ayi 11

nkhani

Mphamvu ya cellulose ether pa putty powder

1. cellulose ether - cellulose ether predecessor

Cellulose ether ndiye polysaccharide yochuluka kwambiri padziko lapansi masiku ano.Magwero akuluakulu a cellulose achilengedwe ndi thonje, mitengo, zomera zam'madzi, udzu ndi zina zotero.Thonje lili ndi mapadi 92-95%;Flax ili ndi pafupifupi 80% ya cellulose;Wood imakhala ndi pafupifupi 50% ya cellulose.

2, kapangidwe ka cellulose ether

Cellulose ether ndi polysaccharide yovuta yomwe ili ndi masauzande a mayunitsi a shuga mu molekyulu, formula ya mankhwala ndi (C6H10O5) N. Gulu la D-glucose limamangidwa ndi β - 1,4 glucoside bond.

Mavuto wamba ndi zifukwa zazikulu za kukana madzi putty pa khoma lamkati

Njira zodziwika zothetsera mavuto

Neutral putty:

Ufa: zinthu zosakwanira simenti, mapadi etere posungira madzi sikokwanira, kashiamu wolemera kashiamu ndi otsika.

Ntchito yomanga: kusinthidwa ndi bentonite ndi starch ether.

Ng'oma yopanda kanthu;Ndipo kumamatira khoma chifukwa chosakwanira.

Layering: mawonekedwe processing.

Mphamvu: Itha kusinthidwanso polemba ufa wa calcium.

Lime calcium putty:

Mavuto ndi ng'oma yopanda kanthu, chikasu cha depowder, chomanga sichili chabwino, depowder, stratification, cracking, pambuyo pakukula;

Depowder: zinthu za simenti zosakwanira, kusakwanira kwa cellulose kusungirako madzi kapena kusakwanira kowonjezera, laimu kashiamu siwoyera.

Kumanga kosakwanira: bentonite ndi starch ether kuti zitheke.

Ng'oma yopanda kanthu;Ndipo kusakwanira kwa khoma kumamatira chifukwa cha kuwonjezera koyenera kwa latex ufa.

Layering: mawonekedwe processing.

Yellow: kusankha kolakwika kwa cellulose ether.

Kung'amba: Kusweka kwapansi kapena kung'amba mwamphamvu, kukuta kwambiri.

Pambuyo thickening: katundu kashiamu madzi mayamwidwe mlingo ndi osiyana, Ndi bwino kusankha ziro madzi mayamwidwe kapena otsika kwambiri katundu kashiamu ufa;Gray calcium imakhala ndi GaO yosagawika.

Putty yopangidwa ndi simenti:

Mavuto a ng'oma yopanda kanthu, yomanga si yabwino, depowder, delamination, cracking, kusakwanira madzi kukana, coagulation zabodza;

Depowder: zinthu za simenti zosakwanira, cellulose ether yosakwanira kusunga madzi kapena kuonjeza kosakwanira.

Kumanga kosakwanira: bentonite ndi starch ether kuti zitheke.

Ngoma yopanda kanthu: ndi kumamatira pakhoma chifukwa chosakwanira, kuwonjezera koyenera kwa ufa wa latex.

Layering: mawonekedwe processing.

Yellow: Kusankha cellulose molakwika.

Kusakwanira kwa madzi kukana: ufa wosakwanira wa latex ndi zinthu zosakwanira za simenti.

Kung'amba: Kusweka kwapansi kapena kusweka kwamphamvu kwambiri, zokutira ndizokhuthala kwambiri, ndi putty kudzaza dzenje.

Kukhazikika kwabodza: ​​sodium gluconate ikhoza kuwonjezeredwa kuti italikitse nthawi yogwira ntchito.


Nthawi yotumiza: Apr-28-2022