Dangane da matsalar cewa foda na putty yana da sauƙin yin foda, ko kuma ƙarfinsa bai isa ba. Kamar yadda muka sani, ana buƙatar ƙara cellulose ether don yin foda na putty, ana amfani da HPMC don putty na bango, kuma masu amfani da yawa ba sa ƙara foda na latex mai sake narkewa. Mutane da yawa ba sa ƙara foda na polymer don adana kuɗi, amma wannan shine mabuɗin dalilin da yasa putty na yau da kullun yake da sauƙin yin foda kuma yana iya fuskantar matsalolin ingancin samfura!
Man shafawa na yau da kullun (kamar 821 putty) galibi ana yin sa ne da farin foda, ɗan manne na sitaci da CMC (hydroxymethyl cellulose), wasu kuma an yi su ne da methyl cellulose da foda Shuangfei. Wannan man shafawa ba shi da mannewa kuma ba ya jure ruwa.
Cellulose na iya sha ruwa ya kumbura bayan an narkar da shi a cikin ruwa. Kayayyaki daga masana'antun daban-daban suna da bambancin yawan shan ruwa. Cellulose yana taka rawa wajen riƙe ruwa a cikin putty. Busasshen putty yana da wani ƙarfi na ɗan lokaci kawai, kuma zai cire foda a hankali bayan dogon lokaci. Wannan yana da alaƙa da tsarin kwayoyin halitta na cellulose kanta. Irin wannan putty yana da santsi, yana da yawan shan ruwa, yana da sauƙin niƙa, ba shi da ƙarfi, kuma ba shi da laushi. Idan aka shafa saman fenti a saman, ƙarancin PVC yana da sauƙin fashewa da kumfa; babban PVC yana da sauƙin raguwa da fashewa; saboda yawan shan ruwa, zai shafi samuwar fim da tasirin ginin saman fenti.
Idan kana son inganta matsalolin da ke sama na putty, za ka iya daidaita dabarar putty, ƙara wasu foda na latex da za a iya sake rarrabawa yadda ya kamata don inganta ƙarfin putty na baya, sannan ka zaɓi hydroxypropyl methylcellulose HPMC mai inganci tare da ingantaccen inganci.
A tsarin samar da putty, idan adadin foda mai latex da za a iya sake rabawa bai isa ba, ko kuma idan an yi amfani da foda mai latex mara kyau don putty, wane tasiri zai yi akan foda mai putty?
Rashin isasshen adadin foda mai laushi na putty, mafi bayyana kai tsaye shine cewa layin putty ya sako-sako, saman ya nitse, adadin fenti da ake amfani da shi don rufe saman yana da girma, ƙimar daidaita ba ta da kyau, saman yana da kauri bayan ƙirƙirar fim, kuma yana da wuya a samar da fim mai kauri. Irin waɗannan bangon suna da saurin barewa, kuraje, barewa, da fashewar fim ɗin fenti. Idan ka zaɓi foda mai ƙarancin putty, a bayyane yake cewa iskar gas mai cutarwa kamar formaldehyde da aka samar a bango zai haifar da cutarwa ta zahiri ga wasu.
Lokacin Saƙo: Yuni-15-2023