1. Ma'anar roba
Kalmar "roba" ta fito ne daga yaren Indiyawa cau uchu, wanda ke nufin "bishiyar kuka".
Ma'anar a cikin ASTM D1566 shine kamar haka: roba wani abu ne wanda zai iya dawo da nakasar ta cikin sauri da inganci a ƙarƙashin babban nakasar kuma ana iya gyara shi.Ba za a iya narkar da robar da aka gyara ba (amma ana iya narkar da ita) a cikin abubuwan da suke tafasa kamar su benzene, methyl ethyl ketone, cakuda ethanol toluene, da dai sauransu. An miƙa robar ɗin da aka gyara zuwa sau biyu na ainihin tsawonsa a cikin ɗaki kuma a ajiye shi na minti daya.Bayan cire ƙarfin waje, zai iya murmurewa zuwa ƙasa da sau 1.5 tsawon sa na asali a cikin minti ɗaya.Gyaran da ake magana a kai a cikin ma'anar da gaske yana nufin ɓarna.
Ana iya haɗa sarkar kwayoyin halitta na roba.Lokacin da roba mai haɗin giciye ya lalace a ƙarƙashin ƙarfin waje, yana da ikon dawowa da sauri, kuma yana da kyawawan halaye na jiki da na inji da kwanciyar hankali na sinadarai.Roba mai haɗe-haɗe da ɗanɗano abu ne na roba.
Rubber wani abu ne na polymer, wanda ke da halaye masu yawa na irin wannan nau'in kayan, irin su ƙananan yawa, ƙananan ƙarancin ruwa, rufi, danko da tsufa na muhalli.Bugu da ƙari, roba yana da taushi da ƙananan ƙarfi.
2. Babban rarrabuwa na roba
An raba roba zuwa roba na halitta da roba na roba bisa ga albarkatun kasa.Ana iya raba shi zuwa toshe danyen roba, latex, robar ruwa da roba gwargwadon siffa.
Latex shine tarwatsawar ruwa na roba;Ruwan roba shine oligomer na roba, wanda gabaɗaya ruwa ne mai ɗanɗanowa kafin vulcanization;
Ana amfani da roba foda don sarrafa latex zuwa foda don batching da sarrafawa.
Thermoplastic roba da aka yi a cikin 1960s baya buƙatar ɓarnawar sinadarai, amma yana amfani da mahimman abubuwan sarrafa robobin thermoplastic don samarwa.Ana iya raba roba zuwa nau'in gaba ɗaya da nau'i na musamman bisa ga amfani.
3. Amfani da roba
Rubber ita ce ainihin albarkatun masana'antar roba, wacce ake amfani da ita sosai wajen kera tayoyi.roba hoses, kaset,roba mai tsayawa, igiyoyi da sauran kayayyakin roba.
4. Aikace-aikace na roba vulcanized kayayyakin
Ana haɓaka samfuran vulcanized na roba tare da masana'antar mota.Saurin haɓaka masana'antar kera motoci da masana'antar petrochemical a cikin shekarun 1960 ya inganta matakin samar da masana'antar roba;A cikin shekarun 1970s, don biyan buƙatun saurin gudu, aminci, kiyaye makamashi, kawar da gurɓataccen gurɓataccen iska da rigakafin gurɓataccen motoci, an haɓaka sabbin nau'ikan tayoyi.Danyen amfani da roba yana da adadi mai yawa a cikin sufuri.
Misali;Motar Jiefang mai nauyin tan 4 tana bukatar fiye da kilogiram 200 na kayayyakin roba, wani katafaren kujera mai kauri yana bukatar sanye da kayan roba fiye da kilogiram 300, jirgin tan 10000 yana bukatar kusan tan 10 na kayayyakin roba, kuma jirgin saman jet yana bukatar kusan. 600 kg na roba.A cikin ruwa, kasa da sufurin jiragen sama, babu wanda zai iya yin ba tare da kayan da aka lalatar da roba ba.
Lokacin aikawa: Janairu-03-2023