Thermal conductivity o polystyrene, hiʻona a me ka mea mānoanoa

Ke thermal conductivity o ka polystyrene hua o kekahi o ka mea nui ano e i hoihoi i ka 'Oihana i wale akā, i nā mea kūʻai mai maʻamau. Keia mea ua i kapaʻia he thermal'īpale hua, a i mea 98% o ka lewa. He ua hoopaaia ma ka polystyrene hua keena.

Ke 'ole ka pono maluhia no ola, no laila, ua hoʻohana' ia o ka mea no ka hana o ka meaʻai'ōpala. He mea oluolu i ka hana, ka mea, ua loaʻa kona he ākea ma ke kukulu hana, a ua hoi mai me ka haʻahaʻa kāki.

He aha oe e ike e pili ana i ka hoʻonui polystyrene thermal conductivity

Thermal conductivity o ka polystyrene ka loa haʻahaʻa, no ka ke ea i ka ke kumu i nā puke i loaʻa kēia mau 'ano. No laila, ka mea i ho'ākāka 'ia aiao o ka hoʻokaʻawale loli aʻe mai ka 0,037 a hiki i 0,043 W /'āina, e like me ka pili ana i ka lewa, keia ano o 0,027Vt /'āina.

hua mai la i hoomaka polystyrene ua like me GOST 15588-86 a mai kaʻoi loa mālama, mahuahua ka hua'ōlelo o ka hana, ua hiki ke ho'ēmi i paio hahana maoli nō na koina, a hoʻopale ai mai ke kūpaleʻana. Mau waiwai i malamaia i ka wā paku ole ia i haʻahaʻa ana wela a me ka kiʻekiʻe humidity, nae e hoʻohana polystyrene e hiki ma lalo o waho pūnaewele makahiki, e like me ka pono me ia ma ka refrigeration manao.

Ke thermal conductivity o ka polystyrene mea haʻahaʻa, no laila, i ka hana o kēia mea hiki ia,ʻaʻole wale no wahi lulu akā, no hoi no ka paia waho hoʻopau. Naʻe, i kēia hiʻona E oko a ke kaumaha ma muli o ka pa apŘ. Ke kiekie ae ia mea, o ka mea kiekie oia ka styrene maʻiʻo, ka polystyrene Ua nahae aua wela. No ka laʻana, ma ka hihia o extruded polystyrene hua, kona thermal conductivity e ia 0,028Vt /'āina, no ka mea, styrene granules ma keia hihia i loko o ka hookahi kuina 'ole, e like me ka ole nahā i therebetween.

Hoʻohālike o thermal conductivity i loko o kekahi lama i

No ka like, e hiki ke ike mau ahi o ka polystyrene, nuʻa a me ka thermal conductivity mea ÿokoÿa. Nuʻa PSB-C15 ka emi o 15 kg / ka m ^3, oiai o ka palena o ka thermal conductivity mea mai 0.07-0.08 W /'āina. Me ka pili ana i ka hao PSB-C35, kona pa apŘ mea like i ka palena o 25,1 i 35 kg / ka m ^3, oiai ka thermal conductivity mea 0.038 W /'āina. Ke kuai hiki e ike hou a me ka extruded polystyrene hua. Ka momoku ahi 35 nuʻa loli aʻe mai ka 33 a hiki i 38, akā, i ka thermal conductivity like me 0,03.

Inā mua oe hoailona 45, ka mua aiao E ĸokoĸa ana nä pane mai 38,1 hiki i 45, akā, i ka lua o ka mea like me 0,032. Thermal conductivity o ka polystyrene mea nui lower like me keia ano hoʻomaopop 'ana i nā pono hana. No ka laʻana, hoomaka lepo ma ka pa apŘ o 1200 kg / m + ³ i ka thermal conductivity like me 0,58.

Ke kapakai a ka thermal conductivity o polystyrene a me nā pono hana

Ma na kihapai o ka hana a me ka? Ieoaeunoai hoomaka polystyrene hoʻohana i kēia lā. Ke thermal conductivity, ka hoʻohālike o ka mea e e'ōleloʻia ma lalo nei, meaʻano haʻahaʻa ma keia hihia. Akā, ma ka mea pōhaku hulu keia ano loli aʻe mai 0,07 i 0.08 W /'āina. Like no ka pōhaku puna, ka mea thermal conductivity ka mea, ua like ia 1,30, oiai ka pōhaku puna - 2,04.

Lightweight hoʻopiha a me ka hua wehewehe aku ma ka thermal conductivity like ia 0,58 a 0,37, kekahi me kekahi. Mākou hoomaka polystyrene, no ka nane, i ka thermal conductivity o 0,028Vt /'āina. Ke thermal conductivity o polystyrene hua, a hoi loa pinepine ana hoʻohālike. Ma ka hihia mua, ua nui ua 0,07, ma ka hihia o ka papa.

Key hiʻona: palekana, soundproofing a me ka windproof ano

Hoomaka polystyrene mea pakele, a me 'oe ke hana ia hou. I ka Ia manawa i ke kaiapuni, e paka 'Aʻohe hoʻomehana honua. E like me ka noiʻi, i loko o nā hale o ka polystyrene, styrene uaʻaʻole i loaʻa pilikia loa. Like no ka soundproofing, a me ka windshield, laila, hoʻohana Styrofoam mea,ʻaʻole e pono i pili i nā mea i ka hōʻoi 'ka windproof kuleana pili i a me ka soundproofing.

Inā ke kani-o ke kemu ioeaie e e hooikaika, pono e hoonuiia ka mānoanoa o ka mea, ahu iho. Ke thermal conductivity o XPS oe ua ike, akā, i kēia mea - mea ole ka mea wale ano, a e ike mua ke kūʻaiʻana i kēia mea. No ka laʻana, polystyrene mea ole hygroscopic, nolaila, ia aole i ka hoʻokemu ka wai a me ka ona mau, aole ia i hu nui ae la me ka hana ole ino, a aole i hoike mai i loko o ka wai. I ka waiho i loko o ka wai hoomaka polystyrene, ka mea e komo iloko o ka 'ole, 3 wale% o ke kaupaona papa, oiai o ka waiwai o ka mea i koe ua hoʻololiʻia.

Ka mahu a me ka wai e 'ano oluolu e hele mai o ka poepoe Styrofoam, no laila, pono e lawe malama, e pale aku i ke kahua o ka condensation. E hana i kēia, i ka manao rula i ua mahaloia. Ona mau ia'ku polystyrene e leie aku e hana ia i loko o 'īpale o ka hookumu ana, ma ka inevitable hui 'ana me ka lepo mea.

Additional helehelena: liluwelo a me ka Nine Inch inertness

'īpale hua papa, i mea i haiia ae maluna, thermal conductivity, Ua eii? E Nine Inch a me liluwelo aʻe. e malama i ka waiwai o ka mea, a hiki ina kona 'ole e e loli:

• ke kopa pāʻoihana;
• ʻakika;
• ka paʻakai pāʻoihana ma 'ano moana wai;
• ke loloʻa konohiki;
• ammonia;
• gypsum;
• wai-wailana kalameaʻai;
• lina pāʻoihana;
• Lime;
• lepo pipili no hoi.

Like no kaʻakika, laila, ma ka hoomaka polystyrene E ole e loli ma nitricʻakika a me kia aceticʻakika. Ma mea hoʻonoho E pale komo i ka mea rodents a me ka manawa, no ka mea, ka mea hiki i poino i ka 'ole. Ma lalo o ka aoao o ka pōhaku puna pāʻoihana i hapa 'ia' disintegrate i ka mea i paku ole ia i ke aloha nā'uheheʻe. Kumupaʻa ke hoʻoholo i ka lākiō o ka hamama a me ka paʻa ili, ke kaumaha ma muli o ka hao a me ka 'ano o ka'īpale.

Ke ahi-polystyrene

kaʻi lau waiwai o thermal conductivity o ka hoomaka polystyrene i hōʻikeʻia aʻela ma luna, akā, ia mea nui, e ike hou aku e pili ana i ke ahi p ÷ ino mea i mea combustible, akā, ka mea, he maikai ke ahi ia'ku, no ka mea, ke ola auto-mea hō'ā kaʻa ka mahana o 4910 ° C. Inā he hoʻohālike o keia anakahi me ka wahie, ka mea, he 1.8 mau manawa kiekie ae, no ka mea, o ka wahie, e e lawa wale 2600 ° C.

Flammability, a me ka hiki i ka paha wela

Inā i ke ahi, e ia mai no ka 4 kekona, o ka lako o ka hoʻoponopono-pulu ka. Ma ka'ā kaʻina hana e paha wela'īpale i loko o ka buke o ka 1000 MJ / ka m ^3, a me ka nānā 'ole i ka lāʻau, i ka huahelu papa koa, mai 7000 a hiki i 8000 MJ / ka m ^3, i kēia Hōʻike i ka mea haʻahaʻa i'ā polystyrene ka mahana makemake ia. Ma kuai i kēia lā hiki ke loaʻa ka hoʻoponopono-kinai pū Hoʻonui i ka pono polystyrene, a ua hua mai la i ka hou o ka lapalapa ahi retardants. Akā, ma manawa, ua nalowale ke kanawai, a me ka mea e pili ana i ka pae ana o combustibility T2, e ho'ōla e häʻawi mai ai iä Class T4.

Ka mānoanoa o ka polystyrene

Hoomaka polystyrene, thermal conductivity, ka mānoanoa o ka a au ë he mähele wale no ina e manao e kuai i keia'īpale ua hua mai la i keia la ma kekahi Manufacturers. Ka pepa hiki ke kaupalena 'ia ma mānoanoa ma ka laulā mai ka 20 mm o ke 20 knm, naʻe, he nui nā mea kūʻai mai e noi ana i kuina mea maikaʻi e koho. No ka hoʻoholo 'ana i kēia nui, e pono e ninau aku, i mea ka ia'ku i ka wela hoololi. Eia na mea a pau e hilinaʻi ma luna o ka'āina o ka māhele 'āina. No ka laʻana, pono e like me 4,15 m + ² ° C / W i ka piko o Moscow i loko o ka ia'ku o ka pa, me ka pili ana i ka hema wahi, ma laila e e lawa o 2.8 ^m2 ° C / Watt.