Iko Kuwedzera Kusvika kwePlastiki Mavharuvhu

Kunyange zvazvo mavharuvhu epurasitiki dzimwe nguva achionekwa sechigadzirwa chakakosha-chisarudzo chepamusoro cheavo vanogadzira kana kugadzira zvigadzirwa zvepombi zvepurasitiki zvemasisitimu eindasitiri kana kuti vanofanirwa kuve nemidziyo yakachena kwazvo munzvimbo-vachifunga kuti mavharuvhu aya haana zvakawanda zvekushandisa ipfupi- kuona. Muchokwadi, mavharuvhu epurasitiki nhasi ane huwandu hwakasiyana hwekushandisa sezvo marudzi ari kuwedzera emidziyo uye vagadziri vakanaka vanoda izvo zvinhu zvinoreva nzira dzakawanda dzekushandisa zvishandiso izvi zvakasiyana.

PASTIC'S PROPERTIES
Zvakanakira mavharuvhu epurasitiki zvakafara-kuora, makemikari uye abrasion resistance; yakatsetseka mukati memadziro; uremu huremu; nyore kuisa; kurarama kwenguva refu; uye mutengo wakaderera wehupenyu. Izvi zvakanakira zvakakonzera kugamuchirwa kwakakura kwemavharuvhu epurasitiki mune zvekutengesa uye maindasitiri mafomu sekugovera mvura, marara emvura, simbi uye makemikari kugadzirisa, chikafu nemishonga, zvidyarwa zvemagetsi, mafuta ekunatsa uye nezvimwe.
Mavharuvhu epurasitiki anogona kugadzirwa kubva kune akati wandei akasiyana zvinhu zvinoshandiswa mune akati wandei magadzirirwo. Mavharuvhu epurasitiki akajairika anogadzirwa ne polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polypropylene (PP), uye polyvinylide fluoride (PVDF). PVC neCPVC mavharuvhu anowanzo kubatanidzwa kune pombi masisitimu ne solvent cementing socket ends, kana shinda uye flanged magumo; nepo, PP nePVDF inoda kujoinwa kwepiping system zvikamu, kungave nekupisa-, butt- kana electro-fusion matekinoroji.

Kunyange zvazvo polypropylene ine hafu yesimba rePVC neCPVC, ine makemikari akawanda anopikisa nokuti hapana zvinonyungudutsa zvinozivikanwa. PP inoita zvakanaka muconcentrated acetic acids uye hydroxides, uye inokodzerawo zvinyoro zvigadziriso zveakawanda acid, alkalis, munyu uye akawanda organic makemikari.

PP inowanikwa seine pigmented kana isina pigmented (yakasikwa) zvinhu. Natural PP yakashatiswa zvakanyanya neultraviolet (UV) mwaranzi, asi makomisheni ane anopfuura 2.5% kabhoni dema pigmentation ane UV yakagadzikana zvakakwana.

PVDF pombi dzemapombi dzinoshandiswa mumhando dzakasiyana dzemaindasitiri ekushandisa kubva kumishonga kusvika kumigodhi nekuda kwesimba rePVDF, tembiricha yekushanda uye kupikisa kemikari kumunyu, maasidhi akasimba, mabhesi edilute uye zvakawanda zvinonyungudutsa organic. Kusiyana nePP, PVDF haina kuderedzwa nechiedza chezuva; zvisinei, purasitiki iri pachena kune chiedza chezuva uye inogona kuburitsa mvura kune UV mwaranzi. Nepo maumbirwo ePVDF echisikigo, asina pigment akanakira kuchena kwepamusoro, kushandiswa kwemukati, kuwedzera pigment yakaita seyechikafu tsvuku inobvumidza kuvhenekwa nezuva pasina mhedzisiro yakaipa pamvura inoyerera.