Kuunzwa kwePVC Plastic Properties uye Common Colorants

Kubva pane zvinoshamisa zvePVC plastiki, ikozvino inoshandiswa munzvimbo dzakawanda dzehupenyu. Uye aya PVC mapepa, anowanzo kugadzirwa zvigadzirwa. Iyo inowedzera imwe colorants mukugadzira maitiro kuita kuti zvigadzirwa zvive zvakanyanya kunaka. Asi vamwe vanhu havazivi zvakawanda pamusoro peizvi, nhasi chinyorwa ichi chichazivisa zvakadzama.

PVC resin ndeye thermoplastic ine zvimiro zvisina kutsanangurwa. Nzvimbo yekunyorovesa ye resin iri padyo nekushisa kwekuparara. Yatanga kuora pa140 ℃, uye zvakatonyanya kukurumidza pa170 ℃. Nekuda kwezviri mukati maatomu echloride, iyo polyethylene molecule uye macopolymers ayo anowanzo kushivirira murazvo nekudzima-kudzima uye kudonha-isina zvimiro. Iyo yakawanda isina kugadzikana polymer iyo zvakare yakasvibiswa nechiedza uye kupisa. Iyo ine zvakare yakanakisa kemikari kugadzikana simba, uye yakakosha zvakanyanya sechinhu chinodzivirira kupisa. PVC yakagadzikana kune akawanda inorganic acids uye mabhesi uye yakakamurwa yehydrogen chloride.Inogona kunyungudika mumaketoni uye zvinonyungudutsa zvinonhuhwirira.

Iwo mavara anoshandiswa kumapurasitiki ePVC anonyanya kuve organic uye inorganic pigment. PVC mapurasitiki ane zvakakwirira zvinodikanwa zvepigment, senge tembiricha yekudzivirira panguva yekugadziriswa, hapana kutama mukugadzirisa, mwenje kuramba, etc. Inowanzoshandiswa colorants ndeiyi: 1, tsvuku inonyanya kunyungudika azo pigment, cadmium tsvuku inorganic pigment, iron oxide red pigment, phthalocyanine tsvuku, nezvimwewo; 2, yero kunyanya chromium yero, cadmium yero uye fluorescent yero; 3, orchid ruvara kunyanya phthalocyanine yebhuruu; 4, yegirini kunyanya phthalocyanine yegirini; 5, chena inonyanya kushandisa titanium dioxide; 6, yepepuru kunyanya ipurasitiki yepepuru; 7, dema rinonyanya kabhoni dema. Mukuwedzera, fluorescent whitening agent inoshandiswa kuchena; goridhe nesirivha poda inoshandiswa pakudhinda kwemavara; uye bead poda astigmatism epurasitiki separera.

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