Ukwahlula kunye nokusetyenziswa kwerabha

1. Inkcazo yerabha

Igama elithi “irabha” lisuka kulwimi lwaseIndiya elithi cau uchu, elithetha “umthi wokulila”.

Inkcazo kwi-ASTM D1566 ngolu hlobo lulandelayo: i-rubber yinto enokukhawuleza kwaye ibuyisele ngokufanelekileyo i-deformation yayo phantsi kwe-deformation enkulu kwaye inokuguqulwa.Irabha elungisiweyo ayikwazi (kodwa inganyibilikiswa) kwizinyibilikisi ezibilayo ezifana ne-benzene, i-methyl ethyl ketone, umxube we-ethanol toluene, njl. njl.Emva kokususa amandla angaphandle, inokubuyisela ngaphantsi kwe-1.5 ubude bayo bokuqala ngomzuzu omnye.Uhlengahlengiso ekubhekiselwe kulo kwinkcazo ngokusisiseko lubhekisa kuvulcanization.

Ikhonkco le-molekyuli yerabha inokudityaniswa.Xa i-rubber edibeneyo edibeneyo ikhubazekile phantsi kwamandla angaphandle, inamandla okubuyisela ngokukhawuleza, kwaye ineempawu ezintle zomzimba kunye noomatshini kunye nokuzinza kweekhemikhali.Irabha edityanisiweyo kancinci yinto eqhelekileyo enwebekayo ephezulu.

I-Rubber yimpahla ye-polymer, eneempawu ezininzi eziqhelekileyo zolu hlobo lwezixhobo, ezifana nokuxinana okuphantsi, ukunyanzeliswa okuncinci kumanzi, ukugquma, i-viscoelasticity kunye nokuguga kokusingqongileyo.Ukongeza, irabha ithambile kwaye iphantsi kobulukhuni.

2. Uluhlu oluphambili lwerabha

Irabha yohlulwe kwirubha yendalo kunye nerabha yokwenziwa ngokwezinto eziluhlaza.Ingohlulwa ibe yirabha ekrwada yebhloko, i-latex, irabha engamanzi kunye nerabha engumgubo ngokwemilo.

I-Latex yi-colloidal yamanzi ukusasazwa kwerabha;Irabha elulwelo yi-oligomer yerabha, edla ngokuba lulwelo lwe-viscous phambi kokuba ivulcanization;

Irabha yomgubo isetyenziselwa ukusetyenzwa kwe-latex ibe ngumgubo wokuxutywa nokusetyenzwa.

Irabha ye-thermoplastic eyaphuhliswa kwiminyaka yee-1960 ayifuni i-vulcanization yeekhemikhali, kodwa isebenzisa izinto eziyimfuneko zokulungisa iiplastiki ze-thermoplastic ukwenza.I-Rubber inokwahlulwa ibe luhlobo oluqhelekileyo kunye nohlobo olukhethekileyo ngokusetyenziswa.

3. Ukusetyenziswa kwerabha

Irabha yeyona nto isisiseko kwishishini lerabha, esetyenziswa ngokubanzi ukwenza amatayara,imibhobho yerabha, iikhasethi,isivalo serabha, iintambo kunye nezinye iimveliso zerabha.

4. Ukusetyenziswa kweemveliso zerabha ezikhuselweyo

Iimveliso zerabha ezivulnisiweyo ziphuhliswa kunye noshishino lweemoto.Uphuhliso olukhawulezayo lweshishini leemoto kunye neshishini lepetrochemical kwiminyaka yoo-1960 liphucule kakhulu inqanaba lemveliso yerabha;Ngeminyaka yee-1970, ukuze kuhlangatyezwane neemfuno zesantya esiphezulu, ukhuseleko, ukugcinwa kwamandla, ukuphelisa ungcoliseko kunye nokuthintela ukungcoliseka kweenqwelo-mafutha, kwakhuthazwa iintlobo ezintsha zamavili.Ukusetyenziswa kwerabha ekrwada kubalela umlinganiselo omkhulu kwezothutho.

Umzekelo;Ilori ye-Jiefang 4-toni ifuna ngaphezulu kwe-200 kg yeemveliso zerabha, isitulo esiqinileyo kufuneka sixhotyiswe ngaphezu kwe-300 kg yeemveliso zerabha, inqanawa yeetoni ezili-10000 ifuna phantse iitoni ezili-10 zeemveliso zerabha, kunye nenqwelomoya yejethi ifuna phantse iitoni ezi-10 zeemveliso zerabha. I-600 kg yerabha.Elwandle, emhlabeni kunye nokuthutha emoyeni, akukho mntu unokwenza ngaphandle kweemveliso zerabha ezihlanjululweyo.