PVC Papa HPMC

PVCʻO ka papa HPMC Hydroxypropyl Methylcellulose he ʻano polymer me ka hoʻohana nui a me ka hana kiʻekiʻe loa ma waena o nā ʻano cellulose āpau. Hoʻohana nui ʻia ia i nā ʻano ʻoihana like ʻole a me ke ola o kēlā me kēia lā. Ua ʻike mau ʻia ʻo ia ʻo "MSG ʻoihana".

ʻO Hydroxypropyl methyl cellulose (HPMC) kekahi o nā mea hoʻopuehu nui i ka ʻoihana polyvinyl chloride (PVC). I ka wā o ka polymerization hoʻokuʻu o vinyl chloride, hiki iā ia ke hoʻemi i ka hoʻopaʻapaʻa interfacial ma waena o VCM a me ka wai a kōkua i ka vinyl chloride monomers (VCM) i hoʻokaʻawale ʻia a paʻa hoʻi i loko o ka wai; pale i nā droplets VCM mai ka hui ʻana i ka wā mua o ke kaʻina polymerization; pale i nā ʻāpana polymer mai ka hui ʻana i ka pae hope o ke kaʻina polymerization. I loko o ka ʻōnaehana polymerization hoʻokuʻu, hoʻokani ia i kahi hana o ka hoʻopuehu a me ka pale ʻO ka hana pālua o ka paʻa.

I loko o ka polymerization hoʻokuʻu VCM, ua maʻalahi ka hui ʻana o nā kulu polymerization mua a me ka waena a me nā ʻāpana polymer hope i ka hoʻomaka, no laila pono e hoʻohui ʻia kahi mea hoʻomalu hoʻopuehu i ka ʻōnaehana polymerization hoʻomaha VCM. I ka hihia o kahi ʻano hui pū ʻana, ʻo ke ʻano, ke ʻano a me ka nui o ka dispersant i lilo i mau kumu koʻikoʻi e kāohi ai i nā ʻano o nā ʻāpana PVC.

Hōʻike Kimia

Papa huahana:

Nā hiʻohiʻona

(1)ʻO ka mahana polymerization: ʻO ka mahana polymerization ka mea e hoʻoholo ai i ka awelika molecular kaumaha o PVC, a ʻaʻohe hopena o ka dispersant i ke kaumaha mole. ʻOi aku ka kiʻekiʻe o ka mahana gel o ka dispersant ma mua o ka mahana polymerization e hōʻoia i ka hoʻopuehu ʻana o ka polymer e ka dispersant.

(2) ʻO nā hiʻohiʻona o nā ʻāpana: ʻāpana ʻāpana, morphology, porosity, a me ka mahele ʻāpana he mau hōʻailona koʻikoʻi ia o ka maikaʻi SPVC, e pili ana i ka hoʻolālā agitator/reactor, polymerization wai-a-aila ratio, dispersion system a me ka helu hoʻololi hope o VCM, o ʻo ia ka mea nui o ka ʻōnaehana hoʻopuehu .

(3) Hoʻoulu: E like me ka dispersion system, he hopena nui ia i ka maikaʻi o SPVC. Ma muli o ka nui o nā kulu VCM i loko o ka wai, piʻi ka wikiwiki o ka hoʻoulu ʻana a emi ka nui o ka droplet; ke kiʻekiʻe ka wikiwiki o ka hoʻoulu ʻana, e hōʻuluʻulu nā kulu a pili i nā ʻāpana hope.

(4) Pūnaehana palekana hoʻopuehu: Mālama ka ʻōnaehana pale i nā droplets VCM i ka wā mua o ka hopena e pale aku i ka hui ʻana; ʻo ka PVC i hana ʻia e hoʻoheheʻe ʻia i loko o nā droplets VCM, a mālama ka ʻōnaehana hoʻopuehu i ka hoʻohui ʻana o nā ʻāpana i hoʻomalu ʻia, i loaʻa ai nā ʻāpana SPVC hope loa. Hoʻokaʻawale ʻia ka ʻōnaehana dispersion i ka ʻōnaehana dispersion nui a me ka ʻōnaehana dispersion kōkua. ʻO ka dispersant nui he kiʻekiʻe alcoholysis degree PVA, HPMC, a me nā mea'ē aʻe, e pili ana i ka hana holoʻokoʻa o SPVC; Hoʻohana ʻia ka ʻōnaehana dispersing kōkua e hoʻomaikaʻi i kekahi mau hiʻohiʻona o nā ʻāpana SPVC.

(5) ʻO ka ʻōnaehana hoʻopuehu nui: Hiki ke hoʻoheheʻe ʻia i ka wai a hoʻopaʻa i nā kulu VCM ma o ka hōʻemi ʻana i ka ʻāʻī ma waena o VCM a me ka wai. I kēia manawa i ka ʻoihana SPVC, ʻo nā dispersants nui ʻo PVA a me HPMC. Loaʻa i ka PVC grade HPMC nā mea maikaʻi o ka haʻahaʻa haʻahaʻa, ke kūpaʻa wela a me ka hana plasticizing maikaʻi o SPVC. ʻOiai he ʻano pipiʻi, hoʻohana nui ʻia. ʻO ka PVC grade HPMC he mea koʻikoʻi ka dispersion protection agent ma PVC synthesis.

Hoʻopili ʻia

TʻO 25kg / pahu kona hoʻopili maʻamau 

20'FCL: 9 tons me ka palletized; 10 tons unpalletized.

40'FCL:18tona me ka palletized;20tona unpalletized.

Waihona:

E mālama i loko o kahi maloʻo maloʻo ma lalo o 30 ° C a pale ʻia mai ka haʻahaʻa a me ke kaomi ʻana, no ka mea he thermoplastic ka waiwai, ʻaʻole pono ka manawa mālama ma mua o 36 mau mahina.

Nā memo palekana:

ʻO ka ʻikepili ma luna nei e like me kā mākou ʻike, akā mai hoʻokuʻu i nā mea kūʻai aku e nānā pono iā ia a pau koke i ka loaʻa ʻana. No ka pale ʻana i nā ʻano hana like ʻole a me nā mea maka, e ʻoluʻolu e hoʻāʻo hou aʻe ma mua o ka hoʻohana ʻana.