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

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

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

Luz, Estabilizador de-944 CAS 70624-18-9

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

O que é a Luz Estabilizador-944 CAS 70624-18-9？

UV-944, também conhecida como luz, estabilizador de HS-944, é o branco para o amarelo claro partículas ou pó, ponto de fusão 100-135°C, peso molecular 2000-3100, com excelente compatibilidade, extração de resistência e de baixa volatilidade. Desde UV-944 é uma relativa alta massa molecular estabilizador, e a molécula contém apenas uma grande quantidade de methylate, é estável, quando tratados com oxigênio quente.

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.

Especificação

Item	Especificação
Transmissão de luz	≥93% （425nm） ≥95% （450nm）
Peso Molecular	2000-3100 g/mol
Ponto de fusão	110-130oC
Densidade	1.05 g/cm3
Substâncias voláteis	≤0.5%
Ash	≤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.

Aplicações

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.