Abathengi abaninzi ngewebhusayithi yethu bacela iingcebiso ngefowuni malunga nokuthandwa kweentlobo zeengxowa ezilukiweyo, ngoko namhlanje ibhegi elukiweyo yeDongLai Xiaobian ukuchaza ukuthandwa kweentlobo zeengxowa ezilukiweyo.
Iintlobo zeengxowa ezilukiweyo
Iingxowa ezilukiweyo zikwabizwa ngokuba ziingxowa zesikhumba senyoka. Luhlobo lweplastiki, esetyenziswa kakhulu ekupakisheni. Izinto eziluhlaza zihlala ziyi-polyethylene, i-polypropylene kunye nezinye izinto zeplastiki eziluhlaza. Nantsi intshayelelo emfutshane ngohlobo lwengxowa elukiweyo kunye nokusetyenziswa kwayo.
I-Polyethylene yeyona nto iphambili esetyenziswa kwimveliso yangaphandle, i-polypropylene yeyona mveliso iphambili yasekhaya. Yi-thermoplastic resin eyenziwe yi-polymerization ye-ethylene. Kwishishini, ikwaquka ii-copolymers ze-ethylene ezine-α-olefin encinci. I-Polyethylene ayinavumba, ayinatyhefu, ine-wax, inokumelana okuhle kakhulu nobushushu obuphantsi (ubuncinci bobushushu bokusebenza ukuya kuthi ga kwi--70 ~ -100 ℃), uzinzo oluhle lweekhemikhali, uninzi lwe-acid kunye ne-alkali corrosion resistance (ukumelana ne-asidi, i-oxidation), ayinyibiliki kwizinyibilikisi ngokubanzi kubushushu begumbi, ukufunxwa kwamanzi okuphantsi, ukusebenza kakuhle kobushushu bombane; Nangona kunjalo, i-polyethylene inovelwano kakhulu kuxinzelelo lokusingqongileyo (imiphumo yeekhemikhali kunye noomatshini) kwaye inokumelana okuncinci nokuguga kobushushu. Iimpawu ze-polyethylene ziyahluka ukusuka kuhlobo ukuya kolunye, ikakhulu kuxhomekeke kwisakhiwo se-molecular kunye noxinano. Iindlela ezahlukeneyo zemveliso zinokuvelisa uxinano olwahlukeneyo (0.91-0.96g/cm3). I-Polyethylene inokucutshungulwa ngendlela efanayo naleyo iiplastiki ze-thermoplastic eziqhelekileyo ezibunjiweyo (jonga ukucubungula iPlastic). Isetyenziswa kakhulu ekuveliseni iifilimu, izikhongozeli, imibhobho, ucingo olunye, ucingo kunye nentambo, izinto ezifunekayo imihla ngemihla, njl. Ingasetyenziswa njengezinto zokukhusela iiTV, i-radar, njl. Ngophuhliso lweshishini le-petrochemical, imveliso ye-polyethylene ikhule ngokukhawuleza, ibandakanya malunga ne-1/4 yemveliso iyonke yeplastiki. Ngo-1983, amandla emveliso iyonke ye-polyethylene ehlabathini yayiyi-24.65 metric tons, kwaye isityalo esakhiwayo sasinomthamo we-3.16 metric tons.
I-Polypropylene (PP)
I-resin ye-thermoplastic eyenziwe yi-polymerization ye-propylene. Kukho iintlobo ezintathu zeendlela zokumisela, ezizezi, i-isotopic epheleleyo, i-atactic kunye ne-indirect. Iimveliso zoshishino zenziwe ikakhulu zizakhiwo ze-isotopic. I-Polypropylene ikwaquka i-copolymer ye-propylene kunye nenani elincinci le-ethylene. Ihlala ikhanya, iqinile, ayinavumba kwaye ayinatyhefu. Ngenxa yemithetho yesakhiwo sayo, i-crystallinity ephezulu, indawo yokunyibilika ukuya kuthi ga kwi-167 ℃, ukumelana nobushushu. Ngobuninzi be-0.90g/cm3, yeyona plastiki ilula kakhulu. Ukumelana nokugqwala, amandla okuxinana angama-30MPa, amandla, ukuqina kunye nokucaca zingcono kune-polyethylene. Ingxaki kukuba ukumelana nefuthe lobushushu obuphantsi akukuhle, kulula ukuguga, kodwa kunokutshintshwa kwaye kongezwe i-antioxidant ukuze koyiswe.
Umbala wengxowa elukiweyo umhlophe okanye awumhlophe ngokubanzi, awunabungozi kwaye awunancasa, umonakalo emzimbeni womntu ngokubanzi umncinci. Nangona yenziwe ngeeplastiki ezahlukeneyo zeekhemikhali, kodwa ikhuselekile kakhulu kwindalo, inamandla okuphinda isetyenziswe;
Ingxowa elukiweyo isetyenziswa kakhulu, isetyenziselwa ukupakisha iintlobo ngeentlobo zeempahla, kwaye isetyenziswa kakhulu kushishino;
Ingxowa elukiweyo yeplastiki ene-polypropylene resin njengesixhobo esiphambili sokukhupha nokwelula ibe yintambo ethe tyaba, ize ilukwe ibe yingxowa.
Ingxowa yeplastiki elukiweyo edityanisiweyo enelaphu leplastiki elukiweyo njengesixhobo esisisiseko, ngokusebenzisa ubumba oluhambayo.
Isetyenziselwa ukupakisha umgubo okanye izinto eziqinileyo ezibunjiweyo kunye nezinto eziguquguqukayo. Ingxowa elukiweyo yeplastiki edityanisiweyo yahlulwe yaba mibini kwingxowa enye kwaye ibe mithathu kwingxowa enye ngokwendlela equlathe ngayo izinto eziphambili.
Ngokwendlela yokuthunga, inokwahlulwahlulwa ibe yingxowa esezantsi yokuthunga, ingxowa esezantsi yokuthunga esecaleni, ingxowa yokufaka kunye nengxowa yokuthunga egqunywe ngeglue.
Ngokuxhomekeke kububanzi obusebenzayo bengxowa, ingahlulwa ibe yi-450, 500, 550, 600, 650 kunye ne-700 mm. Imigaqo ekhethekileyo iya kuvunyelwana ngayo ngamaqela omabini.
Ngasentla kukho ukuthandwa kwezinto ezincinci zokuhombisa zonke iintlobo zokugqiba iingxowa ezilukiweyo, ngokwabelana ngomxholo, kunye nokusasazwa kweengxowa ezilukiweyo, ukuba ufuna ukungena nzulu kwingxowa yolwazi lwemarike, ungaqhagamshelana nomthengisi kwinkampani yethu, okanye uphando lwe-Eastern kunye neengxowa ezilukiweyo kwangoko, unxibelelwano oluhambelanayo luxutyushwa kweli phepha.
Ixesha lokuposa: Jan-15-2021