6月 30, 2026

What Is Antioxidant 168 Used For? アプリケーション, Specs and Sourcing

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Chemical Identity

  • Chemical name: トリス(2,4-di-tert-butylphenyl) 亜リン酸塩
  • CAS番号: 31570-04-4
  • Molecular weight: 647.0 グラム/モル
  • 外観: White crystalline powder or granules
  • 融点: 183–187°C
  • Commercial equivalents: イルガフォス 168, Doverphos S-680

How It Works

As a secondary antioxidant, 酸化防止剤 168 decomposes hydroperoxides formed during melt processing, converting them to stable alcohols before they generate radicals. This protects the polymer during high-temperature extrusion and injection molding, preserving melt flow, 色, and molecular weight.

アプリケーション

  • Polypropylene (PP): Standard stabilization partner with Antioxidant 1010 また 1076
  • Polyethylene (PE): Critical in HDPE/LLDPE pipe compounds and film
  • ABS, ヒップ, and styrenic polymers: Color and MFI stabilization
  • Engineering plastics (パ, PBT, ペット): High-temperature processing stability
  • Thermoplastic elastomers (TPE, TPU): Color retention
  • Adhesives and hot-melt systems: Processing viscosity stability

Typical Dosage

Combined loading with Antioxidant 1010 で 1:1 また 1:2 ratio: 0.1–0.3% in polyolefins; 0.2–0.5% in engineering plastics.

よくある質問

Is Antioxidant 168 the same as Irgafos 168?
Chemically identical (CAS 31570-04-4). イルガフォス 168 is the BASF brand; 酸化防止剤 168 is the generic designation used by Chinese manufacturers.

Is it food-contact approved?
はい. FDAに上場 21 CFR §178.2010 and EU Plastics Regulation 10/2011. Specific migration limits apply.

Contact SUNCHEM

Get pricing, samples, and COA for Antioxidant 168. Contact SUNCHEM for export documentation and technical support.

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