Hydroxypropyl Methyl Cellulose Fermented

Hoʻohana ʻia ka Hydroxypropyl methylcellulose ma ke ʻano he kumu waiwai e hana ai i ka aila, hiki ke hoʻopau i ka hoʻohana ʻana i ke kō, hoʻomaikaʻi i ka hoʻohana ʻana i ka nui o nā mea maka, hoʻemi i ke koena o ka substrate i ka broth fermentation, hoʻemi i ke kumukūʻai o ka mālama ʻana i ka wai, a hana i ke ʻano maʻamau. o ka hydroxypropyl methylcellulose pono He mea pono ia no ka hoʻonui ʻana i nā kaʻina hana fermentation hoʻomau, pale ʻana i nā pilikia pili i ka ʻiʻo a me ka dilution moʻomeheu;pono no ka manipulation o ka fermentation kaʻina.

ʻO Hydroxypropyl methylcellulose, cellulose maka, hiki ke hoʻomaʻemaʻe ʻia i ka pulupulu, a i ʻole he pulp lāʻau.Pono e pulverized ma mua a i ka wā alkaliization.Pono ia e pulverize i ka cellulose maka mea ma ka ikehu mechanical i mea e hoemi ai i ka crystallinity a me ka polymerization degere, e hoonui i kona ili, a laila hoʻomaikaʻi i ka trihydroxyl degere a me ka hoʻololi kemika hiki o ka reactant ma ka glucose apo o ka cellulose polymer.

ʻOiai ʻaʻole paʻakikī ka synthesis o ka hydroxypropyl methylcellulose, ʻo ka alkali, nā mea maka ua pulverized a alkalized.Etherification, solvent recovery, centrifugal separation, holoi a hoʻomaloʻo i nā wahi like ʻole, akā pili i nā ʻenehana koʻikoʻi a me ka ʻike ʻike waiwai.No nā ʻano huahana like ʻole, loaʻa i kēlā me kēia kaiapuni nā kūlana mana hou loa, e like me ka mahana, ka manawa, ke kaomi a me ka hoʻokele kahe ʻana i nā mea kōkua a me nā mea hoʻokele ka hōʻoia o ka maikaʻi o ka huahana paʻa, ʻōnaehana hana hilinaʻi, a maikaʻi.

Ma muli o ka like o ka hana o ka hydroxypropyl methylcellulose me nā ethers hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻohana ʻia ma ke ʻano he mea hana kiʻiʻoniʻoni, mānoanoa, emulsifier a me ka stabilizer i loko o nā pena latex a me ka wai-soluble resin coating compositions, abrasion resistance, Uniform coating and adhesion, a me ka hoʻomaikaʻi ʻana i ka ʻili o ka ʻili, kūpaʻa i nā ʻakika a me nā kumu, a me ka launa pū me nā puaʻa metala.He hopena maikaʻi ka Hydroxypropyl methylcellulose ma ke ʻano he mānoanoa no nā pena polyvinyl acetate wai keʻokeʻo.Hoʻomaikaʻi ʻia ka pae o ka hoʻololi ʻana i ka cellulose ether, a hoʻomaikaʻi ʻia ke kūʻē ʻana i ka bacteria.