Game da hydroxypropyl methylcellulose yayin amfani da putty foda

1. Matsaloli na yau da kullum a cikin putty foda

[Saurin bushewa] Wannan yana da alaƙa da yawan adadin ash calcium foda da aka ƙara (mai girma sosai, zai iya rage adadin ash calcium foda da aka yi amfani da shi a cikin tsari na putty) da kuma yawan ajiyar ruwa na hydroxypropyl methylcellulose (HPMC), kuma shi yana da alaka da Yana da alaka da bushewar bango.

[Skinning and curling] Wannan yana da alaƙa da yawan riƙe ruwa. Hydroxypropyl methylcellulose (HPMC) yana da ƙananan danko kuma yana da haɗari ga wannan yanayin ko adadin ƙari kadan ne.

[Cutar foda na ciki bango putty powder] Wannan yana da alaƙa da adadin ash calcium foda da aka saka (yawan ash calcium foda a cikin tsari na putty ya yi kadan ko kuma tsarkin ash calcium ya yi ƙasa sosai, kuma adadin ash yana da yawa. Calcium foda a cikin foda foda ya kamata a ƙara da shi daidai) A lokaci guda kuma, yana da alaƙa da adadin da ingancin hydroxypropyl methylcellulose (HPMC), wanda ke nunawa a cikin adadin riƙe ruwa na samfurin. Adadin riƙewar ruwa yana da ƙasa, kuma sinadarin calcium oxide a cikin ash calcium foda ba a cika shayar da ruwa ba.

[Blistering] Wannan na da alaka da busasshen zafi da faduwar bango, haka nan yana da alaka da ginin.

[Pin points sun bayyana] Wannan yana da alaƙa da cellulose, wanda ke da ƙarancin samar da fina-finai, da kuma ƙazantattun abubuwan da ke cikin hydroxypropyl methylcellulose (HPMC) suna amsa dan kadan tare da ash calcium. Idan halayen ya kasance mai tsanani, ƙwayar putty zai bayyana tofu Slag jihar. Ba za a iya sanya shi a bango ba, kuma ba shi da ƙarfin haɗin kai a lokaci guda. Bugu da ƙari, samfurori irin su hydroxypropyl methylcellulose (HPMC) gauraye da ƙungiyar carboxymethyl suma suna bayyana a cikin wannan yanayin.

[Kogon volcanic da pinholes sun bayyana] Wannan tabbas yana da alaƙa da tashin hankalin saman ruwa na maganin ruwa na hydroxypropyl methylcellulose (HPMC). Tashin tebur na ruwa na maganin ruwa na hydroxyethyl ba a bayyane yake ba. Zai yi kyau a yi maganin gamawa.

[Tsarin yana da sauƙin tsattsage kuma ya juya rawaya bayan bushewa] Wannan yana da alaƙa da ƙari mai yawa na ash calcium foda. Idan an ƙara adadin ash calcium foda da yawa, taurin foda za ta karu bayan bushewa. Taurin kawai ba tare da sassauci ba zai iya fashe cikin sauƙi, musamman Yana da yuwuwar fashe lokacin da aka yi masa ƙarfi na waje. Hakanan yana da alaƙa da babban abun ciki na calcium oxide a cikin ash calcium foda.

2. Me yasa foda ya zama bakin ciki bayan ƙara ruwa?

Ana amfani da Hydroxypropyl methylcellulose (HPMC) azaman mai kauri da mai riƙe ruwa a cikin maiko. Saboda thixotropy na hydroxypropyl methylcellulose (HPMC), da hydroxypropyl methylcellulose a cikin putty foda Bugu da ƙari na HPMC kuma ya haifar da thixotropy bayan ƙara ruwa zuwa putty. Wannan thixotropy yana haifar da lalacewa ta hanyar lalata tsarin haɗin kai na abubuwan da ke cikin foda. Wannan tsarin yana tasowa a lokacin hutawa kuma yana rushewa a ƙarƙashin damuwa. Wato danko yana raguwa a karkashin motsawa, kuma danko yana farfadowa lokacin da yake tsaye.

3. Menene dalilin da ya sa putty yayi nauyi sosai a cikin tsari na scraping?

A wannan yanayin, dankon hydroxypropyl methylcellulose (HPMC) da ake amfani da shi gabaɗaya ya yi yawa, kuma wasu masana'antun suna amfani da yuan 200,000 don yin sa. Kayan da aka samar ta wannan hanya yana da babban danko, don haka zai nutse lokacin da ake zubar da tsari. ji na. Adadin da aka ba da shawarar putty don ganuwar ciki shine 3-5 kg, kuma danko shine 80,000-100,000.

4. Me yasa kuke jin cewa danko na hydroxypropyl methylcellulose (HPMC) tare da danko iri ɗaya ya bambanta a cikin hunturu da bazara?

Saboda thermal gelation na samfurin, danko na putty da turmi za su ragu a hankali tare da karuwar zafin jiki. Lokacin da zafin jiki ya zarce zafin gel na samfurin, samfurin zai haɗe daga ruwa kuma ya rasa danko. Yanayin zafin jiki a lokacin rani gabaɗaya yana sama da digiri 30, wanda ya bambanta da yanayin zafi a lokacin hunturu, don haka danko yana ƙasa. Ana bada shawara don zaɓar samfurin tare da danko mafi girma lokacin da ake amfani da samfurin a lokacin rani, ko don ƙara yawan adadin hydroxypropyl methylcellulose (HPMC), kuma zaɓi samfurin tare da zafin jiki mafi girma.