Focus on Cellulose ethers

Ungawuthuthukisa kanjani umuzwa wesandla esindayo we-putty scraping

umbuzo:

UPutty uzizwa esindwa

Ngesikhathi sokwakhiwa kwe-putty, abanye abantu bazohlangana nesimo sokuthi isandla sizizwa sinzima. Siyini isizathu esiqondile? Ingathuthukiswa kanjani?

Izizathu ezijwayelekile zokuthi kungani i-putty izizwa isindayo yilezi:

1. Ukusetshenziswa okungalungile kwemodeli ye-viscosity ye-cellulose ether:

Kulokhu, i-viscosity ye-cellulose ether ngokuvamile iphakeme kakhulu, futhi i-putty eyenziwe izozizwa isindayo ngesikhathi senqubo yokukhuhla;

Esinye isizathu ukuthi ngesikhathi sokwakhiwa ehlobo, ukusetshenziswa kwe-hydroxypropyl methylcellulose ether enezinga eliphansi lokushisa eliphansi lokushisa kungase kubangele ukuthi i-putty ilahlekelwe yi-viscosity, okuzothinta ukuzwa kokwakhiwa.

2. Isilinganiso esingalungile noma ukucoleka kwempushana:

Ngokuvamile, kunezinto eziningi ze-inorganic gelling, noma ubuhle bokugcwalisa okukhethiwe kuhle kakhulu, okujwayele ukunamathela emmese;

Kungenzeka futhi ukuthi ukuze kuncishiswe izindleko, azikho noma izithasiselo ezingaphansi zokuthuthukisa umuzwa wesandla zengezwe, njengama-starch ethers nama-lubricants e-thixotropic.

Izindlela zokuthuthukisa 1

Isilinganiso esifanelekile se-raw material nokukhetha ukucoliseka

Ubucwebe bempahla eluhlaza iyonke bungalawulwa ku-150-200 mesh, futhi ubuhle bokugcwalisa ngokuvamile bungaba yi-325 mesh, hhayi inhle kakhulu;

Inani le-polyvinyl alcohol eliyimpuphu akufanele lidlule u-6%;

Kuyadingeka futhi ukufunda ukunciphisa inani lezinto ezingaphili zikasimende. Ngokuvamile, kwanele ukulawula usimende ku-28% -32%, futhi usebenzise izithasiselo ukuze uthuthukise ukusebenza kwawo ngokugcwele.

Indlela yokuthuthukisa 2

Khetha i-cellulose ether efanele

Ngokuvamile, sincoma i-hydroxyethyl methyl cellulose ether ngokusebenza okungcono, enokumelana okungcono kakhulu kwezinga lokushisa eliphezulu futhi engakwazi ukuzivumelanisa kahle nokwakhiwa kwehlobo futhi inciphise izindleko zokushintshisana zasebusika nehlobo;

Isihluthulelo ukukhetha i-ether cellulose ene-viscosity efanelekile. Ngokuvamile, i-cellulose ether ene-viscosity engu-80,000 kuya ku-100,000 yanele ku-putty powder, kodwa inani le-cellulose ether elengeziwe kufanele linqunywe ngokuhlolwa kokwakha okunengqondo!

Izindlela zokuthuthukisa 3

Engeza izithasiselo ukuze uthuthukise ukuzwa kwesandla

Okokugcina, singacabangela ukwengeza isitashi ether noma i-thixotropic lubricant (bentonite) ukuze sithuthukise umuzwa wodaka;

Khumbula: inhlanganisela yefomula yesayensi iyisihluthulelo sokuxazulula inkinga!


Isikhathi sokuthumela: Feb-10-2023
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