He wela kūpono no ka uhi ʻana i ka wai

Ka uhi wai

ʻO nā hiʻohiʻona koho pale pale wai o ka hopena, nano-ceramic hollow particles, silica alumina fibers, nā ʻano mea like ʻole e like me ke kumu kumu, thermal conductivity wale nō 0.03W/mK, hiki ke hoʻopau pono i ka pale ʻana i ka wela infrared a me ka lawe ʻana i ka wela.

I ke kauwela wela, ma kahi mahana o ka ʻoi aku ma mua o 40 ℃, ʻaʻole kūpono ke hana wai ʻole, no nā kumu penei:

  1. ʻO ka queous a i ʻole ka solvent-based ka uhi ʻana i ka wai ma lalo o nā kūlana wela kiʻekiʻe e mānoanoa koke, e hoʻopilikia i ka maikaʻi o ke kūkulu ʻana; Eia kekahi, i ke kaʻina hana kiʻiʻoniʻoni, ʻo ka wela kiʻekiʻe ma muli o ka uhi ʻana o ka lepo a i ʻole ka evaporation wikiwiki o ka solvent, ʻoiai ʻo ka wai lalo a i ʻole ka solvent i loko o ka pena ʻaʻole lawa ka volatile, ke kiʻi ʻana akā paʻakikī. I ka hihia o ka undesirable deposition e hoʻomau i ke kūkulu ʻana, hoʻokomo ʻia ka wai i loko o ka uhi, ka hanana o ka blistering, delamination, ʻoiai ke kiʻi ʻoniʻoni maʻalahi e hana i nā māwae shrinkage.
  2. ʻO ka reactive coating nā ʻāpana ʻelua e hoʻōla kemika i ka wikiwiki o ka hopena wela, pōkole ka manawa hoʻōla, ka manawa hana hana, paʻakikī loa ka hana o ke kūkulu ʻana, e hoʻonui ana i nā pilikia o ke kūkulu ʻana.
  3. ʻO ka pahū, ka mea hoʻoheheʻe wai i ke kaʻina hana o ka papa wai, inā kiʻekiʻe loa ka mahana, ʻo ka sima i ke kaʻina o ka hydration wai molekele wikiwiki loa, ʻaʻole hiki ke hoʻopiha piha ʻia, ʻaʻole hoʻopau piha ka hoʻōla ʻana, ʻike ʻia nā hopena. mai ke one mai ka pauka , mai ka ili a me na pilikia e ae.
  4. ʻO ke ʻano o ka ea wela, ʻoi aku ka maikaʻi o nā limahana kūkulu hale i ke ʻano o ka luhi, ka wai maloʻo, ka hahau wela, ka pilikia e hoʻoweliweli i ka palekana o ke ola a me ke olakino o nā limahana.

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