Mā te ako i te pānga o ngā horopeta rerekē o te hydroxypropyl methylcellulose (HPMC) ki te āheinga tā, ngā āhuatanga rheological me ngā āhuatanga miihini o te moata tā 3D, i matapakihia te horopeta tika o te HPMC, ā, i tātarihia tōna tikanga awe me te āhua moroiti. E whakaatu ana ngā hua ka heke te rere o te moata i te pikinga o te ihirangi o te HPMC, arā, ka heke te kaha ki te whakaputa me te pikinga o te ihirangi o te HPMC, engari ka pai ake te kaha pupuri rere. Te kaha ki te whakaputa; ka piki ake te tere pupuri āhua me te ātete urunga i raro i te taumaha-ake me te pikinga o te ihirangi HPMC, arā, me te pikinga o te ihirangi HPMC, ka pai ake te kaha tā, ā, ka roa ake te wā tā; mai i te tirohanga rheology, me te . I te pikinga o te ihirangi o te HPMC, ka nui ake te matotoru kitea, te ahotea hua me te matotoru kirihou o te paru, ā, ka pai ake te kaha tā; ka piki ake te thixotropy i te tuatahi, kātahi ka heke me te pikinga o te ihirangi o te HPMC, ā, ka pai ake te āheinga tā; Ki te nui rawa te ihirangi o te HPMC, ka piki ake te pūngao o te moata, ā, ka ngoikore hoki. E taunakihia ana kia kaua te ihirangi o te HPMC e neke ake i te 0.20%.
I ngā tau tata nei, kua tere te whanaketanga o te hangarau tā 3D (e mōhiotia ana ko te "hanga tāpiri"), ā, kua whānuitia te whakamahinga i roto i ngā mara maha pērā i te hangarau koiora, te rererangi, me te mahi toi. Nā te tukanga kore-pokepoke o te hangarau tā 3D kua tino whakapai ake i ngā rauemi, ā, ko te ngāwari o te hoahoa hanganga me tana tikanga hanga aunoa ehara i te mea ka nui te penapena i te kaha o te tangata, engari he pai hoki mō ngā kaupapa hanga i roto i ngā taiao uaua. He auaha, he whai hua hoki te whakakotahitanga o te hangarau tā 3D me te mara hanga. I tēnei wā, ko te tukanga tā 3D e tohu ana i te tukanga tā ko te tukanga tāpae extrusion (tae atu ki te tukanga hanga āhua) me te tukanga tā raima me te hononga paura (tukanga āhua-D). I roto i ēnei, he iti ngā painga o te tukanga tāpae extrusion mai i te tukanga hanga raima tuku iho, he nui te whai huatanga o ngā wāhanga rahi me ngā utu hanga. Ko te painga iti iho kua noho hei wāhi rangahau o nāianei mō te hangarau tā 3D o ngā rauemi sima.
Mō ngā rauemi sima e whakamahia ana hei "rauemi waituhi" mō te tānga 3D, he rerekē ngā whakaritenga mahi i ērā o ngā rauemi sima whānui: i tētahi taha, he whakaritenga anō mō te ngāwari o te mahi o ngā rauemi sima hou kua whakaranua, ā, me tutuki i te tukanga hanga ngā whakaritenga o te whakapūtanga maeneene. I tētahi atu taha, me taea te whakapūtanga o te rauemi sima kua whakapūtanga, arā, kāore e hinga, e rerekē rānei i raro i te mahi a tōna ake taumaha me te pēhanga o te paparanga o runga. Hei tāpiri, mā te tukanga whakakī o te tānga 3D ka hangaia ngā paparanga i waenga i ngā paparanga. Hei whakarite i ngā āhuatanga miihini pai o te rohe atanga paparanga, me pai hoki te piri o ngā rauemi hanga tānga 3D. Hei whakarāpopototanga, ka hangaia te hoahoa o te whakapūtanga, te whakapūtanga, me te piri teitei i te wā kotahi. Ko ngā rauemi sima tētahi o ngā whakaritenga mō te whakamahinga o te hangarau tānga 3D i roto i te mara o te hanga. Ko te whakatikatika i te tukanga whakamakuku me ngā āhuatanga rheological o ngā rauemi sima he huarahi nui e rua hei whakapai ake i te mahi tā i runga ake nei. Te whakatikatika i te tukanga whakamakuku o ngā rauemi sima He uaua ki te whakatinana, ā, he ngāwari ki te puta he raruraru pēnei i te aukati i ngā paipa; ā, me pupuri te rere o te wai i te wā o te tukanga tā me te tere hanganga i muri i te whakapūtanga o te extrusion. I roto i ngā rangahau o nāianei, he maha ngā wā ka whakamahia ngā whakarerekētanga matotoru, ngā ranunga kohuke, ngā nanoclay, me ētahi atu hei whakatikatika i ngā āhuatanga rheological o ngā rauemi sima kia pai ake ai te mahi tā.
Ko te Hydroxypropyl methylcellulose (HPMC) he matū whakamātotoru polymer noa. Ka taea te whakakotahi i ngā here hydroxyl me te ether i runga i te mekameka ngota ki te wai kore utu mā roto i ngā here hauwai. Mā te whakauru ki roto i te raima ka taea te whakapai ake i tōna piripono me te pupuri wai. I tēnei wā, ko te rangahau mō te pānga o te HPMC ki ngā āhuatanga o ngā rauemi sima e aro nui ana ki tōna pānga ki te rere, te pupuri wai, me te rheology, ā, he iti noa ngā rangahau kua mahia mō ngā āhuatanga o ngā rauemi sima tā 3D (pēnei i te extrudability, te capacity collection, me ētahi atu). Hei tāpiri, nā te kore o ngā paerewa ōrite mō te tā 3D, kāore anō kia whakatūria te tikanga aromatawai mō te āheinga tā o ngā rauemi sima. Ka aromatawaihia te āheinga tā o te rauemi mā te maha o ngā paparanga tā me te nui o te whakarerekētanga, te teitei tā mōrahi rānei. Ko ngā tikanga aromatawai o runga ake nei he tino aro ki te takitahi, he ngoikore te whānui, he uaua hoki te tukanga. He nui te kaha me te uara o te tikanga aromatawai mahi i roto i te tono hangarau.
I roto i tēnei pepa, i whakaurua ngā horopeta rerekē o te HPMC ki roto i ngā rauemi sima hei whakapai ake i te āheinga tā o te moata, ā, i arotakehia whānuitia ngā pānga o te horopeta HPMC ki ngā āhuatanga o te moata tā 3D mā te ako i te āheinga tā, ngā āhuatanga rheological me ngā āhuatanga miihini. I runga i ngā āhuatanga pēnei i te rere. I runga i ngā hua aromatawai, i tīpakohia te moata i konatunatua ki te nui pai o te HPMC hei manatoko tā, ā, i whakamatautauria ngā tawhā e tika ana mō te mea tā; i runga i te ako i te āhua moroiti o te tauira, i tūhuratia te tikanga ā-roto o te whanaketanga mahi o te rauemi tā. I taua wā anō, i whakatūria te rauemi sima tā 3D. He tikanga aromatawai whānui mō te mahi tā hei whakatairanga i te whakamahinga o te hangarau tā 3D i roto i te mara o te hanga.
Wā tuku: Hepetema-27-2022