Introduction to Flexible PVC
In this article the team of Chemical Compounds He has taken some time to explain those basic questions regarding PVC material or specifically Flexible PVC. We hope this is helpful, and if you have any questions, please don't hesitate to contact us. Remember, we are the manufacturers of our PVC compound.
1. What is flexible PVC?
General Definition of PVC
To answer this question, it is first important to define what is... PVC.
PVC, or Polyvinyl Chloride, is a thermoplastic resin capable of taking on various shapes and properties according to the needs of a specific processor or end user. This resin or plastic differs from others available on the market, such as polyethylene (PE), polypropylene (PP), polycarbonate (PC), and polyurethane (PU), and is defined as a thermoplastic resin because, when heat is applied, it melts or becomes a moldable mass that can be shaped as desired. Additionally, it is called a polymer because it consists of multiple sections, or mers, of the C2H3Cl/H2C=CHCl molecule interconnected with each other.
Let's imagine for a moment the particle of PVC like several macromolecules joined together that together have the appearance of an irregular potato. Just like a cooking potato, the PVC particle It is covered by a layer or membrane and contains a porous structure inside. This characteristic of PVC This is what allows, with the help of high temperatures, the particle to open up resembling a "popcorn" to allow the adsorption of chemical additives that will help give certain properties to this plastic.
Flexible PVC
The Flexible PVC It is a fairly easy-to-process material and has a wide range of hardness levels depending on the customer's requirements. This hardness is measured on a Shore A scale, which ranges from 0 to 100, but we usually find grades from 35 Shore A to 95 Shore A.
It is very important that when a client seeks flexible PVC, they understand the significance of the required hardness, as the success of the product in their market will depend on it.
- A Flexible PVC A material with a hardness of 45 Shore A will be extremely malleable, very easy to process without risk of thermal degradation (in the initial process, of course), and will exhibit high elongation before breaking. The problem is that it will lack good structural memory and will be very sensitive to high temperatures, leading to easy and irreversible deformation (it's a thermoplastic, not a thermoset). Consider the circumstances under which these heat conditions might occur; perhaps in a container or inside a transport truck. Proper cooling after manufacturing, before winding or bending, is also a factor to consider; it is recommended to let the material rest. Flexible PVC 24 to 48 hours minimum at room temperature.
- A flexible PVC with a hardness of 85 Shore A is a completely different story. It may present greater challenges in processing, melting, and achieving a smooth, lump-free finish, and it does not offer high elongation. The positive aspect is that this type of flexible PVC has greater resistance to deformation, though not comparable to rubber or nitrile, and it better withstands high temperatures up to a certain limit.
Another important factor that the producer must consider is the shape or structure of the material being produced. For example, the perceived hardness will differ when manufacturing a thick hose compared to a thin one, even if the same flexible PVC is used. Additionally, to accurately gauge hardness, as mentioned earlier, the part should be allowed to cool after production.
2.- Uses of PVC
When a manufacturer or contractor needs to produce a specific part and doesn't know which plastic to use, it's important to understand the properties of the available options, as the plastics industry is full of possibilities. Since this article focuses solely on Flexible PVC, Here we list only a few uses of PVC You can find more information about this in our products section:
- Window seal
- Industrial hose
- Vinyl baseboards
- IV tubing
- Droppers for solutions
- Oxygen masks and oxygen sets
- Food film
- Toys
- Cable sheathing
- Fridge PVC Door Seals
- Mats
- Sandals
3. Advantages of Flexible PVC
We would also like our clients to understand some of the advantages that flexible PVC offers compared to other plastics, so they can make an informed decision and learn more about the applications of PVC.
- Affordable cost: This is a strong reason to choose flexible PVC. If you select an opaque, mineral-filled flexible PVC, you will obtain a more opaque material that is also more cost-effective than purchasing a clear grade.
- Versatility: This plastic can be adapted to different appearances, hardness levels, and properties for a wide range of industries.
- Halogen compound: he Flexible PVC It contains chlorine in its structure, which is why it's a preferred plastic in the electrical industry because it extinguishes flames in case of fire. The same applies to all types of... PVC and for this reason it is also of great importance in the construction industry.
- Adaptability: like the Flexible PVC It is formulated after the resin polymerization, and can be adapted to the customer's process as a custom-made product.
- Low toxicity: Recent developments in flexible PVC include additives that are safe for human health.
- Low Odor: although it is heard in the market that the Flexible PVC It does have an odor, that's not how it is; it's the additives that give it that characteristic. We do have low-odor versions available.
We hope this article on flexible PVC and PVC applications has been helpful and that you will share your comments with us. You can also visit our website or contact our expert engineers to determine which PVC compound best suits your needs.
Sincerely. Chemical Compounds