Introduction of aramid staple fiber
Aramid staple fiber, aromatic polyamide chemical fiber, is a linear polymer composed of aromatic groups and amide groups, which has good physical properties, smooth organic chemical structure, ideal mechanical equipment characteristics, with high compressive strength, high toughness, heat resistance, corrosion resistance, light quality, anti-abrasion and other excellent characteristics.
The carbon chain structure of para-aramid fiber differs from the general soft polymer molecular chains in that it consists of a rod-like molecular structure made up of benzene ring pairs.
The carbon chain of aramid fiber molecules has good neatness and has a stiffness crystalline module, which makes it easy to produce the shape of liquid crystal display. This kind of stiffness molecular chain in the liquid crystal display state, along with the content of the increase can be juxtaposed to produce parallel surface sorting structure, the internal structure of molecular open chain occurs highly ordered, without the unique pulling Shen, only according to the spinning fixed term can achieve flexural chain structure, complete high toughness.
Not only that, in the whole process of spinning, this kind of structure can also be in the restricted space edge of the chemical fiber tends to high density of the double layer stack, prompting high polymer has high compressive strength. Aramid fiber molecular chain along the chemical fiber radial height tends to, the amide group on the hydrogen atom can be able to electronically device with another molecular chain on the carbonyl group to produce covalent bonds, prompting the middle of the molecular chain to establish a covalent bond chemical cross-linking.
Aramid staple fibers include different shapes of supramolecular structures such as skin-core structure, subcrystal structure and microfiber structure. Figure 2 shows a plan view of the internal structural structure of aramid fiber. The epidermal layer of chemical fibers has a smaller glass transition temperature than the core layer, and the thickness of the epidermal layer is about 0.1μm to 1μm (depending on the type of chemical fiber and spinning process).
In order to enhance the comprehensive quality of all employees of Runhua New Materials, enrich their spare time, create a team atmosphere, promote and deepen the exchanges and communication between employees, and publicize and implement the construction of corporate culture, Runhua New Materials organized all employees to go to Huizhou, Guangdong Province to carry out a team building activity of a research trip to the Greater Bay Area.
The "Third Friction Material Quality Development Conference and High Level Forum" jointly organized by China National Inspection and Testing Holdings Group Xianyang Co., Ltd. and the People's Government of Zaoyang City successfully concluded on November 10, 2023 in Zaoyang City, Hubei Province.
RunHua (Jiangsu) New Materials participated in the 2nd Thermoplastic Composites Industry Summit held in Suzhou, Jiangsu, China on October 19, 2022.
On October 18, 2022, with the unremitting efforts of the management staff and all employees, our company successfully passed ISO9001:2015 and IATF16949:2016 quality management system certification, which is a new milestone for Runhua (Jiangsu) New Materials Co.
Runhua (Jiangsu) New Material participated in the 24th China (Luoyang) International Friction and Seal Material Technology Exchange and Product Exhibition held from August 8, 2022 to August 10, 2022, which was sponsored by China Friction and Seal Material Association.
The compressive strength of aramid yarn is high, which means that it has a very good tensile strength and is therefore commonly used in fire safety, electrical engineering construction, railway lines, petrochemical equipment and other industries. As a fiber ductile yarn, the performance of aramid yarn can take into account the requirements of various natural environments, especially in the field of cable wire to give full play to the significant advantages. Aramid wire is commonly used because it depends on its good tensile strength, then what are the elements that endanger the fracture strength of aramid wire Rashen, we simply grasp the next.