Udindo wa ufa wa latex wosungunukanso mu zinthu zopangidwa ndi matope

1. Kodi ntchito ya ufa wa latex wosungunuka mu matope ndi yotani?

Yankho: Ufa wa latex wosungunuka umapangidwa pambuyo pogawanitsidwa ndipo umagwira ntchito ngati guluu wachiwiri kuti uwonjezere mgwirizano; colloid yoteteza imayamwa ndi dongosolo la matope (sidzanenedwa kuti yawonongeka pambuyo pogawanitsidwa. Kapena kufalikira kawiri); polymerization yopangidwa Utomoni weniweni umagawidwa mu dongosolo lonse la matope ngati chinthu cholimbitsa, motero kumawonjezera mgwirizano wa matope.

2. Kodi ntchito ya ufa wa latex wosungunuka mu matope onyowa ndi yotani?

Yankho: Kuwongolera magwiridwe antchito a nyumba; kukulitsa kusinthasintha kwa madzi; kukulitsa kukana kwa thixotropy ndi kutsika kwa madzi; kukulitsa mgwirizano; kukulitsa nthawi yotseguka; kukulitsa kusunga madzi;

3. Kodi ntchito ya ufa wa latex wosungunukanso ndi yotani pambuyo poti matope akonzedwa?

Yankho: kuwonjezera mphamvu yokoka; kuwonjezera mphamvu yopindika; kuchepetsa modulus yotanuka; kuwonjezera kufooka; kuwonjezera kuchuluka kwa zinthu; kuwonjezera kukana kuwonongeka; kuwonjezera mphamvu yogwirizana; Ili ndi hydrophobicity yabwino kwambiri (yowonjezera ufa wa rabara wopondereza hydrophobic).

4. Kodi ntchito ya ufa wa latex wosungunuka m'madzi osiyanasiyana ndi iti?

01. Chomatira cha Matailosi

① Zotsatira pa matope atsopano
A. Kuonjezera nthawi yogwira ntchito ndi nthawi yosinthika;
B. Kuwongolera momwe madzi amasungidwira kuti simenti igwire bwino ntchito yake;
C. Kulimbitsa kukana kwa kutsika (ufa wapadera wa rabara wosinthidwa)
D. Kuwongolera kugwira ntchito bwino (kosavuta kumanga pa substrate, kosavuta kukanikiza thailo mu guluu).

② Zotsatira pa matope olimba
A. Imakhala yolimba bwino ku zinthu zosiyanasiyana, kuphatikizapo konkriti, pulasitala, matabwa, matailosi akale, PVC;
B. Pansi pa nyengo zosiyanasiyana, imatha kusinthasintha bwino.

02. Dongosolo lotetezera khoma lakunja

① Zotsatira pa matope atsopano
A. Kuonjezera maola ogwira ntchito;
B. Kuwongolera momwe madzi amasungidwira kuti simenti isamathire madzi;
C. Kupititsa patsogolo kugwira ntchito.

② Zotsatira pa matope olimba
A. Ili ndi mgwirizano wabwino ndi bolodi la polystyrene ndi zinthu zina;
B. Kusinthasintha kwabwino kwambiri komanso kukana kukhudzidwa;
C. Kulowa bwino kwa nthunzi ya madzi;
D. Kuteteza madzi bwino;
E. Kukana nyengo bwino.

03. Kudzikweza

① Zotsatira pa matope atsopano
A. Kuthandiza pakukweza kuyenda;
B. Kulimbitsa mgwirizano ndi kuchepetsa kugawikana;
C. Kuchepetsa kupangika kwa thovu;
D. Kukonza kusalala kwa pamwamba;
E. Pewani kusweka msanga.

② Zotsatira pa matope olimba
A. Kulimbitsa kukana kwa ming'alu ya kudzikweza;
B. Kulimbitsa mphamvu yopindika ya kudzikweza;
C. Kuonjezera kwambiri kukana kutopa kwa kudzikweza;
D. Kuonjezera kwambiri mphamvu ya mgwirizano wa kudzikweza.

04. Putty

① Zotsatira pa matope atsopano
A. Kukonza kapangidwe kake;
B. Onjezerani madzi ochulukirapo kuti muwonjezere madzi m'thupi;
C. Kuonjezera kuthekera kogwira ntchito;
D. Pewani kusweka msanga.

② Zotsatira pa matope olimba
A. Chepetsani modulus yotanuka ya matope ndikuwonjezera kufanana kwa gawo loyambira;
B. Wonjezerani kusinthasintha ndi kukana kusweka;
C. Kulimbitsa kukana kutayika kwa ufa;
D. Kusakonda madzi kapena kuchepetsa kuyamwa kwa madzi;
E. Wonjezerani kumatirira ku gawo loyambira.

05. Sitima yosalowa madzi

① Zotsatira pa matope atsopano:
A. Kukonza kapangidwe kake
B. Kuonjezera kusunga madzi ndikuwongolera kuchuluka kwa madzi m'nthaka;
C. Kuonjezera kuthekera kogwira ntchito;

② Zotsatira pa matope olimba:
A. Chepetsani modulus yotanuka ya matope ndikuwonjezera kufananiza kwa maziko;
B. Wonjezerani kusinthasintha, pewani kusweka kapena kukhala ndi luso lolumikiza;
C. Kuonjezera kuchuluka kwa matope;
D. Kuopa Madzi;
E. Wonjezerani mphamvu yogwirizana.