1、How to Improve Water Resistance in Polyvinyl Acetate Products?
Recent technological advancements have opened new avenues for improving water resistance in PVA products. These include chemical modifications, physical blending with hydrophobic polymers, and the incorporation of nanoparticles.
2、Waterproofing with Polyvinyl Acetate Emulsion Adhesive
In this study, modified poly (vinyl acetate) latexes with different proportions of vinyl versatate as the modifier were prepared by soap-free emulsion polymerization.
3、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。
4、Journal of Applied Polymer Science
In this study, the hot water resistance of PVAc adhesive is improved by introducing lignin with a complex structure to construct multiple cross-linked networks with a high cross-link. However, due to the large steric hindrance, the reactivity of lignin hydroxyl groups is low.
Development of poly (vinyl acetate) adhesive with hot water
In this study, the hot water resistance of PVAc adhesive is improved by introducing lignin with a complex structure to construct multiple cross-linked networks with a high cross-link. However, due to the large steric hindrance, the reactivity of lignin hydroxyl groups is low.
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.
Adhesive Manufacturer
Our business scope includes Poly Vinyl Acetate (PVAc) & Poly Vinyl Alcohol (PVA) Adhesive for woodworking, Poly Acrylate Emulsion for waterproofing, Chloroprene Rubber Adhesive for interior decoration, Epoxy resin for civil engineering, electronic, and composite applications.
SikaEmaco®
SikaEmaco®-110 PVA is a water-based polyvinyl acetate bonding agent. Apply it by brush, roller, or spray to masonry, gypsum plaster, concrete, and wallboard before topping with plaster or concrete mortar. Improves adhesion of plaster or concrete mortar to a variety of substrates.
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.
Preparation and Properties of Poly (vinyl acetate) Adhesive Modified
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.
Poly(vinyl acetate) Waterproofing
Abstract: Poly(vinyl acetate) (PVAc) is a widely used plastic material known for its excellent chemical stability, mechanical properties, and processability. In the field of waterproofing, PVAc stands out as a preferred material in construction, packaging, automotive industries, and more due to its unique characteristics. This article introduces the physical and chemical properties of PVAc and explores its applications in waterproofing.
I. Physical and Chemical Properties of Poly(vinyl acetate) Poly(vinyl acetate) appears as a white or light yellow solid/powder with good flowability and plasticity. It has a melting point of approximately 170°C and a decomposition temperature of 280°C. Its density is around 1.2 g/cm³, and it exhibits low water absorption (~0.05%). Additionally, PVAc demonstrates high resistance to acids, alkalis, and solvents, maintaining chemical inertness under most conditions.
II. Waterproofing Performance of Poly(vinyl acetate) Poly(vinyl acetate) offers superior waterproofing capabilities, primarily through:
- High Surface Tension: Forms a uniform, dense waterproof membrane that effectively blocks moisture penetration.
- Low Water Vapor Permeability: Prevents water vapor from passing through, protecting internal structures from humidity.
- UV Resistance: Maintains stability under sunlight exposure, resisting degradation from ultraviolet radiation.
- Chemical Corrosion Resistance: Withstands various chemicals, ensuring performance stability in harsh environments.
III. Applications in Waterproofing Poly(vinyl acetate) is extensively utilized in waterproofing across diverse fields:
- Construction Materials: Employed in roofs, walls, and floors to create waterproof layers, preventing rainwater and groundwater intrusion.
- Packaging Materials: Used in food containers and pharmaceutical packaging to block moisture, preserving product quality.
- Automotive Parts: Applies to tires, engine covers, and other components to prevent water damage and ensure operational reliability.
As a high-performance polymer, poly(vinyl acetate) excels in waterproofing applications. Its versatility spans construction, packaging, and automotive industries. With technological advancements and growing environmental awareness, the waterproofing capabilities of PVAc are expected to improve further, expanding its application scope.
Note: The original Chinese text referred to "聚醋酸乙烯酯" (poly(vinyl acetate)) but abbreviated it as "PVC" (polyvinyl chloride), which is incorrect. The translation corrects this terminology for accuracy.
