Polyvinyl acetate

Catalog NumberHG9003207

CAS Number9003-20-7

CategoryPolymer Surfactants

Synonyms

Acetic acid ethenyl ester, homopolymer

Appearance

Solid

Application

Use as film-forming agent.; Use as non-metallic material.; Use as adhesive. For example, used in wood, paper, glass, metal, porcelain, paint, textile, etc.; Preparation of polyvinyl alcohol by hydrolysis.

Active Content

95%

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Case Study

Polyvinyl Acetate as a Wood Adhesive Binder for Enhanced Water and Heat Resistance via Melamine-Based Resin Blending

Kaboorani, Alireza, et al. International Journal of Adhesion and Adhesives 31.7 (2011): 605-611.

Polyvinyl acetate (PVA) serves as a primary wood adhesive binder whose performance is enhanced through blending with melamine-formaldehyde (MF) and melamine-urea-formaldehyde (MUF) thermosetting resins.
Experimental Protocol: MF and MUF are added to PVA at weight ratios of 15%, 30%, 50%, 70%, and 100%. The blends are stirred for 30 minutes and applied to black spruce (Picea mariana) wood joints. Block shear tests are conducted according to ASTM D905-98 for dry conditions and ASTM 7247-07 for elevated temperature (100 °C). Wet tests involve 24-hour water immersion at 23 +/- 1 °C. Thermal stability is evaluated by thermogravimetric analysis from 25 °C to 700 °C at 10 °C/min under nitrogen flow.
Performance Evaluation: Dry shear strength increases by up to 12% with MF addition. Wet shear strength improves by 57-148% depending on the MF/MUF content. At elevated temperature, 15% MUF increases shear strength by 51%, while 70% MF achieves a 157% improvement. Adding 15% MF is identified as optimal considering cost, performance, and formaldehyde emission. FT-IR analysis confirms chemical bonding between PVA and MF through new peaks at 1550-1475 and 1320-1000 cm^-1.

Polyvinyl Acetate as a Soil Stabilizer for Mechanical Reinforcement and Moisture Retention of Expansive Soil

Bu, Fan, et al. Polymers 11.3 (2019): 506.

Polyvinyl acetate (PVAc) functions as an ecological soil stabilizer that improves the mechanical strength and moisture retention of expansive soil while supporting vegetation growth.
Experimental Protocol: PVAc emulsion is synthesized via free radical polymerization of vinyl acetate with ammonium persulfate initiator at 75 °C. Soil specimens are prepared at 17.8% moisture content and 1.7 g/cm³ dry density. Unconfined compressive strength (UCS) tests employ specimens of 8 cm height and 3.91 cm diameter at 2.4 mm/min strain rate. Direct shear tests use 2 cm x 6.18 cm specimens at 0.8 mm/min under 50-300 kPa normal loads. PVAc concentrations range from 0% to 30% (w/w).
Performance Evaluation: UCS increases to 233.3 kPa with 30% PVAc, representing a 2.06-fold enhancement over untreated soil. Cohesion rises from 260 kPa to 384.4 kPa (25-32% increase), while the internal friction angle remains stable at approximately 58.5 degrees +/- 3 degrees. Spraying 30% PVAc reduces soil evaporativity by 7.45% compared to water. The PVAc-treated soil promotes Bermuda grass seed germination and earlier emergence, confirming its eco-compatibility for field applications.

Polyvinyl Acetate as a Graphene-Reinforced Adhesive for Enhanced Mechanical and Bonding Performance

Khan, Umar, et al. ACS applied materials & interfaces 5.4 (2013): 1423-1428.

Polyvinyl acetate (PVAc) serves as a thermoplastic adhesive whose mechanical and bonding properties are significantly enhanced by the incorporation of solution-exfoliated graphene.
Experimental Protocol: Graphene is exfoliated from graphite powder in N-methylpyrrolidone by probe sonication for 6 hours at 24 kHz, followed by centrifugation at 1000 rpm for 45 minutes. PVAc-graphene composite films are prepared in tetrahydrofuran at graphene volume fractions of 0-0.85%. Films are dried at room temperature for 24 hours and then at 60 °C for 8 hours. Tensile testing is performed at a strain rate of 15 mm/min. Adhesive tests use wood substrates with 0.042 MPa applied pressure for 3 days at room temperature, followed by overnight drying at 60 °C.
Performance Evaluation: At 0.1 vol% graphene, the Young's modulus doubles from 0.75 GPa to 1.5 GPa, and tensile strength increases from 21 MPa to 38 MPa. Adhesive shear strength increases from 0.5 MPa to 2.2 MPa (4-fold increase), and tensile adhesive strength reaches 0.75 MPa. Adhesive toughness improves up to 7-fold. Commercial PVAc glue with 0.7 wt% graphene shows tensile adhesive strength increasing from 1.25 MPa to 1.75 MPa and tensile toughness increasing from 0.2 kJ/m² to 1.5 kJ/m².

• Synonyms: Acetic acid ethenyl ester, homopolymer
• Appearance: Solid
• Application: Use as film-forming agent.; Use as non-metallic material.; Use as adhesive. For example, used in wood, paper, glass, metal, porcelain, paint, textile, etc.; Preparation of polyvinyl alcohol by hydrolysis.
• Active Content: 95%