He aha nā noi o ka cellulose ether ma nā ʻano like ʻole?

ʻEtera cellulosehe polymer molekala kiʻekiʻe semi-synthetic non-ionic, kahi mea hiki ke hoʻoheheʻe ʻia i ka wai a hiki ke hoʻoheheʻe ʻia i ka solvent. Loaʻa iā ia nā hopena like ʻole ma nā ʻoihana like ʻole. No ka laʻana, i nā mea kūkulu kemika, loaʻa iā ia nā hopena hui like ʻole:

① Mea hoʻopaʻa wai, ②Mea hoʻomānoanoa, ③Waiwai hoʻohaʻahaʻa, ④Waiwai hoʻokumu kiʻiʻoniʻoni,

⑤Mea Hoʻopaʻa

I loko o ka ʻoihana polyvinyl chloride, he emulsifier a he dispersant ia; i loko o ka ʻoihana lāʻau lapaʻau, he mea hoʻopaʻa a he mea hoʻokuʻu lohi a kāohi ʻia, a pēlā aku. No ka mea he ʻano like ʻole nā ​​hopena hui o ka cellulose, ʻo kāna noi ʻana kekahi o nā mea ākea loa. A laila, e kālele wau i ka hoʻohana ʻana a me ka hana o ka cellulose ether i nā mea kūkulu hale like ʻole.

Ipena latex

I loko o ka ʻoihana pena latex, no ke koho ʻana i ka hydroxyethyl cellulose, ʻo ke kikoʻī maʻamau o ka viscosity like he 30000-50000cps, kahi e kūlike me ke kikoʻī o HBR250, a ʻo ka nui o ka kuhikuhi ma kahi o 1.5‰-2‰. ʻO ka hana nui o ka hydroxyethyl i loko o ka pena latex, ʻo ia ka hoʻomānoanoa, pale i ka gelation o ka pigment, kōkua i ka hoʻopuehu ʻana o ka pigment, ke kūpaʻa o ka latex, a hoʻonui i ka viscosity o nā ʻāpana, he mea kōkua ia no ka hana hoʻohālikelike o ke kūkulu ʻana: ʻOi aku ka maʻalahi o ka hoʻohana ʻana i ka Hydroxyethyl cellulose. Hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu a i ʻole ka wai wela, a ʻaʻole ia e hoʻopilikia ʻia e ka waiwai pH. Hiki ke hoʻohana palekana ma waena o ka waiwai PI 2 a me 12. Eia nā ʻano hoʻohana:

1. Hoʻohui pololei i ka hana ʻana

Ma kēia ʻano hana, pono e koho ʻia ke ʻano lohi o ka hydroxyethyl cellulose, a hoʻohana ʻia ka hydroxyethyl cellulose me ka manawa hoʻoheheʻe ʻoi aku ma mua o 30 mau minuke. Eia nā ʻanuʻu: ① E kau i kahi nui o ka wai maʻemaʻe i loko o kahi pahu i lako me kahi mea hoʻonāukiuki shear kiʻekiʻe ② E hoʻomaka e hoʻoulu mau i ka wikiwiki haʻahaʻa, a i ka manawa like e hoʻohui mālie i ka hui hydroxyethyl i loko o ka hopena like ③ E hoʻomau i ka hoʻoulu a hiki i ka hoʻomoʻa ʻia ʻana o nā mea granular āpau ④ E hoʻohui i nā mea hoʻohui ʻē aʻe a me nā mea hoʻohui kumu, a pēlā aku. ⑤ E hoʻoulu a hiki i ka hoʻoheheʻe loa ʻia ʻana o nā hui hydroxyethyl āpau, a laila e hoʻohui i nā mea ʻē aʻe i loko o ke ʻano a wili a hiki i ka huahana pau.

2. Hoʻolako ʻia me ka waiʻona makuahine no ka hoʻohana ʻana ma hope

Hiki i kēia ʻano hana ke koho i ke ʻano koke, a he cellulose ka hopena anti-mildew. ʻO ka pōmaikaʻi o kēia ʻano hana, ʻoi aku ka maʻalahi o kona loli a hiki ke hoʻohui pololei ʻia i ka pena latex. Ua like ke ʻano hoʻomākaukau me nā ʻanuʻu ①-④.

3. E hana iā ia i porridge no ka hoʻohana ʻana ma hope

ʻOiai he mau mea hoʻoheheʻe maikaʻi ʻole nā ​​mea hoʻoheheʻe organik (ʻaʻole hiki ke hoʻoheheʻe ʻia) no ka hydroxyethyl, hiki ke hoʻohana ʻia kēia mau mea hoʻoheheʻe e hana i ka porridge. ʻO nā mea hoʻoheheʻe organik i hoʻohana pinepine ʻia he mau wai organik i nā ʻano pena latex, e like me ka ethylene glycol, propylene glycol, a me nā mea hana kiʻiʻoniʻoni (e like me ka diethylene glycol butyl acetate). Hiki ke hoʻohui pololei ʻia ka porridge hydroxyethyl cellulose i ka pena. E hoʻomau i ka hoʻoulu a hiki i ka wā e hoʻoheheʻe loa ʻia ai.

In putty

I kēia manawa, ma ka hapa nui o nā kūlanakauhale o koʻu ʻāina, ua mahalo nui ʻia ka putty pale wai a me ka pale ʻōpala e ka poʻe. Hana ʻia ia ma o ka hopena acetal o ka vinyl alcohol a me ka formaldehyde. No laila, hoʻopau mālie ʻia kēia mea e ka poʻe, a hoʻohana ʻia nā huahana cellulose ether series e pani i kēia mea. ʻO ia hoʻi, no ka hoʻomohala ʻana i nā mea kūkulu hale aloha i ke kaiapuni, ʻo ka cellulose wale nō ka mea i kēia manawa.

I loko o ka putty pale wai, ua māhele ʻia i ʻelua ʻano: ka putty pauka maloʻo a me ka putty paste. Ma waena o kēia mau ʻano putty ʻelua, pono e koho ʻia ka methyl cellulose a me ka hydroxypropyl methyl. ʻO ka kikoʻī o ka viscosity ma waena o 40000-75000cps. ʻO nā hana nui o ka cellulose ka paʻa ʻana o ka wai, ka hoʻopaʻa ʻana a me ka lubrication.

ʻOiai he ʻokoʻa nā ʻano hana putty o nā mea hana like ʻole, ʻo kekahi he calcium hina, calcium māmā, sima keʻokeʻo, a pēlā aku, a ʻo kekahi he pauka gypsum, calcium hina, calcium māmā, a pēlā aku, no laila ʻokoʻa nā kikoʻī, ka mānoanoa a me ka nui o ka infiltration o ka cellulose i koho ʻia e nā ʻano hana ʻelua. ʻO ka nui i hoʻohui ʻia ma kahi o 2‰-3‰.