Txhab polystyrene. Yuav ua li cas yog nws?

Polystyrene ua npuas ncauj nyob rau hauv nruab nrab-thib nees nkaum caug xyoo. Nws yog ua los ntawm polystyrene granules, tau nyob rau hauv tus txheej txheem ntawm refining. Yog li ntawd, polystyrene yog ib tug organic puag. Qhov tseem ceeb yog tias qhov no yam khoom uas yog muaj txawm nyob rau hauv khoom noj xws li cheese, pos nphuab, cinnamon, wine, thiab lwm tus neeg. Polystyrene yog pom zoo raws li uas tsis yog-tshuaj lom thiab tsis mus nyob tau cov kab mob no. Qhov no txhais tau tias cov tshuaj yeeb dej caw yog tsis muaj peev xwm ua phem rau cov neeg thiab yuav siv tau nyob rau hauv txawv teb ntawm tib neeg kev ua si.

Foamed polystyrene yog npaj los ntawm foaming thiab sintering ntawm lub polystyrene hlaws dai. Granules pumped pentane (qhov no natural gas condensate) nrog simultaneous sov vapor. Li ntawd, cov granule yog nce los ntawm yuav luag 50 lub sij hawm, tig nws mus rau hauv ib lub pob, sau nrog huab cua. Qhov no pob yog heev resilient thiab ruaj khov, thiab qhov rov qab tus txheej txheem, i.e., "tshuab", tsis tshwm sim. Cov li no tau sintered polystyrene ua npuas ncauj hlaws dai nrog chav. Nws puv homogeneous khoom. Foaming thiab sintering dab coj qhov chaw ib txhij.

Tu siab, lub Lavxias teb sab polystyrene ntau lawm muaj tshwm sim nrog rau kev siv ntawm outdated technology. Nws yog hu ua ib tug "method ntawm kev ncua polymerization ntawm styrene nyob rau hauv lub xub ntiag ntawm chav generator". Thaum lub ntiaj teb no kev lag luam siv tas mus li polymerization txoj kev nyob rau hauv loj. Qhov no txoj kev yuav ua rau nws tau mus nrhiav tau zoo khoom ntawm ib tug txo nqi.

Foamed polystyrene yog suab 100% cua. Nws tsis muaj ib yam ntxiv cov tshuaj. Qhov no cov ntaub ntawv uas yog check heev, nws tsis cev qhuav dej nyob rau hauv tus ntawm ib puag ncig. Yog li ntawd, nws yog nquag siv nyob rau hauv kev tsim kho. Txij li thaum polystyrene muaj zoo thermal conductivity, nws xyaum tsis kis ya raws, tsis txaus ntshai rau tib neeg noj qab haus huv thiab ib puag ncig.

Cov kev siv ntawm polystyrene ua npuas ncauj siv raws li rwb thaiv tsev. Piv txwv li, lub polystyrene phaj 12 xyoo centimeters tuab phab ntsa thickness ntawm 45 centimeters tsob ntoo los yog cib ntawm ib tug tuab ntawm 2 m!

Technology rwb thaiv tsev ntawm phab ntsa polystyrene phiaj no yuav yooj yim heev. Lawv glued mus rau qhov chaw nrog tshwj xeeb nplaum. Rau lub dag lub zog ntawm cov pob qij txha ntawm slabs tam yas plugs nrog thoob plaws lub kaus mom. Thaum rwb thaiv tsev adhered mesh tiv thaiv qhov tshwm sim ntawm tej kab nrib pleb thiab deformations. Tus tsim yog them dua nrog ib tug daws ntawm cov kua nplaum. Cov nram qab no finishing plaster los yog lwm yam hniav cov ntaub ntawv.

Muas polystyrene ua npuas ncauj yog heev yooj yim. Nws yuav tau xaiv nyob rau hauv tej khoom kho vajtse. Nws yog cheaper dua li lwm cov rwb thaiv tsev cov ntaub ntawv. Thaum twg koj yuav yog tsim nyog yuav tau txhais raws nraim li cas yuav polystyrene. Nws yog ntawm ob hom - rau rwb thaiv tsev ntawm phab ntsa thiab hauv pem teb rwb thaiv tsev. Tus thawj tsis yog li ntawd tuab raws li lub thib ob. Txawv polystyrene thiab daim ntawv thickness - los ntawm 20 mm mus rau 120 mm. Cov kev xaiv nyob rau hauv lub npaj tej hauj lwm. Feem ntau, rau rwb thaiv tsev ntawm phab ntsa nyob rau hauv peb kev nyab xeeb ntawm ib tug txheej txheem phab ntsa thickness sufficiently polystyrene 50 mm tuab. Yog hais tias cov qauv nrog nyias cov phab ntsa, cov polystyrene yuav tsum thicker. Cov tib txoj cai siv los xaiv ib qho kev xaiv rau cov huab cua sov pem teb.