Bio-SAH™ 322Liquid
Bio-SAH™
Hydrolysis and ultraviolet (UV) degradation are distinct processes, and the agents used to combat each phenomenon differ. However, I'll provide an overview of both anti-hydrolysis agents and UV absorbers separately.
Anti-hydrolysis agents are additives used to protect polymers from degradation caused by hydrolysis, a reaction in which water breaks down chemical bonds in the polymer structure. Common types of anti-hydrolysis agents include:
Phosphites and Phosphonites:
Examples include tris(2,4-di-tert-butylphenyl) phosphite (TNPP) and bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite (DPP).
HALS (Hindered Amine Light Stabilizers):
These stabilizers not only protect against UV degradation but also provide some level of hydrolysis resistance.
Polymeric Stabilizers:
Certain polymeric stabilizers are designed to protect against both hydrolysis and other forms of degradation.
UV absorbers are additives specifically designed to protect polymers from degradation caused by exposure to ultraviolet (UV) radiation. They absorb UV light and dissipate it as heat, preventing the UV radiation from causing damage to the polymer structure. Examples of UV absorbers include:
Benzophenones:
Such as benzophenone-1, benzophenone-3 (oxybenzone), and benzophenone-4.
Benzotriazoles:
Examples include 2-hydroxy-4-methoxybenzophenone (benzotriazole UV-9) and 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol (UV-328).
Triazines:
For example, 2,2'-methylenebis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol (Tinuvin 360).
It's worth noting that some UV absorbers, particularly benzotriazoles, can offer a degree of protection against hydrolysis as well. The choice of a particular additive or combination of additives depends on the specific requirements of the polymer, the intended application, and the environmental conditions it will face.
For comprehensive advice on selecting the right additives for a particular polymer and application, it's recommended to consult with polymer experts or material suppliers who can provide tailored recommendations based on the specific needs and conditions of your project.
Hydrolysis and ultraviolet (UV) degradation are distinct processes, and the agents used to combat each phenomenon differ. However, I'll provide an overview of both anti-hydrolysis agents and UV absorbers separately.
Anti-hydrolysis agents are additives used to protect polymers from degradation caused by hydrolysis, a reaction in which water breaks down chemical bonds in the polymer structure. Common types of anti-hydrolysis agents include:
Phosphites and Phosphonites:
Examples include tris(2,4-di-tert-butylphenyl) phosphite (TNPP) and bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite (DPP).
HALS (Hindered Amine Light Stabilizers):
These stabilizers not only protect against UV degradation but also provide some level of hydrolysis resistance.
Polymeric Stabilizers:
Certain polymeric stabilizers are designed to protect against both hydrolysis and other forms of degradation.
UV absorbers are additives specifically designed to protect polymers from degradation caused by exposure to ultraviolet (UV) radiation. They absorb UV light and dissipate it as heat, preventing the UV radiation from causing damage to the polymer structure. Examples of UV absorbers include:
Benzophenones:
Such as benzophenone-1, benzophenone-3 (oxybenzone), and benzophenone-4.
Benzotriazoles:
Examples include 2-hydroxy-4-methoxybenzophenone (benzotriazole UV-9) and 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol (UV-328).
Triazines:
For example, 2,2'-methylenebis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol (Tinuvin 360).
It's worth noting that some UV absorbers, particularly benzotriazoles, can offer a degree of protection against hydrolysis as well. The choice of a particular additive or combination of additives depends on the specific requirements of the polymer, the intended application, and the environmental conditions it will face.
For comprehensive advice on selecting the right additives for a particular polymer and application, it's recommended to consult with polymer experts or material suppliers who can provide tailored recommendations based on the specific needs and conditions of your project.
