Ndedzipi mhando dzemabhegi akarukwa

Polyethylene (PE) inonyanya kugadzirwa kune dzimwe nyika, uyePolypropylene(PP) inonyanya kugadzirwa muChina.Iyo imhando ye thermoplastic resin yakagadzirwa ne polymerization ye ethylene.Muindasitiri, copolymers ethylene ine shoma shoma α - olefins inosanganisirwawo.Polyethylene haina kunhuwa, haina chepfu, ine wakisi, ine yakanakisa kudzikira tembiricha kuramba (tembiricha yakaderera inogona kusvika - 70 ～ - 100 ℃), yakanaka kugadzikana kwekemikari, inoshingirira kune yakawanda acid uye alkali erosion (isingamirire oxidizing acid), isinganyunguke mune zvese zvinonyungudutsa. patembiricha yekamuri, kunyura kwemvura yakaderera uye yakanakisa magetsi ekudzivirira;asi polyethylene inonyatsonzwa kushushikana kwezvakatipoteredza (kemikari uye mechanical chiito) Kupisa kwekuchembera kunopesana kwakashata.Zvinhu zve polyethylene zvinosiyana kubva kune zvakasiyana-siyana kusvika kune zvakasiyana-siyana, kunyanya zvichienderana nekugadzirwa kwema molecular uye density.Kusiyana kwakasiyana (0.91-0.96 g / cm3) yezvigadzirwa zvinogona kuwanikwa nenzira dzakasiyana dzekugadzira.

Polyethylene inogona kugadziriswa nenzira yekuumba ye general thermoplastic (ona mapurasitiki ekugadzirisa).Inoshandiswa zvakanyanya mukugadzira mafirimu, midziyo, mapaipi, monofilaments, waya uye tambo, zvinodiwa zvezuva nezuva, nezvimwewo inogona kushandiswa seyakakwirira-frequency insulating zvinhu zveTV, radar, nezvimwewo. Nekuvandudzwa kwe petrochemical industry, kugadzirwa. ye polyethylene yakagadzira nekukurumidza, uye inobuda inoverengera inosvika 1/4 yehuwandu hwekugadzirwa kwepurasitiki.Muna 1983, huwandu hwekugadzirwa kwepolyethylene munyika yose hwaiva 24.65 MT, uye kukwanisa kwechirimwa chiri kuvakwa chaiva 3.16 Mt.

Polypropylene(PP)

A thermoplastic resin inowanikwa ne polymerization yepropylene.Kune matatu magadzirirwo eisotactic substance, random substance uye syndiotactic substance.Isotactic chinhu ndicho chikamu chikuru chezvigadzirwa zvemaindasitiri.Polypropyleneinosanganisirawo copolymers yepropylene ine zvishoma ethylene.Kazhinji translucent isina ruvara yakasimba, isina hwema isina chepfu.Nekuda kwechimiro chayo chenguva dzose uye yakakwira crystallization, nzvimbo yekunyunguduka yakakwira kusvika 167 ℃, uye zvigadzirwa zvinogona kuomeswa nemhepo.Density ndeye 0.90g/cm3, inova ndiyo yakareruka purasitiki.Corrosion resistance, tensile simba 30MPa, simba, rigidity uye pachena zviri nani pane polyethylene.Izvo zvipingamupinyi ndezvakashata zvakaderera tembiricha inokanganisa kuramba uye kuchembera kuri nyore, izvo zvinogona kukundwa nekugadzirisa uye nekuwedzera antioxidant zvakateerana.

Ruvara rwemabhegi akarukwakazhinji ichena kana grey chena, isina chepfu uye haina kuravira, uye kazhinji haina kukuvadza kumuviri wemunhu.Kunyange zvazvo yakagadzirwa nemapurasitiki emakemikari akasiyana-siyana, kuchengetedza kwayo kwezvakatipoteredza kwakasimba, uye simba rayo rekugadzirisa zvakare rakakura;

Mabhegi akarukwas anoshandiswa zvakanyanya, kunyanya kurongedza uye kurongedza zvinyorwa zvakasiyana, uye zvakanyanya kushandiswa muindasitiri;

Plastikimabhegi akarukwainogadzirwa nePolypropyleneresin sechinhu chikuru mbishi, iyo inoburitswa uye yakatambanudzwa kuita filament yakati sandara, yozorukwa yoitwa bhegi.

Composite plastikimabhegi akarukwainogadzirwa nepurasitiki yakarukwa jira nekukanda tepi.

Iyi nhevedzano yezvigadzirwa inoshandiswa kurongedza hupfu kana granular yakasimba zvinhu uye zvinochinjika zvinyorwa.Ipurasitiki yakasanganiswamabhegi akarukwayakakamurwa kuita maviri mubhegi rimwe uye matatu mubhegi rimwe zvinoenderana nehukuru hwezvinhu.

Zvinoenderana neiyo nzira yekusona, inogona kukamurwa kuita yekusona yepasi bhegi, kusona kumucheto bhegi rezasi, bhegi rekuisa uye bhegi rekusonesa.

Zvinoenderana nehupamhi hunoshanda hwebhegi, inogona kukamurwa kuita 350, 450, 500, 550, 600, 650 uye 700mm, uye iyo yakakosha dhizaini ichabvumiranwa nemutengesi uye anokumbira.