Butadiene: He Rauemi Mata Makutu e Wetewete ana i te Auahatanga o ngā Ahumahi Kanorau

I roto i te whetū kanapa o te umanga matū, he whetu kanapa te butadiene. He hau kore tae, he kakara kakara ngoikore. Ahakoa te āhua noa, kei roto i te pūngao nui ka taea te huri i te ao.

Ka taea te kī ko te Butadiene te "toa" i roto i te umanga rapa hangai. He maha ngā rapa mahi-teitei pērā i te rapa styrene-butadiene, te rapa cis-polibutadiene, te rapa nitrile-butadiene, me te rapa chloroprene e whakawhirinaki ana ki te butadiene, te "kaihanga" matua. Ahakoa ko te ātete ki te kakahu me te pupuri o ngā potae motuka i runga i ngā āhuatanga rori uaua, ko te tiaki pono rānei o ngā hiri rapa i roto i ngā taiao tino kino, ka whai wāhi puku te butadiene i muri i ngā whakaaturanga.

Heoi anō, e tiaho ana te butadiene i runga i te atamira o ngā kapia kirihou. I te whanaketanga kaha o te umanga kirihou styrene, ka mahi tahi te butadiene me te styrene mā te copolymerization, ka whānau mai he raupapa o ngā "rauemi makutu" me ngā tono whānui, pērā i te kapia ABS me te kapia SBS. Mai i ngā anga pakari o ngā hua hiko ki ngā wāhanga huatau o roto o ngā motuka, ka whakawhiwhia e ēnei kapia mahi-teitei te kounga pai ki ngā hua nā ō rātou āhuatanga tino pai.

Hei rauemi matū taketake nui, ka horapa te "toronga" o te butadiene ki te hanga i ngā matū matua pēnei i te ethylidene norbornene, 1,4-butanediol, me te adiponitrile. Ka hurihia ēnei hua hei kirihou hangarau, te nairona 66, me ētahi atu, e whakamahia whānuitia ana i roto i ngā mara teitei pēnei i te rererangi me te hanga miihini, ka noho hei kaha nui ki te whakatairanga i te ahunga whakamua o te ahumahi hou.

I roto i te ao o ngā matū pai, ka nui ake te ataahua ahurei o te butadiene. Ko ngā matū anthraquinone i hangaia e te tauhohenga me ngā matū dieneophile ngoikore-irahiko he takawaenga matua mō ngā tae, ngā patu harore, me ngā patu pepeke. Ko te anhydride tetrahydrophthalic i whiwhihia e te tauhohenga me te anhydride maleic ka taea te whakamahi hei rongoā me te kirihou mō ngā kapia polyester me ngā kapia epoxy, e wero ana i te kaha hou ki te whakapai ake i ngā āhuatanga o te rauemi.

Ko te whiriwhiri i te butadiene ko te whiriwhiri i te auahatanga me te kounga, me te whiriwhiri ki te iriti i ngā āheinga mutunga kore o te auahatanga o ngā ahumahi kanorau! Kia mahi tahi tātou, kia hanga he heke mai pai ake mō te ahumahi matū me te butadiene hei pou.