Ko te paura rapa ka taea te whakamarara anō he rauemi whakapūkara waro e whakamahia whānuitia ana, ka taea te whakamarara anō kia ōrite ki roto i te wai hei hanga i te emulsion i muri i te pā ki te wai. Mā te tāpiri i te paura rapa ka taea te whakamarara anō ka pai ake te mahi pupuri wai o te moata sima hou kua whakaranua, me te mahi piri, te ngāwari, te ātete waikore me te ātete waikura o te moata sima whakapakeke. Ka huri te paura rapa i te ōritetanga me te paheke o te pūnaha i te āhua whakaranu mākū, ā, ka pai ake te piri mā te tāpiri i te paura rapa. I muri i te maroke, ka whakaratohia he paparanga mata maeneene me te matotoru me te kaha piri, ā, ka whakapai ake i te pānga atanga o te onepu, te kirikiri me ngā pūwero. , ka whakareihia hei kiriata i te atanga, ka pai ake te ngāwari o te rauemi, ka whakaiti i te modulus elastic, ka mimiti i te ahotea whakarerekētanga wera ki te whānuitanga nui, ā, he ātete wai i te wāhanga o muri mai, ā, he rerekē te pāmahana parepare me te whakarerekētanga rauemi.
He mea tino nui te hanganga o tētahi kiriata pūmua tonu mō te mahi a ngā moata sima kua whakarerekētia e te pūmua. I te wā e whakatakoto ana, e whakapakeke ana hoki i te whakapiri sima, ka puta he maha ngā kōhao ki roto, ka noho hei wāhanga ngoikore o te whakapiri sima. I muri i te tāpiri i te paura rapa ka taea te whakamarara anō, ka marara tonu te paura rapa hei emulsion ina tūtaki ki te wai, ā, ka kohikohi ki te wāhi whai wai (arā, i roto i te kōhao). I te mea ka whakatōngia, ka whakapakeketia hoki te whakapiri sima, ka piki haere te here o ngā matūriki pūmua, ā, ka akiakihia rātou e te taumahatanga ā-mata i waenga i te wai me te hau kia āta tūhono. Ina pā ngā matūriki pūmua ki a rātou anō, ka mimiti te whatunga wai i roto i ngā uaua toto, ā, ka hangaia e te pūmua he kiriata tonu huri noa i te kōhao, ka whakapakari i ēnei wāhi ngoikore. I tēnei wā, kāore e taea e te kiriata pūmua te mahi i te mahi hydrophobic anake, engari kāore hoki e ārai i te uaua toto, kia pai ai te hydrophobicity me te uruhanga hau o te rauemi.
He tino koretake te hononga o te moata sima kāore he pūmua. Engari, nā te moata sima kua whakarerekētia te pūmua, ka tino piri te hononga o te moata katoa nā te mea he kiriata pūmua, ā, ka pai ake ngā āhuatanga miihini me te ātete ki te huarere. I roto i te moata sima kua whakarerekētia te paura rapa, ka whakanuia e te paura rapa te porous o te whakapiri sima, engari ka whakaitihia te porous o te rohe whakawhiti atanga i waenga i te whakapiri sima me te konganuku, ka kore e rerekē te porous whānui o te moata. I muri i te hanganga o te paura rapa hei kiriata, ka taea e ia te ārai pai ake i ngā pore o te moata, ka nui ake te matotoru o te hanganga o te rohe whakawhiti atanga i waenga i te whakapiri sima me te konganuku, ā, ka pai ake te ātete uruhanga o te moata kua whakarerekētia te paura rapa, ā, ka kaha ake te ātete ki te mimiti o ngā mea kino. He pānga pai ki te whakapai ake i te roa o te moata.
Wā tuku: Maehe-14-2023