Ubumenyi bwibanze bwubwoko butatu bwibikoresho bya PE (I)

1. Polyethylene yuzuye cyane （HDPE）

HDPE ntabwo ari uburozi, uburyohe kandi nta mpumuro nziza, hamwe n'ubucucike bwa 0.940-0.976g / cm3.Nibicuruzwa bya polymerisiyasi munsi yumuvuduko muke munsi ya catalizike ya catalizike ya Ziegler, bityo polyethylene yuzuye cyane nayo yitwa polyethylene yumuvuduko muke.

Ibyiza:

HDPE ni ubwoko bwa resmoplastique resin hamwe na kristu nini kandi idafite polarite ikorwa na copolymerisation ya Ethylene.Kugaragara kwa HDPE yumwimerere ni amata yera, kandi birasobanutse kurwego runaka mubice bito.Ifite imbaraga zo kurwanya imiti myinshi yo mu nganda n’inganda, kandi irashobora kurwanya ruswa no gushonga kwa okiside ikomeye (acide nitricike yibanze), imyunyu-fatizo ya aside hamwe n’umuti ukomoka ku bimera (tetrachloride).Polimeri ntabwo ari hygroscopique kandi ifite imbaraga zo kurwanya imyuka y'amazi kandi irashobora gukoreshwa mubushuhe no kurwanya amazi.

Ikibura:

Ikibi ni uko kurwanya gusaza no guhangana n’ibidukikije bidakwiye nka LDPE, cyane cyane okiside yumuriro bizagabanya imikorere yayo, bityo HDPE ikongeramo antioxydants hamwe na UV yinjira mugihe ikozwe mumashanyarazi kugirango itezimbere imikorere yayo.ibitagenda neza.

2. Polyethylene nkeya （LDPE）

LDPE ntabwo ari uburozi, uburyohe kandi nta mpumuro nziza, hamwe n'ubucucike bwa 0.910-0.940g / cm3.Ihindurwa na ogisijeni cyangwa peroxide kama nkumusemburo munsi yumuvuduko mwinshi wa 100-300MPa.Yitwa kandi polyethylene yumuvuduko ukabije.LDPE ikunze kwitwa umuyoboro wa PE mu nganda zo kuhira.

Ibyiza:

Ubucucike buke bwa polyethylene nubwoko bworoshye cyane bwa polyethylene.Ugereranije na HDPE, ububobere bwayo (55% -65%) hamwe no koroshya ingingo (90-100 ℃) biri hasi;ifite ihinduka ryiza, kwaguka, gukorera mu mucyo, kurwanya ubukonje no gutunganya;imiti yacyo ituje neza, aside, alkali n'umunyu w'amazi;amashanyarazi meza hamwe no guhumeka ikirere;amazi make;gutwika byoroshye.Nibyoroshye muri kamere kandi bifite kwaguka kwiza, kubika amashanyarazi, gutuza imiti, gukora neza no kurwanya ubushyuhe buke (birashobora kwihanganira -70 ° C).

Ikibura:

Ingaruka ni uko imbaraga zayo za mashini, inzitizi yubushuhe, inzitizi ya gaze hamwe no kurwanya ibishishwa bikennye.Imiterere ya molekile ntabwo isanzwe ihagije, kristu (55% -65%) iri hasi, kandi aho gushonga kwa kristaline (108-126 ° C) nayo iri hasi.Imbaraga za mashini zayo ziri munsi yubwa polyethylene yuzuye cyane, kandi coefficente yayo idashobora kwangirika, kurwanya ubushyuhe hamwe no kurwanya gusaza kwizuba ni bibi.Antioxydants hamwe na UV ikurura kugirango ikemure ibitagenda neza.