Thermal conductivity pamusoro polystyrene, zvinhu uye zvinhu ukobvu

The chafariz conductivity pamusoro polystyrene furo ndeimwe zvinokosha unhu kuti vanofarira kwete chete nyanzvi asiwo munhuwo vatengi. Izvi zvinhu anonziwo kumbogadzirwa kuti mudziye furo uye inova 98% dzedenga. Ari mujeri muna polystyrene furo masero.

The Chimiro yakachengeteka zvakakwana utano, saka mashoko rinoshandiswa nokuda kwezvifananidzo zvaAtemisi chikafu kavha. Iye nyore kushanda, yava kuwanikwa kwayo kwakapararira pakuvaka indasitiri, uye anewo pasi mari.

Zvaunofanira kuziva pamusoro rakawedzerwa polystyrene chafariz conductivity

Thermal conductivity kuti polystyrene rakanyatsojeka yakaderera, sezvo mhepo kutorwa mashoko anewo unhu izvi. Naizvozvo, zvinorondedzerwa parameter woga zvichisiyana 0,037 kusvika 0,043 W / Mk, vasingatenderwi mhepo, zvinoita uyu 0,027Vt / Mk.

Rakawedzerwa polystyrene anogadzirwa maererano GOST 15588-86 uye ane kuchengetedza wakanaka, kuwedzera mashoko oparesheni, anokwanisa kuderedza kudziyisa mari uye kudzivirira kubva oma. ehupfumi aya akaramba kunyange kana vachibatwa yakaderera tembiricha yakakwirira mwando Zvisinei kushandisa polystyrene anogona pasi kuchengetwa nzvimbo, uyewo vari Refrigeration mazano.

The chafariz conductivity pamusoro polystyrene riri pasi, saka kushandisa iyi inogona kuva, kwete chete nokuda kwezvipfuwo asiwo panze kumugumo. Zvisinei, ichi chinhu achizosiyana zvichienderana arambe achirema. The yepamusoro zviri, hwepamusorosoro styrene kugutsikana, mukuru polystyrene wakaipa vanochengeta kupisa. Somuenzaniso, panyaya extruded polystyrene furo, ayo chafariz conductivity achava 0,028Vt / Mk, nekuti styrene granules mune iyi vari rimwe jira chimiro, sezvo pasina gwanza therebetween.

Kuenzanisa chafariz conductivity mu pezvitsiga siyana

Enzanisa unogona kuona pezvitsiga wandei polystyrene, arambe achirema uye chafariz conductivity avo anosiyana. Density PSB-C15 idukusa 15 makirogiramu / m ^3, apo nomuganhu chafariz conductivity inobva 0.07-0.08 W / Mk. Maererano zvizivikanwe PSB-C35, ayo arambe achirema akaenzana panogumira 25.1 kusvika 35 makirogiramu / m ^3, apo chafariz conductivity iri 0,038 W / Mk. The sero rinogona kuona zvakawanda uye extruded polystyrene furo. The muchiso 35 arambe achirema zvichisiyana 33 kusvika 38, asi chafariz conductivity akaenzana 0,03.

Kana usati kutara 45, wokutanga parameter achizosiyana kubva 38,1 kusvika 45, asi wechipiri akaenzana 0,032. Thermal conductivity kuti polystyrene dererei zvikuru tichienzanisa ichi maitiro kuri kune dzimwe zvinhu. Somuenzaniso, rakatsaurirwa ivhu ari arambe achirema pamusoro 1200 makirogiramu / m ³ ane chafariz conductivity akaenzana 0,58.

Achienzanisa chafariz conductivity kuti polystyrene pamwe nezvimwe

In minda bhizimisi uye kuvakwa kuwedzera polystyrene kushandiswa nhasi vakawanda. The chafariz conductivity, fananidzo izvo zvichashandiswa kutaurwa pazasi, zviri nani pasi iyi. Asi chicherwa nemvere zvazvo izvi zvichisiyana 0,07 kusvika 0.08 W / Mk. Kana kongiri kuti chafariz conductivity zviri akaenzana 1.30, ukuwo kongiri - 2,04.

Lightweight uwandu hwezvinhu zvose zvabatanidzwa. uye furo dzinoratidzwa chafariz conductivity akaenzana 0,58 uye 0.37, ukuwo. We rakawedzerwa polystyrene, nokuti kuenzanisa, ari chafariz conductivity ndiye 0,028Vt / Mk. The chafariz conductivity pamusoro polystyrene furo uyewo kazhinji tichienzanisa. Muchiitiko chokutanga, ukoshi uyu 0,07, munyaya kwamahwendefa.

Key zvinhu: kuchengeteka, soundproofing uye windproof unhu

Rakawedzerwa polystyrene yakachengeteka, uye iwe unogona kurishandisa zvakare. Panguva iyoyowo kwezvakatipoteredza ichabereka razero choutsi. Maererano nokutsvakurudza, mune Zvivako polystyrene, styrene hauwanikwi ngozi. Kana ari soundproofing uye windshield, ipapo uchishandisa Styrofoam haumanikidzwi kushandisa zvimwe zvinhu kuti dzikurukure windproof nerevane soundproofing.

Kana ruzha-rokutora kugona inofanira kusimbiswa, pakukora zvinhu rukoko anofanira akawedzera. The chafariz conductivity pamusoro XPS aunotoziva, asi ichi ndicho - hakusi chete hunhu, izvo zvinofanira kuziva asati vanotenga ichi zvinhu. Somuenzaniso, polystyrene hakusi hygroscopic, saka, hapana yekubata mvura uye mwando, asingauyi kuzvimba uye asingauyi deform, uye asingauyi mudutu nemvura. Kana akaisa mvura rakawedzerwa polystyrene, zvichaita kupinda mukati chidziro, 3 chete% youremu hwendefa, nepo ehupfumi ane zvinhu kuramba kuchinja.

The hwemvura uye mvura chaizvo nyore kubuda styrofoam, saka hanya anofanira kutorwa kudzivirira paumbwe condensation. Kuti aite izvi, magadzirirwo mitemo vanoremekedzwa. Mwando kuramba polystyrene kunoita kuti kurishandisa mudziye nheyo, apo zvisingadzivisiki nevanhu pasi zvinhu.

Zvimwe zvinhu: zvoutachiona uye nemakemikari inertness

Insulation furo Board, iro ambotaurwa chafariz conductivity, akatsiga makemikari uye chaivo zvinhu. The ehupfumi emashoko achachengeta, kunyange kana mamiriro acho zvichashaya:

• sipo mhinduro;
• asidhi;
• munyu zvingaitwa nemugungwa mvura mhando;
• bleaching yomuchipatara;
• amoniya;
• gypsum;
• mvura-soluble dhayi;
• namira dambudziko;
• madota;
• simende.

Kana acid, ipapo rakatsaurirwa polystyrene hakufaniri kukanganiswa nitric asidhi kuisa acetic acid. Panguva kuisa vanofanira kudzivisa kuwana zvinhu nemakonzo uye mujuru, nokuti kunogona kukuvadza kuti chivako. Vakadhakwa nekongiri mhinduro anogona aoma dziparare mashoko sezvo chavakaona zvinoita zvokufembedzwa. Kugadzikana anogona kuona nhamba akazarurwa uye namahwindo pores, zvichienderana zvizivikanwe uye mhando kuputira.

Fire-polystyrene

coefficient pamusoro chafariz conductivity ose rakawedzerwa polystyrene kwave ambotaurwa, asi zvakakosha kuziva zvakawanda pamusoro moto njodzi zvinhu kuti combustible, asi ane zvakanaka moto nemishonga, nokuti motokari-kuvesa tembiricha iri 4910 ° C. Kana tikaenzanisa paakati ichi nehuni, zviri 1,8 nguva yakakwirira, nokuti huni achava zvakakwana 2600 chete ° C.

Flammability uye mano chipise

Kana moto ichava pamusoro 4 masekonzi, mashoko acho kuzvipira damped. Vari combustion muitiro kuchaita chipise kuputira mune bhuku 1000 MJ / m ^3, pamusoro matanda, chirungamutauro anoda kubva 7000 kusvika 8000 MJ / m ^3, ichi chinoratidza kuti tembiricha yaizova yakaderera zvikuru panguva combustion polystyrene. On sero nhasi anogona kuwanikwa kuzvipira ukabvisa akavandudza polystyrene, iyo inogadzirwa pamwe kuwedzera murazvo retardants. Asi nokufamba kwenguva, mugumisiro akarasika, uye zvinhu kuti ndowenyika boka combustibility T2 pakupedzisira kupiwa Class T4.

The ukobvu of polystyrene

Rakawedzerwa polystyrene, chafariz conductivity, pakukora yaunofanira kungwarira kana uchironga kutenga kuputira ichi anogadzirwa nhasi vagadziri siyana. The jira inogona zvakawanda ukobvu iri zvinobva 20 mm kusvika masendimita 20. Zvisinei, vatengi vazhinji vari kubvunza pamusoro jira nani kusarudza. Kuti aone kukosha ichi, unofanira kubvunza, chii kuramba kupisa kuchinjwa. Pano zvose achavaponesa nyika yacho. Somuenzaniso, muzinda Moscow ari kurwisa porusvingo anofanira akaenzana 4.15 mamita ² ° C / W, nezvemitambo kumaodzanyemba kunzvimbo, pachava zvakakwana 2,8 ^m2 ° C / Watt.