Rauemi ritenga NBR/EPDM/FKM/SIL Mowhiti-O rapa

NBR

Ka hangaia te rapa nitrile mā te whakakotahitanga o te acrylonitrile me te butadiene. Ko te nui o te acrylonitrile kei waenga i te 18% ki te 50%. Ko te nui ake o te acrylonitrile, ko te pai ake o te ātete ki te hinu wahie hauwai, engari ko te mahi pāmahana iti he kino ake, ko te awhe pāmahana whānui ko -40~120 ℃. Ko te butanol tētahi o ngā rapa e whakamahia whānuitia ana mō ngā hiri hinu me ngā mowhiti-O.

Ngā Painga:

· He ātete pai ki te hinu, te wai, te whakarewa me te hinu pēhanga teitei.

· He pai te pēhanga, te ātete ki te kakahu me te roa.

Ngā ngoikoretanga:

· Kāore e pai mō ngā whakarewa porowhita pērā i te ketones, te ozone, ngā nitro hydrocarbons, te MEK me te chloroform. · Whakamahia mō te hanga tāke wahie, tāke hinu whakahinuhinu me ngā wāhanga rapa, inā koa ngā wāhanga hiri, whakamahia i roto i te hinu waipēhi hinu, te penehīni, te wai, te hinu silicon, te hinu silicon, te hinu whakahinuhinu diester, te hinu waipēhi ethylene glycol me ētahi atu momo wai. Koinei te hiri rapa e whakamahia whānuitia ana, ā, ko te utu iti rawa.

FKM

Rapa Waro Fluoro Ko tētahi o ngā momo rerekē i runga i te nui o te fluorine (hanganga monomer) o ngā ngota fluorine. He pai ake te ātete pāmahana teitei i te rapa silicone, he ātete matū pai rawa atu, he ātete ki te nuinga o te hinu me te whakarewa (haunga te ketone, te ester), te ātete huarere me te ātete ozone; He ngoikore te ātete makariri, ko te whānuitanga pāmahana whānui ko -20~250 ℃. Ka taea e te tauira motuhake te tu atu i te pāmahana iti tae atu ki te -40 ℃. Ngā Painga:

· Ātete wera ki te 250 ℃

· Ātete ki te nuinga o ngā hinu me ngā whakarewa, inā koa ngā waikawa katoa, ngā hinu aliphatic, ngā hinu kakara me ngā hinu kararehe me ngā hinu huawhenua

Ngā ngoikoretanga:

· Kāore i te tūtohutia mō ngā ketone, ngā esters iti te taumaha ngota me ngā ranunga kei roto he nitrate. · Ngā motuka, ngā locomotive, ngā miihini diesel me ngā pūnaha wahie.

SIL

Ko te mekameka matua o te rapa silicone he mea hanga ki te silicon (-si-O-Si) kua honoa ngātahi. He tino pai te ātete ki te wera, te ātete ki te makariri, te ātete ki te ozone, te ātete ki te koroheketanga o te hau. He pai te mahi ārai hiko. He ngoikore te kaha kume o te rapa noa, ā, kāore he ātete ki te hinu. Ngā Painga:

· Te kaha kume tae atu ki te 1500PSI me te ātete haehae tae atu ki te 88LBS i muri i te hanganga

· He pai te ngāwari me te pai o te whakapōturitanga o te pēhanga

· He ātete pai ki ngā whakarewa kūpapa

· He tino ātete ki te wera

· He ātete tino pai ki te makariri

· He ātete tino pai ki te horo o te ozone me te waikura

He tino pai te mahi ārai hiko

· He tino pai te ārai wera me te marara wera

Ngā ngoikoretanga:

· Kāore i te tūtohutia kia whakamahia i roto i te nuinga o ngā whakarewa kukū, ngā hinu, ngā waikawa kukū me te hauwai konutai kua whakaranua. · Ngā hiri, ngā wāhanga rapa rānei e whakamahia ana i roto i te umanga taputapu whare, pērā i ngā IPU hiko, ngā rino, ngā wāhanga rapa i roto i ngā oumu ngaruiti.

· Ngā hiri, ngā wāhanga rapa rānei i roto i te umanga hiko, pērā i ngā kī waea pūkoro, ngā ātete ru i roto i te DVD, ngā hiri i roto i ngā hononga taura, me ētahi atu.

· Ka hiritia ngā momo taonga katoa e pā ana ki te tinana tangata, pērā i ngā pounamu wai, ngā puna inu, me ētahi atu.

Epdm

Ka whakakotahihia te rapa Ethylene (PPO) mai i te Ethylene me te propylene ki roto i te mekameka matua, ā, he tino pai te ātete ki te wera, te ātete ki te koroheketanga, te ātete ki te ozone me te pumau, engari kāore e taea te tāpiri i te whanariki. Hei whakaoti i tēnei raruraru, ka whakauruhia he iti o te tuatoru o ngā wāhanga me te mekameka takirua ki roto i te mekameka matua o te EP, ka taea te hanga mā te tāpiri i te whanariki ki te EPDM. Ko te awhe pāmahana whānui ko -50~150 ℃. He tino pai te ātete ki ngā whakarewa porotaka pērā i te waipiro, te ketone, te glycol me te phosphate lipid waipēhi.

Ngā Painga:

· He ātete pai ki te huarere me te ātete ki te ozone

· He ātete pai ki te wai me te ātete matū

· Ka taea te whakamahi i ngā waipiro me ngā ketone

· Ātete ki te mamaoa pāmahana teitei, ātete pai ki te hau

Ngā ngoikoretanga:

· Kāore i te tūtohutia mō te kai, mō te pānga rānei ki te hauwai kakara. · He hiri mō te taiao kohu wai pāmahana teitei.

· Ngā hiri, ngā wāhanga rānei mō ngā taputapu kaukau.

· Ngā wāhanga rapa i roto i te pūnaha aukati (aukati).

· Ngā hiri i roto i ngā pūwhakamahana (ngā tāke wai o ngā motuka).