Polyvinyl alcohol (PVA) 100-70 is a specific grade of PVA that
possesses
several advantages in various applications. Here are some of the advantages of PVA 100-70:
1. Water Solubility: PVA 100-70 is highly water-soluble, making
it
convenient for various formulations where dissolution in water is required. It readily
disperses in water
to form clear solutions.
2. Film Formation: PVA 100-70 can be used to create thin films with excellent mechanical
strength and
flexibility. It forms transparent, smooth, and uniform films, making it suitable for
applications such as
coatings and packaging.
3. Barrier Properties: PVA 100-70 exhibits good barrier properties against gases, including
oxygen and
aromas. This makes it useful in packaging applications, particularly for food and
pharmaceutical products,
where it helps to maintain product freshness and extend shelf life.
4. Adhesive Properties: PVA 100-70 can be utilized as an adhesive or binder in various
industries. It
forms strong bonds with a wide range of substrates, including paper, wood, fabric, and
plastics. Its
adhesive properties make it useful in applications like paper laminating, textile sizing,
and bookbinding.
5. Biodegradability: PVA 100-70 is biodegradable under certain conditions. This property
makes it an
environmentally friendly choice compared to synthetic polymers that are non-biodegradable.
6. Compatibility: PVA 100-70 is compatible with many other polymers, resins, and additives,
allowing for
easy blending and formulation in combination with other materials. This versatility enhances
its
applications in various industries.
7. Low Toxicity: PVA 100-70 is considered non-toxic and safe for use in consumer products. It
is widely
used in applications involving direct contact with the human body, such as in
pharmaceuticals, personal
care products, and medical devices.
8. Stability: PVA 100-70 exhibits good thermal stability, maintaining its properties over a
wide
temperature range. It can also withstand exposure to UV light without significant
degradation, making it
suitable for outdoor applications.
