Ti-Resin ta PVC ta xiyimo xa le henhla SG3, SG5, SG7: Vuinjhiniyere lebyi lulamisiweke eka Switshuxo swa Tiindasitiri swa Makumu ku ya eka Makumu

Dizayini ya Molekhuli & Swihlawulekisi swa Miri

SG3 (High - Giredi ya ku cinca-cinca) .
Yi endliwe hi polymerization degree ya 1300 - 1500 na K - value ya 70 - 72, grade leyi yina ti molecular chains to leha leti antswisaka ku khomiwa ka plasticizer. Ku hangalasiwa ka yona ka swiphemuphemu swa 60 - 250μm switiyisisa ku hangalaka loku fanaka eka swivumbeko swa soft compound, leswi pfumelelaka 25 - 35g ya ku amukeriwa ka plasticizer hi 100g ya resin. Xivumbeko xa amorphous lexi humelelaka xinyika ku leha loku hlawulekeke loko ku tshoveka, leswi endlaka leswaku yiva kahle eka switirhisiwa leswi lavaka ku olovisiwa hiku phindha-phindha handle ko pandzeka.

SG5 (Xikarhi xa swilo swo hambana-hambana - Giredi) .
Ku ringanisela degree ya polymerization ya 1000 - 1100 na K - value ya 65 - 67, SG5 yinyika ndzhawu yale xikarhi leyi cinca cincaka. Ku tsindziyela ka yona ka ti particle density (0.45 - 0.58g/mL) swi olovisa ku khuluka ka melt loku rhetaka eka extrusion na injection molding, kasi ku amukeriwa ka plasticizer loku ringaneleke (20 - 28g/100g) swiendla leswaku kuva na ku cinca kusuka eka semi - rigid cable sheaths kuya eka low - flexibility profiles. Ku tshamiseka ka molecular chain swihunguta swihoxo swa processing, leswi tiyisisaka ku enta ka rirhangu loku nga cincekiki eka ku humesiwa ka tiphayiphi.

SG7 (Gredi ya Vuinjhiniyere byo tiya) .
Hi degree ya polymerization ya 700 - 850 na K - value ya 60 - 62, SG7 yi rhangisa molecular packing efficiency kuva yi tiya. Xivumbeko xa yona xa ti particle xa 40 - 180μm (density 0.50 - 0.62g/mL) xi hunguta ti voids eka swiphemu leswi vumbiweke, leswi antswisaka ku lwisana na ku khumbeka eka ti profiles to aka. Ku amukeriwa ka plasticizer yale hansi (15 - 22g/100g) swipfumelela ti formulations leti tiyeke hiku hetiseka, kasi residual vinyl monomer ≤3μg/g yi fikelela swipimelo swa vuhlayiseki bya swakudya - contact eka switirhisiwa swa ku paka.

Ikhosisteme ya Switirhisiwa

SG3: Mutivi wa ku Cinca-cinca
Eka swiyenge swa vurimi, tifilimi leti simekiweke eka SG3 - letingana 40 - 50 phr plasticizer additions ti endla UV - stabilized greenhouse covers, ku ringanisela ku hundziseriwa ka ku vonakala na matimba yo lwisana na mihloti. Eka switirhisiwa swa vutshunguri, nhlayo ya yona yale hansi ya monomer yi endla leswaku kuva na ti tubing to olova eka michini ya dialysis, kasi eka swiambalo swa milenge, yi endla ti elastic soles leti hlayisaka xivumbeko eka ku cinca cinca ka mahiselo.

SG5: Hanci ya Ntirho ya le ka Indasitiri
Vaendli va tikhebulu va tirhisa SG5’s 10 - 20 phr plasticizer range ku humelerisa ti flame - retardant insulation sheaths ta tigridi ta gezi, ku hlanganisa ku pfalela ka gezi na ku tiya ka michini. Loko yi akiwa, yi humesa eka swiphemu swo pfalela leswi nga ngheniwiki hi maxelo ya mafasitere, laha ku tiya ka yona loku ringaneleke ku lwisanaka ni ku onhiwa ka ozone. Swiphemu swa mimovha leswi vumbiweke hi injection -, kufana na ti door trims, swivuyeriwa eka nkucetelo wa yona - matimba - kuya eka - ntiko ratio.

SG7: Nghwazi ya Rigidity
Tisisiteme ta tiphayiphi ta tiindasitiri ti titshege hi modulus ya le henhla ya SG7 eka tiphayiphi ta ndzhope leti nga na tikhemikhali na tiphayiphi ta mati leti ringanyetiweke hi ntshikelelo. Ti profile ta mafasitere leti humesiweke, loko ti hlanganisiwa na titanium dioxide, ti kombisa ku tiya ka mihlovo yo hlawuleka eka tindzhawu tale handle. Vaendli va switirhisiwa swa elektroniki va yi tirhisa eka tindlu ta switirhisiwa leswi vumbiweke hi injection - va tirhisa ku tshamiseka ka yona ka dimensional hi nkarhi wa nhlengeletano ya mahiselo ya le henhla.

Nkongomiso wa ku Antswisa Maendlelo

Tinhlamuselo ta Vulawuri bya ku Hisisa
SG3 yi lava vulawuri byo tiya bya mahiselo (160 - 180°C) ku sivela ku bola ka nkarhi; hambi kuri ku tlula mpimo ka 10°C swinga endla leswaku ku humesiwa hydrochloric acid, leswi endlaka leswaku kuva na ku tshwuka. Kuhambana na sweswo, SG7 yi tiyisela ku lulamisiwa ka 180 - 200°C, leswi pfumelelaka ti extrusion rates to hatlisa eka tiphayiphi letikulu - diameter, hambi leswi ku tlula 210°C swinga ekhombyeni ra molecular chain scission.

Dizayini ya Sisiteme yo Engetela
Ku tiyisisa: SG3 yi lava 1 - 2 phr ya ti calcium - zinc composite stabilizers ku lwisana na ku onhaka ka mahiselo hinkarhi wa ku lulamisiwa ka high - plasticizer, kasi SG7 yi lava ntsena 0.5 - 1 phr hikokwalaho ka kuhunguteka ka ntshikelelo lowu hlohleteriwaka hi plasticizer.
Ku cheriwa mafurha: Ti grade hinkwato ti vuyeriwa eka 0.2 - 0.5 phr ya polyethylene wax, kambe SG3 yinga lava mimpimo yale henhla kuva yi hunguta ku hlangana ka le ndzeni eka ti compounds to olova.
Swiengeteri leswi tirhaka: Ti antioxidants eka swivumbeko swa SG7 ti engetela vutomi bya vukorhokeri bya le handle, kasi ti impact modifiers eka SG5 ti ndlandlamuxa ku lwisana na notch eka switirhisiwa swa xirhami - maxelo.

Vutshila bya Vuinjhiniyere eka Dizayini ya Resin

Hi ku hlanganisa vunjhiniyara bya timolekhuli lebyi kongomeke na ku kamberiwa loku fambiwaka hi matirhiselo, photifoliyo ya hina ya SG3, SG5, SG7 yi nyika vaendli matimba ku tlula swipimelo swa ndhavuko swa PVC. Kusuka eka ku cinca cinca loku lavekaka eka switirhisiwa swa vutshunguri leswi lahliwaka kuya eka vutshembeki bya xivumbeko lebyi lavekaka hi ku aka ka xiyimo xale henhla, ti resins leti ti katsa ku hlanganisiwa ka ku nonoka ka sayense na ku tirha ka indasitiri—ku veka swipimelo leswintshwa swa swintshuxo swa polymer leswi fambiwaka hi matirhelo.

Swihlawulekisi swa kona

Xiphephana xa Vulawuri bya Khwalithi