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、EVA
Fabrication of bulk polymer derived ceramics is challenging due to gas evolution during crosslinking leading to pores and cracks in final product. Mixture of ethylene vinyl acetate (EVA) and polyvinyl alcohol (PVA) was successfully used to generate open porosity before crosslinking step.
4、Polyvinyl Acetate
This report excludes production of vinyl acetate polymers where the vinyl acetate content is less than 50%, which is chiefly in ethylene–vinyl acetate (EVA) resins, which are used in injection molding, adhesive and film applications, and are covered in the CEH and reports.
聚醋酸乙烯酯 average Mw ~80,000
Polyvinyl acetate-based colloidal aqueous polymer dispersion Kollicoat (®) SR 30 D results in coatings characterized by moderate swelling behaviour, lipophilicity, pH-independent permeability for actives and high flexibility to withstand mechanical stress and is therefore used for controlled release coating.
Fabricating porous monolithic ceramic materials via phase
To overcome these drawbacks, in this report, we develop a novel approach for the fabrication of porous monolithic ceramic materials via phase separations in solutions of poly (vinyl alcohol) (PVA) and sol nanoparticles.
聚醋酸乙烯酯 CAS#: 9003
由醋酸乙烯在醋酸存在下聚合而成，聚合度以250～600为宜，聚合完成后，树脂中残存的微量催化剂 (通常为过氧化物)、单体和 (或)溶剂经真空干燥、蒸汽汽提、洗涤或联合处理法除去。 ChemicalBook 致力于为化学行业用户提供聚醋酸乙烯酯的性质、化学式、分子式、比重、密度,同时也包括聚醋酸乙烯酯的沸点、熔点、MSDS、用途、作用、毒性、价格、生产厂家、用途、上游原料、下游产品等信息。
(PDF) Sustainable Materials Based on Geopolymer–Polyvinyl Acetate
In this work, we describe for the first time the preparation and characterization of a new sustainable adhesive material to be used in the art and design sector, consisting of a geopolymer-based...
Synthesis, Characterization and Mechanical Properties of Poly (vinyl
Poly (vinyl acetate) (PVAc) is a well-known biodegradable polymer that is used in a variety of applications such as adhesives for porous materials wood, board, textiles, and ceramics [1–4].
Sustainable Materials Based on Geopolymer–Polyvinyl Acetate
In this work, the synthesis of new geopolymer-based composites containing up to 10% by weight of polyvinyl acetate and their chemical–physical, morphological, and mechanical properties have been investigated.
In the field of modern materials science, polyvinyl acetate (PVAc) has become a research hotspot due to its unique properties and widespread applications. As a material with excellent comprehensive performance, it occupies an irreplaceable position in traditional fields and demonstrates tremendous potential in emerging high-tech industries. This article explores in depth the properties, applications, and future development prospects of PVAc ceramics.
Polyvinyl acetate is a high-molecular-weight polymer synthesized through the polymerization of vinyl acetate monomers. Its molecular chain contains a large number of polar groups—vinyl acetate groups—which impart superior adhesive properties and film-forming capabilities, enabling the formation of sturdy and uniform films on various substrate surfaces. Additionally, PVAc exhibits good flexibility, chemical corrosion resistance, and biocompatibility, making it highly promising for applications in medical devices, biopharmaceuticals, and other fields.
In the realm of ceramics, PVAc has attracted significant attention due to its distinctive physicochemical properties. With a relatively high crystallization temperature and low melting point, PVAc serves as an effective binder or plasticizer in ceramic molding processes, aiding the production of ceramics with robust mechanical properties and thermal stability. When mixed with ceramic powders, PVAc can achieve densification through heat treatment and sintering, endowing the ceramics with a compact structure. This characteristic gives PVAc a clear advantage in the fabrication of high-performance ceramic materials.
Practical applications have demonstrated the versatile capabilities of PVAc ceramic materials. For instance, in the medical device sector, PVAc ceramics are used to manufacture artificial joints, heart stents, and other high-demand products requiring exceptional mechanical strength, wear resistance, and biocompatibility. In biopharmaceuticals, PVAc ceramics contribute to drug delivery systems and biocompatible microsphere carriers, enhancing drug efficacy while reducing side effects. Furthermore, PVAc ceramics show potential in electronic packaging, aerospace, and other advanced industries.
Despite its outstanding performance across multiple domains, PVAc ceramics still face challenges and limitations. For example, the high sintering temperature restricts its use in high-temperature environments, while its brittleness limits applications under impact loads. To address these issues, researchers are exploring new synthesis methods and modification techniques, such as incorporating nano-fillers and developing novel binders, to enhance the performance of PVAc ceramics.
Looking ahead, the research and application prospects of PVAc ceramics remain vast. With advancements in materials science, more efficient and eco-friendly preparation methods for PVAc ceramics are expected to emerge, reducing costs and expanding their applicability. As demand for high-performance ceramics grows, PVAc ceramics are poised to play a larger role in energy, environmental protection, smart manufacturing, and other critical areas.
polyvinyl acetate (PVAc) ceramics, as a material with unique properties, have already demonstrated superior performance in numerous fields. Through continued research and innovative applications, PVAc ceramics are likely to become even more integral to future technological progress, significantly contributing to the advancement of human society.
