Tixraaca Tixraaca V-0 Caagagga Daboolka-Celinta ee PVC

Tixraaca Tixraaca V-0 Caagagga Daboolka-Celinta ee PVC

Si loo gaaro qiimeynta dib u dhaca ololka ee V-0 (sida waafaqsan heerarka UL-94) ee balaastikada heerkulbeegga ah ee PVC, aluminium hypophosphite iyo boric acid waa laba dib-u-celin olol caadi ah. Heerarkooda dheeriga ah waxay u baahan yihiin in la wanaajiyo iyadoo lagu salaynayo qaabaynta gaarka ah, xaaladaha habaynta, iyo shuruudaha waxqabadka. Hoos waxaa ku yaal qaar ka mid ah talooyin iyo tixraacyo kala duwan:

1. Heerka Kordhinta Aluminium Hypophosphite

Aluminium hypophosphite waa holac fosfooraska ku salaysan oo hufan oo ku habboon alaabta PVC. Waxay joojisaa gubashada iyadoo samaynaysa lakab fosfooreed ilaalin ah oo sii daaya gaaska phosphoric acid.

• Heerka lagu daro ee lagu taliyay: 15-25 saac(qayb boqolkii qaybood ee resin)
• Wixii PVC caadiga ah, ku dar hareeraha20 phraluminium hypophosphite caadi ahaan wuxuu gaaraa V-0 qiimeynta dib u dhaca ololka.
• Dib u dhigista holaca sare, qiyaasta waa la kordhin karaa, laakiin saameynta qalabka farsamada waa in la tixgeliyaa.
• Ka taxadaritaan:
• Aluminium hypophosphite ee xad dhaafka ah ayaa laga yaabaa inay yaraato waxqabadka habaynta (tusaale, socodka liidata).
• Waxaa lagu talinayaa in lagu daro ololka dib-u-celinta kale (tusaale, boric acid, aluminium hydroxide) saamaynta is-dhexgalka.

2. Heerka Kordhinta Boric Acid

Boric acid waa dib-u-dhige holac-yar oo ka shaqeeya marka hore iyada oo loo marayo kala-goynta endothermic iyo samaynta lakab ilaalin u eg.

• Heerka lagu daro ee lagu taliyay: 5-15 phr
• Boric acid waxaa sida caadiga ah loo isticmaalaa dib-u-dhigista ololka labaad, iyo xaddi xad-dhaaf ah ayaa laga yaabaa inay waxyeeleyso qalabka farsamada iyo farsamaynta.
• In PVC, ku daray agagaarka10 phrAashitada boric waxay la mid noqon kartaa aluminium hypophosphite si kor loogu qaado dib u dhaca ololka.
• Ka taxadaritaan:
• Boric acid waa hygroscopic, markaa kaydinta iyo maaraynta waa inay ka fogaadaan nuugista qoyaanka.
• Saameynteeda holac-celintu way xaddidan tahay marka keligiis la isticmaalo; waxaa caadi ahaan lagu daraa dab-demiska kale ee ololka (tusaale, aluminium hypophosphite, aluminium hydroxide).

3. Samaynta Isku-dhafan ee Aluminium Hypophosphite iyo Boric Acid

Si loo gaaro qiimeynta V-0, aluminium hypophosphite iyo boric acid ayaa lagu dari karaa saameynta isdhexgalka. Hoos waxaa ku yaal qaabeynta tixraaca:

• Aluminium hypophosphite: 15-20 phr
• Boric acid: 5-10 phr
• Waxyaabaha kale ee lagu daro:
• Plasticizer (tusaale, DOP): Sida loo baahdo (lagu hagaajiyay iyadoo lagu saleynayo shuruudaha adagaanta PVC)
• Dejinta:2–5 saac(tusaale, cusbada rasaasta, xasiliyayaasha calcium-zinc)
• Saliid:0.5-1 phr(tusaale, stearic acid)

Tusaale ahaan:

• Xabagta PVC:100 phr
• Aluminium hypophosphite:18 phr
• Zinc borate:8 phr
• Balaastiiste (DOP):40 phr
• Dejinta:3 phr
• Saliid:0.8 phr

4. Tijaabinta iyo Hagaajinta

Codsiyada wax ku oolka ah, tillaabooyinka soo socda ayaa lagula talinayaa tijaabinta iyo tayaynta:

1. Samaynta tijaabada:Diyaarso tijaabo-yar oo ku salaysan tirada tixraacyada.
2. Imtixaanka UL-94:Samee tijaabooyin gubasho toosan si aad u qiimayso qiimaynta daahitaanka ololka.
3. Imtixaanka waxqabadka:Qiimee sifooyinka farsamada (tusaale, xoogga xajinta, xoogga saamaynta) iyo habaynta waxqabadka (tusaale, socodka, xasiloonida kulaylka).
4. Hagaajinta:Hagaajin heerarka dheeriga ah ee aluminium hypophosphite iyo boric acid ama soo bandhig kuwa kale ee ololka (tusaale, aluminium hydroxide, antimony trioxide) si kor loogu qaado waxqabadka.

5. Tixgelinta Muhiimka ah

• Heerkulka habaynta:Heerkulka burburka ee aluminium hypophosphite iyo boric acid ayaa aad u sarreeya; Hubi in heerkulka habayntu aanu dhaafin xadkan si looga fogaado xaalufka.
• Kala firdhisanHubi kala firdhisanaanta isku midka ah ee dabaysha ololka ee PVC si looga hortago arrimaha fiirsashada gudaha.
• Saamaynta deegaanka:Aluminium hypophosphite iyo boric acid labaduba waa dib-u-soo-celinta ololka deegaanka, laakiin waa in la xaqiijiyaa la jaanqaadida waxyaabaha kale ee lagu daro.

6. Gabagabo

Si loo gaaro qiimeynta dib-u-dhac ololka V-0 ee balaastikada heerkulbeegga ee PVC, heerarka lagu taliyey ee lagu daro waa15-25 phr ee aluminium hypophosphiteiyo5-15 phr ee boric acid. Isticmaalka wadajirka ah ee dab-celiyayaashaan waxay kor u qaadi karaan waxqabadka. Ficil ahaan, wanaajinta ku salaysan qaabaynta gaarka ah iyo shuruudaha waxqabadka waa lama huraan, iyo UL-94 waa in la sameeyaa si loo xaqiijiyo qiimaynta dib u dhaca ololka.

More info. , pls contact lucy@taifeng-fr.com