ʻO ka pāpaʻi wikiwiki ʻana i ka hoʻopaʻa ʻana i ka asphalt waterproof coating he uhi wai. Inā ʻaʻole mālama pono ʻia ka diaphragm ma hope o ka pīpī ʻana, ʻaʻole e pau loa ka wai, a ʻike maʻalahi nā ʻōpū o ka ea i ka wā o ka kuke ʻana i ka wela wela, ka hopena i ka thinning o ke kiʻi wai ʻole, a me ka maikaʻi ʻole o ka wai, anti-corrosion, a me ka pale ʻana i ka wā. . No ka mea, ʻaʻole hiki ke hoʻopaʻa ʻia nā kūlana o ka mālama ʻana ma ke kahua kūkulu, pono e hoʻomaikaʻi i ke kūpaʻa wela kiʻekiʻe o ka hoʻoheheʻe ʻia ʻana o nā uhi wai asphalt hoʻonohonoho wikiwiki mai ka manaʻo o ka hoʻokumu ʻana.
Ua koho ʻia ka cellulose ether hiki ke hoʻoheheʻe ʻia i ka wai no ka hoʻomaikaʻi ʻana i ke kūpaʻa wela kiʻekiʻe o nā mea hoʻoheheʻe ʻia i ka wai. I ka manawa like, ua aʻo ʻia nā hopena o ke ʻano a me ka nui o ka cellulose ether ma nā waiwai mechanical, ka hoʻoulu ʻana i ka hana, ka pale ʻana i ka wela a me ka mālama ʻana i ka hoʻoheheʻe ʻana i ka hoʻonohonoho wikiwiki ʻana i nā uhi wai wai. hopena hana.
Hoʻomākaukau laʻana
E hoʻoheheʻe i ka hydroxyethyl cellulose i loko o ka wai deionized 1/2, e hoʻoulu a hiki i ka hoʻoheheʻe ʻia ʻana, a laila e hoʻohui i ka emulsifier a me ka sodium hydroxide i ke koena 1/2 wai deionized a hoʻoulu like e hoʻomākaukau i kahi hopena kopa, a ʻo ka hope, hui i nā mea i luna. hui pū ʻia no ka loaʻa ʻana o ka wai wai o ka hydroxyethyl cellulose, a mālama ʻia kona waiwai pH ma waena o 11 a me 13.
E hoʻohui i ka asphalt emulsified, neoprene latex, hydroxyethyl cellulose aqueous solution, defoamer, etc. e like me kekahi ratio e loaʻa ai ka mea A.
E hoʻomākaukau i kahi hoʻopalekana o Ca(NO3)2 wai e like me ka mea B.
E hoʻohana i nā mea hoʻoheheʻe uila kūikawā no ka pīpī ʻana i ka mea A a me ka mea B ma luna o ka pepa hoʻokuʻu i ka manawa like, i hiki ke hoʻopili ʻia nā mea ʻelua a hoʻokomo koke i kahi kiʻiʻoniʻoni i ka wā o ke kaʻina hana atomization kea.
Nā hualoaʻa a me ke kūkākūkā
Ua koho ʻia ʻo Hydroxyethyl cellulose me ka viscosity o 10 000 mPa · s a me 50 000 mPa · s, a ua apono ʻia ke ʻano o ka hoʻohui ʻana e aʻo i nā hopena o ka viscosity a me ka nui o ka hydroxyethyl cellulose i ka hana spraying o ka hoʻonohonoho wikiwiki. nā mea hoʻoheheʻe wai ʻaʻahu, nā waiwai hana kiʻiʻoniʻoni, pale wela, nā waiwai mīkini a me nā waiwai mālama. I mea e pale aku ai i ka pōʻino o ke kaulike ʻōnaehana ma muli o ka hoʻohui ʻana o ka solution hydroxyethyl cellulose, ka hopena i ka demulsification, ua hoʻohui ʻia kahi emulsifier a me kahi regulator pH i ka wā o ka hoʻomākaukau ʻana i ka solution hydroxyethyl cellulose.
Ka Hoʻoikaika o ka Viscosity o Hydroxyethyl Cellulose (HEC) ma ka Spraying and Film-forming Properties of Waterproof Coatings
ʻOi aku ka nui o ka viscosity o ka hydroxyethyl cellulose (HEC), ʻoi aku ka nui o ka hopena i ka hoʻoulu ʻana a me nā waiwai hana kiʻiʻoniʻoni o nā uhi wai. Ke 1‰ kona huina hoonui, HEC me ka viscosity o 50 000 mPa·s e hana i ka viscosity o ka ʻōnaehana pale wai I ka hoʻonui ʻia e 10 mau manawa, lilo i mea paʻakikī loa ka pīpī ʻana, a emi nui ka diaphragm, ʻoiai ʻo HEC me ka viscosity. o 10 000 mPa·s he liʻiliʻi ka hopena i ka pulupulu ʻana, a emi ka diaphragm ma ke ʻano maʻamau.
Ka hopena o ka Hydroxyethyl Cellulose (HEC) i ka pale ʻana i ka wela o nā uhi pale wai
ʻO ka hoʻoheheʻe ʻia ʻana o ka ʻōpala wai hoʻoheheʻe wikiwiki i hoʻopaʻa ʻia ma ka pepa alumini no ka hoʻomākaukau ʻana i ka hōʻike hoʻāʻo ʻana i ka wela, a ua hoʻōla ʻia e like me nā kūlana hoʻōla o ka uhi ʻana o ka asphalt wai i hoʻopaʻa ʻia ma ke kūlana aupuni GB/T 16777- 2008. ʻO ka hydroxyethyl cellulose me ka viscosity o 50 000 mPa·s he kaumaha nui ka molecular. Ma waho aʻe o ka hoʻopaneʻe ʻana i ka hoʻoheheʻe ʻana o ka wai, loaʻa iā ia kekahi hopena hoʻoikaika, e paʻakikī i ka wai e hoʻoheheʻe ʻia mai loko mai o ka uhi ʻana, no laila e hoʻohua ai i nā bulges nui aʻe. ʻO ke kaumaha o ke kaumaha o ka hydroxyethyl cellulose me ka viscosity o 10 000 mPa·s he liʻiliʻi, he mea liʻiliʻi ka hopena i ka ikaika o ka mea a ʻaʻole e hoʻopili i ka volatilization o ka wai, no laila ʻaʻohe hana o ka bubble.
Hoʻohui ʻia ka hopena o ka nui o ka hydroxyethyl cellulose (HEC).
Ua koho ʻia ʻo Hydroxyethyl cellulose (HEC) me ka viscosity o 10 000 mPa·s i mea noiʻi, a ua noiʻi ʻia nā hopena o nā hoʻohui like ʻole o HEC i ka hana ʻana a me ka pale wela o nā uhi wai. Ma ka noʻonoʻo ʻana i ka hana hoʻoheheʻe ʻana, ka pale ʻana i ka wela a me nā waiwai mechanical o nā uhi wai ʻole, ua manaʻo ʻia ʻo ka helu hoʻohui maikaʻi loa o ka hydroxyethyl cellulose he 1‰.
ʻO ka neoprene latex i loko o ka hoʻoheheʻe wikiwiki ʻana i ka ʻōpala asphalt waterproof coating a me ka emulsified asphalt he ʻokoʻa nui i ka polarity a me ka density, kahi e alakaʻi ai i ka delamination o ka mea A i kahi manawa pōkole i ka wā mālama. No laila, i ka wā o ke kūkulu ʻia ʻana o ka pūnaewele Pono e hoʻoulu like ʻia ma mua o ka hiki ke hoʻoheheʻe ʻia, i ʻole e alakaʻi maʻalahi ia i nā pōʻino maikaʻi. Hiki i ka Hydroxyethyl cellulose ke hoʻopau pono i ka pilikia delamination o ka hoʻoheheʻe ʻia ʻana o nā uhi wai ʻāʻī. Ma hope o hoʻokahi mahina o ka mālama ʻana, ʻaʻohe delamination. ʻAʻole loli nui ka viscosity o ka ʻōnaehana, a maikaʻi ke kūpaʻa.
kālele
1) Ma hope o ka hoʻohui ʻia ʻana o ka hydroxyethyl cellulose i ka hoʻoheheʻe ʻia ʻana o ka pahu asphalt waterproof coating, ua hoʻomaikaʻi maikaʻi ʻia ka pale ʻana o ka wela o ka uhi wai, a ua hoʻomaikaʻi maikaʻi ʻia ka pilikia o nā ʻūhū paʻa ma ka ʻili o ka uhi.
2) Ma lalo o ka manaʻo o ka hoʻopili ʻole ʻana i ke kaʻina spraying, hana kiʻiʻoniʻoni a me nā waiwai mechanical material, ua hoʻoholo ʻia ka hydroxyethyl cellulose e hydroxyethyl cellulose me ka viscosity o 10 000 mPa·s, a ʻo ka nui o ka hoʻohui ʻia he 1‰.
3) ʻO ka hoʻohui ʻana o ka hydroxyethyl cellulose e hoʻomaikaʻi i ka paʻa o ka mālama ʻana i ka hoʻopaʻa ʻana i ka ʻōpala asphalt waterproof coating, ʻaʻohe delamination ma hope o ka mālama ʻana no hoʻokahi mahina.
Ka manawa hoʻouna: Mei-29-2023