Te tātai, te mahi me te mahi kua whakarerekētia e te PE

Mīhini tango kirihou PE Ko tētahi o ngā kirihou e rima e whakamahia whānuitia ana. He kapia kirihou wera i hangaia mai i te whakakotahitanga o te monomer ethylene. Kāore he kakara, kāore he paitini, he rite te ahua ki te ware pi, he ātete pai ki te pāmahana iti me te pumau matū.

Hei tāpiritanga, he iti te mimiti wai o te PE, kāore e rewa i roto i ngā whakarewa whānui i te pāmahana rūma, ā, he pai rawa te ārai hiko. I runga i te tikanga whakapūhui, te taumaha ngota, me te hanganga mekameka, ka wehea ki te polyethylene kiato-teitei (HDPE), te polyethylene kiato-iti (LDPE), me te polyethylene kiato-iti raina. Polyethylene kiato-rahi (LLDPE) me te polyethylene taumaha ngota-tino-teitei (UHMWPE).

Nā te whānui o te whakamahinga, ka whakamahia pinepinetia te PE i muri i te whakarerekētanga, penei:

1. Tāpirihia te kapia LDPE, te kaihopu ārai-pūmau, me te pango waro ki roto i te mīhini whakaranu tere-rahi, whakaranua, ka whakaohokia kia ōrite, kātahi ka whakamahia he taputapu whakaputa hei whakaputa me te whakapūpū. Ko te pāmahana o te oko whakaputa he 150~160℃, ā, ko te tere o te miihini matua he 600~800 r/min. Ka taea e koe te tiki rauemi PE me te ātete rōrahi ≤10²Ω.cm, te ātete mata ≤10³Ω, te pūwāhi whakangawari Vicat >81℃, me ngā āhuatanga ārai-pūmau.

2. Tāpirihia te kapia HDPE, te kaihopu ārai-pūmau, te hinu mā, me te tae ki roto i te mīhini whakaranu tere-rahi, whakaranua, whakaohokia kia ōrite te tukanga whakarite, kātahi ka whakamahia he taputapu whakaputa hei whakaputa me te whakapūpū. I muri i te tapahi, te whakamaroke me te whakamātautau i te tauira, ko te ātete rōrahi he ≤10²Ω·cm, ko te kaha kume he 23MPa, ko te kaha haehae he 20MPa, ā, he āhuatanga tōna ka taea te tineia anō, ā, kāore e ngāwari ki te mura.

3. Tāpirihia te kapia HDPE (100), te elastomer polyethylene chlorinated (CPE) (10-20), te pango waro kawe (15-20) me ētahi atu tāpiringa tāpiringa ki te pāmahana tata ki te 155C, ka whakatikahia te tawhiti o te roera ki te mira tuwhera o te 1mm. Tāpirihia te HDPE, te CPE, te pango waro me ngā tāpiringa i roto i te raupapa, whakaranua mō te 8 ki te 10 meneti, whakaranua kia ōrite, whakamahia he roera 0.5mm kia toru ngā wā hei tuku i ngā papa, whakamataohia, kuruhia, kātahi ka whakamahia he extruder hei extrude me te granulate.

Ka taea te whiwhi i tētahi rauemi PE he pai ngā āhuatanga ārai-pūmau me ngā āhuatanga ā-tinana me ā-mīhini. Ina neke atu i te 20 ngā wāhanga o te nui o te pango waro kawe hiko, tata kore e rerekē te ātete o te mata o te rauemi, engari ka tino heke te kaha o tōna pānga me tōna roa i te wā whati.

Mā te tāpiri i te elastomer polyethylene chlorine kua whakakōkōhia, ehara i te mea ka whakaiti noa i te nui o te pango waro, engari ka pai ake hoki ngā āhuatanga ārai-pūmau o te rauemi hiato (ka whakaitihia te ātete mata ki te 1x107Ω) me ngā āhuatanga pānga.

4. HDPE, methylbenzene glycol, DBP, hinu pīni soya, triethanolamine, hinu mā, paraoa kānga, dicumyl peroxide, propylene glycol adipate, tāpirihia ia rauemi mata ki roto i te mīhini whakaranu tere-rahi kia rite ki te ōwehenga o te tauira, ka whakaohokia kia ōrite. Tāpirihia ki roto i te mīhini whakaranu o roto hei pokepoke i te pāmahana o te 170~175C me te tere hurihuri o te 900~950r/min. I muri i te whakaranu o roto, ka whakapūkarahia te rauemi kua whakaranua ki te mīhini whakaranu kia puta he pire. Ka whakanohoia ngā pire ki roto i te tāke wai hei whakamatao, kātahi ka whakamarokehia ki te pāmahana noa.

Ka taea te whakatau ko te kaha kume he 31~37MPa, ko te roa i te whati he 15%~18%, ko te kaha pānga o te rauemi he 3.1~4.0kJ/m, ko te kaha piko he 45~49MPa, ā, ko te tere pupuri kaha pānga 500h photoaging he 100%. Ko ngā rauemi he ātete rōrahi (4.4~4.8)x10^(7)Ω.cm.

4. Whakaranua te kapia HDPE, te copolymer butene-ethylene whakarerekē, te kaiārahi waro pango, te kaiārahi hononga silane KH-570, te whakakī CaCO3, te ware pi PE whakamarara, te hinu whakahinuhinu HSt, me te CaSt whakau i te tuatahi kia rite ki ngā ōwehenga o te tauira. Kia mahara, me hono tuatahi te whakakī. Kātahi ka tāpirihia ki te mīhini whakaranu ā-roto mō te whakaranu ā-roto. Kia tino whakamararatia, whakawhitia ki te extruder mō te extrusion me te granulation. Ka taea e koe te tiki i tētahi rauemi me te ātete mata o te 10^(8)Ω, te ātete rōrahi (20℃) o te 1x10²Ω·cm, te kaha kume o te 16.5MPa, me te roa o te 385%.