Ubwinshi bw'amavalufu ya pulasitiki burushaho kwiyongera

Nubwo hari igihe amabati ya pulasitiki afatwa nk'ikintu cyihariye—ni amahitamo akomeye y'abakora cyangwa bashushanya imiyoboro ya pulasitiki yo gukoresha mu nganda cyangwa bagomba kuba bafite ibikoresho bisukuye cyane—tuvuze ko aya mabati adafite akamaro kenshi muri rusange ni ukwitonda. Mu by'ukuri, amabati ya pulasitiki muri iki gihe afite uburyo bwinshi bwo kuyakoresha kuko ubwoko bw'ibikoresho bugenda bukura n'abashushanya neza bakeneye ibyo bikoresho bivuze uburyo bwinshi bwo gukoresha ibi bikoresho bikoreshwa mu buryo butandukanye.

IMITUNGO YA PLASTIKI
Ibyiza by'udupfunyika twa pulasitiki ni byinshi—kwangirika, kudakomera mu mikorobe no kwangirika; inkuta z'imbere zoroshye; uburemere bworoheje; koroshya gushyirwaho; igihe kirekire cyo kubaho; no kugabanuka kw'ikiguzi cy'ubuzima. Izi nyungu zatumye udupfunyika twa pulasitiki twemerwa cyane mu bikorwa by'ubucuruzi n'inganda nko gukwirakwiza amazi, gutunganya amazi yanduye, gutunganya ibyuma n'imiti, ibiribwa n'imiti, inganda z'amashanyarazi, inganda zitunganya peteroli n'ibindi.
Valve za pulasitiki zishobora gukorwa mu bikoresho bitandukanye bikoreshwa mu buryo butandukanye. Valve za pulasitiki zikunze gukoreshwa cyane zikozwe muri polyvinyl chloride (PVC), polivinyl chloride ya chlorine (CPVC), polypropylene (PP), na polyvinylidene fluoride (PVDF). Valve za PVC na CPVC zikunze guhuzwa n'imiyoboro hakoreshejwe impera z'imiyoboro zikora sima, cyangwa impera z'imigozi n'izifunganye; mu gihe PP na PVDF bisaba guhuza ibice by'imiyoboro, haba hakoreshejwe ikoranabuhanga rikoresha ubushyuhe, ubugari cyangwa amashanyarazi.

Nubwo polypropylene ifite kimwe cya kabiri cy'imbaraga za PVC na CPVC, ifite ubushobozi bwo kurwanya imiti myinshi kuko nta bintu bizwi biyungurura. PP ikora neza muri aside asetiki na hydroxides, kandi ikwiriye no mu bisubizo byoroheje bya aside nyinshi, alkali, umunyu n'ibindi binyabutabire byinshi by'umwimerere.

PP iboneka nk'ibikoresho bifite irangi cyangwa bidafite ibara (bisanzwe). PP karemano yangirika cyane n'imirasire ya ultraviolet (UV), ariko ibintu birimo ibara ry'umukara rya karubone rirenga 2.5% birahamye neza mu mirasire ya UV.

Imiyoboro ya PVDF ikoreshwa mu nganda zitandukanye kuva ku bucuruzi bw'imiti kugeza ku bucukuzi bw'amabuye y'agaciro kubera imbaraga za PVDF, ubushyuhe bw'akazi n'ubudahangarwa bwa shimi ku myunyu, aside ikomeye, ibinyabutabire byinshi biva mu bimera n'ibindi bintu bisukura. Bitandukanye na PP, PVDF ntabwo yangizwa n'izuba; icyakora, pulasitiki irabagirana ku zuba kandi ishobora gushyira amazi ku mirasire ya UV. Nubwo PVDF isanzwe, idafite ibara ry'uruhu ari nziza cyane mu gushyira mu bikorwa mu nzu, kongeramo ibara nk'umutuku wo mu rwego rw'ibiribwa byatuma umuntu ahura n'izuba nta ngaruka mbi ku buryo amazi akoreshwa.