Matenthedwe madutsidwe wa polystyrene, mbali ndi makulidwe zakuthupi

The madutsidwe matenthedwe wa polystyrene thovu ndi imodzi mwa makhalidwe ofunika kuti ali ndi chidwi akatswiri komanso ogula wamba. Nkhanizi amatchedwanso ndi matenthedwe kutchinjiriza thovu ndi umene uli 98% za mlengalenga. Iye anatsekeredwa maselo polystyrene thovu.

Kapangidwe otetezeka kwathunthu thanzi, choncho chuma ntchito kupanga ma CD chakudya. Iye n'zosavuta ntchito, wapeza ambiri ake mu zomangamanga, komanso ali ndi mtengo wotsika.

Zimene muyenera kudziwa za kukodzedwa polystyrene matenthedwe madutsidwe

Matenthedwe madutsidwe wa polystyrene ndi otsika kwambiri, chifukwa mpweya umene uli chuma maziko alinso makhalidwe amenewa. Choncho, anafotokoza chizindikiro cha kudzipatula zimasiyanasiyana 0,037 kuti 0,043 W / Marko, za mlengalenga, khalidwe ili ndi 0,027Vt / MK.

Kukodzedwa polystyrene amapangidwa malinga GOST 15588-86 ndipo ali ndi kusamala kwambiri, kuwonjezera mawu a ntchito, angathe kuchepetsa Kutentha ndi kuwateteza ku yozizira koopsa. katundu izi ikutsatiridwa ngakhale atadziŵa otsika kutentha ndi chinyezi mkulu Komabe ntchito polystyrene mungathe pansi danga yosungirako, komanso ziwembu za refrigeration.

The madutsidwe matenthedwe wa polystyrene ndi otsika, choncho ntchito zinthu zimenezi zingakhale, osati kokha kwa m'banja komanso kumaliza kunja. Komabe, nkhani zimenezi zimasiyana malinga osalimba. The apamwamba ilo liriri, styrene zili apamwamba, ndi polystyrene ndi woipa kusunga kutentha. Mwachitsanzo, mu nkhani ya extruded polystyrene thovu, madutsidwe ake matenthedwe adzakhala 0,028Vt / Marko, chifukwa styrene granules Pankhaniyi ali mu dongosolo limodzi pepala, ngati palibe therebetween kusiyana.

Kuyerekezera matenthedwe madutsidwe mu zopangidwa osiyana

Yerekezerani, mukhoza kuona zopangidwa angapo polystyrene, kachulukidwe ndi matenthedwe madutsidwe amene amasiyana. Kachulukidwe PSB-C15 ndi zosakwana 15 makilogalamu / mamita ^3, pamene malire a madutsidwe matenthedwe ndi kwa 0.07-0.08 W / MK. Pankhani ya mtundu PSB-C35, kachulukidwe wake ndi wofanana ndi malire a 25,1 kwa 35 makilogalamu / mamita ^3, pamene madutsidwe matenthedwe ndi 0,038 W / MK. zogulitsa Tingaone ndi extruded polystyrene thovu. The mtundu 35 kachulukidwe zimasiyanasiyana 33 mpaka 38, pamene madutsidwe matenthedwe wofanana 0,03.

Ngati pamaso panu yang'anirani 45 chizindikiro choyamba zimasiyana 38,1 45, pamene lachiwiri ndi wofanana 0,032. Matenthedwe madutsidwe wa polystyrene kwambiri m'munsi poyerekeza ndi izi chibadidwe khalidwe zipangizo zina. Mwachitsanzo, kukodzedwa dongo pa osalimba a 1200 makilogalamu / mamita ³ ali madutsidwe matenthedwe wofanana 0,58.

Poyerekeza madutsidwe matenthedwe wa polystyrene ndi zipangizo zina

M'minda ambiri a makampani ndi kumanga kukodzedwa polystyrene ntchito lero. The madutsidwe ikukhudzana kufanana kwa zomwe anatchula pansipa, m'malo otsika mu nkhani iyi. Koma ubweya mchere anayerekezera zimene zimasiyanasiyana 0,07 kuti 0,08 W / MK. Koma simenti, ndi madutsidwe matenthedwe ndi wofanana ndi 1,30, pamene konkire - 2,04.

Opepuka akaphatikiza ndi thovu ndi khalidwe la madutsidwe matenthedwe wofanana 0,58 ndi 0,37, motero. Ife kukodzedwa polystyrene, kuyerekezera, ndi madutsidwe matenthedwe ndi 0,028Vt / MK. The madutsidwe matenthedwe wa polystyrene thovu ndi zambiri poyerekeza. Mbali yoyamba, mtengo uwu unali 0,07, ngati mbale.

mbali mfundoyi: chitetezo soundproofing ndi windproof makhalidwe

Kukodzedwa polystyrene ndi otetezeka, ndipo mungathe kugwiritsa ntchito izo kachiwiri. Pa nthawi yomweyo chilengedwe udzabala mpweya ziro. Malinga ndi kafukufuku, mu nyumba ya polystyrene, styrene sapezeka oopsa. Koma soundproofing ndi zenera lakutsogolo, ndiye ntchito Styrofoam Sikuti ntchito zipangizo zina patsogolo ntchito windproof ndi soundproofing.

Ngati imapanga phokoso-kungolandira chiyenera kulimbitsidwa, ndi makulidwe a wosanjikiza zakuthupi ayenera ziwonjezeke. The madutsidwe matenthedwe wa XPS mukudziwa kale, koma ichi - si khalidwe chabe, amene ayenera kudziwa pamaso pogula zinthu izi. Mwachitsanzo, polystyrene si hygroscopic Choncho, si kuyamwa madzi ndi chinyezi, si pathupi ndipo alibe deform, ndipo si kupasuka mu madzi. Pamene anaikidwa madzi kukodzedwa polystyrene, izo mkatikati mkati mlathowo okha 3% ya mbale kulemera, pamene katundu zakuthupi akhalebe sichinasinthe.

The nthunzi ndipo madzi ndi mwachilungamo zovuta kuti utuluke mwa styrofoam, kotero chisamaliro ayenera kumwedwa kuletsa mapangidwe condensation. Kuti tichite zimenezi, malamulo kapangidwe ambalemekezedwa. Chinyezi kukana polystyrene amalola ntchito pa kutchinjiriza wa maziko, kumene kukhudzana mosalephera ndi chuma nthaka.

mbali zina: kwachilengedwenso ndi mankhwala inertness

Kutchinjiriza thovu bolodi, limene tatchulazi madutsidwe ikukhudzana ndi khola kuti mankhwala ndi zifukwa za chilengedwe. The katundu wa zinthu adzasunga, ngakhale akuphatikizapo umasokonezeka:

• sopo yankho;
• asidi;
• njira mchere ndi mtundu madzi nyanja;
• oyeretsa wothandizila;
• amoniya;
• gypsum;
• madzi sungunuka utoto;
• njira zomatira;
• laimu;
• simenti.

Koma chidulo, ndiye mu kukodzedwa polystyrene sayenera anakhudzidwa ndi asidi nitric acid kuikapo maganizo acetic. Pa unsembe ayenera kupewa kupeza makoswe zakuthupi ndi chiswe, chifukwa angathe kuwononga dongosolo la. Mothandizidwa ndi njira yowona mwina pang'ono apasuke zinthu monga poyera kuti mankhwala ndiponso. Bata tingadziwire chiŵerengero cha pores poyera ndi chatsekedwa, malingana ndi mtundu ndi mtundu wa kutchinjiriza.

Moto-polystyrene

koyefishienti wa matenthedwe madutsidwe wa kukodzedwa polystyrene wakhala tatchulazi, koma ndi kofunika kudziwa zambiri za moto ngozi ndi nkhani kuyaka, koma ali wabwino moto kukana, chifukwa kutentha galimoto-poyatsira ndi 4910 ° C. Ngati tikayerekezera chizindikiro ichi ndi nkhuni, ndi nthawi 1.8 apamwamba, chifukwa nkhuni angakhale okwanira 2600 chokha ° C.

Flammability ndi luso kupanga kutentha

Ngati moto ukhala masekondi 4, chuma ndi kudzilemeretsa damped. Mu ndondomeko kuyaka adzakhala kupanga kutentha kutchinjiriza mu buku la 1000 MJ / mamita ^3, ndi nkhani matabwa, zimakwana ranges kuchokera 7000 mpaka 8000 MJ / mamita ^3, amasonyeza kuti kutentha adzakhala m'munsi pa kuyaka polystyrene. Pa zogulitsa lero angapezeke kudziletsa wozimitsa kukodzedwa polystyrene, amene amapangidwa ndi Kuwonjezera retardants lawi. Koma pa nthawi, zotsatira atayika, ndi zinthu zimene uli gulu la combustibility T2 kenako anatumizidwa Maphunziro T4.

The makulidwe a polystyrene ndi

Kukodzedwa polystyrene, matenthedwe madutsidwe, kakakulu imene muyenera kudziwa ngati mukufuna kugula kutchinjiriza izi amapangidwa lero ndi opanga osiyana. pepala akhoza zocheperapo makulidwe mu osiyanasiyana kuchokera 20 mamilimita cm 20. Komabe, ogula ambiri akufunsa amene pepala ndi bwino kusankha. Kudziwa mtengo uwu, muyenera kufunsa, kodi kukana kuti kusintha kutentha. Apa zonse kudalira pa mayiko a m'dera. Mwachitsanzo, likulu la Moscow mu kulimbikira khoma ayenera kukhala wolingana 4,15 mamita ² ° C / W, ndi nkhani m'madera kum'mwera, kudzakhala okwanira 2.8 ^m2 ° C / Watt.