application

PVC resin ndicho chikamu chikuru chePVC tambo, uye hunhu hwayo hune pesvedzero huru pamakanika uye magetsi emidziyo yetambo.

1 Conductive nzira yePVC

Kazhinji, zvose erekitironi conduction uye ion conduction zvinoonekwa mumapolima, asi dhigirii rakasiyana.Musiyano mukuru pakati peaviri conductive mashandiro ndiwo musiyano wevatakuri vechaji.Mumapolymers, inotakura fluid yeelectron conduction mechanism ndiyo erekitironi yemahara iyo π bond erekitironi inobviswa.Iyo fluid inotakura yeion conduction mechanism inowanzo kuve yakanaka uye yakaipa ion.Mazhinji emapolymers akavakirwa pamagetsi conductivity ari conjugated mapolymers, uye PVC main chain inonyanya kuve imwechete bond link, haina conjugated system, saka inonyanya kuitisa magetsi neion conduction.Zvisinei, pamberi pechiedza chazvino uye cheUV, PVC inobvisa HCl uye kugadzira zvimedu zve polyolefin zvisina unsaturated, saka pane ma π-bonded electrons, anogona kutyaira magetsi.

2.2.1 molecular uremu

Kufurira kwehuremu hwemamorekuru pane conductivity yemapolymers inoenderana neiyo huru conductive nzira yemapolymers.Kune erekitironi conductance, iyo conductivity ichawedzera nekuti huremu hwemamorekuru hunowedzera uye intramolecular chiteshi cheerekitironi inorebesa.Nekuderera kwehuremu hwema molecular, iyo ion migration inowedzera uye conductivity inowedzera.Panguva imwecheteyo, huremu hwema molecular hunokanganisawo maitiro emagetsi ezvigadzirwa zvetambo.Iyo yakakwira huremu hwePVC resin, zviri nani kutonhora kwayo, kugadzikana kwekupisa uye simba remuchina.

2.2.2 Thermal kugadzikana

Thermal kugadzikana ndeimwe yeakanyanya kukosha uye yakakosha indexes yekuongorora kunaka kweresin.Iyo inobata zvakananga tekinoroji yekugadzirisa yezvigadzirwa zvepasi uye zvinhu zvezvigadzirwa.Nekushandiswa kwakapararira kwePVC zvivakwa zvekuvaka, kudiwa kwekugadzikana kwekupisa kwePVC resin kuri kuwedzera nekukwira.Kuchembera kuchena indekisi yakakosha yekuongorora kugadzikana kweresin, kuitira kutonga kugadzikana kwekupisa kweresin.

2.2.3 Ion content

Kazhinji, PVC inoitisa magetsi kunyanya neion conduction, saka maion ane simba rakakura pakuitisa.Iyo simbi cations (Na+, K+, Ca2+, Al3+, Zn2+, Mg2+, nezvimwewo) mupolymer inoita basa rinotungamira, nepo anions (Cl-, SO42-, nezvimwewo) ine simba shoma pane yemagetsi conductivity nekuda kwavo. radius yakakura uye inononoka kutama mwero.Kusiyana neizvi, apo PVC inogona kukonzera mhedzisiro ye dechlorination pasi pemagetsi ezvino uye UV mwaranzi, Cl- inoburitswa, mune iyo nyaya anion inobata basa guru.

2.2.4 Density inooneka

Iyo inooneka density uye kunyudzwa kwemafuta kweresin kunokanganisa post-processing zvimiro zve resin, kunyanya iyo plasticization yeresin, uye iyo plasticization inobata zvakananga zvimiro zvezvigadzirwa.Pasi pemagadzirirwo akafanana uye mamiriro ekugadzirisa, resin ine yakakwira inooneka density uye yakaderera porosity, iyo inogona kukanganisa kufambiswa kwezvinhu zvinoitisa muresin, zvichikonzera kukwirira kwechigadzirwa.

2.2.5 zvimwe

PVC resin mu "fisheye", ion yekusachena uye zvimwe zvinhu zviri mutambo yekugadzira tambo inova tsvina-yakafanana netsvina, kuitira kuti tambo yekumusoro irege kutsvedzerera, inokanganisa kutaridzika kwezvigadzirwa, uye "mabundu" akatenderedza kuumbwa kweimwe magetsi. gap, paradza iyo PVC zvinhu inherent insulation performance.

Pasi pemamiriro akafanana epashure pekugadzirisa, iyo inooneka density, plasticizer absorption uye zvimwe zviratidzo zvekushanda zvinokanganisa zvakananga mushure mekugadzirisa mhedzisiro, uye dhigirii rakasiyana repurasitiki rinotungamira kune musiyano wekuita kwechigadzirwa.

Mukuwedzera, zvidzidzo zvakaratidza kuti zvinowedzerwa nemapoka anoshanda zvinogona kuunzwa mushure mepolyvinyl chloride polymerization, semuenzaniso, pakupera kwe synthesis kana kusati kwaoma kwekupedzisira.Poly ine 1 ~ 30% mwando ine huwandu hwe0.0002 ~ 0.001% polycarboxylic acid, inogona kuvandudza vhoriyamu resistivity yezvigadzirwa.KUTANGA KWE 0.1-2% phosphate ion ine MACOMPOUNDS (alkyl hydrogen phosphate, ammonium oxyphosphate, C≤20 alkyl phosphate, organic phosphate) mu suspension polyvinyl chloride, uye kuwedzerwa kwe alkaline earth metal compounds ine 0.1-2%, kuitira kuti zviise papolymer, inogona kunyatso kuvandudza vhoriyamu kuramba uye dielectric kugara resin.