Chii chinonzi HDPE zvinhu? Kunyatsoongorora maitiro uye kushandiswa kwepamusoro-density polyethylene
Muindasitiri yemakemikari, HDPE chinhu chakakosha zvakanyanya, zita rayo rakazara rinonzi High-Density Polyethylene (High-Density Polyethylene).Chii chaizvo chinonzi HDPE? Ichi chinyorwa chinokupa mhinduro yakadzama uye kuongororwa kwakadzama kwehunhu hweHDPE, maitiro ayo ekugadzira uye huwandu hwayo hwekushandisa.
Basic Concepts uye Chemical Mamiriro eHDPE
Chii chinonzi HDPE? Kubva pachimiro chemakemikari yekuona, HDPE ndeye thermoplastic polymer yakaumbwa nekuwedzera polymerization yeethylene monomers. Chimiro chayo chemolecular chinoratidzwa nemaketani akareba epolyethylene ane hupamhi hwema molecular mass uye mashoma emaketani emapazi pakati pawo, zvichiita kuti kurongeka kwema molecular. Uku kurongeka kwemamorekuru kunopa HDPE kuwanda kwepamusoro mumhuri yepolyethylene, kazhinji pakati pe0.940 g/cm³ uye 0.970 g/cm³.
Superior Physical Properties yeHDPE
HDPE zvinhu zvinoratidzira zvakawanda zvakanakisa zvemuviri zvimiro nekuda kweiyo yakasarudzika molecular chimiro. Iine simba rakakwirira uye rakasimba uye inokwanisa kumira kumanikidzika kwepamusoro-soro, iyo inoita kuti ive yakanakisa mukutakura mitoro.HDPE ine yakanakisa makemikari kushorwa, iyo inoita kuti ibatsire kuchengetedza makemikari.
HDPE zvakare ine yakanakisa kudzika-tembiricha kuramba, inokwanisa kuchengetedza kuomarara kwayo munzvimbo dzakaderera se -40 ° C pasina kuita brittle. Iyo inewo yakanaka magetsi ekudzivirira zvinhu, izvo zvakakonzera kushandiswa kwayo musheathing yewaya netambo.
HDPE yekugadzira maitiro uye nzira dzekugadzirisa
Mushure mekunzwisisa kuti ndechipi rudzi rwezvinhu HDPE, ngatitarisei maitiro ayo ekugadzira.HDPE inowanzo budiswa ne low pressure polymerization process, kureva pasi pekumanikidzwa kwemamiriro ezvinhu, neZiegler-Natta catalyst kana Phillips catalyst sechinhu chikuru chinokonzeresa, kuburikidza negasi chikamu, mhinduro. kana slurry polymerization nzira. Aya maitiro anoguma neHDPE ine yakaderera crystallinity uye yakakwirira crystallization rates, zvichikonzera yakakwirira density polyethylene zvinhu.
Zvishandiso zveHDPE zvine maitiro akanaka uye zvinogona kuumbwa nemhando dzakasiyana dzekugadzirisa, senge jekiseni kuumba, kuvhuvhuta kuumbwa uye extrusion molding. Nekuda kweizvozvo, HDPE inogona kugadzirwa kuita akawanda marudzi ezvigadzirwa zvakaita sepombi, mafirimu, mabhodhoro uye midziyo yepurasitiki.
Yakasiyana-siyana yenzvimbo dzekushandisa dzeHDPE
Nekuda kweakawanda akanakisa zvimiro zveHDPE zvinhu, inoshandiswa zvakanyanya mumaindasitiri akasiyana. Muchigadzirwa chekutakura, HDPE inowanzoshandiswa mukugadzirwa kwemhando dzakasiyana-siyana dzemabhodhoro epurasitiki, mabhodhoro ebhodhoro, mafirimu ekugadzira zvokudya, nezvimwewo. Muindasitiri yekuvaka, HDPE inoshandiswa kugadzira mapombi emvura nemapombi emvura uye pombi dzegasi, uye kukoromoka kwayo uye kuramba kwayo kunoita kuti ivimbike munzvimbo dzakaoma.
Muchikamu chekurima, HDPE inoshandiswa kugadzira mafirimu ekurima, mambure emumvuri uye zvimwe zvigadzirwa, uko kushorwa kwayo kweUV uye kusimba kunoita kuti zvirimwa zvichengetedzwe uye goho.HDPE inoshandiswawo zvakanyanya mukugadzira kusungirirwa kwewaya netambo, pamwe nemukati. zvakasiyana-siyana zvemakemikari-resistant matangi nemidziyo.
Mhedziso
HDPE ndeye thermoplastic polymer zvinhu zvine zvivakwa zvakanakisa senge kusimba kwepamusoro, makemikari kuramba, kushomeka kwekushisa uye kugadzirisa nyore. Iine huwandu hwakawanda hwekushandisa mumakemikari, kuvaka, zvekurima uye mamwe minda. Kana iwe uchiri kufunga kuti "chii chinonzi HDPE zvinhu", vimba kuti kuburikidza nechinyorwa ichi, une nzwisiso yakazara yehunhu uye mashandisirwo eHDPE, HDPE pasina mubvunzo ndechimwe chezvinhu zvinonyanya kukosha muindasitiri yemazuva ano.