ngā rauemi mata matua e hiahiatia ana mō te hangate etera cellulosekei roto ko te miro kua parakoretia (te penupenu rakau rānei) me ētahi whakarewa matū noa, pērā i te propylene oxide, te methyl chloride, te wai houra wai, te wai houra wai, te ethylene oxide, te toluene me ētahi atu rauemi āwhina. Ko ngā umanga ahumahi o runga o tēnei umanga ko te miro kua parakoretia, ngā umanga whakaputa penupenu rakau me ētahi umanga matū. Ka rerekē te pānga o ngā piki me ngā heke o te utu o ngā rauemi mata matua kua whakahuatia i runga ake nei ki te utu whakaputa me te utu hoko o te cellulose ether.
He tino teitei te utu mō te miro kua parakoretia. Hei tauira, ko te cellulose ether kounga rauemi hanga whare, i roto i te wā pūrongo, ko te utu mō te miro kua parakoretia he 31.74%, 28.50%, 26.59% me te 26.90% o te utu hoko o te cellulose ether kounga rauemi hanga whare. Ka pā te piki me te heke o te utu o te miro kua parakoretia ki te utu hanga o te cellulose ether. Ko te rauemi mata matua mō te hanga miro kua parakoretia ko ngā miro whiri. Ko ngā miro whiri tētahi o ngā hua taha o te tukanga hanga miro, e whakamahia ana hei hanga i te penupenu miro, te miro kua parakoretia, te nitrocellulose me ētahi atu hua. He tino rerekē te uara whakamahi me te whakamahinga o ngā miro whiri me te miro, ā, he iti iho te utu i tō te miro, engari he hononga tōna ki te piki me te heke o te utu o te miro. Ka pā te piki me te heke o te utu o ngā miro whiri ki te utu o te miro kua parakoretia.
Ka rerekē ngā pānga o ngā piki me ngā heke o te utu o te miro kua parakore ki te whakahaere i ngā utu whakaputa, te utu hua me te hua o ngā umanga i roto i tēnei ahumahi. Ina teitei te utu o te miro kua parakore, ā, he iti te utu o te penupenu rakau, hei whakaiti i ngā utu, ka taea te whakamahi i te penupenu rakau hei whakakapi me te tāpiri mō te miro kua parakore, ko te nuinga mō te hanga i ngā etera cellulose he iti te matotoru pērā i te rongoā me te kai.ngā etera celluloseE ai ki ngā raraunga mai i te paetukutuku o te Tari Tatauranga ā-Motu, i te tau 2013, ko te rohe whakato miro o tōku whenua he 4.35 miriona heketea, ā, ko te putanga miro ā-motu he 6.31 miriona tana. E ai ki ngā tatauranga mai i te Rōpū Ahumahi Cellulose o Haina, i te tau 2014, ko te putanga katoa o te miro parakore i hangaia e ngā kaihanga miro parakore nui o te motu he 332,000 tana, ā, he nui ngā rauemi mata.
Ko te maitai me te waro waro waro te rauemi matua mō te hanga taputapu matū karāhe. Ko te utu o te maitai me te waro waro waro te wāhanga nui o te utu hanga o ngā taputapu matū karāhe. Ka pāngia te utu hanga me te utu hoko o ngā taputapu matū karāhe e ngā piki me ngā heke o te utu o ēnei rauemi mata.
Wā tuku: Paenga-whāwhā-25-2024