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Kushandurwa Kwekugadzirwa Kweganda rePVC Risingapi Halogen Rinodzoreredza Murazvo

Kushandurwa Kwekugadzirwa Kweganda rePVC Risingapi Halogen Rinodzoreredza Murazvo

Nhanganyaya

Mutengi anogadzira dehwe rePVC rinodzivirira moto uye antimony trioxide (Sb₂O₃) yaimboshandiswa. Iye zvino vava kuda kubvisa Sb₂O₃ vochinja kuita halogen-free flame retardants. Mushonga uripo unosanganisira PVC, DOP, EPOXY, BZ-500, ST, HICOAT-410, uye antimony. Kuchinja kubva pakugadzira dehwe rePVC rakagadzirwa neantimony kuenda kuhalogen-free fire-retardant system kunomiririra kuvandudzwa kukuru kwetekinoroji. Kuchinja uku hakungotevedzeri mitemo yakaoma yezvakatipoteredza (semuenzaniso, RoHS, REACH) asiwo kunosimudzira mufananidzo we "green" wechigadzirwa uye kukwikwidzana kwemusika.

Matambudziko Akakosha

  1. Kurasikirwa neMugumisiro weSynergistic:
    • Sb₂O₃ haisi mushonga unodzivirira moto wakasimba wega asi ine mhedzisiro yakanaka yekubatana kwe chlorine muPVC, zvichivandudza kushanda zvakanaka. Kubvisa antimony kunoda kutsvaga imwe nzira isina halogen inotevedzera kubatana uku.
  2. Kushanda Nemoto Kunonoka:
    • Zvinhu zvinodzora moto zvisina halogen zvinowanzoda zvinhu zvakawanda kuti zviwane zviyero zvakafanana zvekudzivirira moto (semuenzaniso, UL94 V-0), izvo zvinogona kukanganisa hunhu hwemakanika (kupfava, simba rekudhonza, kureba), mashandiro ekugadzirisa, uye mutengo.
  3. Hunhu hweganda rePVC:
    • Dehwe rePVC rinoda kupfava kwakanyanya, kubatwa nemaoko, kupenya kwepamusoro (kushongedza, kupenya), kuramba mamiriro ekunze, kuramba kufamba, uye kuchinjika kwekupisa kwakaderera. Chigadzirwa chitsva chinofanira kuchengetedza kana kuenderana nehunyanzvi uhwu.
  4. Kugadzirisa Mashandiro:
    • Kuwanda kwemafiller asina halogen (semuenzaniso, ATH) kunogona kukanganisa kuyerera kwekunyunguduka uye kugadzikana kwekugadzirisa.
  5. Kufunga Nezvemutengo:
    • Zvimwe zvinodzora moto zvisina halogen zvinodhura zvakanyanya, zvichiita kuti pave nekuenzanisa pakati pekushanda kwemoto nemutengo.

Nzira Yekusarudza Masisitimu Asina Halogen Anodzivirira Moto (ePVC Artificial Dehwe)

1. Zvinhu Zvinodzivirira Moto Zvikuru - Metal Hydroxides

  • Aruminiyamu Trihydroxide (ATH):
    • Yakajairika, isingadhuri.
    • Maitiro: Kuora kweEndothermic (~200°C), ichiburitsa utsi hwemvura kuti ideredze magasi anobvira neokisijeni uku ichigadzira chikamu chekudzivirira pamusoro.
    • Dambudziko: Kushanda zvishoma, mutoro wakawanda unodiwa (40–70 phr), zvinoderedza zvakanyanya kupfava, kureba, uye kugona kushandiswa; tembiricha yekuora yakaderera.
  • Magnesium Hydroxide (MDH):
    • Kupisa kwakanyanya kwekuora (~340°C), kwakakodzera kugadziriswa kwePVC (160–200°C).
    • Dambudziko: Zvinodiwa zvinhu zvakawanda zvakafanana (40–70 phr); mutengo wakakwira zvishoma pane ATH; zvinogona kunyudza hunyoro zvakanyanya.

Maitiro:

  • Sarudza MDH kana musanganiswa weATH/MDH (semuenzaniso, 70/30) kuti mutengo uenzane, tembiricha yekugadzirisa ienderane, uye kunonoka kwemurazvo.
  • Yakagadziriswa pamusoro (semuenzaniso, yakabatana ne silane) ATH/MDH inovandudza kushanda nePVC, inoderedza kuora kwechinhu, uye inowedzera kunonoka kwemoto.

2. Vabatsiri veMurazvo Vanodzivirira Moto

Kuti kuderedze mutoro unodzivirira moto uye kuwedzera kushanda zvakanaka, ma synergists akakosha:

  • Zvinodzivirira Moto zvePhosphorus-Nitrogen: Zvakanakira masisitimu ePVC asina halogen.
    • Ammonium Polyphosphate (APP): Inokurudzira kupisa, zvichiita kuti pave nechikamu chinodzivirira kupisa mukati mevhu.
      • Cherechedza: Shandisa magiredhi anodzivirira kupisa kwakanyanya (semuenzaniso, Phase II, >280°C) kudzivirira kuora panguva yekugadzirisa. Mamwe maAPP anogona kukanganisa kujeka uye kuramba mvura.
    • Aluminum Diethylphosphinate (ADP): Inoshanda zvakanyanya, ine mutoro wakaderera (5–20 phr), haina simba rakawanda pahunhu hwayo, uye ine kugadzikana kwakanaka pakupisa.
      • Dambudziko: Mutengo wakakwira.
    • Maesta ePhosphate (semuenzaniso, RDP, BDP, TCPP): Anoshanda sezvinhu zvinodzora moto zvinoita kuti pave nepurasitiki.
      • Zvakanakira: Basa rechipiri (plasticizer + rinodzora moto).
      • Zvakaipa: Mamorekuru madiki (semuenzaniso, TCPP) anogona kufamba-famba/kuoma; RDP/BDP ine kushanda kwakaderera kwepurasitiki kupfuura DOP uye inogona kuderedza kuchinjika kwekupisa kwakaderera.
  • Zinc Borate (ZB):
    • Yakachipa, inoshanda zvakawanda (inodzora moto, inodzvinyirira utsi, inosimudzira char, inodzivirira kudonha kwemvura). Inoshanda zvakanaka neATH/MDH uye phosphorus-nitrogen systems. Kutakura kwakajairika: 3–10 phr.
  • Zinc Stannate/Hydroxy Stannate:
    • Zvinodzvinyirira utsi zvakanaka uye zvinodzivirira moto, kunyanya zvemapolymer ane chlorine (semuenzaniso, PVC). Zvinogona kutsiva chikamu chebasa rekubatana kweantimony. Kutakura kwakajairika: 2–8 phr.
  • Makomputa eMolybdenum (semuenzaniso, MoO₃, Ammonium Molybdate):
    • Zvinodzvinyirira utsi zvakasimba zvine simba rekudzivirira moto. Kutakura kwakajairika: 2–5 phr.
  • Zvishandiso zveNano (semuenzaniso, Nanoclay):
    • Kurema kwakaderera (3–8 phr) kunovandudza kunonoka kwemurazvo (kuumbwa kwechar, kuderera kwekubuda kwekupisa) uye hunhu hwemakanika. Kupararira kwakakosha.

3. Zvinodzvinyirira Utsi

PVC inogadzira utsi hwakawanda panguva yekutsva. Mishonga isina halogen inowanzoda kudziviswa kweutsi. Zinc borate, zinc stannate, uye molybdenum compounds isarudzo dzakanaka kwazvo.

Kugadzirwa Kwemafuta Asina Halogen Anodzivirira Moto (Zvichibva Pakugadzirwa Kwepakutanga Kwemutengi)

Chinangwa: Kusvika paUL94 V-0 (1.6 mm kana gobvu) uku uchichengetedza kupfava, kugona kushandiswa, uye hunhu hwakakosha.

Mafungiro:

  • Chigadzirwa chekutanga:
    • DOP: 50–70 phr (purasitiki).
    • ST: Zvichida stearic acid (chinonyorovesa).
    • HICOAT-410: Chinosimbisa Ca/Zn.
    • BZ-500: Zvichida chinhu chinozorwa/chinobatsira pakugadzirisa (kusimbisa).
    • EPOXY: Oiri yesoya yakasanganiswa ne epoxidized (co-stabilizer/plasticizer).
    • Antimony: Sb₂O₃ (inofanira kubviswa).

1. Chimiro Chekugadzira Chinokurudzirwa (pa 100 phr PVC resin)

Chikamu Basa Kurodha (phr) Zvinyorwa
PVC Resin Polima yehwaro 100 Huremu hwepakati nepakati/hwakakwirira hwemamorekuru ekugadzirisa/zvinhu zvakaenzana.
Purasitiki Yekutanga Kupfava 40–60 Sarudzo A (Mutengo/Kuenzanisa Kwebasa): Chikamu chephosphate ester (semuenzaniso, RDP/BDP, 10–20 phr) + DOTP/DINP (30–50 phr). Sarudzo B (Kukosha Kwekupisa Kushoma): DOTP/DINP (50–70 phr) + PN inoshanda zvakanaka inodzivirira moto (semuenzaniso, ADP, 10–15 phr). Chinangwa: Gadzirisa kupfava kwepakutanga.
Chinodzivirira Moto Chekutanga Kudzivisa moto, kudzima utsi 30–50 Musanganiswa weMDH kana MDH/ATH wakacheneswa pamusoro (semuenzaniso, 70/30). Kuchena kwakanyanya, saizi yezvidimbu zvidiki, wakacheneswa pamusoro. Gadzirisa mutoro kuti utaridzike kuti moto wacho usashande zvakanaka.
Mubatsiri wePN Kunonoka kwemurazvo kwakanyanya, kukwidziridzwa kwechar 10–20 Sarudzo 1: APP ine tembiricha yepamusoro (Chikamu chechipiri). Sarudzo 2: ADP (kushanda zvakanaka, kurodha kwakaderera, mutengo wakakwira). Sarudzo 3: Mapurasitiki ePhosphate ester (RDP/BDP) - gadzirisa kana atoshandiswa semapurasitiki.
Mushonga weSynergist/Smoked Depressant Kunonoka kwemoto kwakanyanya, kuderedza utsi 5–15 Musanganiswa unokurudzirwa: Zinc borate (5–10 phr) + zinc stannate (3–8 phr). Sarudzo: MoO₃ (2–5 phr).
Chinosimbisa Ca/Zn (HICOAT-410) Kugadzikana kwekupisa 2.0–4.0 Zvakakosha! Kuda kurodha kwakakwira zvishoma zvichienzaniswa nemafomura eSb₂O₃.
Oiri yeSoya Yakasanganiswa neEpoxidized (EPOXY) Co-stabilizer, purasitiki 3.0–8.0 Chengeta kuti igare yakasimba uye ishande zvakanaka pakupisa kwakaderera.
Mafuta ekuzora Rubatsiro rwekugadzirisa, kusunungurwa kwemukuyu 1.0–2.5 ST (stearic acid): 0.5–1.5 phr. BZ-500: 0.5–1.0 phr (gadzirisa zvichienderana nebasa). Gadzirisa kuti zvikwane zvakawanda.
Rubatsiro rweKugadzirisa (semuenzaniso, ACR) Simba rakanyunguduka, kuyerera 0.5–2.0 Zvakakosha pakugadzira mafomura anozadza zvakawanda. Zvinovandudza kupenya kweganda uye kugona kwaro.
Zvimwe Zvinowedzerwa Sezvinodiwa – Zvinodhayagiramu, zvinosimbisa UV, mishonga inouraya utachiona, nezvimwewo.

2. Muenzaniso wekugadzira (Unoda Kugadziriswa)

Chikamu Rudzi Kurodha (phr)
PVC Resin K-kukosha ~65–70 100.0
Purasitiki Yekutanga DOTP/DINP 45.0
Phosphate Ester Plasticizer RDP 15.0
MDH Yakarapwa Pamusoro – 40.0
APP Yekupisa Kwakanyanya Chikamu chechipiri 12.0
Zinc Borate ZB 8.0
Zinc Stannate ZS 5.0
Chinosimbisa Ca/Zn HICOAT-410 3.5
Oiri yeSoya Yakasanganiswa neEpoxidized Epokisi 5.0
Stearic Acid ST 1.0
BZ-500 Mafuta ekuzora 1.0
Rubatsiro rwekugadzirisa ACR – 1.5
Zvinodhayagira, nezvimwewo. – Sezvinodiwa

Matanho Akakosha Ekuita

  1. Simbisa Ruzivo rweZvinhu Zvisina Kugadzirwa:
    • Tsanangura hunhu hwemakemikari eBZ-500uyeST(bvunza mapepa edata evatengesi).
    • Tarisa huwandu hwacho hwakakwanaDOP,EpokisiuyeHICOAT-410.
    • Tsanangura zvinodiwa nemutengi: Kunonoka kwemoto (semuenzaniso, ukobvu hweUL94), kupfava (kuoma), kushandiswa (mota, fenicha, mabhegi?), zvinodiwa zvakakosha (kumira kutonhora, kugadzikana kweUV, kuramba kukwesha?), miganhu yemutengo.
  2. Sarudza Magiredhi Anodzivirira Moto Akananga:
    • Kumbira sampuro dzinodzora moto dzisina halogen dzakagadzirirwa dehwe rePVC kubva kuvatengesi.
    • Isai ATH/MDH yakacheneswa pamusoro kuti ipararire zviri nani.
    • Pakushandisa APP, shandisa magiredhi asingapindi tembiricha zvakanyanya.
    • Kune maester ephosphate, shandisai RDP/BDP pane TCPP kuti muwane kufamba kushoma.
  3. Kuedzwa kweLab-Scale & Optimization:
    • Gadzirira mabheti madiki ane zvinhu zvakasiyana-siyana (semuenzaniso, gadzirisa zviyero zveMDH/APP/ZB/ZS).
    • Kusanganisa: Shandisai ma mixers anomhanya zvakanyanya (semuenzaniso, Henschel) kuti muparadzire zvakaenzana. Wedzerai zvinwiwa (plasticizers, stabilizers) kutanga, mozoisa hupfu.
    • Kuedza Kugadzira: Edza pamidziyo yekugadzira (semuenzaniso, Banbury mixer + calendering). Tarisa nguva yekuisa plaster, viscosity yekunyunguduka, torque, uye mhando yenzvimbo.
    • Kuedzwa Kwekushanda:
      • Kunonoka kwemurazvo: UL94, LOI.
      • Hunhu hwemakanika: Kuoma (Shongwe A), simba rekudhonza, kureba.
      • Kupfava/kunzwa kweruoko: Kuongororwa kwemuviri + kuomarara.
      • Kuchinjika kwekupisa kwakaderera: Kuedza kukotama kwechando.
      • Kugadzikana kwekupisa: Kuongororwa kweCongo tsvuku.
      • Chitarisiko: Ruvara, kupenya, kushongedza.
      • (Sarudzo) Kuwanda kweutsi: Kamuri reutsi reNBS.
  4. Kugadzirisa Matambudziko & Kuenzanisa:
Dambudziko Mhinduro
Kusakwana kwekunonoka kwemurazvo Wedzera MDH/ATH kana APP; wedzera ADP; gadzirisa ZB/ZS; ita shuwa kuti yakapararira.
Hunhu husina kunaka hwemakanika (semuenzaniso, kureba kushoma) Deredza MDH/ATH; wedzera PN synergist; shandisa mafillers akacheneswa pamusoro; gadzirisa mapurasitiki.
Matambudziko ekugadzirisa (kusviba kwakanyanya, nzvimbo isina kunaka) Gadzirisa mafuta ekushandisa; wedzera ACR; tarisa kusanganisa; gadzirisa tembiricha/kumhanya.
Mutengo wakakwira Gadzirisa zvinhu zvinorema; shandisa misanganiswa yeATH/MDH isingadhuri; ongorora dzimwe nzira.
  1. Kufamba Nendege & Kugadzira: Mushure mekugadzirisa murabhoritari, itai bvunzo dzekuedza kuti muone kugadzikana, kuenderana, uye mutengo. Wedzerai chete mushure mekusimbiswa.

Mhedziso

Kuchinja kubva paganda rePVC risingashandise halogen rinodzivisa moto kunogoneka asi kunoda kugadzirwa kwakarongeka. Nzira huru iyi inosanganisa simbi hydroxides (zviri nani kushandisa MDH yakacheneswa pamusoro), phosphorus-nitrogen synergists (APP kana ADP), uye zvinhu zvinodzvinyirira utsi zvinoshanda zvakasiyana-siyana (zinc borate, zinc stannate). Panguva imwe chete, kugadzirisa mapurasitiki, zvinosimbisa, mafuta, uye zvinhu zvinobatsira pakugadzirisa zvinhu zvakakosha.

Makiyi Ekubudirira:

  1. Tsanangura zvinangwa zvakajeka nezvirambidzo (kunonoka kwemoto, zvivakwa, mutengo).
  2. Sarudza zvinodzivirira moto zvisina halogen (zvinozadza pamusoro, APP inodziya zvakanyanya).
  3. Ita bvunzo dzakasimba dzemurabhoritari (kunonoka kwemoto, zvivakwa, kugadzirisa).
  4. Iva nechokwadi chekusanganisa kwakafanana uye kuenderana kwemaitiro.

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Nguva yekutumira: Nyamavhuvhu-12-2025
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