Sidee loo dhimaa cufnaanta qiiqa xabagta epoxy-ga ee leh AHP iyo MCA ololka?

Ku darida aluminium hypophosphite iyo MCA ee xabagta epoxy waxay keenaysaa sii deynta qiiqa sare. Isticmaalka borate zinc si loo yareeyo cufnaanta qiiqa iyo qiiqa qiiqa waa wax macquul ah, laakiin qaabka hadda jira wuxuu u baahan yahay in lagu hagaajiyo saamiga.

1. Habka Xakamaynta qiiqa ee Zinc Borate

Zinc borate waa ka hortag qiiq wax ku ool ah iyo synergist olol dib u dhiga. Nidaamkeeda waxaa ka mid ah:

• Horumarinta Char Formation: Wuxuu sameeyaa lakab dhuxul cufan inta lagu jiro gubashada, go'doominta ogsijiinta iyo kulaylka, iyo yaraynta sii-deynta gaasta gubanaysa.
• Joojinta qiiqa: Waxay kicisaa falcelinta isku-dhafan si loo yareeyo jiilka qiiqa, hoos u dhigista cufnaanta qiiqa (gaar ahaan waxtar u leh polymers sida epoxy).
• Saamaynta Isku-dhafkaWaxay kordhisaa dib u dhaca ololka marka lagu daro fosfooraska ku salaysan (tusaale, aluminium hypophosphite) iyo nitrogen-ku salaysan (tusaale, MCA) dib-u-celinta ololka.

2. Beddelka ama Kaabayaasha Sigaarka

Si aad u sii wanaajiso xakamaynta qiiqa, tixgeli xalalka soo socda ee isku-dhafka ah:

• Isku-dhafka Molybdenum(tusaale, zinc molybdate, molybdenum trioxide): Ka waxtar badan borate zinc laakiin ka qaalisan; lagu taliyay in lagu daro zinc borate (tusaale, zinc borate: zinc molybdate = 2:1).
• Aluminium/Magnesium Hydroxide: Waxay u baahan tahay rarka sare (20-40 phr), taas oo laga yaabo inay saameyn ku yeelato sifooyinka farsamada epoxy-si taxadar leh u hagaaji.

3. Hagaajinta qaabaynta ee lagu taliyay

Iyadoo loo maleynayo in qaabeynta asalka ah ay tahayaluminium hypophosphite + MCA, halkan waxaa ah tilmaamaha hagaajinta (ku salaysan 100 qaybood oo epoxy resin):

Xulashada 1: Ku darida Tooska ah ee Zinc Borate

• Aluminium hypophosphite: Ka yaree 20-30 phr ilaa15-25 phr
• MCA: Ka yaree 10-15 saac ilaa8-12 phr
• Zinc borate: ku dar5-15 phr(ka bilow tijaabada 10 phr)
• Wadarta nuxurka dab-demiska: Ku hay30-40 phr(iska ilaali xaddi xad dhaaf ah oo saameeya waxqabadka xabagta).

Doorashada 2: Zinc Borate + Zinc Molybdate Synergy

• Aluminium hypophosphite:15-20 phr
• MCA:5-10 phr
• Zinc borate:8-12 phr
• Zinc molybdate:4-6 phr
• Wadarta nuxurka dab-demiska:30-35 phr.

4. Halbeegyada Xaqiijinta Muhiimka ah

• Dib u Dhigista Ololka: UL-94 gubasho toosan, imtixaanada LOI (bartilmaameedka: V-0 ama LOI> 30%).
• Cufnaanta qiiqaIsticmaal tijaabada cufnaanta qiiqa (tusaale, qolka qiiqa NBS) si aad u barbar dhigto dhimista Qiimaynta Cufnaanta qiiqa (SDR).
• Guryaha Makaanikada: Hubi in xoogga jilicsanaanta iyo xoogga adhesion ay buuxiyaan shuruudaha daaweynta ka dib.
• Geedi socodkaXaqiiji kala firdhisanaanta yunifoomka dab-demiska adiga oo aan saamaynayn viscosity ama wakhtiga daawaynta.

5. Tixgelinta

• Xakamaynta Cabbirka QaybahaDooro nano-xajmiga zinc borate (tusaale, cabbirka walxaha <1 μm) si loo hagaajiyo kala firdhisanaanta.
• Wax ka beddelka dusha sare: Ku daawee borate zinc wakiilka isku xidhka silane si aad kor ugu qaaddo waafaqid resin epoxy.
• U Hogaansanaanta NidaamintaHubi in dab-demisyada la doortay ay la kulmaan RoHS, REACH, iyo xeerar kale.

6. Samaynta Tusaale (Tixraac)

7. Kooban

• Zinc borate waa doorasho wax ku ool ah oo lagu yareeynayo qiiqa sii deynta. Waxaan ku talinaynaa ku darida10-15 phriyadoo si dhexdhexaad ah loo yareeyo aluminium hypophosphite/MCA content.
• Xakamaynta qiiqa dheeraadka ah, ku dar xeryahooda molybdenum (tusaale,4-6 phr).
• Xaqiijinta tijaabadu waa lagama maarmaan si loo dheellitiro dib u dhaca ololka, xakamaynta qiiqa, iyo sifooyinka farsamada.

Let me know if you’d like any refinements! Lucy@taifeng-fr.com