Sundy PVA is a versatile polymer that possesses several characteristics making
it ideal for a wide range of industrial and commercial applications:
High Water Solubility: Enables easy application in liquid formulations and makes
it easy to use for packaging and coatings.
Good Biodegradability: Sundy PVA breaks down naturally over time, making it a
more environmentally friendly option compared to other synthetic polymers.
Non-toxic: Safe for use in food, pharmaceuticals, and personal care products.
Excellent Film-Forming Ability: Sundy PVA forms durable, transparent films that
are flexible, making it useful in packaging and coatings.
Adhesive Properties: Offers strong bonding to various substrates, such as paper,
wood, and textiles.
Resistance to Organic Solvents: While it is soluble in water, Sundy PVA shows
resistance to many oils, fats, and organic solvents, enhancing its functionality
in industrial applications.
Thickening Agent: It acts as an effective thickening agent in various
formulations.
Sundy PVA has excellent solubility, film-forming ability, and mechanical strength. Key
performance characteristics include:
Water Solubility: Sundy PVA is highly soluble in water, making it an ideal choice
for
applications requiring water-soluble components.
Film-Forming Properties: The polymer can form strong, flexible, and transparent
films,
making it suitable for coatings and packaging applications.
Biodegradability: PVA is biodegradable, which makes it environmentally friendly.
This
characteristic is especially important in the growing demand for sustainable and
eco-friendly products.
Non-toxicity: Sundy PVA is non-toxic and safe for use in food and pharmaceutical
applications, making it an excellent choice for these industries.
High Adhesion: It exhibits excellent adhesion to a wide variety of materials,
including
paper, textiles, and plastics.
Viscosity Control: Sundy PVA offers precise viscosity control, making it
versatile for a
range of formulations.
Chemical Resistance: It has a degree of resistance to oils, fats, and chemicals,
which
makes it effective in industrial applications where chemical exposure is a concern.
Thermal Stability: Sundy PVA has moderate thermal stability and can withstand a
range of
temperatures typically used in manufacturing processes, but it can degrade at high
temperatures (over 230°C).
Sundy PVA is available in several different grades, each designed for specific
applications,
which vary in terms of their degree of hydrolysis (the extent to which the polymer has
been
converted into a water-soluble form) and molecular weight. Here are some of the common
grades:
Sundy PVA 1788: This is one of the most widely used grades of PVA. It has a high
degree
of
hydrolysis (88%) and a moderate molecular weight, which provides strong film-forming
capabilities and is typically used for paper coating, adhesives, and textile sizing.
Sundy PVA 2498: This grade has a lower degree of hydrolysis and a higher
molecular
weight,
making it more suitable for applications that require stronger binding and adhesion
properties. It is commonly used in adhesives, coatings, and encapsulation.
Sundy PVA 088: This grade has a low degree of hydrolysis (around 88%) and is
highly
soluble
in water. It is typically used for applications that require excellent solubility, such
as
in packaging and detergents.
Sundy PVA 101: This grade is known for its high molecular weight and is used in
more
demanding applications requiring excellent mechanical strength, such as in the
production of
films and coatings.
Sundy PVA finds use in numerous industries due to its wide-ranging properties,
including:
Textile Industry:
Sizing Agent: Sundy PVA is widely used as a sizing agent in textile processing,
where it
is applied to yarns to improve their strength, smoothness, and durability before weaving
or knitting.
Finishing Agent: Used to improve the finishing and texture of fabrics.
Paper and Packaging:
Paper Coatings: PVA is used in paper coatings to enhance the strength, moisture
resistance, and printability of paper products.
Water-Soluble Films: Sundy PVA is used to create biodegradable and water-soluble
films
for packaging applications, especially for single-use products such as detergent pods or
water-soluble bags.
Adhesive for Paper Products: It is widely used in the production of adhesives for
paper-based products such as labels, packaging, and envelopes.
Adhesives and Binders:
Wood Adhesives: Used in the production of wood-based products, including plywood
and
particle board.
Textile and Paper Adhesives: Sundy PVA is employed as a binder in adhesives for
textiles, paper, and other substrates, providing strong bonding power.
Cosmetics and Personal Care:
Facial Masks and Creams: PVA’s film-forming ability makes it suitable for use in
personal care products like facial masks, moisturizers, and hair care products.
Hair Gel and Styling Products: Used as a binder and stabilizer in gel
formulations.
Construction:
Cement and Concrete Additives: Sundy PVA is used as a modifier in cement, mortar,
and
concrete, improving the bonding, flexibility, and water retention properties of these
materials.
Tile Adhesives: It is commonly used in tile adhesives to enhance the flexibility
and
workability of the adhesive.
Agriculture:
Seed Coating: PVA is used in the agriculture industry for seed coating
applications,
where it helps protect seeds during planting and promotes better germination.
Biomedical and Pharmaceutical:
Drug Delivery Systems: PVA is used in controlled drug release systems due to its
solubility and non-toxic nature.
Wound Dressings: It is used in some biomedical applications such as wound
dressings
because of its ability to form a protective and moisture-retentive layer.
