Nā hoʻohana like ʻole o ka cellulose a me nā mea i loaʻa

ʻO ka cellulose kahi polysaccharide macromolecular i haku ʻia me ka glucose, aia i nā mea nui i nā mea kanu ʻōmaʻomaʻo a me nā mea ola kai. ʻO ia ka mea i hoʻolaha nui ʻia a nui loa i ka polymer maoli ma ke ʻano. Loaʻa iā ia ka biocompatibility maikaʻi, renewable a me Biodegradable a me nā pono ʻē aʻe. Ma o photosynthesis, hiki i nā mea kanu ke synthesize i nā haneli miliona o ka cellulose i kēlā me kēia makahiki.

Nā Manaʻo Hoʻohana Cellulose

Ua hoʻohana nui ʻia ka cellulose kuʻuna ma muli o kāna mau waiwai kino a me nā kemika, ʻoiai ʻo ka cellulose material polymer maoli he mau ʻano hana like ʻole ma hope o ka hana ʻana a me ka hoʻololi ʻana, hiki ke hoʻokō i nā pono like ʻole o nā ʻoihana like ʻole. ʻO ka hoʻohana pono ʻana o nā mea hana cellulose ua lilo i ʻano hoʻomohala kūlohelohe a me nā wahi hotspots noiʻi o nā mea polymer.

Hana ʻia nā derivatives cellulose e ka esterification a i ʻole etherification o nā pūʻulu hydroxyl i nā polymers cellulose me nā reagents kemika. Wahi a nā hiʻohiʻona o nā huahana hopena, hiki ke hoʻokaʻawale ʻia nā derivatives cellulose i ʻekolu mau ʻāpana: cellulose ethers, cellulose esters, a me cellulose ether esters.

1. Cellulose etera

ʻO ka cellulose ether kahi huaʻōlelo maʻamau no ke ʻano o nā derivatives cellulose i hoʻokumu ʻia e ka hopena o ka cellulose alkali a me ka etherifying agent ma lalo o kekahi mau kūlana. ʻO ka cellulose ether kahi ʻano o ka cellulose derivative me nā ʻano like ʻole, nā kahua noi ākea, ka nui hana nui a me ka waiwai noiʻi kiʻekiʻe. ʻO kāna noi e pili ana i nā ʻano he nui e like me ka ʻoihana, ka mahiʻai, ka ʻoihana kemika i kēlā me kēia lā, ka palekana o ke kaiapuni, aerospace a me ka pale aupuni.

ʻO nā cellulose ethers i hoʻohana maoli ʻia i ke kālepa: methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, cyanoethyl cellulose, hydroxypropyl cellulose a me hydroxypropyl methylcellulose Cellulose etc.

2. ʻO nā esters cellulose

Hoʻohana nui ʻia nā cellulose esters i nā kula o ka pale aupuni, ʻoihana kemika, biology, lāʻau lapaʻau, kūkulu a me ka aerospace.

ʻO nā esters cellulose i hoʻohana maoli ʻia i ke kālepa: cellulose nitrate, cellulose acetate, cellulose acetate butyrate a me cellulose xanthate.
3. Cellulose eter ester

ʻO ka cellulose ether esters nā mea hoʻohui ester-ether.

Kahua noi

1. kahua lāʻau lapaʻau

Hoʻohana nui ʻia ka cellulose ether a me ka ester derivatives i ka lāʻau lapaʻau no ka mānoanoa, excipient, hoʻokuʻu mau, hoʻokuʻu ʻia, hana kiʻiʻoniʻoni a me nā kumu ʻē aʻe.

2. Ke kahua uhi

He koʻikoʻi koʻikoʻi nā esters cellulose i nā noi uhi. Hoʻohana ʻia ka cellulose esters i nā mea hoʻopaʻa, nā resins i hoʻololi ʻia a i ʻole nā ​​​​mea kiʻiʻoniʻoni mua e hāʻawi i nā uhi me nā waiwai maikaʻi loa.

3. kahua ʻenehana membrane

Loaʻa nā pono o ka cellulose a me nā mea derivative o ka hoʻopuka nui, ka hana paʻa, a me ka recyclability. Ma o ka hoʻohui ʻana i ka papa-by-layer, ke ʻano o ka hoʻololi ʻana i ke ʻano, ka ʻenehana electrospinning a me nā ʻano ʻē aʻe, hiki ke hoʻomākaukau ʻia nā mea membrane me ka hana hoʻokaʻawale maikaʻi loa. Ma ke kahua o ka ʻenehana membrane i hoʻohana nui ʻia.

4. kahua kūkulu

Loaʻa i nā cellulose ethers ka ikaika gel thermally reversible a no laila he mea pono e like me nā mea hoʻohui i nā mea hana, e like me nā mea hoʻohui kīleʻa i hoʻokumu ʻia.

5. Aerospace, nā kaʻa ikehu hou a me nā mea uila kiʻekiʻe

Hiki ke hoʻohana ʻia nā mea optoelectronic e pili ana i ka cellulose i ka aerospace, nā kaʻa ikehu hou a me nā mea uila kiʻekiʻe.

6. Nā kahua ʻē aʻe

Nā pilikia a me nā hoʻonā i ka noi cellulose

I kēia manawa, he mau hemahema ko ka cellulose. Ma muli o nā hiʻohiʻona o kona ʻano hoʻohui, ʻaʻole hiki ke hoʻoheheʻe ʻia ka cellulose a paʻakikī ke hoʻoheheʻe ʻia i nā solvents maʻamau, ka mea e kaupalena nui ai i ka hoʻomohala ʻana a me ka hoʻohana ʻana i nā mea cellulose. E like me ka hoʻohaʻahaʻa haʻahaʻa i nā mea hoʻoheheʻe maʻamau, ka nele o ka thermoplasticity, hydrophilicity kiʻekiʻe a me ka nele o nā waiwai antibacterial.

No laila,ʻo ka hoʻolālā a me ke kūkuluʻana i nā mea i loaʻa i ka cellulose hou ke kumu no ka hoʻohana ponoʻana i ka cellulose, aʻo ka hoʻomohalaʻana i kaʻenehana hoʻoheheʻe cellulose maʻemaʻe a me ka maikaʻi he ala nui a me ka hōʻoiaʻiʻo no ka hoʻohana ponoʻana i ka cellulose.