It is anticipated that all products made of plastic will function effectively even when they are constantly subjected to such environmental factors as sunlight, heat, humidity, and changing weather conditions. Regardless of whether these products are employed for making agricultural films, cars, construction, or outdoor furniture, they begin to lose their physical properties, including strength, color, and appearance, when subjected to UV rays. Therefore, the choice of the appropriate UV Stabilizer is an important step in the process of material selection.
Ultraviolet rays contain enough energy needed for breaking the molecules of many polymers. As a result, several effects become noticeable after some time of being in contact with sun rays, including:
The process of decomposition depends on the type of material used, quantity of exposure to sunlight, environmental factors, and application. Since outdoor products stay in constant contact with UV rays for a long period of time, protection against it is necessary from the very beginning of development.
UV protection is only one aspect that needs to be addressed. The long-term performance will depend on how various factors interact with each other through the lifecycle of the product.
Different polymers react in their own ways to UV radiation.
For instance:
The choice of additive package must always start with the properties of the basic resin.
Outdoor products will not experience similar environmental conditions.
Factors such as:
In the case of a product deployed in a desert environment, the stress will be entirely different from that experienced by the same product placed in tropical or coastal environments. Therefore, UV protection needs to be appropriate according to the expected service conditions.
Shape plays an essential role in determining the lifespan of plastic materials too.
Thin plastic films or lightweight molded items get exposed to more direct sunlight throughout the whole structure of the item, making them susceptible to UV breakdown. Big and heavy plastic components may prove more resistant just due to the slow process of damage within the material itself.
Design elements, such as thickness, color choice, surface, and orientation, play an important role in durability too.
No matter how effective the additive used is, it won't show the desired effect under improper processing.
The manufacturing should be done with:
Poor processing may deteriorate additives or result in uneven distribution, thus negatively impacting the efficiency of UV protection in the final product.
Not all stabilisation systems can be used equally effectively in all industries. Each industry requires various degrees of weather resistance.
Construction materials will stay outside unprotected by weather for years.
Examples include:
Long-lasting weather resistance and high strength during the entire period of application are needed in such products.
Plastics for agricultural use are applied in harsh conditions under regular exposure to sun, moisture, chemicals, and changes in temperature.
Typical uses include:
Durability is important as it allows avoiding frequent replacements and provides efficient operation of agricultural processes.
There are a lot of plastic parts in any vehicle that are exposed to the rays of the sun every day.
Such parts include:
Color stability and mechanical strength are important aspects that should be maintained for a long period of time.
Garden furniture, storage containers, playground equipment, sports equipment, and recreational equipment all need protection from constant exposure to weather conditions. Better protection against UV light improves the appearance and decreases the amount of cracking and fading.
Efficient outdoor properties usually do not depend on just one additive. Producers use several additives that improve the properties of plastic at once.
For instance, a good formulation can consist of:
All these additives improve the weatherability, color stability, processability, and long-term mechanical properties of plastics.
It is important to pay attention to the compatibility of additives to make sure that one additive does not decrease the efficiency of another one in processing or outdoors.
Laboratory testing offers useful information on how plastics will fare in the long run.
Some common tests performed include:
They assist manufacturers in predicting their product lifespan, improving their formulations, and eliminating possibilities of failures in the field.
Real-world outdoor testing is equally valuable, particularly for products designed for demanding environmental conditions.
Even though reducing the cost of formulation seems to be tempting enough, using cheaper additives would lead to reduced product life.
Outdoor plastics that last longer would bring more value by:
Using longer-lasting formulations would be beneficial for manufacturers, distributors, and consumers in the end.
In addition to exploring ways to improve overall material performance, businesses can investigate possibilities offered by Additive Masterbatches, Colour Masterbatches, Black Masterbatches, White Masterbatches, Engineering Plastic Compounds, and Specialty Compounds to optimize products in order to withstand harsh outdoor conditions.
The development of strong outdoor plastics involves taking into account various aspects, including polymer choice, outdoor environment exposure, product design, manufacturing quality, and formulation approach. Choosing a proper UV Stabilizer is one of the steps that need to be taken for the development of products with the required strength, aesthetics, and performance characteristics during years of their use in outdoor conditions.
If you are looking for proven additive products, Kandui can offer a range of masterbatch and specialty compounds that will suit your needs in construction, agriculture, automotive, and outdoor markets.
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