ʻO ke ala hoʻohemo o ka hydroxypropyl methylcellulose (HPMC)

ʻO ke ala hoʻohemo o ka hydroxypropyl methylcellulose (HPMC)

Hoʻohana nui ʻia ka Hydroxypropyl methylcellulose (HPMC) i nā mea hana, nā uhi, nā resins synthetic, nā seramika, nā lāʻau lapaʻau, nā meaʻai, nā textiles, nā mahiʻai, nā mea hoʻonaninani, ka paka a me nā ʻoihana ʻē aʻe. ʻO ka Hydroxypropyl methylcellulose (HPMC) he ether non-ionic cellulose i hana ʻia mai ka cellulose material polymer maoli ma o nā kaʻina hana kemika. ʻO ka Hydroxypropylmethylcellulose (HPMC) he pauka keʻokeʻo ʻona ʻole, ʻono ʻole, hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu e hana ai i kahi ʻano hoʻoheheʻe viscous. Loaʻa iā ia nā hiʻohiʻona o ka mānoanoa, hoʻopaʻa, hoʻopuehu, emulsifying, hana kiʻiʻoniʻoni, hoʻopaneʻe, adsorbing, gelling, surface active, mālama i ka moisture a me ka pale ʻana i ka colloid.

ʻO ke ala hoʻoheheʻe o ka hydroxypropyl methylcellulose (HPMC):

ʻOhu a hoʻopuehu kēia huahana i ka wai wela ma luna o 85 ° C, a hoʻoheheʻe pinepine ʻia e kēia mau ʻano:

1. E lawe i ka 1/3 o ka nui o ka wai wela e pono ai, e hoʻoulu e hoʻopau loa i ka huahana i hoʻohui ʻia, a laila e hoʻohui i ke koena o ka wai wela, hiki ke lilo i wai anuanu, a i ʻole wai hau, a hoʻoulu a hiki i ka mahana kūpono (20). °C), a laila e hoʻoheheʻe loa ia. ka

2. ʻO ka hui ʻana a me ka hui ʻana:

I ka hui ʻana me nā pauka ʻē aʻe, pono e hui pū ʻia me nā pauka ma mua o ka hoʻohui ʻana i ka wai, a laila hiki ke hoʻoheheʻe koke ʻia me ka ʻole o ka agglomeration. ka

3. ʻO ke ʻano hoʻoheheʻe ʻana i nā mea kanu:

E hoʻopuehu mua i ka huahana i loko o ka mea hoʻoheheʻe organik a i ʻole e hoʻomaʻemaʻe iā ia me kahi solvent, a laila hoʻohui i ka wai anuanu e hoʻoheheʻe maikaʻi.