Kuyini PVC, futhi yini luba nomthelela umzimba womuntu

Kuyini PVC? Lokhu kwaziswa kuyinto chloride polyvinyl. It kungokwalabo iqembu thermoplastics - zepulasitiki, okuyinto emva umkhiqizo ukwakha inqubo unawo amandla kabusha. PVC impahla net yakhiwa 43 amaphesenti ethylene. Labo abasele abanga-57 amaphesenti - is kuhlangene chlorine.

PVC impahla - kuyini? Polyvinyl chloride ikhishwe ngesimo powder isetshenziswa emikhakheni eminingi yomnotho. Umkhiqizo odume kakhulu, okuyinto lisetshenziswe ukukhiqizwa kwale nto - kungcono amawindi plastic. Ukuze kukhiqizwe amaphrofayli ifasitela in polyvinyl particulate chloride sengezwe zombala ekhethekile, stabilizers modifiers nezinye izithasiselo eziningi. Siyabonga kubo, umkhiqizo kuba cishe invulnerable ukuba elangeni, izinga lokushisa nezinye izinto zemvelo ekushintshashintsheni imvelo.

Kuyini PVC? izici ngokomzimba

Isici esiyinhloko PVC impahla - amandla ke sika. Ngokusho impahla yayo PVC is cishe hhayi ngaphansi ukusonteka nakwezinye izinkinga lokukhanda. Izinga kakhulu ofanayo ukuze athole amandla kwale nto incike isakhiwo sale macromolecules kanye nokwakheka polymer.

PVC impahla - kuyini? sici

Lokhu kwaziswa libhekene njengoba i material incombustible Thermoplastic okuyinto ikufanele ukuba machined okujwayelekile umshini amathuluzi, futhi kalula kungenziwa ashiselwe ngendiza ashisayo ezingeni lokushisa 200-300 degrees Celsius. Ngaphezu kwalokho, kungaba abanamathela izinhlobo ezihlukahlukene zokunamathisela (ngokuvamile kusho perchlorvinyl resin based). Ngaphezu kwalokho, imithombo yezokuzijabulisa ingadlulisela impahla esebenzayo banamathela izinkuni, ukhonkolo nensimbi imikhiqizo. PVC akusho ukwesaba ukuchayeka izinhlobo eziningi acid kanye aliphatic, futhi kampompi ukuxova umuthi wokugoma hydrocarbon elimnandi. Amandla ingcina futhi welds imayelana 85-90 amaphesenti amandla impahla ngokwayo.

Ngenxa yamandla ayo okusezingeni eliphezulu nokugotshiswa kuyaqina polyvinyl sisikhulu phakathi kubadobi ababeziphilisa Artisanal ukukhiqiza izingxenye engenhla ukuphotha, kanye nenduku yokudoba ebusika. Prakthiza ebonisa ukuthi le mikhiqizo qinani izakhiwo zabo ngisho noma kushisa ngu 45 degrees Celsius.

izakhiwo Kwe-dielectric Heating

izakhiwo ebala imishikashika PVC nakho kudingekile ukuba uqaphele yokuthi PVC kuyinto yisivikelo esihle (hhayi uqhuba kagesi ngokusebenzisa uqobo). Nokho, lapho ukufuthelana lokushisa impahla 85 degrees Celsius noma ngaphezulu asebenzayo ngokushesha ilahlekelwa lezi izakhiwo. Njengoba for isisindo, kwabantu PVC ngoyisiwula kusinda kunakho polyethylene, kodwa alula kakhulu kunomoya PTFE futhi phenol formaldehyde plastic.

High PVC umlilo ukumelana kufezwa ngokusebenzisa e womshini yayo isakhi ezifana chlorine. Yikho kunciphisa ingozi flammability PVC kanzima.

chemical izakhiwo

Njengoba siphawulile ekuqaleni, i-PVC kuyinto cishe ogomekile emiphumeleni yezinye izinhlobo zobu-acid. Kuyiqiniso - PVC ayishintshi impahla yayo ngaphansi isenzo alkalis, uphethiloli, iziketekete usawoti izixazululo, nezinsimbi. Futhi, kuze kube-60 degrees Celsius impahla esebenzayo olumelana acid hydrochloric futhi formic. PVC olumelana namachibi nokuchayeka glycerol, amafutha kanye glycols. Ngokuqondene notshwala, chloride polyvinyl akuyona oncibilikayo ETHYL futhi methyl utshwala, utshwala ephakeme, kanye zokugcoba futhi amafutha. Akulona sichayeke emiphumeleni yayo kanye amanzi angcolile ene-asidi.

kusetshenziswa kuphi?

Kuyini PVC, siye kakade yatholakala, manje ake sixoxe ngokuthi iliphi imikhakha le nto isetshenziswa. Polyvinyl chloride kabanzi emsebenzini wokukhiqiza nezimo plastic amashidi (wall kanye flooring izinto), amafilimu, amagilavu zokuzivikela kanye nezinye izinto eziningi kanye nemikhiqizo. Ngesandla Esiqinile non-plasticized PVC amapayipi zenziwa invulnerable emiphumeleni ukugqwala, kanye izingxenye ezithile iminyango namafasitela. Inkambu kagesi ezazisetshenziselwa ukwenza ukwahlukanisa izintambo. Menze kanye amathoyizi, zokubhala kanye zemidlalo. PVC fibre esetshenziselwa ukwenza emanetheni okudoba, futhi nelineni yezokwelapha, knitwear kanye lemifanekiso ahlukahlukene izindwangu ezimbonini. Njengoba ubona, PVC isetshenziswa cishe zonke izimboni nendlu.

Izici PVC imikhiqizo

Ezimakethe Russian ungathola imikhiqizo enjalo e PVC kakhulu:

1. Flooring (ngamanye amagama - linoleum).
2. Film.
3. PVC panel.

Ngezansi, thina kafushane ngasinye salezi zinhlobo mikhiqizo engenhla.

Kuyini PVC-camera? Lena indawo lapho ekhethekile PVC tile, senzelwe ebeka phansi yasetshenziswa. Kungase kube njengoba isikwele elula, futhi idizayini bunjwa eziyinkimbinkimbi.

PVC ifilimu - kuyini? Ngokusho impahla yayo, it is a impahla kakhulu okusobala, zivumelanise nezimo futhi ube kancane stretchy. Njengazo zonke imikhiqizo ke olumelana alcohols futhi acid, kodwa has a ikhono eliyingqayizivele ukuba kudlule umoya-mpilo. Yingakho iziqukathi, igcwele kule filimu isikhathi eside akaphelelwa Svoge isethulo.

Kuyini PVC panel? Lokhu kwaziswa, esetshenziselwa kokuqeda kokufulela nezindonga emakamelweni ehlukene. Ngokuvamile esetshenziselwa ambozwe izindonga ekhishini futhi egumbini lokugezela.

Njengoba polyvinyl chloride kuthinta umzimba womuntu?

Vinyl chloride ngokwayo libhekene njengoba ushevu uqine kakhulu Ngo omlilo likhipha ezinobuthi. Ngo indoda, yalolu ketshezi has terato-, umphumela umdlavuza futhi mutagenic. Ngenxa yalokho, eziningi izifundo ososayensi wafakazela ukuthi umthelela PVC ku womuntu imbangela umdlavuza kwezitho zomzimba ahlukahlukene nezicubu (kuhlanganise ubuchopho, amaphaphu kwesibindi), futhi kuphula lymph kanye hematopoietic uhlelo. Nge isenzo njalo lokuhlala eliphezulu vinyl chloride kungadala ngisho ukukhubazeka we isimiso sezinzwa kuze ukumisa okuphelele ukuphefumula. Nokho, abakhiqizi abaningi banamuhla baye kunakwe zonke lezi izakhiwo, ngakho-ke ukukhiqiza PVC kubuchwepheshe ekhethekile. imikhiqizo Wanamuhla polyvinyl chloride (uma qualitative) ayinayo umthelela esabekayo phezu komuntu. Ngakho-ke, ukuze impilo yabo engozini uma uthenga PVC kufanele simethembe emhlabeni abakhiqizi adumile kuphela.

Ngakho, sathola ukuthi PVC liyini nokuthi nomphumela emzimbeni womuntu.