1、A crosslinked waterborne poly(vinyl acetate) for greenhouse gas

Here, a newly developed crosslink was able to establish covalently adaptable networks directly in water, enabling the formation of a poly (vinyl acetate) (PVAc) composite.

2、Plasticizing and crosslinking effects of borate additives on the

As an environmentally friendly, low-cost and widely used polymer, poly (vinyl acetate) (PVAc) is worth modifying to achieve better properties. Here, we report on the influence of borate additives on the structure and properties of partially hydrolysed PVAc.

3、Corn starch blended polyvinyl alcohol adhesive chemically modified by

Crosslinked blends are formulated with PVAc binder, plasticizer, and preservatives forming a wood adhesive. Various characterization techniques were employed for measuring physical and thermo-mechanical properties. Crosslinking was proved with dynamic mechanical analysis.

4、Polyvinyl Acetate Crosslinking

Compared to pure polyvinyl acetate, these two emulsion types presented shorter curing time, improved water resistance, and higher bond strength; this is based on the crosslinking ability ...

Self

Compared to pure polyvinyl acetate, these two emulsion types presented shorter curing time, improved water resistance, and higher bond strength; this is based on the crosslinking ability ...

Crosslinkable poly (vinyl acetate) emulsions for wood adhesive

The purpose of this paper is to enhance the water resistance and the heat resistance of poly (vinyl acetate) (PVAc) emulsion adhesive, by providing the emulsion with controllable thermosetting capability.

Preparation and glass transition of crosslinked poly(vinyl acetate

Rod-like capsules consisting of a thin crosslinked poly (vinyl acetate) (PVAc) shell and a calcium carbonate core were synthesized by suspension polymerization technique.

Crosslinked poly (vinyl acetate) (PVAc) reinforced with cellulose

In this study, two unique methods were developed to improve the dispersion of cellulose nanocrystals (CNC) in a poly (vinyl acetate) (PVAc) matrix.

Study of Cross

The cross-linking of PVA has led to increase in molecular weight; the chains which initially were smaller have become larger due to cross-linking. The num- ber of repeating units in the chain has significantly increased due to cross-linking.

Plasticizing and crosslinking effects of borate additives on the

As an environmentally friendly, low-cost and widely used polymer, poly (vinyl acetate) (PVAc) is worth modifying to achieve better properties. Here, we report on the influence of borate additives on the structure and properties of partially hydrolysed PVAc.

In modern materials science, polyvinyl acetate (PVAc) is a critical synthetic polymer known for its unique physical and chemical properties, playing a pivotal role in various fields. Crosslinking of PVAc, a key modification technique, not only enhances mechanical performance, thermal stability, and dimensional stability but also holds broad application prospects in high-tech domains such as biomedicine, electronics, and aerospace.

Polyvinyl acetate is a polymer formed by the polymerization of vinyl acetate monomers, exhibiting excellent film-forming properties, transparency, and flexibility. due to insufficient chemical bonding between its molecular chains, it tends to degrade under high temperatures, limiting its use in harsher environments. crosslinking reactions that fix molecular chains together are an effective method to improve PVAc’s performance.

Crosslinking of PVAc can be achieved through multiple approaches, with chemical crosslinking agents and radiation crosslinking being the most common. Chemical crosslinking involves introducing crosslinking agents that react with active groups on polymer chains to form covalent bonds, thereby interlocking the chains. This method allows precise control over crosslink density and location, optimizing material properties. For instance, adjusting the type and concentration of crosslinking agents enables the production of PVAc materials with tailored mechanical and optical characteristics.

Radiation crosslinking, on the other hand, utilizes high-energy radiation (e.g., gamma rays or electron beams) to break chemical bonds in polymer chains, allowing them to rearrange and form new bonds. This approach eliminates the need for additional crosslinking agents, offering simplicity and environmental friendliness. radiation crosslinking significantly alters microstructures and may reduce mechanical strength. Thus, selecting appropriate radiation doses and processing conditions is crucial for effective crosslinking.

Beyond these conventional methods, emerging crosslinking technologies—such as nanotechnology-based crosslinking and bio-crosslinking—are under exploration. Nanoparticles, for example, can act as crosslinking agents by interacting with active groups on polymer chains, enabling rapid and efficient crosslinking. Bio-crosslinking leverages biological molecules (e.g., enzymes, polysaccharides) to achieve high-efficiency crosslinking under mild conditions.

The applications of crosslinked PVAc are extensive. In industry, crosslinked PVAc is used to manufacture high-performance adhesives, sealants, and coatings, widely employed in automotive, construction, and electronics sectors for superior adhesion, durability, and corrosion resistance. In healthcare, crosslinked PVAc serves in medical devices like artificial blood vessels and stents, offering excellent biocompatibility and mechanical strength for long-term in vivo stability.

In aerospace, crosslinked PVAc contributes to lightweight, high-strength composites with exceptional heat resistance, fatigue resistance, and impact resistance, maintaining performance in extreme environments. Additionally, crosslinked PVAc is integral to renewable energy devices, such as solar panels and fuel cells, enhancing energy conversion efficiency and lifespan.

crosslinking technology is vital to advancing PVAc’s capabilities. By selecting appropriate crosslinking methods, PVAc’s properties can be tailored for diverse applications. With ongoing technological progress, crosslinked PVAc is poised to unlock even broader application potential in future developments.