ʻO ka uhi wai ʻole o ka ʻapala ʻala wikiwiki e pīpī ana he uhi wai ia. Inā ʻaʻole mālama pono ʻia ka diaphragm ma hope o ka pīpī ʻana, ʻaʻole e mae loa ka wai, a e ʻike maʻalahi ʻia nā pehu ea mānoanoa i ka wā e hoʻomoʻa ai i ka mahana kiʻekiʻe, e hopena ana i ka lahilahi o ka ʻili wai ʻole, a me ka pale wai ʻole, ka pale ʻana i ka palaho, a me ke aniau. . No ka mea, ʻaʻole hiki ke kaohi ʻia nā kūlana mālama ma ke kahua kūkulu, he mea nui e hoʻomaikaʻi i ke kūpaʻa wela kiʻekiʻe o nā uhi wai ʻala ʻala wikiwiki i pīpī ʻia mai ka manaʻo o ka hoʻohuihui ʻana.
Ua koho ʻia ka cellulose ether wai-hoʻoheheʻe ʻia e hoʻomaikaʻi i ke kūpaʻa wela kiʻekiʻe o nā mea pale wai ʻapala ʻūlū wikiwiki i pīpī ʻia. 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 hana pīpī, ke kūpaʻa wela a me ka mālama ʻana o nā uhi pale wai ʻapala ʻūlū wikiwiki.
Hoʻomākaukau laʻana
E hoʻoheheʻe i ka hydroxyethyl cellulose i loko o ka 1/2 wai deionized, e hoʻoulu a hiki i ka wā e hoʻoheheʻe loa ʻia ai, a laila e hoʻohui i ka emulsifier a me ka sodium hydroxide i ke koena o ka 1/2 wai deionized a hoʻoulu like e hoʻomākaukau i kahi hopena kopa, a ʻo ka hope loa, e kāwili i nā mea i luna. Hoʻohui like ʻia nā hopena ʻelua e loaʻa ai kahi hopena wai o ka hydroxyethyl cellulose, a ua kāohi ʻia kona waiwai pH ma waena o 11 a me 13.
E kāwili i ka asphalt emulsified, neoprene latex, hydroxyethyl cellulose aqueous solution, defoamer, a me nā mea ʻē aʻe e like me kahi lakio i loaʻa ai ka mea A.
E hoʻomākaukau i kahi ʻano nui o ka hopena wai Ca(NO3)2 ma ke ʻano he mea B.
E hoʻohana i nā lako pīpī uila kūikawā e pīpī i ka mea A a me ka mea B ma luna o ka pepa hoʻokuʻu i ka manawa like, i hiki ai ke hoʻopili ʻia nā mea ʻelua a hoʻokomo koke ʻia i loko o kahi ʻiliʻili i ke kaʻina hana kea atomization.
Nā hopena a me ke kūkākūkā ʻana
Ua koho ʻia ka Hydroxyethyl cellulose me ka viscosity o 10 000 mPa·s a me 50 000 mPa·s, a ua hoʻohana ʻia ke ʻano o ka hoʻohui ʻana ma hope o ke aʻo ʻana i nā hopena o ka viscosity a me ka nui o ka hoʻohui ʻana o ka hydroxyethyl cellulose ma ka hana pīpī ʻana o nā uhi wai ʻole o ka asphalt rubber hoʻonohonoho wikiwiki, nā waiwai hoʻokumu kiʻiʻoniʻoni, ke kūpaʻa wela, nā waiwai mechanical a me nā waiwai mālama. I mea e pale aku ai i ka hōʻino ʻana i ke kaulike o ka ʻōnaehana i hoʻokumu ʻia e ka hoʻohui ʻana o ka hopena hydroxyethyl cellulose, e hopena ana i ka demulsification, ua hoʻohui ʻia kahi emulsifier a me kahi mea hoʻoponopono pH i ka wā o ka hoʻomākaukau ʻana o ka hopena hydroxyethyl cellulose.
Ka Mana o ka Viscosity o Hydroxyethyl Cellulose (HEC) ma ka Spraying a me nā Waiwai Hoʻokumu Kiʻiʻoniʻoni o nā Uhi Pale Wai
ʻO ka nui o ka viscosity o ka hydroxyethyl cellulose (HEC), ʻo ka nui o ka hopena ma ka pīpī ʻana a me nā waiwai hana kiʻiʻoniʻoni o nā uhi pale wai. Ke 1‰ kona nui i hoʻohui ʻia, ʻo HEC me ka viscosity o 50 000 mPa·s e hana i ka viscosity o ka ʻōnaehana uhi pale wai. Ke hoʻonui ʻia e 10 mau manawa, lilo ka pīpī ʻana i mea paʻakikī loa, a emi nui ka diaphragm, ʻoiai ʻo HEC me ka viscosity o 10 000 mPa·s he hopena liʻiliʻi i ka pīpī ʻana, a emi ka diaphragm ma ke ʻano maʻamau.
Ka hopena o ka Hydroxyethyl Cellulose (HEC) ma ke kūpaʻa wela o nā uhi pale wai
Ua pīpī ʻia ka uhi pale wai ʻapala ʻala wikiwiki i pīpī ʻia ma luna o ka pepa alumini e hoʻomākaukau i ka hāpana hoʻāʻo pale wela, a ua hoʻōla ʻia e like me nā kūlana hoʻōla o ka uhi pale wai ʻapala ʻala wai i hoʻokumu ʻia ma ke kūlana aupuni GB/T 16777-2008. ʻO ka hydroxyethyl cellulose me ka viscosity o 50 000 mPa·s he kaumaha molekala nui. Ma waho aʻe o ka hoʻopaneʻe ʻana i ka mahu ʻana o ka wai, loaʻa iā ia kahi hopena hoʻoikaika, e paʻakikī ai i ka wai ke mahu mai loko mai o ka uhi, no laila e hana ia i nā puʻupuʻu nui aʻe. ʻO ke kaumaha molekala o ka hydroxyethyl cellulose me ka viscosity o 10 000 mPa·s he liʻiliʻi, ʻaʻohe hopena iki i ka ikaika o ka mea a ʻaʻole ia e hoʻopilikia i ka volatilization o ka wai, no laila ʻaʻohe hana pehu.
Ka hopena o ka nui o ka hydroxyethyl cellulose (HEC) i hoʻohui ʻia
Ua koho ʻia ʻo Hydroxyethyl cellulose (HEC) me ka mānoanoa o 10 000 mPa·s ma ke ʻano he mea noiʻi, a ua noiʻi ʻia nā hopena o nā hoʻohui like ʻole o HEC ma ka hana pīpī a me ke kūpaʻa wela o nā uhi pale wai. Ke noʻonoʻo pono nei i ka hana pīpī, ke kūpaʻa wela a me nā waiwai mechanical o nā uhi pale wai, ua manaʻo ʻia ʻo ka nui kūpono o ka hoʻohui ʻana o ka hydroxyethyl cellulose he 1‰.
ʻO ka neoprene latex i loko o ka uhi wai ʻole o ka ʻapala ʻaila wikiwiki i pīpī ʻia a me ka ʻapala emulsified he ʻokoʻa nui i ka polarity a me ka density, kahi e alakaʻi ai i ka delamination o ka mea A i loko o kahi manawa pōkole i ka wā mālama. No laila, i ka wā kūkulu ʻana ma ke kahua pono e hoʻoulu like ʻia ma mua o ka pīpī ʻia ʻana, inā ʻaʻole e alakaʻi maʻalahi ia i nā pōpilikia maikaʻi. Hiki i ka Hydroxyethyl cellulose ke hoʻoponopono pono i ka pilikia delamination o nā uhi wai ʻole o ka ʻapala ʻaila wikiwiki i pīpī ʻia. 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 uhi wai ʻole o ka ʻalapona wikiwiki i pīpī ʻia, ua hoʻomaikaʻi nui ʻia ke kūpaʻa wela o ka uhi wai ʻole, a ua hoʻomaikaʻi nui ʻia ka pilikia o nā pehu mānoanoa ma luna o ka ʻili o ka uhi.
2) Ma lalo o ke kumumanaʻo o ka hoʻopilikia ʻole ʻana i ke kaʻina hana pīpī, ka hana hana kiʻiʻoniʻoni a me nā waiwai mechanical o ka mea, ua hoʻoholo ʻia ka hydroxyethyl cellulose he hydroxyethyl cellulose me ka viscosity o 10 000 mPa·s, a ʻo ka nui o ka hoʻohui he 1‰.
3) ʻO ka hoʻohui ʻana o ka hydroxyethyl cellulose e hoʻomaikaʻi i ke kūpaʻa o ka mālama ʻana o ka uhi pale wai ʻalapa wikiwiki i pīpī ʻia, a ʻaʻohe delamination e hana ʻia ma hope o ka mālama ʻana no hoʻokahi mahina.
Ka manawa hoʻouna: Mei-29-2023