Overall Introduction of Polymer Antioxidant What Is Antioxidant? (Definition of Antioxidant) An antioxidant is a chemical compound that prevents oxygen from reacting with other compounds that are susceptible to oxidation. Polymer antioxidant, is a class of heat stabilizers, can be added to improve the shelf life of the product or to improve its high-temperature stability. While adding a…
DetailsOverall Introduction of Fluorescent Brightener What Is Fluorescent Brightener? Optical brightener sometimes called optical brightening agents (OBAs), fluorescent brightening agents (FBAs) or fluorescent whitening agents (FWA) are colorless to weakly colored organic compounds. When present on a substrate, absorb primarily invisible ultraviolet light in the 300-400 nanometer (nm) range and re-emit in the visible violet-to-blue fluorescent light to yield a brighter, fresher…
Details[no_toc] Testing of Whitening Agent Test Items Appearance, volatile content, max melting point, content are typical testing items in Certification Of Analysis (COA) for each mass production batch. How to test optical brighteners in plastics? 1.Immigration and bleeding it is better to observe immigration and bleeding of optical brightener in UV lamp, yellow and green spots could be scattered on surface of…
DetailsHow Does Fluorescent Whitening Agent Work? Optical brighteners or fluorescent whitening agents (FWA) are colorless to weakly colored organic compounds that, in solution or applied to a substrate, absorb ultraviolet light and re-emit most of the absorbed energy as blue fluorescent light between 400 and 500 nm. Materials that evenly reflect most of the light at all wavelengths…
DetailsHow to Choose Plastic Whitening Agent? 1) How to Choose Optical Brightener for Polyolefins 2) How to Choose Optical Brightener for PVC It is worth noting that same optical brightener gain different whitening effect in rigid PVC (RPVC) and flexible PVC (FPVC). Bisbenzoxazole or phenyl coumarin group are often used in PVC. When PVC powder, heat stabilizer, fluorescent brightener agent dry mixed together,…
DetailsOptical Brightener Posts Center Overall Introduction Of Optical Brightener, which contain Optical Brightener Definition & Classification How Does Optical Brightener Work? How to Choose Optical Brightener? How to Choose Plastic Whitening Agent? Testing of Optical Brightener To Be Updated Regularly
DetailsPolymer Additives Technical Blog Polymer Antioxidant Overall Introduction of Antioxidant, which contains Antioxidant Definition & Classification How Does Antioxidant & Polymer Stabilizer Work? How to Choose Antioxidant For Plastics? Polymer Antioxidant Market & Trend Testing Of Antioxidant A Comparison of BASF and China Polymer Antioxidant UV Absorber Overall Introduction of UV Absorber, which contains UV Absorber Definition & Classification How Does UV Absorber & Polymer Stabilizer Work? UV Absorber Market And Trend How to Choose UV Absorber for Plastics? Testing of UV Absorber Comparison of BASF and China UV Absorber Light Stabilizer Overall Introduction of Light Stabilizer, which contains Light Stabilizer Definition How…
DetailsChina Organic Pigment Overview[no_toc] 2/3 World Organic Pigment Produced in China 160 – 170 Manufacturers 4000 Dealer and Distributors Global And China Economic Introduction Global growth rate slowing to 2.4 percent in 2015 from 2.6 percent in 2014. It is estimated that global growth is projected to edge up, and is expected to reach 2.9 percent in 2016-17 and 3.1 percent in…
DetailsOverall Introduction of Organic Pigment What is pigment and dyes? 1.Pigment Definition 1.1 International Definition Pigments are colored, black, white or fluorescent particulate organic or inorganic solids which usually are insoluble in, and essentially physically and chemically unaffected by, the vehicle or substrate in which they are incorporated. They alter appearance by selective absorption and by scattering of light. Pigments…
DetailsPigment Definition & Classification What Are Pigment And Dye? 1.Pigment Definition 1.1 International Definition Pigments are colored, black, white or fluorescent particulate organic or inorganic solids which usually are insoluble in, and essentially physically and chemically unaffected by, the vehicle or substrate in which they are incorporated. They alter appearance by selective absorption and/or by scattering of…
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