Of all the colorful plastics we use, plastic additives are the ones which provide properties to them. Let’s know the different types of plastic additives that are imbibed in our plastics for daily use.
Function: There are many ways manufacturers and brand owners can combat counterfeiting by employing one of several or indeed multilayer anti-counterfeiting technologies. Optical brighteners absorb ultraviolet and violet light then re-emit this energy at a higher wavelength, generally as a blue glow.
Function: Help prevent deterioration of plastic materials where part of the material might be susceptible to microbiological attack. Such attacks can cause staining, discoloration, and loss of aesthetics but more importantly, damage to electrical insulating properties, hygiene and overall loss of mechanical properties in the material.
Function: Help prevent “oxidation,” the polymer reacting with oxygen. Oxidation can cause loss of impact strength, elongation, surface cracks, and discoloration. Antioxidants help prevent thermal oxidation reactions when plastics are processed at high temperatures and light-assisted oxidation when plastics are exposed to UV light.
Function: Help to prevent the build-up of static electric charge. Plastics are generally insulating, and so can build up static charges on the surface which greatly disturb processing procedures and can be an issue for hygiene and aesthetics.
Function: Used to make plastics softer and more flexible and to enhance the degradability of the product.
Function: Form gases in the plastic to produce a foam material. The blowing agents form gases by breaking down on heating at a predetermined temperature and create a foam structure within the plastic’s polymer matrix.
Function: To prevent damage to plastics or the mold during processing. Applied to the material or directly to the machine to allow processing without loss.
Function: Natural substances used to improve strength and lower the cost of the material. Usually mineral-based, fillers/extenders increase the overall “bulk” of the plastic.
Function: To prevent ignition or spread of flame in plastic material. Plastics see substantial use in critical construction, electrical and transport applications which have to meet fire safety standards either by mandatory regulations or voluntary measures. Flame retardants are added to plastics to meet these requirements.
Function: Fragrances and deodorants for plastics are used in a variety of applications and are products for the home.
Function: To prevent decomposition of the polymer during processing. Processing usually results in temperatures well above 180 deg Celsius, which without the addition of heat stabilizers would result in the plastic material falling apart
Function: Enables plastic products to absorb shocks and resist impact without cracking. Particularly relevant for polyvinyl chloride (PVC), polystyrene (PS) and polypropylene (PP) materials.
Function: Used to improve the processability of plastics by increasing the flowability. Internal lubricants improve the melt flow of material by lowering the viscosity and heat dissipation (also see Processing Aids)
Function: Used to inhibit the reactions in plastics which cause undesirable chemical degradation from exposure to UV light.
Function: Tiny particles used to create a particular color.
Function: Used to make plastics softer and more flexible.
Function: Used to improve the processability of plastics by increasing the flowability. Internal lubricants improve the melt flow of material by lowering the viscosity and heat dissipation (Also see Internal Lubricants) High-polymeric processing aids also enhance the flowability of PVC compounds.
Function: Used to reinforce or improve tensile strength, flexural strength, and stiffness of the material. Often fiber-based.
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