Yakawedzerwa polystyrene (EPS), extruded polystyrene (XPS) uye polyurethane (PU) parizvino zvinhu zvitatu zveorganic izvo zvinonyanya kushandiswa mukuvharisa madziro ekunze.Pakati pavo, PU parizvino inozivikanwa seyakanakisa insulation zvinhu munyika, iyo ine yakaderera yekupisa conductivity pakati pezvese zvekudzivirira zvinhu.Kana iyo density yePU yakaoma iri 35 ~ 40 kg/m3, yayo yekupisa conductivity inongova 0.018 ~ 0.023W/(mK).Iyo insulation effect ye25mm-yakasimba PU furo yakaenzana neiyo 40mm-yakakora EPS, 45mm-yakakora yemaminerari wool, 380mm-yakakora kongiri kana 860mm-yakakora zvidhinha zvakajairika.Kuti uwane iyo yakafanana yekuisa mhedzisiro, ukobvu hwayo ingori hafu yeEPS.

Chirevo chechangobva kuitika chakaratidza kuti chimwe chezvikonzero zvekukurumidza kupararira kwemoto muHangzhou Ice uye Snow World ndechekuti iyo PU insulation zvinhu uye inofananidzira yepurasitiki yakasvibira miti yakashandiswa muzvivakwa haina kuzadzisa zvinodiwa zvekusapisa uye kudzoreredza kwemurazvo, utsi hwukakurumidza kukwira shure kwemoto.Chikonzero chechipiri ndechekuti zviyero zvekuparadzanisa moto uye matanho ekudzivirira utsi pakati peHangzhou Ice neSnow World nedzimwe nzvimbo muchivako dzaive dzisipo.Rusvingo rwemukati rwakagadzirwa nePU sandwich panel, uye magonhi ekubuda ndiwo magonhi anopisa anopisa panzvimbo yemoto-yakatemerwa magonhi, izvo zvakaita kuti moto upararire nekukurumidza kusvika kune yechipiri pasi rose mushure mekuputika kwemoto.

Chimwe chezvikonzero zvekuparara ndechekuti mushure mekunge moto watanga, zvinhu zvakaita sePU uye zvirimwa zvepurasitiki zvakatsva munzvimbo yakakura, zvichigadzira huwandu hukuru hwehutsi hunopisa hunotyisa, uye hutsi hunopisa hwakaburitswa hwakaramba huchiungana uye pakupedzisira hwakakonzera deflagration, zvichiita kuti vanhu vafa.

Kamwe kamwe, PU insulation zvinhu zvakava chinangwa chekushoropodzwa uye zvakawira mudutu remaonero everuzhinji!

Tichifungisisa nezvendima iyi, rhetoric idiki-rimwe divi, uye pane maviri asina kukwana.

Chekutanga: PU insulation zvinhu uye simulated epurasitiki yakasvibirira miti yakashandiswa muzvivakwa haina kusangana nezvinodiwa zvekusapisa uye kudzoreredza kwemurazvo.

Zvinoenderana neiyo GB8624-1997 Classification yeKupisa Maitiro eKuvaka Zvigadzirwa, B2-level polyurethane inogona kukwidziridzwa kusvika kuB1 level mushure mekuwedzera akakosha emoto retardants.Kunyangwe PU insulation mabhodhi ane hunhu hwezvinhu zve organic, anogona chete kusvika murazvo unodzoreredza giredhi reB1 pasi pezvino tekinoroji mamiriro.Uyezve, kuchine mabhodhoro ehunyanzvi uye matambudziko mukuvandudza nekugadzirwa kweB1-level PU insulation board.PU mabhodhi anogadzirwa neakawanda eChinese madiki uye epakati-saizi mabhizinesi anogona chete kusvika B2 kana B3 nhanho.Nekudaro, vagadziri vakakura vakawanda muChina vachiri kugona kuzviita.PU insulation mabhodhi anogadzirwa kubva akasanganiswa polyether uye PMDI (Polymethylene polyphenyl polyisocyanate) yekupupa maitiro uye akaiswa seB1 murazvo-retardant neyakajairwa GB8624-2012.Iyi organic insulation material inonyanya kushandiswa muminda yesimba rekuchengetedza zvivakwa zvekuvharirwa, yakakura-yakakura yekuchengetera inotonhora uye inotonhora cheni yekuvharisa.Inogona zvakare kushandiswa kudzivirira moto uye kupisa kwekupisa muzvirimwa zvemaindasitiri, ngarava, mota, kuvaka kwekuchengetedza mvura uye mamwe akawanda zvikamu.

Chechipiri: Utsi hunopararira nekukurumidza mushure memoto uye PU insulation zvinhu zvine chepfu.

Paive negakava rakawanda pamusoro pehupfu hwepolyurethane, kunyanya pakaitika tsaona dzakadai sekutsva kwePU zvinhu.Parizvino, yakarapwa polyurethane inozivikanwa zvakanyanya sechinhu chisina chepfu, uye zvimwe zvekurapa zvePU zvakaiswa mumidziyo yekurapa inoisirwa uye zvikamu.Asi polyurethane isina kupora inogona kuramba iine chepfu.Rigid PU furo imhando ye thermosetting zvinhu.Kana yapiswa, carbonized layer inoumbwa pamusoro payo, uye iyo carbonized layer inogona kudzivirira murazvo kubva pakupararira.EPS neXPS zvinhu zve thermoplastic izvo zvinonyunguduka nekudonha kana zvaiswa pamoto, uye madrip aya anogona zvakare kupisa.

Moto haukonzerwi chete nezvinhu zvekudzivirira.Zvivakwa zvinofanirwa kutorwa sehurongwa.Kuita kwemoto kwese system kwakabatana nezvinhu zvakasiyana senge manejimendi ekuvaka uye kugadzirisa kwezuva nezuva.Izvo hazvina kukosha kuti usimbise neupofu giredhi remoto retardant yezvivakwa zvekuvaka.“Chaizvoizvo, mashoko acho pachawo akanaka.Chinokosha kuishandisa nemazvo uye zvakanaka. "Kare makore mazhinji apfuura, Li Jianbo, mutevedzeri wemunyori mukuru weChina Polyurethane Industry Association, akadzokorora asimbisa nyaya dzakafanana mumaforamu akasiyana siyana nemisangano.Iyo chaotic yekuvaka nzvimbo manejimendi uye kusatarisisa kwakashata kwezvigadzirwa zvisina kukodzera uye zvisingateveri ndizvo zvinokonzeresa moto, uye isu hatifanirwe kunongedza munwe pazvinhu kana dambudziko raitika.Saka nazvino, dambudziko richiripo.Zvisingaonekwi sedambudziko rezvinhu zvePU, mhedziso inogona kunge yakanyanya kudivi rimwe.

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