Ceramic refers to a substance composed of continuous or discontinuous filaments. In plants and animals, fibers play an important role in maintaining tissue. Fiber has a wide range of uses, and can be woven into thin threads, thread ends and hemp ropes, and can also be woven into fiber layers when Alumina Ceramic Tube making paper or weaving felt; it is also commonly used to manufacture other materials and form composite materials together with other materials. Natural fibers exist in nature and can be obtained directly. According to their sources, they are divided into three categories: plant fibers, animal fibers and mineral fibers.
Plant ceramics are fibers obtained from plant seeds, fruits, stems, leaves, etc., and are natural cellulose fibers. Fibers obtained from plant bast such as flax, jute, apocynum, etc.; fibers obtained from plant leaves such as sisal, abaca, etc. The main chemical component of plant fiber is cellulose, so it is also called cellulose fiber. Plant fibers include: seed fibers, bast fibers, leaf fibers, and fruit fibers. Seed ceramics: refers to Alumina Ceramic Tube the single-cell fibers grown from the epidermal cells of some plant seeds. Such as cotton, kapok. Bast fiber: It is a single fiber or craft fiber obtained from the phloem of some plants. Such as: flax, ramie, jute, bamboo fiber.
Leaf fiber: It is a craft fiber obtained from the leaves or leaf sheaths of some plants. Such as: sisal, abaca. Fruit fiber: fiber obtained from the fruit of some plants. Such as: coconut fiber.
Animal fibers are fibers obtained from the hair of animals or the glandular secretions of insects. The fibers obtained from animal hair include wool, rabbit hair, camel hair, goat hair, yak wool, etc.; the fibers obtained from animal gland secretions include silk and the like. The main chemical component of animal fiber is protein, so it is also called protein fiber. Animal fibers (natural protein fibers) include: hair fibers and glandular fibers. Hair Ceramics: Animal hair follicles grow fibers with a multicellular structure composed of keratin. Such as: sheep wool, cashmere, camel hair, rabbit hair, mohair.
Silk fibers: fibers secreted by some insect silk glands, especially by lepidopteran larvae, and by secretions from some mollusks. Such as: silk. Mineral fibers are fibers obtained from mineral rocks with a fibrous structure. The main components are various oxides, such as silica, alumina, magnesium oxide, etc., and their Alumina Ceramic Tube main sources are various types of asbestos, such as chrysotile, crocidolite Wait. Chemical fibers are fibers that have been chemically processed. Can be divided into man-made fibers (regenerated fibers), synthetic fibers and inorganic fibers.
Do engineering ceramics exist in nature?
2022 03/26