Polyvinyl chloride (PVC)plastiki chinhu chakaumbwa chakaumbwa nekusanganisa PVC resin nezvimwe zvakasiyana-siyana. Iyo inoratidza yakanakisa michina zvivakwa, makemikari corrosion kuramba, kuzvidzima hunhu, kunaka kwemamiriro ekunze kuramba, epamusoro magetsi ekudzivirira zvivakwa, nyore kugadzirisa, uye mutengo wakaderera, zvichiita kuti ive chinhu chakanakira waya uye tambo yekuvharira uye sheathing.
PVC resin ndeye mutsara thermoplastic polymer inoumbwa neiyo polymerization yevinyl chloride monomers. Yayo molecular chimiro ine:
(1) Se thermoplastic polymer, inoratidza kunaka kwepurasitiki uye kuchinjika.
(2) Kuvapo kweC-Cl polar bonds kunopa resin yakasimba polarity, zvichiita kuti pave nepamusoro-soro dielectric constant (ε) uye dissipation factor (tanδ), apo ichipa simba rakakwirira re dielectric pane yakaderera frequencies. Aya mabhondi epolar anobatsirawo kune akasimba intermolecular masimba uye yakakwira mechanic simba.
(3) Maatomu eklorini ari muchimiro chemolecular anopa zvinhu zvinodzora murazvo pamwe chete nemakemikari akanaka uye kusagadzikana kwemamiriro ekunze. Nekudaro, aya maatomu eklorini anovhiringa chimiro chekristaro, zvichitungamira kune kushoma kupisa kwekudzivirira uye kushomeka kwekutonhora, izvo zvinogona kuvandudzwa kuburikidza neakakodzera ekuwedzera.
2.Marudzi ePVC Resin
Nzira dzekupolymerization dzePVC dzinosanganisira: kumiswa kwepolymerization, emulsion polymerization, yakawanda polymerization, uye mhinduro polymerization.
Iyo yekumisikidza polymerization nzira parizvino yakanyanya muPVC resin kugadzirwa, uye iyi ndiyo mhando inoshandiswa muwaya netambo kunyorera.
Suspension-polymerized PVC resins inoiswa muzvikamu zviviri zvezvimiro:
Loose-type resin (XS-mhando): Inoratidzwa ne porous dhizaini, yakakwirira plasticizer kunyudza, nyore plastification, zviri nyore kugadzirisa kutonga, uye mashoma gel zvidimbu, zvichiita kuti ive sarudzo yakasarudzika yewaya uye tambo yekushandisa.
Compact-type resin (XJ-mhando): Inonyanya kushandiswa kune zvimwe zvigadzirwa zvepurasitiki.
3.Zvinhu zvakakosha zvePVC
(1)Electrical Insulation Properties: Seyakanyanya polar dielectric zvinhu, PVC resin inoratidza yakanaka asi yakaderera zvishoma magetsi ekudzivirira emagetsi zvichienzaniswa neasiri-polar zvinhu zvakaita se polyethylene (PE) uye polypropylene (PP). Vhoriyamu resistivity inodarika 10¹⁵ Ω·cm; pa 25 ° C uye 50Hz frequency, dielectric constant (ε) inotangira kubva ku3.4 kusvika ku3.6, yakasiyana zvikuru nekushisa uye kuchinja kwehuwandu; the dissipation factor (tanδ) inotangira pa0.006 kusvika pa0.2. Simba rekuputsika rinoramba rakakwirira pakupisa kwekamuri uye frequency yesimba, isingabatwe ne polarity. Nekudaro, nekuda kwekurasikirwa kwayo kwakakwira dielectric, PVC haina kukodzera kukwirisa-voltage uye yakakwirira-frequency application, ichiwanzo shandiswa sechinhu chekudzivirira chetambo dzakaderera-uye dzepakati-voltage pazasi 15kV.
(2) Kuchembera Kugadzikana: Nepo chimiro chemolecular chinoratidza kugadzikana kwakanaka kwekuchembera nekuda kweklorini-carbon bonds, PVC inowanzoburitsa hydrogen chloride panguva yekugadziriswa pasi pekupisa uye kushushikana kwemagetsi. Oxidation inotungamira mukudzikira kana kuyambuka-kubatanidza, zvichikonzera kushanduka-shanduka, kusvibiswa, kuderera kukuru mumagetsi emagetsi, uye kuderera kwekushanda kwemagetsi ekudzivirira. Naizvozvo, ma stabilizer akakodzera anofanirwa kuwedzerwa kuvandudza kuchembera kuramba.
(3) Thermomechanical Properties: Seamorphous polymer, PVC iripo munzvimbo nhatu dzemuviri patembiricha dzakasiyana: girazi mamiriro, yakakwirira-elastic state, uye viscous flow state. Iine tembiricha yekuchinjisa girazi (Tg) yakatenderedza 80 ° C uye tembiricha yekuyerera ingangoita 160 ° C, PVC muchimiro chayo chegirazi patembiricha yekamuri haigone kusangana newaya netambo yekushandisa zvinodiwa. Kugadziriswa kunodiwa kuti uwane yakakwira elasticity pane tembiricha yekamuri uchichengetedza kupisa kwakaringana uye kutonhora kwekudzivirira. Kuwedzerwa kweplasticizers kunogona kunyatsogadzirisa tembiricha yegirazi yekuchinja.
Semutengesi anotungamira wewaya uye tambo zvigadzirwa, IMWE NYIKA (OW Cable) inopa emhando yepamusoro PVC makomisheni ekudzivirira uye maapplication ekuisa, anoshandiswa zvakanyanya mutambo dzemagetsi, waya dzekuvaka, tambo dzekukurukurirana, uye waya dzemotokari. Zvishandiso zvedu zvePVC zvinoratidzira zvakanakisa kuvharwa kwemagetsi, kudzoreredza murazvo, uye kuramba mamiriro ekunze, zvichitevedza mitemo yepasi rose yakadai seUL, RoHS, uye ISO 9001. Takazvipira kuendesa mhinduro dzePVC dzakavimbika uye dzisingadhuri dzakagadzirirwa zvinodiwa nevatengi vedu.
Nguva yekutumira: Mar-27-2025