Hei ranunga mahi-teitei, ka taea e te cellulose ether kounga rauemi hanga te whakapai ake i te pupuri wai me te whakamātotoru o ngā rauemi hanga, me te whakapai ake i te mahi o te hanganga. He whānuitia te whakamahinga hei whakapai ake me te arotau tae atu ki te moata pereki, te moata whakamahana wera, te moata here taera, te moata whakataurite-ake, me te mahi o ngā hua rauemi hanga tae atu ki te hanga kapia PVC, te peita rapa, te putty ātete-wai, me ētahi atu, kia tutuki ai ngā whakaritenga o te penapena pūngao me te tiaki taiao, whakapai ake i te whai huatanga o te hanganga o te hanganga me te whakapaipai, me te whakamahi ā-korekore ki ngā momo kaupapa hanga. Ko te hanganga pereki me te parai, te whakapaipai pakitara o roto me waho e hangai ana ki te ahunga whanaketanga o te kaupapa here ahumahi ā-motu mo te penapena pūngao me te tiaki taiao o ngā rauemi hanga hou. Ko te cellulose ether kounga rauemi hanga a te kamupene he HPMC kounga rauemi hanga teitei te nuinga, ā, ko ōna mara tono matua ko te moata whakamahana wera, te piri taera, te whakataurite-ake, te kāpia pepapātū me ētahi atu mara moata maroke-whakaranu, tae atu ki te polyvinyl chloride (PVC), te paru hiko me ētahi atu mara; kei reira anō ētahi hua noa, e whakamahia ana i roto i te moata kua oti te whakaranu, te moata noa me te putty waru pakitara.
Nā te nui o te haumitanga katoa ki te ao hangarau hanga, te whānuitanga o te mākete me te nui o te tono, he nui ake te tono whānui o te mākete mō te cellulose ether kounga rauemi hanga i te tono mō te cellulose ether i ētahi atu mara. E whakamahia ana i roto i te moata kua oti te whakaranu, te kaihoko here, te PVC, te putty, me ētahi atu. I tēnei wā, ko te tono o tōku whenua mō te cellulose ether kounga rauemi hanga (tae atu ki te hanga, te PVC me ngā paninga) neke atu i te 90% o te tono mō te cellulose ether kore-ionic.
Engari mai i te tirohanga ā-ao, tata ki te 52% o ngā etera cellulose kore-ionic e whakamahia ana i roto i te mara o ngā rauemi hanga, he iti rawa atu i te taumata ā-rohe. Ko te take matua, i tetahi taha, he nui, he tipu haere te tauine o te haumitanga ki te mara o te hangarau hanga i tōku whenua. Ahakoa kei te puhoi te tere tipu, he nui te rahinga; Nō reira, he whānui te whānuitanga o te tono mō te etera cellulose karaehe rauemi hanga o tōku whenua, he nui te tono mākete, me te marara o ngā kiritaki. I runga i te 220,000 tana o te etera cellulose karaehe rauemi hanga e hiahiatia ana i te mākete ā-rohe i te tau 2018 me te utu toharite o te 25,000 yuan/tana, ko te rahi o te mākete etera cellulose karaehe rauemi hanga ā-rohe he tata ki te 5.5 piriona yuan.
Mō te rauemi hanga whare kore-ionic cellulose ether, e rua ngā āhuatanga. Tuatahi, he nui te pānga o ngā ahumahi o raro iho i tēnei ahumahi pērā i te miihini hanga, te whenua me te whakapaipai. I ngā tau tata nei, ahakoa kua piki ake te haumi whenua me te hanganga o ngā umanga whakawhanake whenua o tōku whenua i ia tau, kua tino heke te tere tipu. Nō reira, kua heke te tere tipu o te hanga ā-motu o te moata me ngā paninga kua oti te whakaranu.
Ko tētahi atu āhuatanga ko te ārahi a te kaupapa here i te whanaketanga o ngā whare matomato, penapena-pūngao me te hoahoa taiao, me te whakawhiti i te tono a ngā kiritaki o tāwāhi ki Haina, e whakakore ana i te pānga o te hekenga o te tipu o ngā rawa whenua o roto. Ko te "Mahere Tekau mā Toru o ngā Tau Rima mō te Tiaki Pūngao Whare me te Whakawhanaketanga Whare Kakariki" e whakatakoto ana i ngā whāinga. I te tau 2020, ka piki ake te taumata whai huatanga pūngao o ngā whare tāone hou mā te 20% ki te whakataurite ki te tau 2015; ka neke atu i te 50% te ōwehenga o te wāhi whare matomato i roto i ngā whare tāone hou, ā, ka whakamahia te ōwehenga o ngā rauemi hanga matomato Neke atu i te 40%; ko te wāhi whakahoutanga penapena-pūngao o ngā whare noho o nāianei neke atu i te 500 miriona mita pūrua, ā, ko te whakahoutanga penapena-pūngao o ngā whare tūmatanui he 100 miriona mita pūrua. Ko te ōwehenga o ngā whare penapena-pūngao i roto i ngā whare noho o nāianei i roto i ngā tāone me ngā tāone iti puta noa i te motu neke atu i te 60%. Mā te whanaketanga o te cellulose ether ka tautoko i ngā kaupapa here. Whai muri i te raruraru nama o Ūropi i te tau 2012, i whakapiki ake ngā kaihoko o ētahi whenua i ā rātou hoko cellulose ether mai i Haina me ētahi atu whenua whakawhanake hei whakatau i te raruraru me te whakaiti i ngā utu.
Wā tuku: 28 Paenga-whāwhā 2024