Mayelana nezinto zepulasitiki ezithintekayo, kunezinhlobonhlobo zezinketho emakethe ongakhetha kuzo. Impahla ngayinye inezici zayo eziyingqayizivele kanye nezicelo, ngakho-ke kubalulekile ukuqonda umehluko bese ukhetha impahla efanele izidingo zakho ezithile. Kulokhu okuthunyelwe kwebhulogi, sizoxoxa ngomehluko phakathiIphepha le-PPkanye nebhodi le-PP, izinto ezimbili zepulasitiki ezithandwayo ezisetshenziswa kabanzi ezimbonini ezihlukahlukene.
Kokubili ishidi le-PP nebhodi le-PP zenziwe nge-polypropylene, i-polymer ye-thermoplastic enezakhiwo ezinhle kakhulu. Eyaziwa ngokumelana nokukhathala okuguquguqukayo kanye nokumelana nokushisa okuhle kakhulu, i-polypropylene ilungele izinhlelo zokusebenza ezidinga ukuqina nokumelana nokushisa okuphezulu.
Umehluko omkhulu phakathi kweshidi le-PP neIbhodi le-PPilele ezicini zabo zomzimba.Iphepha le-PPiyishidi lepulasitiki elincanyana elinamandla amakhulu okudonsa kanye namandla angaphezulu. Zivame ukusetshenziselwa izinjongo zokupakisha njengoba zinikeza isivikelo esihle kakhulu futhi zimelana nokugqoka kanye ne-oxidation. Amashidi e-PP ayaziwa futhi ngokumelana kwawo namakhemikhali aphezulu, okuwenza afanelekele ukusetshenziswa embonini yamakhemikhali.
Ngakolunye uhlangothi, ibhodi le-PP lijiyile futhi linamandla kuneshidi le-PP. Ngokuvamile zisetshenziswa ezinhlelweni ezidinga amandla aphezulu nokuqina, njengezimpawu, izibonisi nezingxenye zesakhiwo. Ibhodi le-PP liphinde libe nokugoba ukukhathala kanye nokumelana nokushisa okuhle, okufana neshidi le-PP.
Nakuba kokubili ishidi le-PP kanyeIbhodi le-PPbabe ezinye izici ezivamile, kuyadingeka ukuba unake umehluko ukulinganiselwa kwabo. Ishidi le-PP kulula ukuba libe brittle ezingeni lokushisa eliphansi futhi alinakho ukumelana nesimo sezulu. Ziphinde ziyinselele kuma-varnish nama-glues, futhi azikwazi ukushiselwa ngokuvama okuphezulu. Ngakolunye uhlangothi, amaphaneli e-PP nawo anale mikhawulo kanye nobunzima ekupendeni nasekuhlanganiseni.
Lapho ukhetha phakathi kweshidi le-PP nebhodi le-PP, kubalulekile ukucabangela izidingo zakho ezithile kanye nesicelo esihlosiwe. Uma udinga into encane futhi eguquguqukayo enokumelana okuhle kwamakhemikhali, ishidi le-PP lizoba yisinqumo esihle. Ngakolunye uhlangothi, uma udinga impahla enamandla enamandla nokuqina okuphezulu,Ibhodi le-PPizofaneleka kakhulu.
Ngamafuphi, kokubiliIphepha le-PPkanye nebhodi le-PP kuyizinto zepulasitiki ezihloselwe ukujwayelekile ezinezakhiwo zazo eziyingqayizivele kanye nezicelo. Nakuba behlanganyela izici ezivamile, njengokumelana nokukhathala okuguquguqukayo nokushisa, kubalulekile ukucabangela ukulinganiselwa kwabo lapho wenza isinqumo. Ngokuqonda umehluko phakathi kweshidi le-PP nebhodi le-PP, ungenza ukukhetha unolwazi futhi ukhethe ukwaziswa okufanele kakhulu ngezidingo zakho ezithile.
Isikhathi sokuthumela: Aug-21-2023
