Imiyoboro ya PP-R ishingiye kuri polypropilene ya kopolymerize idasanzwe nkibikoresho fatizo kandi bikozwe hakurikijwe GB / T18742. Polypropilene irashobora kugabanywamo PP-H (homopolymer polypropylene), PP-B (guhagarika copolymer polypropilene), na PP-R (polipropile idasanzwe). Imashini zibiri zometseho imashini zifite uruhare runini mugukora imiyoboro. PP-R ni ibikoresho byo guhitamo imiyoboro ya polypropilene kumazi ashyushye nubukonje bitewe nigihe kirekire irwanya umuvuduko wa hydrostatike, ogisijeni irwanya ubushyuhe bwigihe kirekire no gutunganya no kubumba.
Umuyoboro wa PP-R ni iki?
Umuyoboro wa PP-R nanone witwa ubwoko butatu bwa polypropilene. Ifata kopolymer idasanzwe ya polypropilene kugirango isohore mu muyoboro, hanyuma itere inshinge mu muyoboro. Nubwoko bushya bwibicuruzwa bya pulasitiki byakozwe kandi bikoreshwa mu Burayi mu ntangiriro ya za 90. PP-R yagaragaye mu mpera za 80′s, ikoresheje inzira ya gaz ya cololymerisation kugirango ikore hafi 5% PE mumurongo wa molekuline ya PP itabishaka kandi ihuriweho na polymerisime imwe (random copolymerisation) kugirango ibe igisekuru gishya cyibikoresho byimiyoboro. Ifite ingaruka nziza zo kurwanya no gukora igihe kirekire.
Ni ibihe bintu biranga imiyoboro ya PP-R? Umuyoboro wa PP-R ufite ibintu by'ingenzi bikurikira:
1.uburozi-butagira isuku. Molekile yibikoresho bya PP-R ni karubone na hydrogen gusa. Nta bintu byangiza kandi bifite uburozi. Ni isuku kandi yizewe. Ntibikoreshwa gusa mu miyoboro ishyushye kandi ikonje-amazi, ahubwo ikoreshwa no muburyo bwiza bwo kunywa.
2.Gushyushya kubika no kuzigama ingufu. Amashanyarazi yumuriro wa PP-R ni 0.21w / mk, ni 1/200 gusa cyumuyoboro wibyuma.
3.Ubushyuhe bwiza. Ahantu horohereza vicat ya PP-R ni 131.5 ° C. Ubushyuhe ntarengwa bwo gukora burashobora kugera kuri 95 ° C, bushobora kuzuza ibisabwa na sisitemu y’amazi ashyushye mu kubaka amazi n’ibisobanuro by’amazi.
4.Ubuzima bwa serivisi. Ubuzima bwakazi bwumuyoboro wa PP-R burashobora kugera kumyaka irenga 50 munsi yubushyuhe bwakazi bwa 70 ℃ nigitutu cyakazi (PN) 1.OMPa; ubuzima bwa serivisi yubushyuhe busanzwe (20 ℃) bushobora kugera kumyaka irenga 100.
5.Gushiraho byoroshye no guhuza byizewe. PP-R ifite imikorere myiza yo gusudira. Imiyoboro hamwe nibikoresho birashobora guhuzwa no gushonga gushushe hamwe no gusudira amashanyarazi, byoroshye gushiraho kandi byizewe mubice. Imbaraga z'ibice bihujwe ziruta imbaraga z'umuyoboro ubwawo.
6.Ibikoresho birashobora gusubirwamo. Imyanda ya PP-R irasukurwa ikajanjagurwa kandi ikongera gukoreshwa kugirango habeho imiyoboro n'imiyoboro. Umubare wibikoresho bitunganyirizwa ntibirenza 10% yumubare wuzuye, ntabwo bigira ingaruka kumiterere yibicuruzwa.
Ni ubuhe buryo nyamukuru bwo gukoresha imiyoboro ya PP-R?
1.Inyubako ya sisitemu y'amazi akonje kandi ashyushye, harimo na sisitemu yo gushyushya hagati;
2.Ubushuhe mu nyubako, burimo hasi, kuruhande no gushyushya imirasire;
3.Uburyo bwiza bwo gutanga amazi yo kunywa mu buryo butaziguye;
4.Uburyo bwo guhumeka ikirere (hagati);
5.Umuyoboro w’inganda zo gutwara cyangwa gusohora ibitangazamakuru byimiti.
Igihe cyoherejwe: Gicurasi-19-2021