1、POLY (VINYL ACETATE)

Polyvinyl acetate is also the raw material to make other polymers like : Polyvinyl alcohol - [HOCHCH 2]-: Polyvinyl acetate is partially or completely hydrolysed to give polyvinyl alcohol. This reversible saponification and esterification reaction was a strong hint for Hermann Staudinger in the formulation of his theory of macro molecules.

2、Polyvinyl Acetate (PVA)

Polyvinyl acetate (PVA) is a versatile thermoplastic polymer widely used as an adhesive in woodworking, paper production, textiles, and crafts. Known for its strong bonding capabilities and stability, PVA plays a vital role in industrial and commercial applications.

3、Poly (vinyl acetate) average Mw 100,000 GPC, beads 9003

PVAc-based matrix tablet flow due to intrinsic low density and high elasticity of polyvinyl acetate coating. It can also be used to prepare cellulose nanofibrils (CNF)-PVAc nanocomposite adhesives by simple mixing of CNFs suspension with PVAc and polyvinyl alcohol solution. The addition of CNFs enhances the mechanical properties of the ...

4、Safety Data Sheet: Polyvinyl acetate

Density and/or relative density Density Relative vapour density Bulk density Particle characteristics

5、Poly (vinyl acetate)

Polyvinyl acetate is a rubbery synthetic polymer. It is a component of glue and is used mainly as an adhesive for porous materials, particularly for wood, paper, and cloth. While polyvinyl acetate itself is not considered hazardous, it usually contains trace amounts of its precursor, vinyl acetate, which is toxic. (L1301, L1302)

Composition of POLYVINYL ACETATE

Note: not every material in the above list is available in the ASTAR and PSTAR databases.

Polyvinyl Acetate

Polyvinyl Acetate - Nature Open Data Verified Data colorless viscous liquid or transparent glass-like particles, odorless, tasteless, toughness and plasticity. Not with fat and water miscible, miscible with acetic acid, acetone, ethanol, ethyl acetate. Stable to light and heat, heating to more than 250 ° C will decompose into acetic acid.

poly (vinyl acetate) information and properties

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Vinyl Acetate

Vinyl acetate is a chemical compound with the formula C 4 H 6 O 2. It is a colorless liquid with a pungent odor and is an important building block in the production of various polymers, most notably polyvinyl acetate (PVA). The following table provides a comprehensive list of vinyl acetate properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP). Click on ...

Properties and Overview of PVAc (Polyvinyl Acetate)

A detailed overview of the polymer PVAc (Polyvinyl Acetate), including applications & 50+ atomic, electrical, mechanical, physical & thermal properties.

Polyvinyl acetate (PVAc) is a common water-soluble polymer widely used in coatings, adhesives, textile auxiliaries, paper treatment, and other fields. Its density, a critical physical property, significantly impacts product performance and cost control.

Chemical Structure and Density of Polyvinyl Acetate

Polyvinyl acetate is a high-molecular-weight compound synthesized via the polymerization of vinyl acetate monomers. Its molecular structure contains numerous polar groups, such as hydroxyl and carboxylic groups, which confer excellent water solubility and adhesive properties. Additionally, the presence of abundant ester bonds in the polymer chain makes PVAc prone to degradation under heat and light, affecting its stability and service life.

Density, defined as the ratio of mass to volume, is measured in units of grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³). For PVAc, density varies depending on factors like molecular weight, crystallinity, and temperature. Generally, its density ranges from 1.05 to 1.30 g/cm³, with specific values influenced by molecular weight and purity.

Factors Influencing the Density of Polyvinyl Acetate

1. Molecular Weight: Higher molecular weight increases PVAc density due to enhanced crosslinking and crystallinity.

2. Crystallinity: Greater crystallinity leads to higher density, as crystalline structures are more compact and resistant to solvent penetration.

3. Temperature: Rising temperatures reduce density by intensifying molecular motion, which also alters viscosity and flow properties.

4. Additives: Compounding agents like plasticizers, stabilizers, and antioxidants may modify PVAc density.

5. Production Process: Variations in synthesis conditions (e.g., temperature, pressure, catalysts) affect polymer structure and density.

Applications of Polyvinyl Acetate and the Role of Density

As a key polymer material, PVAc’s density directly influences its applications. In coatings, it acts as a thickening agent to adjust viscosity, rheology, coating performance, and drying rates. In adhesives, its density impacts adhesive strength and durability.

Higher-density PVAc exhibits superior mechanical strength and wear resistance, suitable for high-performance composites. Lower-density PVAc, meanwhile, facilitates processing and shaping for lightweight products like films and foams.

The density of polyvinyl acetate is a multifactorial parameter shaped by molecular weight, crystallinity, temperature, additives, and production methods. Understanding these factors enables optimized use of PVAc across diverse applications. Future advancements could refine manufacturing processes and formulations to enhance PVAc density and performance, fostering innovation in novel materials.