He aha ka hydroxyethyl methyl cellulose (HEMC)?

He aha ka hydroxyethyl methyl cellulose (HEMC)?

 Hydroxyethyl methylcellulose(HEMCʻike ʻia ʻo methylhydroxyethyl cellulose (MHEC).He keʻokeʻo, hina keʻokeʻo, a i ʻole keʻokeʻo melemele.ʻO ia kahi ether cellulose non ionic i loaʻa ma ka hoʻohui ʻana i ka ethylene oxide i ka methyl cellulose.Hana ʻia ia mai nā polymers kūlohelohe maoli e like me ka pulp lāʻau a i ʻole ka pulupulu, a hiki ke hoʻohana ʻia ʻo HEMC ma ke ʻano he mea hoʻopaʻa wai wai kiʻekiʻe, adhesive a me nā mea hana kiʻiʻoniʻoni, stabilizer, a me nā mea ʻē aʻe. ʻo ka wili ʻana, ke kūkulu ʻana a me ke kūkulu ʻana, ka pena a me nā uhi, nā lāʻau lapaʻau, etc.HEMChiki ke hoʻololi ʻia e like me nā koi o ka mea kūʻai aku, a ma hope o ka hoʻololi ʻana, loaʻa nō ke kūʻē maikaʻi i ka sagging a me ka processability maikaʻi.Makemake e hoʻohanaHEMCno nā hana ʻoihana?E ʻoluʻolu e kelepona i kahi mea hoʻolako hilinaʻi ohydroxyethyl methyl cellulosee loaʻa i kahi kālepa maikaʻi.

Nā hiʻohiʻona o HEMC

HEMChe mau hana like ole.Aia lākou:

1. Ka helehelena

 HEMChiki ke keʻokeʻo, melemele māmā, melemele keʻokeʻo, a hina keʻokeʻo paha.

2. Hoʻoheheʻe

HEMChiki ke hoʻoheheʻe ʻia i ka wai (anu a wela paha).ʻOiaiHEMCʻAʻole hiki ke hoʻoheheʻe ʻia i loko o ka hapa nui o nā mea hoʻoheheʻe organik, hiki ke hoʻoheheʻe ʻia i nā mea hoʻohenehene binary a me nā ʻōnaehana wai wai.

ʻO kona ʻano kiʻekiʻe e pili ana i ka viscosity, a ʻokoʻa kona solubility me ka viscosity.ʻO ka haʻahaʻa o ka viscosity, ʻoi aku ka nui o ka solubility, a me ka hope.

3. Paʻa o ka pH

 HEMCpaʻa i ka laulā o 3.0-11.0 a ʻaneʻane pili ʻole kona viscosity, akā ʻoi aku ka nui o kēia ākea e hōʻemi i kona viscosity.

4. ʻO ka hoʻoikaika kino

 HEMChe mea inert i hoʻohana nui ʻia i ka meaʻai a me ka lāʻau lapaʻau ma muli o kona hiki ʻole ke komo i ka metabolism.

5. Hana ʻili

Ma muli o kāna hana ʻeleʻele i loko o nā hoʻonā wai, hiki ke hoʻohana ʻia ma ke ʻano he dispersant, pale, a me ka emulsifier.

6. Ke kū'ē i ka fungus

I ka mālama ʻana i ka wā lōʻihi,HEMCLoaʻa i ka paʻa viscosity maikaʻi, no laila he kūpaʻa maikaʻi ʻo ia.

ʻOi aku ka kiʻekiʻe o kona hiki anti mold ma mua o ka hydroxyethyl cellulose.

7. Paʻa wai

 HEMClilo ia i mea hoʻopaʻa wai maikaʻi ma muli o kona viscosity kiʻekiʻe i loko o nā haʻina wai.

ʻOi aku ka nui o kona mana paʻa wai ma mua o ka methyl cellulose.

8. Lehu maʻiʻo

Ke kaʻina hana hoʻomākaukau oHEMChoʻohana i ka holoi ʻana i ka wai wela, me ka haʻahaʻa loa o ka lehu.

9. Thermal conductive adhesive

I ka manawa eHEMCHoʻomaʻamaʻa ʻia ka hopena i kahi mahana, e emi ana kona ʻike, e hana ana i ka sediment a me ka gel, akā inā e hoʻomaha ʻia, e hoʻi i ke kūlana kumu o ka hopena.

Hoʻohana maʻamau oHEMC

 Hydroxyethylmethylcellulosehiki ke hoʻohana e like me:

Ø AdhesiveØ Colloid pale Ø MānoanoaØ Mea hana kiʻiʻoniʻoni Emulsifier LubricantØ Mea hoʻokuʻu.

Nā noi ʻoihana oHEMC

 HEMChoʻohana nui ʻia i nā ʻoihana penei:

·HoʻuluʻuluʻAi·Kama·ʻoniʻoni·hana·ʻai a me nā mea inu·lāʻau lapaʻau·pena a me nā mea hoʻolele · ʻīnika a me ka ʻaila wili.

E like me ka mea i ʻōlelo mua ʻia,hydroxyethyl methylcellulose (HEMC) he kumu ia o ka methylcellulose.He non ionic cellulose ether i hana ʻia mai ka pulupulu maʻemaʻe kiʻekiʻe.HEMC'O ka pa'a 'ana o ka wai a me ka mānoanoa 'ana hiki ke kūpono i nā pena latex ma muli o ka wai, nā 'īnika a me ka 'eli 'aila, nā mea kūkulu hale, a pēlā aku.HEMCmai nā mea hoʻolako kaulana o ka hydroxyethyl methyl cellulose hiki ke hōʻoia e loaʻa iā ʻoe nā huahana kūpono no ka hoʻohana pilikino a ʻoihana paha.