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In modern life, plastic is everywhere, from daily food packaging, to the shell of electronic products, to various parts of car interior, it has brought great convenience to our lives. However, plastic sometimes emits unpleasant odors, which not only affects the user experience, but may also cause practical troubles in some scenarios. Plastic deodorant is the key to solving this problem.

There are many sources of plastic odor. First, the monomers of synthetic plastics are a common source of odor. Take the monomer vinyl chloride of polyvinyl chloride (PVC) as an example. It has a unique odor itself. If the polymerization process is not properly controlled, the residual monomer will make the plastic have an odor. Some plastics made of natural polymers, such as cellulose-based plastics, may also inherit odors from their plant raw materials. Second, various additives added to improve the performance of plastics, such as plasticizers, flame retardants, antioxidants and colorants, may also become odor makers. Third, during long-term use, plastics are degraded by factors such as light, heat, and oxygen, and the polymer chains break, releasing volatile unpleasant substances. For example, polyethylene (PE) and polypropylene (PP) plastics emit a pungent odor when they are oxidatively degraded.

So, how do plastic deodorants work? There are three main ways. The first is the adsorption principle, and the typical representative is the deodorant containing activated carbon. Activated carbon has a huge specific surface area and rich micropores. It can adsorb odor molecules on the surface through van der Waals force, reducing the concentration of odorous substances inside the plastic and in the surrounding air. In food plastic packaging, activated carbon deodorants can effectively absorb the odor emitted by food and prevent cross-flavor. The second is the chemical reaction mechanism. Some deodorants contain compounds that can react with odorous substances.

Plastic deodorants are widely used in many fields. In the packaging industry, whether it is food packaging that needs to ensure that it does not affect the flavor of food, or drug packaging that needs to maintain an odorless state to avoid affecting the quality of drugs and consumer perception, or cosmetic packaging that needs to keep the product aroma undisturbed, plastic deodorants are crucial. In the automotive industry, deodorants can be used to remove the “new car smell” produced by the mixture of plastic parts, adhesives and fabrics in the interior of new cars, and to reduce the odor caused by the thermal degradation of plastic parts in the engine compartment. The electronics industry is also inseparable from it. The plastic shells and insulating parts of devices such as smartphones and laptops can prevent odors from interfering with the user experience, and can also prevent odor substances from corroding or affecting the functions of electronic components.

In short, although plastic deodorants seem inconspicuous, they play an indispensable role in improving the quality of plastic products and optimizing the user experience. As technology continues to advance, it will help plastics better serve our lives.

As a Component in Deodorant Formulations:
Fatty acid powder can be an integral part of PVC deodorant formulations. Some fatty acids, such as lauric acid or stearic acid, possess certain properties that can contribute to odor control. These fatty acids can interact with odor – causing compounds through processes like acid – base reactions or physical adsorption. For example, if the odor in PVC is due to the presence of basic degradation products, the acidic nature of fatty acids can neutralize them. When using a deodorant containing fatty acid powder, it’s essential to ensure proper mixing during the compounding process. Just like other deodorant ingredients, fatty acid powder should be added at the start of the compounding stage. This allows it to blend well with the PVC resin and other additives, enabling it to evenly distribute throughout the matrix and effectively target odor – causing substances.
As an Auxiliary Additive:
Fatty acid powder can also be used as an auxiliary additive to enhance the performance of traditional PVC deodorants. It can improve the dispersion of other deodorant components, such as activated carbon or zeolites, in the PVC matrix. When added in appropriate amounts, fatty acid powder reduces the surface tension between the deodorant particles and the PVC resin, promoting better mixing. To use fatty acid powder in this way, it should be added in small, carefully measured quantities. A common starting point could be around 0.1% – 0.5% by weight of the total PVC formulation. Manufacturers need to conduct trial runs with different concentrations to determine the optimal amount that maximizes the dispersion of the main deodorant ingredients without negatively affecting the physical properties of the PVC product.
Considerations for Fatty Acid Powder Usage:
The type of fatty acid powder selected matters. Different fatty acids have varying chemical structures and properties, which can impact their effectiveness in odor control and their compatibility with the PVC matrix. For instance, longer – chain fatty acids may have better solubility in certain PVC formulations but may also require more energy to disperse evenly. Additionally, the quality of the fatty acid powder is crucial. Impurities in the powder can potentially react with other components in the PVC system, leading to unwanted side – effects such as discoloration or a decrease in the overall performance of the deodorant. It’s recommended to source high – purity fatty acid powder from reliable suppliers.

As people pay more and more attention to skin care, the cosmetics industry continues to pursue higher quality and more efficient ingredients. As a natural and versatile raw material, fatty acid powder has gradually emerged in the cosmetics field and plays an important role.

1.Emulsification
Among many cosmetics, products such as lotions and creams require the oil phase and the water phase to be evenly mixed to form a stable emulsified system. Fatty acid powder has excellent emulsification properties and can reduce the surface tension of the oil-water interface so that the two are closely combined. For example, in a moisturizing cream, fatty acid powder can help oil and water disperse evenly, making the cream texture more delicate, easy to spread when applied, and improving the feel of use. Moreover, a stable emulsification system helps to extend the shelf life of the product and ensure that the cream will not separate oil and water during storage.
2.Moisturizing
Retaining moisture in the skin is essential for maintaining skin health. The long-chain fatty acids in fatty acid powder can form a thin protective film on the surface of the skin, which can prevent the loss of moisture inside the skin and play a moisturizing role. At the same time, it can also increase the softness and smoothness of the skin, making the skin feel more delicate. For example, in some skin care products suitable for dry skin, fatty acid powder can work synergistically with other moisturizing ingredients to enhance the moisturizing effect and keep the skin moisturized for a long time.
3.Regulating the pH value of the skin
The surface of the skin has a natural weak acidic environment, and the pH value is usually between 4.5 and 6.5. This environment helps to maintain the barrier function and microbial balance of the skin. Fatty acid powder has a certain acid-base regulating ability, which can help cosmetics adjust to a range close to the pH value of the skin and reduce irritation to the skin. For example, adding fatty acid powder to cleansing products can enable the product to better protect the acid-base balance of the skin while cleaning the skin, and avoid damage to the skin barrier caused by excessive cleaning.