Munguva yekugadzirwa kwepurasitiki, zvinosimbisa calcium zinc zvine electronegativity yakakwira, uye ma node ePVC resin ane hukama hwakati, zvichigadzira strong bond energy complexes.
Zvigadzirisi zvecalcium zinc zvinogona kukamurwa kuita zvigadzirisi zvecalcium zinc zvakasimba uye zvigadzirisi zvecalcium zinc zvine mvura
Chinogadzirisa calcium zinc yemvura chinoshanda nemaresini nemaplasticizer, chine kujeka kwakanaka, mvura shoma, chiyero chidiki, uye chiri nyore kushandisa. Dambudziko guru nderekuti mafuta haana kunaka uye kuora panguva yekuchengetwa kwenguva refu.
Zvigadzirisi zvecalcium zinc zvakasimba zvinoumbwa nesipo ye stearic acid. Chigadzirwa ichi chine mafuta akanaka uye chakakodzera kugadziriswa mapaipi ePVC akaomarara uye ma profiles.
Zvigadzirwa zvinogadzirwa uchishandisa tekinoroji ye microemulsification zvinokunda matambudziko ataurwa pamusoro apa. Tarisa pakuvandudza kubva pazvinhu zviviri: kushandura ruvara rwekutanga, kushandisa sipo ye zinc yakakwana, uye kushandisa musanganiswa wezvinhu zvakasiyana-siyana kuti zinc chloride isakuvadze, iyo inova zinc complex yakawanda; Kuderedza huwandu hwesipo ye zinc kudzivirira kutsva kwe zinc uye kushandura ruvara rwekutanga nezvinowedzera kunozivikanwa sekusanganisa zinc zvishoma. Haingoshandiswi zvakanyanya muzvigadzirwa zvakapfava chete, asiwo mukugadzirisa zvigadzirwa zvakaoma.
Zvigadzirisi zvecalcium zinc, nekuda kwehukuru hwazvo hwe electronegativity, zvine hukama hwakati kuti ne acute nodes dze PVC resin panguva ye plasticization process, zvichigadzira strong bond energy complexes izvo zvinoderedza kana kugadzirisa kukwezva kwe ion bonds muzvikamu zvakasiyana zve PVC. Izvi zvinoita kuti zvikamu zve PVC zvinobatana zvive nyore kupararira, uye mapoka emamorekuru anowanzo kuve nemiganhu midiki, izvo zvinobatsira kuti PVC resin iite plasticization. Zvinokonzera kuwedzera kwakanyanya kwekumanikidzwa kwekunyunguduka, zvichinyunguduka.
Kupenya kwemuviri kunoderera, tembiricha inowedzera, uye tembiricha yekuisa purasitiki inoderera.
Pamusoro pezvo, sezvo michina yechinyakare yekugadzirisa PVC yakagadzirirwa kugadziriswa uchishandisa lead salt stabilizers, kunyangwe paine mafuta akakwana akawedzerwa, haigone kudzivirira resin kuti isarambe ichiiswa purasitiki munguva yakakwana, zvichikanganisa kuenzana kwekuzora kwekutanga. Padanho rekupedzisira rekushandiswa, PVC melt inoshandisa huwandu hwakawanda hwe heat stabilizer muchikamu che homogenization, asi panguva imwe chete haigone kuwana viscosity uye elasticity yakakwana kuti isangane nezvinodiwa zvekugadzira PVC yakaoma.
Nguva yekutumira: Gunyana-02-2024
