1、 Core functions
Improve weather resistance and aging resistance: titanium dioxide (TiO2) can effectively delay the aging process of pipes (such as PVC and PE pipes) in the outdoor environment, prevent yellowing, embrittlement and surface chalking, and significantly extend the service life by absorbing ultraviolet light and inhibiting photochemical reaction. Rutile titanium dioxide has stronger UV shielding ability due to coating treatment (such as zirconia/alumina).
Enhance coverage and whiteness: The high refractive index property allows titanium dioxide to scatter visible light, covering the base color of the pipe substrate (such as the light yellow base color of PVC), giving the product high whiteness, uniform color, and bright appearance. The blue phase base tone model can optimize visual whiteness.
Improving processing performance and stability: Low oil absorption (≤ 23g/100g) and organic surface treatment techniques (such as adding light TR-36) enhance the dispersibility of titanium dioxide in plastic melts, reduce production energy consumption, and avoid defects such as pores and flow marks on the surface of pipes.
2、 Special application requirements
Weather resistance adaptation: Outdoor pipes must use rutile titanium dioxide (such as SR-236, R-838), whose coating can resist resin degradation caused by UV catalysis; Sharp titanium type is prone to accelerate pipe aging due to poor weather resistance.
Color tone and heavy metal control: Blue phase titanium dioxide (such as R-248) can counteract the inherent yellow tone of PVC pipes and improve their appearance purity; Attention should be paid to the heavy metal content (such as chromium and lead) of titanium dioxide in water related pipes to avoid polluting water quality.
Additive compatibility: PVC pipes containing lead salt stabilizers should be selected with appropriate models to prevent adverse reactions between titanium dioxide and stabilizers.
4、 Usage suggestions
Addition amount: usually 3% -5% of the material weight, adjusted according to weather resistance requirements;
Operation protection: Moisture proof storage is required, and protective gloves and goggles should be worn during operation.
Note: The heavy metal migration of titanium dioxide in water related pipes should be strictly verified to ensure compliance with hygiene standards.
Post time: Aug-14-2025
