Methyl cellulose (MC) i hana ʻia me ka huahana kūlohelohe

ʻO ka Methyl cellulose (MC) he mea ia o ka cellulose, he polymer maoli i loaʻa i loko o nā paia o nā mea kanu. ʻO ka cellulose kekahi o nā mea hoʻohuihui mea ola nui loa ma ka Honua, i hoʻokumu mua ʻia mai ka pulp lāʻau a me nā pulu pulupulu. Hoʻohui ʻia ʻo MC mai ka cellulose ma o ke ʻano o nā hopena kemika e pili ana i ka hoʻololi ʻana o nā pūʻulu hydroxyl (-OH) i loko o ka mole cellulose me nā pūʻulu methyl (-CH3).

ʻOiai ʻo MC ponoʻī he mea hoʻohui kemika, ʻo kāna mea maka, cellulose, loaʻa mai nā kumu kūlohelohe. Hiki ke unuhi ʻia ka cellulose mai nā mea kanu like ʻole, me ka lāʻau, ka pulupulu, ka hemp, a me nā mea kanu fibrous ʻē aʻe. Hana ʻia ka cellulose e wehe i nā haumia a hoʻololi iā ia i ʻano hoʻohana no ka hana ʻana o MC.

Ke loaʻa ka cellulose, e hana ia i ka etherification e hoʻokomo i nā hui methyl ma luna o ka iwi kuamoʻo cellulose, ka hopena i ka hoʻokumu ʻana i ka methyl cellulose. ʻO kēia kaʻina hana e pili ana i ka mālama ʻana i ka cellulose me ka hui ʻana o ka sodium hydroxide a me ka methyl chloride ma lalo o nā kūlana hoʻomalu.

ʻO ka hopena o ka methyl cellulose he keʻokeʻo a keʻokeʻo, ʻaʻala ʻole, a ʻono ʻole ka pauka i hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu a hana i kahi hopena viscous. Hoʻohana nui ʻia ia i nā ʻoihana like ʻole, me ka meaʻai, ka lāʻau lapaʻau, ka mālama pilikino, a me ke kūkulu ʻana, no kona mānoanoa, hoʻopaʻa ʻana, a me nā waiwai hana kiʻiʻoniʻoni.

ʻOiai ʻo MC he pūhui hoʻololi kemika, loaʻa ia mai ka cellulose maoli, e lilo ia i koho biodegradable a me ke kaiapuni no nā noi he nui.