Polyisobutylene (PIB)abu ne mara launi, mara ɗanɗano, mara guba, mai kauri ko rabin ƙarfi, juriyar zafi, juriyar iskar oxygen, juriyar ozone, juriyar yanayi, juriyar ultraviolet, juriyar acid da alkali da sauran sinadarai masu kyau. Polyisobutylene wani isobutylene ne mara launi, mara ƙamshi, kuma mara guba. Saboda hanyoyin shiri daban-daban da yanayin fasaha, adadin polyisobutylene na kwayoyin halitta ya bambanta a cikin kewayon da yawa. Yawancin nauyin kwayoyin halitta na samfurin ya kai sama da 10,000 zuwa 200,000 za a canza shi daga ruwa mai kauri zuwa rabin ƙarfi, sannan a canza shi zuwa elastomer mai kama da roba. Polyisobutylene yana da juriya ga acid, alkali, gishiri, ruwa, ozone da tsufa, kuma yana da kyakkyawan matsewar iska da rufin lantarki.
Kayayyakin sinadarai:Ruwa mai laushi zuwa rawaya mai haske ko kuma roba mai laushi (ƙarancin nauyin kwayoyin halitta yana da laushi kamar gelatin, babban nauyin kwayoyin halitta yana da ƙarfi kuma yana da laushi). Duk ƙamshi mara ƙamshi, mara wari ko ɗan wari. Matsakaicin nauyin kwayoyin halitta shine 200,000 ~ 87 miliyan. Ana iya narkewa a cikin benzene da diisobutyl Chemicalbook, ana iya miscive shi da polyvinyl acetate, kakin zuma, da sauransu, ba ya narkewa a cikin ruwa, barasa da sauran abubuwan narkewa na polar. Yana iya sa sukarin danko ya sami laushi mai kyau a ƙananan zafin jiki, kuma yana da wasu plasticity a babban zafin jiki don rama ƙarancin polyvinyl acetate lokacin da yake sanyi, yanayi mai zafi da kuma laushi mai yawa lokacin da ya dace da zafin baki.
Aikace-aikace:An san PIB da kyawawan halayenta na rufewa da mannewa, waɗanda galibi ana amfani da su a cikin manne, rufi, da kuma mannewa. Sifofin PIB masu kama da roba sun sa ya zama kyakkyawan zaɓi don aikace-aikacen rufewa da haɗawa, domin yana taimakawa wajen samar da haɗin gwiwa mai ƙarfi da dorewa a wurare da yawa. Baya ga amfaninsa na yau da kullun, ana amfani da PIB a cikin kayan kwalliya da kayan kulawa na mutum saboda kyawawan halayensa na narkewa. Sau da yawa ana haɗa sinadarin tare da wasu sinadarai don ƙirƙirar samfuran da ke da laushi da jin daɗi na musamman.
PIB yana da amfani iri-iri a masana'antar abinci. Ana amfani da sinadarin a matsayin mai kauri, mai daidaita abinci, da kuma mai tsarkake abinci a cikin abincin da aka sarrafa. PIB kuma yana iya taimakawa wajen inganta laushi da daidaiton kayayyakin kamar ice cream, cingam, da kayan gasa. Amfanin PIB ya sa ya zama muhimmin sinadari ga masana'antun abinci.
Ana kuma amfani da PIB sosai a masana'antar likitanci. Sifofin sinadarin ba su da guba sun sa ya dace a yi amfani da shi a aikace-aikacen likita. Sau da yawa ana amfani da sinadarin a matsayin mai daidaita alluran rigakafi, da kuma wani sinadari a cikin magunguna da yawa. Yanayin PIB na hydrophobic yana taimaka masa ya manne da fata, wanda hakan ya sa ya zama da amfani wajen samar da manne na likitanci.
Halaye:Polyisobutylene yana da halayen sinadarai na hadaddun hydrocarbon mai cike da sinadarai, kuma rukunin methyl na sarkar gefe yana da rarrabawa mai daidaito, wanda shine polymer na musamman. Yanayin haɗuwa da halayen polyisobutylene ya dogara ne akan nauyin kwayoyin halittarsa da rarraba nauyin kwayoyin halitta. Lokacin da matsakaicin nauyin kwayoyin halitta ya kasance tsakanin 70000 ~ 90000, polyisobutylene yana canzawa daga ruwa mai juyawa zuwa mai roba. Gabaɗaya, gwargwadon girman nauyin kwayoyin halitta na polyisobutylene an raba shi zuwa jerin masu zuwa: ƙarancin nauyin kwayoyin halitta polyisobutylene (yawan matsakaicin nauyin kwayoyin halitta = 200-10000); matsakaicin nauyin kwayoyin halitta polyisobutylene (yawan matsakaicin nauyin kwayoyin halitta = 20000-45,000); Babban nauyin kwayoyin halitta polyisobutylene (yawan matsakaicin nauyin kwayoyin halitta = 75,000-600,000); Babban nauyin kwayoyin halitta polyisobutylene (yawan matsakaicin nauyin kwayoyin halitta ya fi 760000).
1. Matsewar iska
Ɗaya daga cikin manyan halayen polyisobutylene shine ƙarfinsa na iska mai kyau. Saboda kasancewar ƙungiyoyin methyl guda biyu da aka maye gurbinsu, motsi na sarkar kwayoyin halitta yana da jinkiri kuma ƙaramin girmansa yana da ƙarami. Wannan yana haifar da ƙarancin yawan watsawa da kuma iskar gas.
2. Narkewa
Polyisobutylene yana narkewa a cikin aliphatic hydrocarbon, aromatic hydrocarbon, fetur, naphthene, man ma'adinai, chlorine hydrocarbon da carbon monosulfide. An narkar da shi kaɗan a cikin manyan barasa da cuku, ko kuma ya kumbura a cikin barasa, ethers, monomers, ketones da sauran sinadarai masu narkewa da man dabbobi da kayan lambu, matakin kumburi yana ƙaruwa tare da ƙaruwar tsawon sarkar carbon mai narkewa; Ba ya narkewa a cikin ƙananan barasa (kamar methanol, ethanol, isopropyl alcohol, ethylene glycol da coethylene glycol), ketones (kamar acetone, methyl ethyl ketone) da glacial acetic acid.
3. Juriyar sinadarai
Polyisobutylene yana da juriya ga acid da alkali. Kamar ammonia, hydrochloric acid, 60% hydrofluoric acid, lead acetate ruwa mai ruwa, 85% phosphoric acid, 40% sodium hydroxide, cikakken ruwan gishiri, 800} sulfuric acid, 38% sulfuric acid + 14% nitric acid ya lalace, Duk da haka, ba zai iya tsayayya da yashewar sinadarai masu ƙarfi ba, sinadarai masu ƙarfi masu rauni (kamar potassium permanganate 60%), wasu sinadarai masu zafi masu ƙarfi (kamar 373K acetic acid) da halogens (fluorine, chlorine, hamada).
Shiryawa: ganga 180KG
Ajiya: A adana a wuri mai sanyi, busasshe, tare da kariya daga rana yayin jigilar kaya.
A ƙarshe, PIB abu ne mai mahimmanci wanda ke da aikace-aikace iri-iri a masana'antu daban-daban. Kyakkyawan halayensa na rufewa da mannewa, da kuma yadda yake narkewa da kuma sauƙin amfani, sun sa ya dace da amfani a cikin kayan kwalliya, kulawa ta mutum, abinci, da kuma masana'antar likitanci. A matsayinmu na babban mai samar da PIB, mun himmatu wajen samar wa abokan cinikinmu kayayyaki da ayyuka mafi inganci don biyan buƙatun masana'antar su.
Lokacin Saƙo: Yuni-19-2023