ʻO kēlā me kēia lā kemika hydroxypropyl methylcellulose he polymer synthetic i hana ʻia mai ka cellulose kūlohelohe ma o ka hoʻololi kemika. ʻO ka cellulose ether kahi hua o ka cellulose maoli. ʻOkoʻa ka hana ʻana o ka cellulose ether mai nā polymers synthetic. ʻO kāna mea nui loa he cellulose, kahi hui polymer maoli.
Ma muli o ke ʻano o ke ʻano o ka cellulose kūlohelohe, ʻaʻohe hiki i ka cellulose ke hana me nā mea etherification. Eia naʻe, ma hope o ka hoʻomaʻamaʻa ʻana i ka mea hoʻohuhū, ua luku ʻia nā paʻa hydrogen ikaika ma waena o nā kaulahao molekala a me nā kaulahao, a lilo ka hoʻokuʻu ikaika o ka hui hydroxyl i cellulose alkali reactive. Ma hope o ka pane ʻana o ka mea etherifying agent, ua hoʻololi ʻia ka pūʻulu -OH i hui OR Loaʻa i ka cellulose ether. ʻO ka 200,000-viscosity hydroxypropyl methylcellulose no ka "Max" i kēlā me kēia lā kemika he pauka keʻokeʻo a melemele iki paha, ʻaʻohe mea ʻala, ʻono a ʻaʻohe mea ʻawaʻawa. Hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu a me ka mea hoʻoheheʻe hui ʻia o ka mea organik e hana i kahi hopena viscous akaka.
ʻO ka wai hoʻohana wai he hana ʻili, ʻike kiʻekiʻe, kūpaʻa ikaika, ʻaʻole pili i ka pH ke hoʻoheheʻe ʻia i ka wai. Loaʻa iā ia ka mānoanoa a me nā hopena antifreeze i nā shampoos a me nā gel wai, a he paʻa ka wai a me nā waiwai hana kiʻiʻoniʻoni maikaʻi no ka lauoho a me ka ʻili. Me ka piʻi nui ʻana o nā kumu kumu kumu, hiki i ka hoʻohana ʻana i ka cellulose (antifreeze thickener) i ka shampoo a me ka gel wai hiki ke hōʻemi nui i ke kumukūʻai a hoʻokō i ka hopena i makemake ʻia.
Ka manawa hoʻouna: Apr-21-2023