⁦Light Stabilizer-944 CAS 70624-18-9⁩ - الصورة ⁦2⁩

⁦Light Stabilizer-944 CAS 70624-18-9⁩ - الصورة ⁦3⁩

⁦Light Stabilizer-944 CAS 70624-18-9⁩ - الصورة ⁦4⁩

ضوء استقرار-944 CAS 70624-18-9

CAS:70624-18-9
MF:(C35H66N8)n=4-5
MW:708.34
EINECS:274-570-6
المرادفات:صور-stabilizer944; HinderedAmineLightStabilizerHs-944; ACETOSTABUV-944; HS-944; 6-hexanediamine,n,n'-مكررا(2,2,6,6-ميثيل-4-piperidinyl)-polymerwith2

ما هو ضوء استقرار-944 CAS 70624-18-9？

الأشعة فوق البنفسجية-944, المعروف أيضا باسم ضوء استقرار HS-944, هو الأبيض إلى ضوء أصفر جزيئات أو مسحوق, نقطة انصهار 100-135°C, الوزن الجزيئي 2000-3100 ، مع التوافق ممتازة ، استخراج مقاومة تقلبات منخفضة. لأن الأشعة فوق البنفسجية-944 هو ارتفاع نسبة الكتلة الجزيئية استقرار ، جزيء يحتوي فقط على كمية كبيرة من ميثيل ، فمن مستقرة عندما تعامل مع الأكسجين الساخن.

UV 944 (CAS 70624-18-9), also known as Chimassorb 944 or UV Absorber 944, is a high-performance hindered amine light stabilizer (HALS) widely used in plastics, coatings, and polymer materials to protect against UV-induced degradation.

مواصفات

البند	مواصفات
نفاذية الضوء	≥93% بما 425nm أيضا ≥95% بما 450nm أيضا
الوزن الجزيئي	2000-3100 g/mol
نقطة انصهار	110-130oC
الكثافة	1.05 g/cm3
المتطايرة	≤0.5%
الرماد	≤0.1%

Key Features

1. Excellent light stabilization effect: UV-944 can effectively protect polymer materials from ultraviolet light exposure and photodegradation and thermal degradation caused by long-term thermal aging. Its light stabilization effect far exceeds that of ultraviolet absorbers and nickel-containing stabilizers, especially in pigment systems where the effect is more obvious.

2. Good compatibility and processing performance: It is a light yellow transparent granular material with low volatility. It has good compatibility with various polymer materials such as PP, LDPE, HDPE, and PVC. It can be easily dispersed in the polymer matrix without affecting the transparency and color of the resin, and has excellent processing performance.

3. Wide application range and safe and reliable: UV-944 is suitable for various forms of materials such as films, fibers, and thick products, and can be used for multiple polymers including polyolefins, polyurethanes, and polyamides. Meanwhile, it has been approved by the FDA and can be used in food contact applications, demonstrating a certain level of safety.

التطبيقات

Plastics: Protects films, sheets, and molded products from UV aging.
Coatings and Paints: Enhances color retention and durability under sunlight.
Polymer Materials: Applied in industrial polymers to extend service life and performance.