1、PVA polymer slime
The cross-linking between the polymer chains of polyvinyl alcohol occurs by adding borax, Na 2 B 4 O 7.10H 2 O (sodium tetraborate). PVA glue contains, amongst other things, the polymer polyvinyl alcohol (also called polyethenol).
2、Microrheological study of PVA/borax physical gels: Effect of chain
In the present work, we have applied DWS-based microrheology to study poly (vinyl alcohol) (PVA) + borax physically cross-linked gels which are typically “living” networks.
3、Poly(vinylalcohol)
Hydrogels based on cross-linking of PVA with borax, and able to incorporate organic solvents, have been used in the field of cultural heritage as tool for cleaning the surfaces.
4、Facile fabrication and characterization of high
Highlights The Borax-PVA hydrogels with excellent mechanical properties are prepared by simple physical mixing of polyvinyl alcohol and borax at room temperature. The Borax-PVA hydrogel is a three-dimensional structure composed of boric ester bonds as physical crosslinking points.
Producing slime (cross
When an aqueous solution of borax and PVA is mixed, a borate ion is sandwiched between the polymer chains, forming covalent bonds, and leading to a change in its properties to a viscous material.
The gelation of polyvinyl alcohol with borax: A novel class
It involves the preparation and observation of a borate cross-linked poly(vinyl alcohol) (PVA) gel which has such interesting properties that the popularity of this experiment among our students rivals that of the classic polymer demonstration, the Nylon Rope Trick (J).
Cross
The combination of polyvinyl alcohol (PVA) and carbon black (CB) powder was used to print the PVA/CB composite specimens. In order to do this study, a desktop SLS 3D printer has been built.
Polymers: Experiment 2
Objective: The objective of this experiment is to explore the change in physical properties of a polymer as a result of cross-linking. The result of adding more cross-linking agents to a polymer is considered and another model of cross-linking is viewed.
Chemistry Demonstration: PVA Slime
Multi-colored slime can be created using a solution of poly-vinyl alcohol (PVA) and borax. This experiment demonstrates the ability of borax to form chemical cross-links between molecules of the PVA polymer.
Crosslinking effect of borax additive on the thermal properties of
Borax is a well-known crosslinking additive that can be used with PVA. The crosslink density of the PVA-borax nanocomposite was controlled by changing its borate ion concentration.
In the vast realm of chemistry, chemical reactions captivate countless scientists and scholars with their unique charm. Polyvinyl acetate (PVA), a common synthetic material, is widely utilized across various fields due to its excellent properties. the reaction between PVA and borax remains relatively unexplored. This peculiar reaction not only reveals the distinctive nature of borax but also offers new insights to the chemical community. This article delves into the reaction process and significance of PVA and borax.
1. Introduction to PVA Polyvinyl acetate (PVA) is a high-molecular-compound polymerized from vinyl acetate monomers. Its molecular chains contain numerous hydroxyl groups, endowing PVA with good water solubility and film-forming properties. Additionally, PVA exhibits strong mechanical performance and chemical resistance, making it widely applicable in textiles, papermaking, building materials, and other industries.
2. Introduction to Borax Borax is an inorganic compound containing borate ions and sulfate ions. Due to its high solubility in water and effective flame-retardant properties, borax is commonly used as a fire retardant and water treatment agent. its antibacterial properties enable borax to function as a food additive.
3. Overview of the Reaction Between PVA and Borax The reaction between PVA and borax is a unique chemical process. Specifically, borate ions in borax form a complexation reaction with the hydroxyl groups on the PVA molecular chain. This reaction alters the properties of PVA and produces new compounds.
4. Analysis of the Reaction Process Between PVA and Borax 1. Preparation of Reactants Appropriate amounts of PVA and borax are required. PVA is typically prepared as a solution, while borax appears as a powder or granule. To ensure smooth progress, the two are mixed with an appropriate solvent, such as water.
2. Reaction Conditions The reaction between PVA and borax occurs under specific temperature and pH conditions. Generally, room temperature is maintained, and the pH is kept neutral or slightly alkaline. These conditions promote the reaction and minimize side reactions.
3. Reaction Rate The reaction between PVA and borax proceeds rapidly, with noticeable changes observable within minutes. As the reaction advances, the solution darkens due to the complexation of borate ions with the hydroxyl groups on the PVA chains.
4. Product Formation After sufficient reaction time, the complexation between PVA and borax completes, yielding new compounds. This process enriches the chemical structure of PVA and imparts novel properties to the material.
5. Significance of the Reaction Between PVA and Borax 1. Discovery of New Materials This reaction introduces a novel synthesis method for producing materials with specialized properties, holding broad application potential in industries such as manufacturing, agriculture, and medicine.
2. Study of Chemical Reactions Research on the PVA-borax reaction deepens our understanding of chemical reaction mechanisms. It aids in mastering reaction patterns and provides theoretical support for future scientific studies.
3. Environmental Protection and Resource Utilization The reaction also addresses resource recovery. By recycling waste PVA and borax, valuable substances can be generated, facilitating sustainable resource utilization.
The reaction between PVA and borax serves as a fascinating case study in chemistry. It uncovers the unique properties of borax and introduces innovative synthesis pathways. By exploring this reaction, we can expand the frontiers of chemical research and contribute to human advancement.
