Ukucoceka kwe-hydroxypropyl methylcellulose ekwakheni i-insulation mortar kunye ne-putty powder ichaphazela ngokuthe ngqo umgangatho wokwakhiwa kobunjineli, ngoko ke ziziphi izinto ezichaphazela ukucoceka kwe-hydroxypropyl methylcellulose? Makhe ndikuphendule lo mbuzo.
Kwinkqubo yokuvelisa i-hydroxypropyl methylcellulose, i-oksijini eseleyo kwi-reactor iya kubangela ukuthotywa kwe-hydroxypropyl methylcellulose kunye nokunciphisa ubunzima be-molecular, kodwa i-oksijini eseleyo ilinganiselwe, nje ngokuba akunzima kakhulu ukuphinda udibanise iimolekyuli eziphukileyo Intlekele. Iqondo elibaluleke kakhulu lokuzaliswa kwamanzi linento eninzi yokwenza nomxholo we-hydroxypropyl. Ezinye iifektri zifuna kuphela ukunciphisa iindleko kunye nexabiso, kodwa azifuni ukwandisa umxholo we-hydroxypropyl, ngoko umgangatho awukwazi ukufikelela kwinqanaba leemveliso ezifanayo zangaphandle.
Izinga lokugcinwa kwamanzi e-hydroxypropyl methylcellulose nalo linobudlelwane obukhulu kunye ne-hydroxypropyl, kwaye kuyo yonke inkqubo yokusabela, i-hydroxypropyl iphinda inqume izinga lokugcinwa kwamanzi kwe-hydroxypropyl methylcellulose. Umphumo we-alkalization, umlinganiselo we-methyl chloride kunye ne-propylene oxide, ukuxinwa kwe-alkali kunye nomlinganiselo wamanzi kwikotoni ecocekileyo yonke into inquma ukusebenza kwemveliso.
Umgangatho wezinto eziluhlaza, umphumo we-alkalization, umlinganiselo wokulawulwa kwenkqubo, umlinganiselo wezinyibilikisi kunye nesiphumo sokungathathi hlangothi zonke zigqiba umgangatho we-hydroxypropyl methylcellulose, kunye nenye i-hydroxypropyl methylcellulose yenziwe ukunyibilika Emva koko, kwakunamafu njengokongeza. ubisi, ezinye zimhlophe qhwa, ezinye zimthubi, kwaye ezinye zicacile kwaye zibonakala. Ukuba ufuna ukuyisombulula, lungisa kula manqaku angasentla. Ngamanye amaxesha i-acetic acid inokuchaphazela kakhulu ukuhanjiswa kokukhanya. Kungcono ukusebenzisa i-acetic acid emva kokuhlanjululwa. Impembelelo enkulu kukuba i-reaction ivuselelwe ngokulinganayo kwaye ingaba umlinganiselo wenkqubo uzinzile (ezinye izinto zinomswakama kwaye umxholo awuzinzanga, ezifana nokuphinda kusetyenziswe izinyibilikisi). Enyanisweni, zininzi izinto ezidlalayo. Ngokuzinza kwezixhobo kunye nokusebenza kwabaqhubi abaqeqeshwe kakuhle, iimveliso eziveliswayo kufuneka zizinzile kakhulu. Ukuhanjiswa kokukhanya akuyi kudlula uluhlu lwe-± 2%, kwaye ukuhambelana okufanayo kwamaqela athatha indawo kufuneka kulawulwe kakuhle. Endaweni yokufana, ukuhanjiswa kokukhanya ngokuqinisekileyo kuya kulungile.
Ixesha lokuposa: May-30-2023