ntchito

Zopangira zopangira komanso katundu wa pulasitiki wamatabwa wa PVC.

Ufa wa mtengo wa PVC ndi ulusi wamatabwa ndi kudzaza kwachilengedwe (calcium carbonate), mafuta, stabilizer, thovu, chowongolera thovu, tona ndi zina zowonjezera (plasticizer, toughening agent, coupling agent), etc.

1, utomoni m'nyumbaSG-7, SG-7 utomoni fluidity ndi zabwino kuchita thovu, komanso kuchepetsa mtengo wosakaniza SG-5 mtundu.

2. Kudzazidwa kwenikweni ndi nkhuni ufa (zambiri za 80-120 mauna a nkhuni ufa ndi zambiri poplar nkhuni ufa), ndipo calcium carbonate ndi kuwala kashiamu carbonate (800-1000-1200 mauna).

3, mafuta odzola nthawi zambiri amagwiritsa ntchito stearic acid, parafini, sera ya PE, calcium stearate ndi zosakaniza zina molingana ndi gawo lofunikira kuti apange dongosolo lamafuta apulasitiki amatabwa.Stearic acid, parafini yotsika mtengo yabwino yopangira mafuta, kuipa kwake ndi malo otsika osungunuka (madigiri oposa 50), malo otsika osungunuka amafuta popereka mafuta amakhala ndi zotsatira za plasticizer, kutengera kulimba kwa zinthu, d khadi. ndi matenthedwe mapindikidwe kutentha otsika mankhwala pamodzi ndi kutentha, zosavuta mapindikidwe ndi zosavuta precipitate zimakhudza kupanga.Ngati PE sera ndi 100% koyera, malo osungunuka angafikire madigiri oposa 100 sangachepetse vica wa mankhwala, ndipo akhoza kupanga wosanjikiza wandiweyani kutentha sera filimu pamwamba pa mankhwala, kuti pamwamba kuwala kwa mankhwala ndi otchuka kwambiri.Calcium stearate imatha kufulumizitsa pulasitiki yazinthu ndipo imakhala ndi kukhazikika kwina.

4, stabilizer, ntchito PVC kupanga stabilizer pawiri kutsogolera mchere stabilizer, malata organic, calcium nthaka stabilizer, etc. The stabilizer ambiri ntchito matabwa pulasitiki China ndi gulu kutsogolera mchere stabilizer, amene ali ubwino wa mtengo wotsika mtengo ndi zabwino matenthedwe bata. .Choyipa chake ndi chapoizoni komanso chosakonda zachilengedwe.Komabe, gawo la mafuta ophatikizika amchere amchere okhazikika ndi pafupifupi 50%.Kukhazikika kwa calcium ndi zinki kutentha stabilizer ndi koyipa kuposa kuwongolera mchere wowongolera, koma ndi wochezeka komanso wopanda poizoni.Pofuna kupititsa patsogolo ntchito, calcium ndi zinki stabilizer nthawi zambiri zimaphatikizidwa ndi sera ya antioxidant ndi kutentha kwapamwamba, stearic acid, etc., yomwe imapangidwa kukhala yogwira ntchito zambiri, yamagulu ambiri komanso yothandiza kwambiri PVC pokonza wothandizira ndi ndondomeko yapadera.Ndizoyenera kupanga zinthu zachilengedwe za PVC komanso zodzaza kwambiri.Ndiwotsika kwambiri kutentha komanso wothandizira matabwa - zinthu zapulasitiki.A:

1. Tsatirani malangizo a EU ROHS ndi malamulo a PAHS;

2. Momwemonso utomoni pansi pa malo ofanana organic malata ndi kutsogolera mchere stabilizer yoyenera kuonjezera kuchuluka kwa filler.

3. Poyamba tinting katundu ndi ofanana organic malata, organic malata ali ndi fungo lachilendo, calcium ndi nthaka stabilizer alibe fungo lachilendo.

4. The processing ntchito bwino kuposa organotin ndi lead salt stabilizer, chifukwa ndi wa stearic acid sopo, ndi mofulumira plasticization.

5. Kachulukidwe ka calcium ndi zinc stabilizer akufanana ndi utomoni wa PVC, kotero kubalalitsidwa kwake kuli bwino kuposa organotin ndi lead salt stabilizer, yomwe imathandizira kwambiri kubalalitsidwa kwake mu utomoni;

6. Ikhoza kupititsa patsogolo mapeto a zinthu;

7. Kukhazikika kwamafuta abwino komanso kukongoletsa koyambirira.

8. Onjezani pang'ono kuposa mtengo womwewo wotsogolera stabilizer

5, chowombera chimagwiritsidwa ntchito ndi AC kuwomba wothandizila ndi choyera chowomba.Ubwino wa AC wotulutsa thovu ndi kuchuluka kwa tsitsi, kuchuluka kwake ndi kochepa, choyipa ndichakuti kuwonongeka kosakwanira kumakhalabe gawo laling'ono pazogulitsa, pakagwiritsidwe ntchito kumawoneka ngati kusapangidwa kwazinthu, kutulutsa thovu kumalo opangira zinthu komanso kusapezeka komwe kumapangidwa. mankhwala kupirira-nyengo katundu akhoza imathandizira kukalamba, kumasula kuchuluka kwa kutentha kuwonongeka, chifukwa kuwonongeka kwa zinthu kusintha mtundu, woyera ndi endothermic thobvu wothandizila ndi thovu wothandizila Kuonjezera oyenerera akhoza bwino neutralize kutentha owonjezera anamasulidwa ndi kuwonongeka kwa AC kuwomba wothandizira, kotero kuti mtundu wa mankhwala ndi woyera kwambiri.

6, chowongolera chotulutsa thovu nthawi zambiri chimasankhidwa pagulu lachiwiri A chowongolera kukhuthala kwakukulu, chowongolera chapawiri A (monga HF-100/200/80, etc.) osati kukana kwanyengo kokha, komanso kumakhala ndi magwiridwe antchito abwino kwambiri apulasitiki, pangani zinthuzo pamwamba. chophatikizika kwambiri, chowala bwino.Kuphatikizika kwa chowongolera chotulutsa thovu kumatha kufulumizitsa pulasitiki ndikupulumutsa kugwiritsa ntchito mphamvu pakutentha kochepa.Chowongolera chotulutsa thovu chingathe kusintha bwino kufanana ndi kachulukidwe ka mabowo a thovu, kuchepetsa kachulukidwe kazinthu zopangidwa ndi thovu la pulasitiki.Tsopano, pofuna kuchepetsa ndalama, ambiri opanga matabwa pulasitiki matabwa amasankha kugwiritsa ntchito zinthu zazing'ono chitoliro, zipangizo pulasitiki monga wallboard zinyalala kupanga, mzere amene amasewera m'munsi, monga matabwa pulasitiki mankhwala, yachiwiri zinthu plasticizing mmbuyo mofulumira kuposa latsopano. zakuthupi zambiri, zokhala ndi mphamvu zochepa zosungunula, kuti zigwire bwino ntchito, zitha kusankha plasticizing pang'onopang'ono kusungunuka mphamvu ya thovu regulator (monga HF - 80/901) zotsatira ndi bwino, Inde, mtengo adzakhala apamwamba kuposa Zithunzi za HF-100

7, oyenera zachilengedwe nkhuni mtundu wachikasu, wofiira, wakuda, titaniyamu woipa ndi zina zotero.Mitundu yachikasu ndi yofiyira ndi yosakhazikika komanso yachilengedwe.Ubwino wa toner wa inorganic ndikuti ndi wabwino kuposa organic toner mu kukana kwanyengo komanso kukana kusamuka komanso kutentha kwambiri.Choyipa ndichakuti kuchuluka kwa toner ya inorganic ndi yayikulu, yomwe si yoyenera mitundu yowala, koma mtengo wake ndi wotsika mtengo.Organic tona m'malo mwake.Mitengo yachilengedwe imagwiritsidwa ntchito kuphatikiza ndi organic ndi inorganic toner.Titanium dioxide ili ndi mtundu wa rutile ndi mtundu wa anatase wachiwiri.Mtundu wa rutile wophimba mphamvu ndi kukana kwa nyengo ndi wabwino kuposa mtundu wa anatase, kotero nkhuni zachilengedwe nthawi zambiri zimakhala ndi rutile titanium dioxide.

8, CPE, ambiri kusankha 135A mtundu, panopa ndi mtengo kwambiri amphamvu toughening zosintha pa msika, Kuwonjezera oyenera akhoza kupanga matabwa pulasitiki mankhwala ndi kulimba bwino, koma kuchuluka kwa zofewa pambuyo zambiri, kulabadira kusintha kuchuluka kwa ntchito. .

9. DOP ndi epoxy soya mafuta ambiri ntchito PVC chilengedwe nkhuni plasticizer.DOP ikhoza kuchepetsa mphamvu ya intermolecular ya utomoni kuti ipititse patsogolo madzi, ndipo imakhala ndi mafuta ena omwe amathandiza kupanga ndi kukonza.Koma zikhoza kuchepetsa woimira mankhwala.Kilogalamu imodzi ya DOP imatha kuchepetsa vicar ndi madigiri atatu.Mphamvu ya pulasitiki ya mafuta a soya si yabwino ngati ya DOP, koma imakhala ndi kukhazikika kwa kutentha, komwe kumachepetsanso vica ya mankhwala.Chifukwa chake, kugwiritsa ntchito plasticizer kumayenera kusamala kwambiri.