What is Cellulose Insulation?

Fibrous material is a structured material formed by fibrous substances through a textile processing process, and is often also referred to as a textile material. The application history of fiber materials has been quite long. Although there is no clear record of when this material was produced, in ancient human trade, fiber materials have always occupied an important position. It fully illustrates the importance of fiber materials to human development. .

Fibrous material is a structured material formed by fibrous substances through a textile processing process, and is often also referred to as a textile material. The application history of fiber materials has been quite long. Although there is no clear record of when this material was produced, in ancient human trade, fiber materials have always occupied an important position. It fully illustrates the importance of fiber materials to human development. .

Natural fibers or synthetic fibers can be made into fiber paper or various textiles and used directly as insulating materials; or paper is impregnated with liquid medium and becomes impregnated paper for capacitor dielectric and cable insulation; or impregnated (coated) with insulating resin (glue) After hot pressing, it is rolled into insulating laminates and rolled products as insulating materials; or impregnated with insulating varnish to make insulating varnished cloth (belt) and lacquered silk for electrical insulation. Natural inorganic fibers can be used alone or in combination with plant fibers or synthetic fibers as high temperature resistant insulation. Fiber materials are also widely used as insulation materials for superconducting and low-temperature winding wires because it has the following advantages:

In the superconducting magnet coil, the coolant can permeate all the cross sections and increase the heat transfer area;

Ensure that the impregnated paint or encapsulant directly contacts the superconducting fiber and the composite layer. In principle, natural silk, glass fiber and synthetic fiber can be used as the insulation material for low temperature wire wrap. In fact, synthetic fibers such as polycaprolactam and polyester fibers are widely used in superconducting magnet coils.

Fibrous materials are so bright in the field of textiles and clothing that many people ignore its application in other fields. It is true that before the advent of chemical fibers, due to the lack of mechanical properties and ability to adapt to harsh environments, natural fibers had fewer applications in the engineering field, and were generally used only as thermal insulation materials, such as thermal storage heating equipment, industrial Furnaces, power generation equipment, etc. After the invention of chemical fibers at the end of the 19th century, through chemical synthesis technology, chemical fibers with high strength, high modulus, high temperature resistance, corrosion resistance, flame resistance and other characteristics can be produced, which greatly makes up for the lack of performance of natural fibers. .

Thanks to advances in chemical fibers, fiber materials are recognized by materials science. Due to the structural characteristics of fiber materials, fiber materials have physical characteristics that are incomparable with traditional solid materials. In addition, they are light in weight and can be integrally molded, which has attracted attention in various fields. In the 1920s, Boeing already used textile structures to strengthen aircraft wings. On Boeing's new model, the Boeing 787, the use of fiber composites has reached 50%. Fiber materials have been used in construction for nearly 40 years, including awning materials, membrane structure materials, waterproof materials, and fiber-reinforced composite materials. These materials not only have landscaping and decorative effects, but also have the characteristics of light weight, high strength, thermal insulation, recyclable, degradable, renewable and so on. They are new materials in the field of modern construction. In medical materials, fiber materials are widely used from sutures to artificial skin, artificial blood vessels, artificial bones, artificial joints, artificial ligaments, and even artificial kidneys, artificial livers, artificial lungs, and artificial hearts.

The structure of the fiber material is very special. First of all, it is not a continuous medium in the usual sense. There are a large number of fiber-to-fiber, fiber-to-air interfaces in the fiber material. The connection between the fibers is very loose. In terms of mechanical properties, Has a very unique modulus; secondly, the pores in the fiber material are naturally formed voids between the fibers, and these pores are through pores, which makes the effective porosity of the fiber material very high; again, the fiber is an aspect ratio The large material form, the diameter is very small, and it is easy to bend and deform, so the fiber material is also very soft, and the shape adaptability is very good. In this regard, Pan believes that some characteristics of fiber materials are closer to soft materials. From a microstructural perspective, fibrous materials produced by nonwovens or felting are very similar to plant or animal cells. ^[1]

Decorative art cannot exist independently, and usually exists in a certain range of environment. It is inseparable from architecture. The combination of the two forms the whole environment. With the development of society, more and more modern buildings are becoming taller and denser. Buildings are mostly made of hard materials such as steel bars and cement. Facing densely packed high-rise buildings, people who have worked for a day Withstand an inexplicable sense of depression. People living in this social form more than ever need a medium to release stress, which can regulate and complement fast-paced modern life, reduce people's sense of life depression, and relax their mind and body.

Among the many art fields, the works that can alleviate people's depressive feelings are fiber materials, called fiber art. Fiber art gives people a warm and soft feeling, which is used to decorate in the built environment and fill modern decorative space. Be tender.

Therefore, soft sculptures represented by fiber art with novel decorative effects and unique aesthetics have broken the era of murals and sculptures as traditional decoration, and the era of fiber art has quietly risen to complement and complement traditional decorative arts. . Fiber art is no longer a single form in terms of decorative style, material use and expression. It is more and more diversified. It not only shows the thickness of wool fibers, but also the simplicity of hemp fibers. In terms of shape and color The performance is more changeable, and the contrast of texture and texture is more abundant. The development of modern science and technology has promoted the innovation of craftsmanship in decorative arts, and the integration of new materials has made fiber materials have a more comprehensive expression. ^[2]