He aha ka ka mall haʻilula o isoprene

He aha ka isoprene? Ke mau haʻilula o ka hui kuleana homologous puke diene hydrocarbons, i ka haku mele 'ana CnH2n-2. Mākou kālailai kekahi mau ki ina hana o ka wa hoomakaukau ia no ka Nine Inch i huiʻia, a ua loaʻa mai i ka kumu o laulā o ia mea.

Pōkole hōʻike o ke kino ai ka waiwai

E helu i ka walaʻauʻana physical waiwai o ka isoprene. Kēia diene hydrocarbon -toxic, he negligible solubility i loko o ka wai. High nā hoʻohui like o keia k i narcotic hopena. ʻO kā mākou allowable lehulehu, hewa ole i kānaka, ua manaoia e e 40 mg / knm ^3. Me ka mahuahua o keia anakahi mea 2-isoprene-1.3 mai ka hopena maikaʻi 'ole ma o ka kanaka psyche. Ma lalo o maʻamau rula, o ka waiwai o ka colorless yiaeaiiacaaeneiie wai a me ka haʻahaʻa baila aʻela i wahi.

No Nine Inch waiwai

He aha characterizes ka mall haʻilula o isoprene? mau kaulua paa ana i noho i loko o ka haku mele 'ana o ka ke aloha i huiʻia. Ka mea i emi iho ka kumu o Nine Inch hana kūleʻa i 'elele diene i huiʻia me ka'ē aʻe ke aloha a me ka'okanikaʻole waiwai. Isoprene ua hala loa ke puana oxidized ma ka lewa oxygen, ai ka naoh huahana i peroxides.

polymerization

E i loko o ka polymerization o isoprene? Ke mau haʻilula o ka papa no a ka hydrocarbon i ka palapala CnH2n-2. Like lālā 'ē aʻe o ka homologous moʻo o 1,3-butadiene, isoprene hiki ke ho okumu i ke kiʻekiʻe-hakakino hui.

I lawe mai i ka polymerization kaʻina hana o ke kahua o Kisa no lakou, a māhū polyisoprene, i nā analogues o maoli laholio.

Makaukau o maoli laholio

He aha isoprene? Nā reactions e ana i ka mea hookahi manawa pili me ka huli ana o ka isoprene lātoma i loko o ka pīlali - polyisoprene. No ka hoʻokaʻawale o maoli laholio me ka 'ole like no 2-1,3-metilbutadienom, pili latex o Tropical laau.

Ua kūpono wai i na hoopai ana a hiki i ka vulcanization iapaau ana iloko olaila i loko o ka sulfur koloriside. Ma keia Nine Inch naoh laholio absorbs kekahi luaipele, e loaa plasticity, elasticity. Ke polymerization huahana ua ku paa auanei i ka wela,ʻano pākīkē Nine Inch. Ke mall haʻilula o isoprene wehewehe i ke kahe 'ano o ka vulcanization kaʻina.

Inā keia Nine Inch AaOIeIOUIeXAOAaIN, e lawe i ka luaipele ma ka laulā o ka 25 i ka 40 pakeneka, hiki ke loaa'ēboni i makana nou. Keia mea ua kiʻekiʻe ikaika, ua hoʻohana 'ia me ka maikaʻi hō'īpale mea. Ke mall haʻilula o isoprene, i hele mai me ka luaipele i ka leo, he ole kaulua paa. Ua wehewehe i ka huina hoonui me nā hale a me kona me mechanical ikaika.

Polyisoprene rubbers loaʻa a pau polymers hoʻohana ma o ka hana o ka mokulele, ulia kaʻa, paikikala keʻena a me ka papale hainaka.

He aha hou aʻe hiki ke hai aku ia mall haʻilula isoprene? He hiki no hou naoh o ke kaulua makaukau na kaula paa a me nā lātoma galogenovdorodov, halogens, hydrogen, wai. Mau reactions hoao isoprene no a hiki i ka papa o unsaturated hydrocarbons.

Nā Papahana no ka mea hanalima makaukau o

He nui na ano o ka hanalima? Iecaianoaaiiuo o isoprene. No ka mea he nui, ma ka reacting acetylene me ka acetone naoh komo ai ho okumu ana i waena metibutinola. Ma hope o kona hydrogenation, ukali ma dehydration o ka hua isoprene. Ua mea i hiki ke loaa 2-methylbutadiene-1,3 propylene. Ma ke koho ana o catalysts hiki e hoʻohuiʻia me nā waiwai e loaa methane.

Ka hoʻohana o isoprene

Ke bulk o ka hua isoprene ua hoʻohana 'ia no ka hoʻololi kemikala o isoprene laholio. He Aloha physical a me ka Nine Inch ano mea kokoke'ālike i kūlohelohe mea. Additional palapala noi no ka hoʻopauʻana o ke kiʻekiʻe-hakakino hui i kapaʻia ka hana o ka ulia kaʻa papale hainaka.

Ma waho aʻeo no Kisa no-isomer, i waena o ka polymerization huahana he mea ka māhū isomer kekahi, me nā 'ano o ka gutta percha. He mea i hana hanalima noi. Kēia polymeric mea mea e hana i kekahi mea poepoe no ka holoholona hihiu o ke kolepa me pono me no ka? Iecaianoaaiiie o'īpale o ka pila kaula. Mawaena o ka nui noi nāʻoihana hiki e kūlana isoprene hoʻololi kemikala o polymeric mea i hana i ka styrene-isoprene-styrene. Products o kēia 'ano i hoʻohana like thermoplastic mea, adhesives, puʻe ikepili koʻikoʻi.

Isoprene ua koi 'ia no ka hoʻololi kemikala o butyl laholio, kona laupaʻi maʻiʻo i loko o ka mea, ke hele mai i ka ekolu pakeneka.

Mai ka hopena o ka hope kenekulia i loko o ka United States i ke ahulau kalepa? Iecaianoaaiiuo o terpenes mai i kaʻai hui o isoprene, acetylene, acetone. Ke enehana, a ua nānā 'ana ma luna o kēia hana, ke komo pū kekahi mau-ʻanuʻu hoʻololi kemikala.