I-PVC kwiNtambo kunye neCable: Iimpawu zezinto ezibalulekileyo

1. I-PVC Resin

I-resin ye-PVC yi-polymer ethe ngqo ye-thermoplastic eyenziwe yi-polymerization yee-monomers ze-vinyl chloride. Iimpawu zayo zesakhiwo se-molecular:

(1) Njenge-polymer ye-thermoplastic, ibonisa ukuguquguquka okuhle kunye nokuguquguquka.

(2) Ubukho beebhondi ze-C-Cl polar bunika i-resin strong polarity, nto leyo ebangela i-dielectric constant ephezulu (ε) kunye ne-dissipation factor (tanδ), ngelixa ibonelela ngamandla aphezulu e-dielectric kumaza aphantsi. Ezi bhondi ze-polar zikwanegalelo kumandla aqinileyo e-intermolecular kunye namandla aphezulu oomatshini.

(3) Iiathom zekhlorine kwisakhiwo semolekyuli zinika iipropati ezithintela ilangatye kunye nokumelana okuhle kweekhemikhali kunye nemozulu. Nangona kunjalo, ezi athom zekhlorine ziyayiphazamisa isakhiwo sekristale, nto leyo ekhokelela ekumelaneni nobushushu obuphantsi kunye nokumelana nokubanda okuphantsi, okunokuphuculwa ngokusebenzisa izongezo ezifanelekileyo.

2. Iintlobo zeResin yePVC

Iindlela zokwenza i-polymerization ye-PVC ziquka: i-suspension polymerization, i-emulsion polymerization, i-bulk polymerization, kunye ne-solution polymerization.

Indlela yokwenza i-suspension polymerization yeyona iphambili kwimveliso ye-PVC resin, kwaye olu lolona hlobo lusetyenziswayo kwiifowuni nakwiintambo.

Iiresini zePVC ezixutyiweyo nge-suspension-polymerized zahlulwe zibe ziifom ezimbini zesakhiwo:
I-resin yohlobo olukhululekileyo (uhlobo lwe-XS): Ibonakala ngesakhiwo esineembobo, ukufunxwa kweplastiki eninzi, ukuplasta okulula, ulawulo lokucubungula olulula, kunye neenxalenye ezimbalwa zejeli, nto leyo eyenza ukuba ibe lolona khetho lukhethwayo kwiifowuni nakwiintambo.
I-resin yohlobo oluncinci (uhlobo lwe-XJ): Isetyenziswa kakhulu kwezinye iimveliso zeplastiki.

3. Iipropati eziphambili zePVC

(1) Iipropati zokugquma umbane: Njengezinto ezisebenza nge-dielectric ezikwi-polar ephezulu, i-resin ye-PVC ibonisa iipropati zokugquma umbane ezilungileyo kodwa eziphantsi kancinci xa kuthelekiswa nezinto ezingezizo ezikwi-polar ezifana ne-polyethylene (PE) kunye ne-polypropylene (PP). Ukumelana nomthamo kudlula i-10¹⁵ Ω·cm; kwi-frequency ye-25°C kunye ne-50Hz, i-dielectric constant (ε) isusela kwi-3.4 ukuya kwi-3.6, yahluka kakhulu ngotshintsho lobushushu kunye ne-frequency; i-dissipation factor (tanδ) isusela kwi-0.006 ukuya kwi-0.2. Amandla okuqhekeka ahlala ephezulu kubushushu begumbi kunye ne-frequency yamandla, engachaphazeleki yi-polarity. Nangona kunjalo, ngenxa yokulahleka kwayo okuphezulu kwe-dielectric, i-PVC ayifanelekanga kwizicelo ze-high-voltage kunye ne-frequency ephezulu, isetyenziswa njengezinto zokugquma kwiintambo ze-low-and-medium-voltage ezingaphantsi kwe-15kV.

(2) Uzinzo Lokwaluphala: Nangona isakhiwo se-molecular sibonisa uzinzo oluhle lokwaluphala ngenxa yeebhondi ze-chlorine-carbon, i-PVC idla ngokukhupha i-hydrogen chloride ngexesha lokucubungula phantsi koxinzelelo lobushushu nolwe-mechanical. I-oxidation ikhokelela ekuwohlokeni okanye ekudibaniseni, okubangela ukutshintsha kombala, ukuqhekeka, ukwehla okukhulu kweempawu ze-mechanical, kunye nokwehla kokusebenza kwe-insulation yombane. Ke ngoko, kufuneka kongezwe iziqinisi ezifanelekileyo ukuphucula ukumelana nokwaluphala.

(3) Iipropati zeThermomechanical: Njengepolymer engaguqukiyo, iPVC ikhona kwiimeko ezintathu ezibonakalayo kumaqondo obushushu ahlukeneyo: imeko yeglasi, imeko ye-high-elastic, kunye nemeko yokuhamba okuxineneyo. Ngobushushu bokutshintsha kweglasi (Tg) obumalunga nama-80°C kunye nobushushu bokuhamba malunga ne-160°C, iPVC kwimeko yayo yeglasi kumaqondo obushushu egumbi ayinakuhlangabezana neemfuno zokusetyenziswa kwentambo kunye nentambo. Uhlengahlengiso luyimfuneko ukuze kufezekiswe ukuthamba okuphezulu kumaqondo obushushu egumbi ngelixa kugcinwa ubushushu obaneleyo kunye nokumelana nokubanda. Ukongezwa kweeplastiki kunokulungisa ngempumelelo ubushushu bokutshintsha kweglasi.

MalungaIHLABATHI ELINYE (Intambo ye-OW)

Njengomthengisi ophambili wezixhobo zombane kunye neentambo, i-ONE WORLD (OW Cable) ibonelela ngeekhompawundi zePVC ezikumgangatho ophezulu zokufakelwa nokufakwa kwe-sheathing, ezisetyenziswa kakhulu kwiintambo zamandla, kwiintambo zokwakha, kwiintambo zonxibelelwano, nakwiintambo zeemoto. Izixhobo zethu zePVC zinokufakelwa kombane okugqwesileyo, ukubambezeleka komlilo, kunye nokumelana nemozulu, zihambelana nemigangatho yamazwe ngamazwe efana ne-UL, i-RoHS, kunye ne-ISO 9001. Sizimisele ukubonelela ngezisombululo zePVC ezinokuthenjwa nezingabizi kakhulu ezilungiselelwe iimfuno zabathengi bethu.