[Kev piav qhia dav dav] Polyethylene yog ib hom yas, paub txog nws qhov sib piv ceev ceev, kev ywj pheej thiab kev ruaj khov tshuaj lom neeg. Nws zoo tagnrho rau kev siv cov kav dej siab thiab tsis siab. Cov kav dej HDPE feem ntau yog ua los ntawm polyethylene 100 resin, nrog qhov ceev ntawm 930-970 kg / m3, uas yog li 7 npaug ntawm cov hlau.

Polyethylene yog ib hom yas, uas paub txog nws qhov sib piv ntawm qhov ceev, kev ywj pheej thiab kev ruaj khov ntawm tshuaj lom neeg. Nws zoo tagnrho rau kev siv cov kav dej siab thiab tsis siab. Cov kav dej HDPE feem ntau yog ua los ntawm polyethylene 100 resin, nrog qhov ceev ntawm 930-970 kg / m3, uas yog li 7 npaug ntawm cov hlau. Cov kav dej sib dua yooj yim dua rau kev thauj mus los thiab teeb tsa. Polyethylene tsis cuam tshuam los ntawm cov txheej txheem xeb electrochemical, thiab nws yog ib txwm muaj rau cov kav dej kom raug rau ntsev, kua qaub thiab alkali. Qhov chaw du ntawm lub raj polyethylene yuav tsis raug xeb, thiab kev sib txhuam qis, yog li lub raj yas tsis yooj yim cuam tshuam los ntawm kev loj hlob ntawm cov kab mob me me. Lub peev xwm los tiv thaiv kev puas tsuaj corrosion thiab kev ntws tas li ua rau cov kev xav tau txij nkawm ntawm cov kav dej HDPe qis heev. Cov kav dej Polyethylene tuaj yeem ua los ntawm cov resin reinforced, faib ua PE100-RC, thiab ntxiv rau qeeb qeeb kev loj hlob ntawm qhov tawg. Cov kav dej tsim tawm tuaj yeem muaj lub neej ua haujlwm ntev, thiab polyethylene muaj qhov zoo dua hauv kev lag luam hauv lub neej ntawm qhov project.

Tam sim no qhov ruaj khov ntawm cov kav dej HDPe tau txiav txim siab lawm, kev lag luam tseem ceeb heev thaum cov kav dej polyethylene siv rau hauv cov ntawv thov kev txuag dej. Piv nrog cov kav dej hlau ductile, qhov zoo tshaj plaws ntawm cov kav dej polyethylene yog tias lawv tuaj yeem tiv thaiv kev xau. Muaj ob hom kev xau ntawm cov kav dej: kev sib koom ua ke, kev xau tawg thiab kev xau perforation, uas yooj yim rau kev tswj hwm.

Qhov loj ntawmHDPE yeeb nkabyog nruab nrab ntawm 1600 hli thiab 3260 hli, thiab cov kav dej loj uas tam sim no muaj nyob hauv khw siv tau. Ntxiv rau cov tshuab dej hauv nroog, cov kav dej yas loj uas ua los ntawm polyethylene kuj siv tau rau hauv kev lim dej hiav txwv thiab cov chaw kho dej khib nyiab. Cov kav dej loj uas muaj txoj kab uas hla tuaj yeem yog txij li 315 cm txog 1200 cm. Txoj kab uas hla lojHDPe yeeb nkabnws ruaj khov heev thiab txhim khu kev qha. Tom qab raug faus rau hauv av, nws tuaj yeem khiav tau ntau xyoo thiab tsis tas yuav saib xyuas ntau, yog li nws tsim nyog rau kev siv dej khib nyiab. Lub zog ntawm cov yeeb nkab polyethylene nce ntxiv thaum nws qhov loj zuj zus, qhia txog kev ua haujlwm tiv thaiv kev co zoo kawg nkaus. Piv txwv li, av qeeg Kobe xyoo 1995 hauv Nyiv Pooj, cov hauv paus hauv nroog; txhua lub raj xa dej tsis ua haujlwm tsawg kawg ib zaug txhua 3 km, thiab tag nrho cov raj xa dej HDPE tsis muaj qhov tsis ua haujlwm.

Qhov zoo ntawm cov yeeb nkab HDPE: 1. Kev ruaj khov tshuaj zoo: HDPE tsis muaj polarity, kev ruaj khov tshuaj zoo, tsis yug algae thiab cov kab mob, tsis scale, thiab yog ib yam khoom zoo rau ib puag ncig. 2. Lub zog sib txuas zoo: siv lub qhov hluav taws xob fusion lossis lub pob tw sib koom ua ke thermal fusion, nrog ob peb qhov sib koom ua ke thiab tsis muaj to. 3. Kev tiv thaiv dej ntws tsawg: Sab hauv ntawmHDPe yeeb nkabyog du, nrog rau cov coefficient tsis tshua muaj kev tiv thaiv thiab ntws loj. 4. Kev tiv thaiv zoo rau qhov kub qis thiab brittleness: qhov kub brittleness yog (-40), thiab kev tiv thaiv tshwj xeeb tsis tas yuav tsum muaj rau kev tsim kho kub qis. 5. Kev tiv thaiv zoo abrasion: Kev sib piv ntawm kev tiv thaiv abrasion ntawm cov yeeb nkab polyethylene thiab cov yeeb nkab hlau qhia tau hais tias kev tiv thaiv abrasion ntawm cov yeeb nkab polyethylene yog 4 npaug ntawm cov yeeb nkab hlau. 6. Kev tiv thaiv kev laus thiab lub neej ntev: Cov yeeb nkab HDPE tuaj yeem khaws cia lossis siv sab nraum zoov rau 50 xyoo yam tsis muaj kev puas tsuaj los ntawm ultraviolet hluav taws xob.