BASF Tinuvin 770DF light stabilizer

                                                               

Product Introduction
Tinuvin 770DF is a hindered amine light stabilizer, which is more effective than UV light stabilizers and nickel-containing stabilizers, and is especially suitable for plastics that require good light stability Such as polypropylene, HDPE, EPDM, polystyrene, high impact polystyrene, ABS, SAN, ASA, and polyurethane. Tinuvin 770DF is also very effective for polyamides and polyacetals.

molecular weight : 481

chemical structure :

Physical properties

Appearance	White to yellowish crystalline particles
Softening temperature	81－85 ℃
Density	1.05 g/cm3(20℃ )

Dissolution amount(200℃ )	weight ratio%
acetone (acetone)	19
Benzene (benzene)	46
Chloroform (chloroform)	45
ethyl acetate (acetic acidethylester)	24
Hexane (hexane)	5
methanol (methanol)	38
Methyl chloroform (methylenechloride)	56
Water (water)	<0.01

Purpose
Contrary to UV light absorbers, the efficacy of Tinuvin 770DF is not affected by the thickness of the plastic, so it is especially suitable for applications such as webbing and film. Tinuvin 770DF also provides extremely high light stability for thick plastics.

How to use
Tinuvin 770DF can be added to the polymer in a general way. Tinuvin 770DF has good thermal stability and does not affect the color of the polymer because it does not absorb the visible spectrum. Tinuvin 770DF can be used together with UV absorbers, such as Tinuvin P, Tinuvin 327, Chimassorb 81, etc., to produce a synergistic effect and provide good light stability for plastics.
If you want to achieve the highest efficacy of Tinuvin 770DF, you need sufficient basic stability of the plastic to prevent damage to the plastic caused by thermal oxygen degradation. Sulfur-containing stabilizers such as thiodipropionate and sulfur-containing phenolic antioxidants will affect the effect of Tinuvin 770DF. If the finished product requires extremely high light stability, the influence of the pigment is also very important, it is recommended to conduct a small test first.

Safe Operations
Tinuvin 770DF is a free-flowing dust-free granule, which is operated according to the method of ordinary industrial products. Avoid contact with skin and eyes, eye protection and gloves are recommended. Refer to the safety data sheet for specific data.

�Good photostability.
If you want to achieve the highest efficacy of Tinuvin 770DF, you need sufficient basic stability of the plastic to prevent damage to the plastic caused by thermal oxygen degradation. Sulfur-containing stabilizers such as thiodipropionate and sulfur-containing phenolic antioxidants will affect the effect of Tinuvin 770DF. If the finished product requires extremely high light stability, the influence of the pigment is also very important, it is recommended to conduct a small test first.

Safe Operations
Tinuvin 770DF is a free-flowing dust-free granule, which is operated according to the method of ordinary industrial products. Avoid contact with skin and eyes, eye protection and gloves are recommended. Refer to the safety data sheet for specific data.