Polyisobutylene (PIB)

Polyisobutylene (PIB)shi ne mara launi, marar ɗanɗano, maras guba mai kauri ko tsaka-tsakin abu, juriya mai zafi, juriya na oxygen, juriya na ozone, juriya na yanayi, juriya na ultraviolet, juriya na acid da alkali da sauran sinadarai masu kyau.Polyisobutylene ba shi da launi, mara wari, isobutylene homopolymer mara guba.Saboda hanyoyin shirye-shirye daban-daban da yanayin fasaha, adadin littafin sinadarai na ƙwayoyin polyisobutylene ya bambanta a cikin kewayo mai yawa.Yawancin nauyin kwayoyin halitta na samfurin ya kai sama da 10,000 zuwa 200,000 za a canza su daga ruwa mai kauri zuwa wani ɗan ƙaramin ƙarfi, sa'an nan kuma canzawa zuwa wani nau'i mai kama da roba.Polyisobutylene yana da juriya ga acid, alkali, gishiri, ruwa, ozone da tsufa, kuma yana da kyakyawan matsewar iska da kuma rufin lantarki.

Abubuwan sinadarai:ruwa mara launi zuwa haske rawaya danko ko roba roba semisolid (ƙananan kwayoyin nauyi ne taushi gelatinous, high kwayoyin nauyi ne ductile da na roba).Duk wani wari mara wari ko wari ko dan kadan.Matsakaicin nauyin kwayoyin halitta shine 200,000 ~ 87 miliyan.Mai narkewa a cikin benzene da diisobutyl Chemicalbook, na iya zama miscible da polyvinyl acetate, kakin zuma, da dai sauransu, insoluble a cikin ruwa, barasa da sauran iyakacin duniya kaushi.Yana iya sa sukarin danko ya sami laushi mai kyau a ƙananan zafin jiki, kuma yana da wasu filastik a babban zafin jiki don daidaitawa ga kasawar polyvinyl acetate lokacin sanyi, yanayin zafi da laushi mai yawa lokacin da ya hadu da zafin jiki.

Aikace-aikace:PIB an san shi don kyakkyawan hatiminsa da kaddarorin mannewa, waɗanda galibi ana amfani da su a cikin mannewa, sutura, da manne.PIB's roba-kamar kaddarorin sanya shi kyakkyawan zaɓi don hatimi da aikace-aikacen haɗin gwiwa, saboda yana taimakawa wajen samar da haɗin gwiwa mai ƙarfi da dorewa a cikin saitunan da yawa.Baya ga amfaninsa na yau da kullun, ana amfani da PIB a cikin kayan kwalliya da abubuwan kulawa na sirri saboda kyawawan kaddarorin sa na narkewa.Sau da yawa ana haɗuwa da abu tare da sauran sinadaran don ƙirƙirar samfurori tare da nau'i na musamman da jin dadi.

PIB yana da aikace-aikace da yawa a cikin masana'antar abinci kuma.Ana amfani da abun da yawa azaman mai kauri, stabilizer, da emulsifier a cikin abincin da aka sarrafa.Hakanan PIB na iya taimakawa wajen haɓaka ƙima da daidaiton samfuran kamar ice cream, cingam, da kayan gasa.Ƙwararren PIB ya sa ya zama muhimmin sashi ga masana'antun a cikin masana'antar abinci.

Hakanan ana amfani da PIB sosai a masana'antar likitanci.Abubuwan abubuwan da ba su da guba sun sa ya dace don amfani a aikace-aikacen likita.Ana amfani da abu sau da yawa azaman stabilizer a cikin alluran rigakafi, da kuma wani sashi a cikin magunguna da yawa.Halin hydrophobic na PIB yana taimaka mata ta manne da fata, yana sa ta zama mai amfani wajen samar da adhesives na likita.

Halaye:Polyisobutylene yana da kaddarorin sinadarai na madaidaitan mahadi na hydrocarbon, kuma rukunin methyl ɗin gefen sarkar yana da madaidaicin rarraba, wanda shine polymer na musamman.Halin tarawa da kaddarorin polyisobutylene sun dogara ne akan nauyin kwayoyin halitta da rarraba nauyin kwayoyin halitta.Lokacin da danko matsakaicin nauyin kwayoyin yana cikin kewayon 70000 ~ 90000, polyisobutylene yana canzawa daga ruwa mai juyi zuwa mai ƙarfi na roba.Gabaɗaya, bisa ga girman girman nauyin kwayoyin halitta na polyisobutylene an raba su zuwa jerin masu zuwa: ƙananan nauyin kwayoyin polyisobutylene (matsakaicin nauyin kwayoyin halitta = 200-10000);Matsakaicin nauyin polyisobutylene (matsakaicin nauyin kwayoyin halitta = 20000-45,000);Nauyin polyisobutylene mai girma (matsakaicin matsakaicin adadin kwayoyin halitta = 75,000-600,000);Maɗaukakin nau'in nau'in polyisobutylene (yawan matsakaicin nauyin kwayoyin halitta fiye da 760000).

1. Tsantsar iska

Ɗaya daga cikin fitattun halaye na polyisobutylene shine kyakkyawan matsewar iska.Saboda kasancewar ƙungiyoyin methyl guda biyu da aka maye gurbinsu, motsin sarkar kwayoyin halitta yana jinkirin kuma ƙarar kyauta kaɗan ne.Wannan yana haifar da ƙarancin watsawa da ƙarancin iskar gas.

2. Solubility

Polyisobutylene ne mai narkewa a cikin aliphatic hydrocarbon, aromatic hydrocarbon, fetur, naphthene, ma'adinai mai, chlorinated hydrocarbon da carbon monosulfide.An narkar da wani sashi a cikin mafi girma alcohols da cheeses, ko kumbura a cikin alcohols, ethers, monomers, ketones da sauran kaushi da dabba da kayan lambu mai, da mataki na kumburi yana ƙaruwa tare da karuwa da ƙarfi carbon tsawon tsawon;Rashin narkewa a cikin ƙananan barasa (irin su methanol, ethanol, isopropyl barasa, ethylene glycol da coethylene glycol), ketones (kamar acetone, methyl ethyl ketone) da glacial acetic acid.

3. Chemical juriya

Polyisobutylene yana da tsayayya ga acid da alkali.Kamar ammonia, hydrochloric acid, 60% hydrofluoric acid, gubar acetate ruwa bayani, 85% phosphoric acid, 40% sodium hydroxide, cikakken gishiri ruwa, 800} sulfuric acid, 38% sulfuric acid +14% nitric acid yashwa, Duk da haka, shi ba zai iya tsayayya da yashewar oxidants mai ƙarfi, zafi mai rauni oxidants (kamar 60% potassium permanganate), wasu acid mai zafi mai ƙarfi (kamar 373K acetic acid) da halogens (fluorine, chlorine, hamada).

Shiryawa: 180KG ganga

Adana: Ajiye a wuri mai sanyi, mai iska, busasshen wuri tare da kariyar rana yayin sufuri.

A ƙarshe, PIB abu ne mai mahimmanci tare da ɗimbin aikace-aikace a cikin masana'antu daban-daban.Kyakkyawan hatiminsa da kaddarorin mannewa, kazalika da solubility da versatility, sanya shi manufa don aikace-aikace a cikin kayan shafawa, kulawa na sirri, abinci, da masana'antar likita.A matsayinmu na manyan masu samar da PIB, mun sadaukar da mu don samarwa abokan cinikinmu samfurori da ayyuka mafi inganci don biyan bukatun masana'antu.