Kayan roba na yau da kullun——Halayen EPDM
Riba:
Kyakkyawan juriya ga tsufa, juriya ga yanayi, rufin lantarki, juriya ga lalata sinadarai da kuma sassaucin tasiri.
Rashin amfani:
Saurin warkarwa a hankali; Yana da wuya a haɗu da sauran roba marasa cikawa, kuma mannewa kai da mannewa juna ba su da kyau sosai, don haka aikin sarrafawa bai yi kyau ba.
Kamfanin Ningbo Yokey Automotive Parts Co., Ltd ya mai da hankali kan magance matsalolin kayan roba na abokan ciniki da kuma tsara nau'ikan kayan aiki daban-daban bisa ga yanayin aikace-aikace daban-daban.
Kayayyaki: cikakkun bayanai
1. Ƙananan yawa da kuma cikawa mai yawa
Robar Ethylene propylene wani nau'in roba ne mai ƙarancin yawa na 0.87. Bugu da ƙari, ana iya cike mai mai yawa kuma ana iya ƙara abubuwan cikawa, wanda zai iya rage farashin kayayyakin roba kuma ya rama tsadar robar ethylene propylene da ba a sarrafa ba. Bugu da ƙari, ga robar ethylene propylene mai ƙimar Mooney mai yawa, makamashin jiki da na injiniya bayan cikawa mai yawa ba zai ragu da yawa ba.
2. Juriyar tsufa
Robar Ethylene propylene tana da juriya mai kyau ga yanayi, juriya ga ozone, juriya ga zafi, juriya ga acid da alkali, juriya ga tururin ruwa, daidaiton launi, aikin lantarki, cike mai da kuma ruwan zafin ɗaki. Ana iya amfani da samfuran robar Ethylene propylene na dogon lokaci a zafin 120 ℃, kuma ana iya amfani da su na ɗan lokaci ko kuma a lokaci-lokaci a zafin 150 - 200 ℃. Za a iya ƙara zafin amfani ta hanyar ƙara maganin antioxidant mai dacewa. Ana iya amfani da EPDM tare da peroxide a ƙarƙashin yanayi mai tsauri. Lokacin da yawan ozone na EPDM ya kai 50 ppm kuma lokacin shimfiɗawa ya kai 30%, EPDM zai iya kaiwa awanni 150 ba tare da fashewa ba.
3. Juriyar tsatsa
Saboda rashin polarity da ƙarancin cikar robar ethylene propylene, yana da kyakkyawan juriya ga sinadarai daban-daban na polarity kamar barasa, acid, alkali, oxidant, refrigerant, sabulun wanki, man dabbobi da kayan lambu, ketone da mai; Duk da haka, yana da ƙarancin kwanciyar hankali a cikin abubuwan da ke narkewa mai da ƙamshi (kamar fetur, benzene, da sauransu) da man ma'adinai. Aikin zai kuma ragu a ƙarƙashin tasirin acid mai ƙarfi na dogon lokaci. A cikin ISO/TO 7620, an tattara bayanai kan tasirin kusan sinadarai 400 na gas da ruwa akan kaddarorin roba daban-daban, kuma an ƙayyade maki 1-4 don nuna tasirinsu. Tasirin sinadarai masu lalata akan kaddarorin roba sune kamar haka:
Tasirin Ƙarar Kumburi/% Rage Taurin Kai ga Halaye
1<10<10 Ƙarami ko babu
2 10-20 <20 ƙarami
3 30-60<30 Matsakaici
4>60>30 mai tsanani
4. Juriyar tururin ruwa
EPDM tana da kyakkyawan juriya ga tururi kuma an kiyasta cewa ta fi ƙarfin juriya ga zafi. A cikin tururin da ke da zafi sosai na 230 ℃, bayyanar ba ta canzawa bayan kusan awanni 100. Duk da haka, a ƙarƙashin irin wannan yanayi, bayyanar robar fluorine, robar silicon, robar fluorosilicon, robar butyl, robar nitrile da robar halitta sun lalace sosai cikin ɗan gajeren lokaci.
5. Juriya ga ruwan da ke zafi sosai
Robar Ethylene propylene kuma tana da kyakkyawan juriya ga ruwan da ke dumamawa sosai, amma tana da alaƙa da duk tsarin vulcanization. Abubuwan da ke cikin robar ethylene propylene (EPR) da aka yi wa vulcanized da dimorphine disulfide da TMTD ba su canza sosai ba bayan an nutsar da su a cikin ruwan da aka yi wa zafi mai zafi na 125 ℃ na tsawon watanni 15, kuma ƙimar faɗaɗawa ta girma ta kasance 0.3% kawai.
6. Aikin lantarki
Robar Ethylene propylene tana da kyakkyawan kariya daga wutar lantarki da kuma juriya ga corona, kuma kaddarorin wutar lantarkinta sun fi na robar styrene butadiene, polyethylene mai chlorosulfonated, polyethylene da polyethylene mai haɗin gwiwa.
7. Juriya
Saboda robar ethylene propylene ba ta da wani abu da zai maye gurbinta a cikin tsarin kwayoyin halittarta da kuma ƙarancin kuzarin haɗin gwiwar kwayoyin halitta, sarkar kwayoyin halittarta na iya kiyaye sassauci a cikin kewayon da ya dace, wanda ya fi robar halitta da robar cis polybutadiene, kuma har yanzu tana iya kasancewa a yanayin zafi mai sauƙi.
8. Mannewa
Saboda rashin ƙungiyoyi masu aiki a cikin tsarin ƙwayoyin halitta na robar ethylene propylene, ƙarfin haɗin kai yana da ƙasa, kuma robar tana da sauƙin fesawa, don haka mannewa kai da mannewa juna ba su da kyau sosai.
Lokacin Saƙo: Oktoba-10-2022