Hydroxypropyl Methyl Cellulose zvigadzirwa zvine yakanyanya kushandiswa munzvimbo yekumisa polymerization yevinyl chloride muChina. Mukumiswa kwepolymerization yevinyl chloride, iyo yakapararira sisitimu ine chekuita chakananga pachigadzirwa, PVC resin, uye pamhando yekugadziriswa kwayo uye zvigadzirwa. HydroxypropylMethylCellulose inobatsira kuvandudza kugadzikana kwekupisa kweresin uye kudzora kugoverwa kwesaizi..PVC resin yakagadzirwa kubva kumhando yepamusoro HydroxypropylMethylCellulose haingogone kuve nechokwadi mutsara wekuita nemaitiro epasirese, asi zvakare inogona kuve yakanaka inooneka zvimiro zvemuviri, yakanakisa particle zvimiro uye yakanakisa kunyungudika rheological maitiro.
Mukugadzira maresin ekugadzira, akadai sepolyvinyl chloride, polyvinylidene chloride, uye mamwe macopolymers, suspension polymerization ndiyo inonyanya kushandiswa uye inofanirwa kuve isingachinjike hydrophobic monomers yakamiswa mumvura. Semapolima anonyungudika nemvura, HydroxypropylMethylCellulose chigadzirwa chine yakanakisa chiitiko chepamusoro uye inoshanda seyekudzivirira colloidal agents. HydroxypropylMethylCellulosecan inodzivirira zvinobudirira zvimedu zvepolymeric kubva mukugadzira uye agglomeration. Uyezve, kunyangwe HydroxypropylMethylCelluloseis iri mvura soluble polymer, inogona kunyungudika zvishoma mumahydrophobic monomers uye inogona kuwedzera monomer porosity yekugadzirwa kwepolymeric particles.
Uye zvakare, zvidzidzo zvakaratidza kuti mukugadzirwa kwePVC, mabhizinesi akasiyana anoshandisa akasiyana akapararira masisitimu, saka iyo yekunze yekuvhara zvimiro zvePVC inogadzirwa zvakasiyana, uye nekudaro HydroxypropylMethylCellulose inogona kukanganisa mashandiro ePVC resins. Mune inosanganiswa yekuparadzira agent system, iyo yekumisikidza PVC resin yakagadzirwa kubva kune yakasanganiswa dispersing agent ye polyvinyl doro (PVA) ine akasiyana alcoholysis uye polymerization madhigirii uye hydroxypropyl methyl cellulose (HPMC) inogona kuve nemhedzisiro yakasiyana pakuita kwekugadzirisa. Miedzo yakaratidza kuti musanganiswa weHydroxypropylMethylCellulose uye KP-08/KZ-04 ine alcoholysis dhigirii re68% -75% iri nani uye zvakare yakanakira porosity yeresin uye kutorwa kweplasticizers.
Nguva yekutumira: Kubvumbi-01-2022