma radiation yakutali yokhala ndi mawonekedwe owoneka bwino omwe amaphimba gulu la 5 μm ~ 14 μm. The poizoniyu mwamphamvu pambuyo mbale ndi chitsanzo ataphimbidwa pa mbale otentha kufika bata, ndi kutali infuraredi emissivity chitsanzo amawerengeredwa ndi kuwerengetsa chiŵerengero cha mphamvu poizoniyu chitsanzo ndi muyezo blackbody mbale.

Kuyeza kwa kukwera kwa kutentha ndikuyesa kukwera kwa kutentha pamwamba pa kuyesa kwachitsanzo pambuyo poti gwero lakutali la infrared likuwunikira chitsanzocho ndi mphamvu yamagetsi yosalekeza kwa nthawi inayake.

Ndi nsalu zotani zomwe zingayesedwe kuti zili ndi mawonekedwe akutali?

Kwa zitsanzo zambiri, ngati kutulutsa kwakutali kwachitsanzo sikuchepera 0.88, komanso kutentha kwakutali kwa kutentha sikuchepera 1.4 ° C, chitsanzocho chimakhala ndi zinthu zakutali.

Kwa zitsanzo zotayirira monga ma flakes, nonwovens, ndi milu, kutulutsa kwakutali kwa infrared sikuchepera 0.83, ndipo kutentha kwakutali kwa radiation sikuchepera 1.7 ° C. Chitsanzocho chili ndi mawonekedwe akutali-infrared.

Ndizofunikira kudziwa kuti kuchapa kangapo kumakhalanso ndi vuto linalake pakuchita kwakutali kwa infrared. Ngati pamwambazofunika indexakadali anakumana pambuyo kutsuka angapo, chitsanzo amaonedwa kuti mankhwala ndiosasambantchito yakutali infrared.