ausilali o paipa palasitika gaosia tomai faapitoa

22 years continuously developing of experience in the belling industry.

Lelei o monomer (EPDM) paʻu

O le sapalai o le suavai paipa faiga masani ona faʻaaogaina EPDM paʻu mama faʻamau faʻamau , ua faʻasolosolo faʻaaogaina i Saina. Faʻatusatusa i isi masani faʻamau faʻamau faʻamau, e i ai lelei aneti-matutua meatotino.

E tusa ai ma lipoti talafeagai suʻega, o le ethylene propylene diene monomer (EPDM) paʻu e masani ona matua mo le 23 tausaga ma le vaega compression rate o 30%, ma o le compression seti e laititi atu i le 10%; Mo isi paʻu masani, pe a fai o le vaega faʻatonutonu fua o le 30%, o le faʻasolosolo faʻasolosolo deformation tumau o le a sili atu i le 10% pe a maeʻa le soifua matua mo ni nai tausaga. I totonu o le auala o loʻo iai le 50 ppm osone, o le taimi e taʻe ai le ethylene propylene diene monomer (EPDM) paʻu e sili atu i le 150 itula peʻa tumau le faʻatamaia o le 30%; Na paʻu ni nai itula i le Butyl rubber. I le auala o loʻo iai le 100 ppm osone, o le EPDM paʻu e le mafai ona taʻei pe a maeʻa le 2430 itula; O le paʻu o le paʻu sa i ai se paʻapa tele i naʻo le 534 itula, ae o le neoprene na pa i le 46 itula.
O le eseʻesega molelaʻiga uiga o le ethylene propylene diene monomer (EPDM) tele fuafuaina le eseesega faʻatinoga o paʻu faʻamau faʻamau mama: i le taimi nei, o le molemoli faʻavae o paʻu masani e pei o le styrene butadiene rubber (SBR) ma natural rubber (NR) lautele faʻaaogaina aofia ai se tele numera o CC unsaturated lua faʻamau, ia e faigofie lava ona tali atu ma gaioiga mea i le ea poʻo feololo (pei o le osone, okesene, uʻamea ions, suia, ma isi), Faʻapaʻu paʻu molemala filifili motusia, crosslinking ma isi matutua, ina ia le paʻu leiloa gaugauina ma taitai atu ai i le faʻamau faʻailoga; O le molelaula faʻavae o le ethylene propylene diene monomer (EPDM) e tele lava ona aofia ai fusi CH. Ona o le le lava o polarity, maualalo unsaturation, maualuga vailaʻau mautu ma sili lelei tetee vailaʻau, e talafeagai mo eseese polar vailaʻau, pei o le ava malosi, acid (acetic acid, hydrochloric acid, ma isi), malosi alkali (sodium hydroxide), oxidant (hydrogen peroxide, hypochlorous acid, sodium perbromate), vailaau faʻamama, manu ma fualaʻau fualaʻau Ketones ma isi esters e sili atu le teteʻe ile umi taimi faʻaalia. O a latou meatotino (ae maise lava meatotino e teteʻe i le matua) e sili atu ona lelei nai lo meatotino a le SBR ma le NR.

Na matou gaosia EPDM paʻu mama uʻamea i totonu, e talafeagai mo a matou Rieber belling masini, pe a maeʻa le socketing, o paʻu mama ua seti totonu ma e le mafai ona aveʻese. O le faʻamaufaʻailoga e sili ona faʻaleleia ma tele faʻaaoga mo vai vai. Lenei lapoʻa e mai 50mm i le 1200mm, ma e mafai foi ona tatou gaosia o manaʻoga tagata e manaʻomia.

 

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Taimi Post: Aokuso-05-2021