Juyawar Ƙirƙira don Fatar PVC Mai Cire Harogen Kyauta

Juyawar Ƙirƙira don Fatar PVC Mai Cire Harogen Kyauta

Gabatarwa

Abokin ciniki yana samar da fata na PVC mai ɗaukar wuta kuma a baya an yi amfani da antimony trioxide (Sb₂O₃). Yanzu suna nufin kawar da Sb₂O₃ kuma su canza zuwa masu kare harshen wuta marasa halogen. Tsarin na yanzu ya haɗa da PVC, DOP, EPOXY, BZ-500, ST, HICOAT-410, da antimony. Canjawa daga nau'in fata na PVC na antimony zuwa tsarin hana harshen wuta mara halogen yana wakiltar babban haɓakar fasaha. Wannan canjin ba wai kawai ya bi ƙa'idodin muhalli masu tsauri ba (misali, RoHS, REACH) har ma yana haɓaka hoton “kore” samfurin da gasa na kasuwa.

Mabuɗin Kalubale

1. Asarar Tasirin Haɗin Kai:
   • Sb₂O₃ ba mai karfin harshen wuta ba ne da kansa amma yana nuna kyakkyawan tasirin tasirin wutar lantarki tare da chlorine a cikin PVC, yana inganta haɓaka sosai. Cire antimony yana buƙatar nemo madadin tsarin mara halogen wanda ya kwaikwayi wannan haɗin gwiwa.
2. Ingantacciyar Ciwon Harshe:
   • Halogen-free harshen retardants sau da yawa yana buƙatar mafi girma lodi don cimma daidaitattun ƙididdiga masu kare harshen wuta (misali, UL94 V-0), wanda zai iya tasiri kaddarorin injina (laushi, ƙarfin ƙarfi, tsawo), aikin sarrafawa, da farashi.
3. Halayen Fata na PVC:
   • Fatar PVC tana buƙatar kyakkyawan laushi, jin hannu, ƙarewar ƙasa (embossing, sheki), juriya na yanayi, juriya na ƙaura, da ƙarancin zafin jiki. Sabon tsarin dole ne ya kiyaye ko yayi daidai da waɗannan kaddarorin.
4. Ayyukan Gudanarwa:
   • Babban lodi na filaye marasa halogen (misali, ATH) na iya shafar kwararar narkewa da kwanciyar hankali.
5. La'akarin Farashi:
   • Wasu ingantaccen ingantaccen halogen-free harshen retardants suna da tsada, yana buƙatar daidaitawa tsakanin aiki da farashi.

Dabarar Zaɓi don Tsarukan Retardant ɗin Harogen-Free Flame Retardant (na PVC Fata na Artificial)

1. Farkon Harshen Harshen Harshe - Karfe Hydroxides

• Aluminum Trihydroxide (ATH):
  • Mafi na kowa, mai tsada.
  • Mechanism: Bazuwar Endothermic (~ 200 ° C), sakin tururin ruwa don tsarma iskar gas mai ƙonewa da iskar oxygen yayin samar da shimfidar ƙasa mai kariya.
  • Abubuwan da aka dawo da su: Ƙananan inganci, babban kaya da ake buƙata (40-70 phr), yana rage yawan laushi, haɓakawa, da kuma aiki; bazuwar zafin jiki yana da ƙasa.
• Magnesium Hydroxide (MDH):
  • Mafi girman bazuwar zafin jiki (~ 340 ° C), mafi dacewa don sarrafa PVC (160-200 ° C).
  • Abubuwan da aka sake dawowa: Irin wannan babban lodi (40-70 phr) da ake bukata; dan kadan ya fi girma fiye da ATH; iya samun mafi girma sha danshi.

Dabarun:

• Fi son MDH ko gauran ATH/MDH (misali, 70/30) don daidaita farashi, daidaita yanayin zafin jiki, da jinkirin harshen wuta.
• Fuskar da aka bi da ita (misali, silane-coupled) ATH/MDH yana inganta dacewa da PVC, yana rage lalata dukiya, kuma yana haɓaka jinkirin harshen wuta.

2. Masu Haɓaka Harkar Wuta

Don rage ɗorawa mai ɗaukar wuta na farko da haɓaka haɓaka aiki, masu haɗin gwiwa suna da mahimmanci:

• Fosfour-Nitrogen Flame Retardants: Mafi dacewa don tsarin PVC marasa halogen.
  • Ammonium Polyphosphate (APP): Yana haɓaka caji, yana samar da Layer insulating.
    • Lura: Yi amfani da maki masu jure zafin jiki (misali, Mataki na II,>280°C) don guje wa ruɓe yayin aiki. Wasu APPs na iya shafar bayyana gaskiya da juriya na ruwa.
  • Aluminum Diethylphosphinate (ADP): Ingantaccen inganci, ƙarancin kaya (5-20 phr), ƙarancin tasiri akan kaddarorin, kwanciyar hankali na thermal mai kyau.
    • Jawowa: Mafi tsada.
  • Phosphate Esters (misali, RDP, BDP, TCPP): Aiki a matsayin robobi masu kare harshen wuta.
    • Ribobi: Dual rawar (plasticizer + harshen wuta retardant).
    • Fursunoni: Ƙananan kwayoyin halitta (misali, TCPP) na iya ƙaura/lalata; RDP/BDP suna da ƙarancin aikin filastik fiye da DOP kuma suna iya rage sauƙin yanayin zafi.
• Zinc Borate (ZB):
  • Ƙananan farashi, multifunctional (mai hana wuta, mai hana hayaki, mai tallata caja, anti-dripping). Yana aiki da kyau tare da tsarin ATH/MDH da phosphorus-nitrogen tsarin. Yawan lodi: 3-10 phr.
• Zinc Stannate/Hydroxy Stannate:
  • Kyawawan abubuwan hana hayaki da masu haɗa wuta, musamman ga polymers masu ɗauke da chlorine (misali, PVC). Za a iya maye gurbin wani bangare na aikin haɗin gwiwa na antimony. Yawan lodi: 2-8 phr.
• Haɗin Molybdenum (misali, MoO₃, Ammonium Molybdate):
  • Ƙaƙƙarfan abubuwan hana hayaki tare da haɗin kai mai saurin wuta. Yawan lodi: 2-5 phr.
• Nano Fillers (misali, Nanoclay):
  • Ƙananan lodi (3-8 phr) yana inganta jinkirin harshen wuta (samuwar char, rage yawan sakin zafi) da kaddarorin inji. Watsawa yana da mahimmanci.

3. Abubuwan da ke hana shan taba

PVC yana haifar da hayaki mai nauyi yayin konewa. Abubuwan da ba su da halogen sau da yawa suna buƙatar kashe hayaki. Zinc borate, zinc stannate, da molybdenum mahadi sune mafi kyawun zaɓi.

Ƙirƙirar Ƙirƙirar Harshen Wuta Mai Kyauta (Bisa ga Asalin Ƙirar Abokin Ciniki)

Manufa: Cimma UL94 V-0 (1.6 mm ko kauri) yayin kiyaye laushi, iya aiki, da mahimman kaddarorin.

Zato:

• Tsarin asali:
  • DOP: 50-70 phr (plasticizer).
  • ST: Mai yiwuwa stearic acid (mai mai).
  • HICOAT-410: Ca/Zn stabilizer.
  • BZ-500: Wataƙila taimakon mai mai / sarrafa kayan aiki (don tabbatarwa).
  • EPOXY: Epoxidized man waken soya (co-stabilizer/plasticizer).
  • Antimony: Sb₂O₃ (za a cire).

1. Shawarar Tsarin Tsarin Samfura (a kowace 100 phr PVC guduro)

2. Samfuran Misali (Yana Bukatar Ingantawa)

Matakan Aikata Mahimmanci

1. Tabbatar da Cikakkun Abubuwan Raw:
   • Bayyana bayanan sinadarai naBZ-500kumaST(tuntuɓi bayanan mai kaya).
   • Tabbatar da ainihin lodi naDOP,EPOXY, kumaSaukewa: HICOAT-410.
   • Ƙayyade buƙatun abokin ciniki: Maƙasudin jinkirin harshen wuta (misali, kauri na UL94), laushi (taurin), aikace-aikace (motoci, kayan daki, jakunkuna?), Bukatu na musamman (juriya sanyi, kwanciyar hankali UV, juriyar abrasion?), Iyakan farashi.
2. Zaɓi Ƙwararren Ƙwararrun Ƙwararru:
   • Nemi samfuran hana wuta mara halogen wanda aka keɓance don fata na PVC daga masu kaya.
   • Ba da fifiko ga ATH/MDH da aka yi masa magani don ingantacciyar tarwatsewa.
   • Don APP, yi amfani da maki masu jure zafin zafi.
   • Don esters phosphate, fi son RDP/BDP akan TCPP don ƙananan ƙaura.
3. Gwajin-Sikelin Lab & Ingantawa:
   • Shirya ƙananan batches tare da lodi daban-daban (misali, daidaita ma'auni MDH/APP/ZB/ZS).
   • Hadawa: Yi amfani da mahaɗa masu sauri (misali, Henschel) don tarwatsa iri ɗaya. Ƙara ruwa (plasticizers, stabilizers) da farko, sa'an nan kuma foda.
   • Gwajin Gudanarwa: Gwaji akan kayan samarwa (misali, Banbury mixer + calendering). Saka idanu lokacin plastification, narke danko, karfin juyi, ingancin saman.
   • Gwajin Aiki:
     • Jinkirin harshen wuta: UL94, LOI.
     • Kaddarorin injina: Tauri (Shore A), ƙarfin ƙarfi, elongation.
     • Taushi/ji na hannu: Ma'ana + Gwajin taurin.
     • Sauƙaƙan ƙarancin zafin jiki: Gwajin lanƙwasa sanyi.
     • Zaman lafiyar zafi: gwajin ja na Kongo.
     • Bayyanar: Launi, mai sheki, embossing.
     • (Na zaɓi) Yawan hayaki: ɗakin hayaki na NBS.
4. Shirya matsala & Daidaitawa:

5. Pilot & Production: Bayan inganta dakin gwaje-gwaje, gudanar da gwajin gwaji don tabbatar da kwanciyar hankali, daidaito, da farashi. Ƙaddamarwa kawai bayan tabbatarwa.

Kammalawa

Canjawa daga tushen antimony zuwa fata mai kare harshen wuta mara halogen yana yiwuwa amma yana buƙatar ci gaba na tsari. Babban tsarin ya haɗu da hydroxides na ƙarfe (zai fi dacewa MDH da ake bi da su), phosphorous-nitrogen synergists (APP ko ADP), da masu hana hayaki da yawa (zinc borate, zinc stannate). A lokaci guda, inganta kayan aikin filastik, stabilizers, man shafawa, da kayan aikin sarrafawa yana da mahimmanci.

Makullan Nasara:

1. Ƙayyade maƙasudi masu maƙasudi da ƙuntatawa (jinkirin harshen wuta, kaddarorin, farashi).
2. Zaɓi ingantattun abubuwan da ba su da halogen na harshen wuta (masu gyaran fuska, APP mai zafi).
3. Gudanar da gwajin gwaji mai tsauri (jinkirin wuta, kadarori, sarrafawa).
4. Tabbatar da daidaituwar haɗaɗɗiyar iri ɗaya da aiki.

   More info., you can contact lucy@taifeng-fr.com