1、聚乙酸乙烯酯_百度百科

聚乙酸乙烯酯（Polyvinyl acetate，简称PVAc）的研究始于20世纪初。 1912年，德国化学家Fritz Klatte首次通过乙酸乙烯酯的聚合合成了该物质，并获得了相关专利。 在1920年代，随着聚合技术的进步，聚乙酸乙烯酯开始工业化生产，最初用于制造安全玻璃的中间层。

2、聚醋酸乙烯酯_化工百科

中文名:聚醋酸乙烯酯,英文名:Poly (vinyl acetate),CAS:9003-20-7,化学式:C4H6O2,分子量:86.08924,密度:1.18 g/mL at 25 °C,熔点:60°C,沸点:70-150 °C,闪点:>100℃,蒸汽压:86.3mmHg at 25°C,折射率:n20/D 1.467,MSDS.

3、Improvement in hardwood bonding strength of polyvinyl acetate emulsion

With this emulsion, a hardwood glue with 47.80 percent of solids, 21.760 cP viscosity, and an average grab strength of 17.63 MPa was formulated, corresponding to an increase of 5.86 MPa compared to a similar glue with monomodal particle size distribution.

4、Polyvinyl Acetate (PVA)

The following table provides a comprehensive list of polyvinyl acetate (PVA) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).

5、Properties and Overview of PVAc (Polyvinyl Acetate)

PVAc (Polyvinyl Acetate) is a versatile thermoplastic polymer widely used for its strong adhesive properties, flexibility, and film-forming abilities. Known as a key component in household glues and industrial adhesives, PVAc is a staple material in packaging, construction, woodworking, and textiles.

Polyvinyl Acetate (PVAc)

Polyvinyl Acetate, or PVAc, is an invaluable synthetic polymer with a multitude of applications. Its unique chemical structure gives rise to its desirable properties, including excellent adhesion, resistance to UV light, and non-toxicity.

Improved Adhesive Strength and Toughness of Polyvinyl Acetate Glue on

We observe a 50% increase in stiffness and a 100% increase in tensile strength on addition of 0.1 vol % graphene compared to the pristine polymer. As PVAc is commonly used commercially as a glue, we have tested such composites as adhesives.

Polyvinyl acetate: Properties, Production process and Uses

The adhesion performance of VAE emulsion to many surfaces is stronger than that of vinyl acetate and alkyl maleate, alkyl fumarate and alkyl acrylate copolymers.

Polyvinyl Acetate Adhesive

Polyvinyl acetate adhesive is defined as a widely used resin in water-dispersion form, commonly known as “white glue,” which provides strong initial bonds and is suitable for bonding paper, plastics, metal foil, leather, and cloth, with applications in packaging and construction.

Preparation and Properties of Poly (vinyl acetate) Adhesive

The modified structure of poly (vinyl acetate) was examined using infrared spectroscopy (IR), and the effect of the vinyl versatate content on the particle size, viscosity, mechanical properties, and T-peel strength of the modified poly (vinyl acetate) adhesive is discussed.

Polyvinyl Acetate Strength

Polyvinyl acetate (PVAc), as an essential synthetic material, plays an indispensable role in industry and daily life. With its unique physical and chemical properties, it is widely used in textiles, papermaking, packaging, construction, automotive, and other fields. This article delves into the strength characteristics of polyvinyl acetate, as well as its significance and challenges in practical applications.

Polyvinyl acetate is a thermoplastic polymer containing numerous ester bonds in its molecular structure, which allows it to soften and flow when heated. This characteristic enables high processability, enabling shaping through extrusion, injection molding, blow molding, and other methods. its high fluidity also makes it prone to deformation under external forces, thereby affecting its strength.

The strength properties of PVAc are closely related to its molecular weight, molecular weight distribution, and the use of additives. Generally, higher molecular weight corresponds to longer molecular chains and improved material strength. By controlling reaction conditions during polymerization, such as temperature, pressure, and the type/amount of catalysts, the molecular weight and distribution can be effectively regulated, subsequently influencing mechanical performance. Additionally, incorporating appropriate plasticizers, stabilizers, antioxidants, and other additives can further enhance the strength and durability of PVAc.

In practical applications, the strength characteristics of PVAc are critical to product design and manufacturing. For example, sufficient strength is required for lightweight products like films and foam boards to withstand transportation and usage pressures, while structural components such as pipes and panels demand higher strength to bear external loads. understanding the strength properties of PVAc and selecting suitable formulations and production processes based on actual needs are key to ensuring product quality.

Beyond engineering applications, PVAc holds a unique position in the medical field. Due to its excellent biocompatibility and biodegradability, it is widely used in manufacturing artificial skin, scaffolds, and other medical devices. These products must not only possess high strength but also ensure minimal adverse effects on human bodies due to their biological compatibility.

With advancements in technology and growing environmental awareness, the application scope of PVAc continues to expand. In the future, new synthetic materials and production technologies may further enhance PVAc’s performance. For instance, nanotechnology-enabled PVAc composites could achieve breakthroughs in strength and toughness, providing more reliable material options for aerospace, marine engineering, and other fields.

as a material with broad application prospects, the study and development of PVAc’s strength properties are highly significant. Through in-depth research on its molecular structure, processing techniques, and additives, its role across various fields can be better leveraged, advancing materials science. Meanwhile, addressing escalating environmental challenges and market demands, improving PVAc’s strength and sustainability will remain a critical focus of future research.