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PASTE PVC RESIN P450
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Paste PVC resin PB 1156
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SF750 2 compartment leakproof Clear Black Rectangular Disposable PP Food Box, Microwaveable Plastic lunch Containers
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Top quality and good price bent lunch box 1650ml disposable American plastic rectangular food box
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Natural Barium Sulfate TX-44AHB
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Rutile Titanium Dioxide R-5569
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Polypropylene K7726H
Q
does resin turn yellow over time
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When magenta and yellow pigments are mixed, the resulting color is typically a shade of red or orange, depending on the specific hues and proportions of the original pigments. This outcome is rooted in the subtractive color mixing theory, which is relevant in the context of pigments, inks, and other physical colorants. In subtractive color mixing, colors are created by absorbing (subtracting) different wavelengths of light and reflecting others. Magenta absorbs green light and reflects red and blue light, while yellow absorbs blue light and reflects red and green light. Combined, they predominantly reflect red light, as both absorb blue and green to varying extents. The precise shade of red or orange can vary, from a deep red to a bright orange, based on the saturation and specific tones of the original pigments used in the mixture.
Polyurethane polymer is made from the reaction of a polyol (a molecule with multiple hydroxyl functional groups) with a diisocyanate (a molecule with two isocyanate groups) in the presence of a catalyst. The diverse nature of these two components allows for the creation of polyurethanes with a wide range of physical properties, from flexible foams used in upholstery and mattresses to rigid foams for insulation, as well as elastomers used in wheels and automotive parts. The versatility of polyurethane also extends to coatings, adhesives, sealants, and fibers. The choice of polyol and diisocyanate, and the conditions under which they are reacted (such as temperature, catalysts, and additives), determine the characteristics of the final polyurethane product, making it a highly adaptable material for various industrial and consumer applications.
In discussing the polarity of inks, it's essential to understand that ink polarity primarily depends on the solvents used. Polar inks contain polar solvents such as water, glycols, or alcohols, which have a high dipole moment. These inks are typically used in applications requiring strong adhesion to surfaces like plastics, metals, and coated papers. Among commonly available inks, aqueous inks (water-based) are the most polar due to the high polarity of water molecules. These inks are popular for their environmental friendliness and low toxicity. However, they might not be suitable for all printing substrates due to limitations in drying speed and water sensitivity. For specific applications requiring high polarity, custom formulations using highly polar solvents can be developed.
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