Preparation And Performance Analysis Of Non-woven Fabric For New Composite Roller

In A new-type composite roller was assembled by the roller sleeve and steel roller.the main material of the sleeve is nonwoven fabric.It has compressibility due to the porous Structures.Compared to the large use of rubber roller on cold rolling production line this new-type composite roller has a better squeeze,degreasing effect and longer service life,which can improve the efficiency and the quality of the production.The research of the new composite roller in domestic is basically in the blank stage,Only for production and application of the new composite materials roll through imported nonwoven products which result in the high production costs and can not be widely used.A new composite material with excellent performance roller nonwovens was developed to solve the above-mentioned problem under the commission of the Shenzhen mill company.After a large number of experiments,a new non-woven fabric for composite roller was developed by using the mechanical and chemical bonding method in dry method.After the comparison of the performance between the development of the first generation of non-woven products in the subject and the foreign products the causes of the gap were analyzed,and process was improved The methods to develop the new generation of new-type composite roller includes the ratio of the working fluid,the spray mode and equipment of reinforcement process.The temperature in the working environment of the new composite material roller is taken as the main object to considerate.The hardness,tensile properties and thermal stability of nonwoven fabric were studied and analyzed At room temperature,100 ℃(the working temperature of the new composite roll),160 ℃(the maximum temperature of the new composite roll).The results show that,the value of the temperature is higher the hardness of the sample is smaller,the gap between the hardness value about.1A,the value of the temperature is higher the tensile strength is smaller,At the maximum temperature tensile strength value is 36.79 MPa.The thermogravimetric analysis showed that the stability of the chemical structure of the sample was stable before 246 ℃;The differential scanning calorimetry showed that the stability of the physical structure was stable before 200 ℃.The mechanical properties of the nonwoven products developed in this paper are within the allowable range of the requirements of the temperature of the new composite roll.The thermal stability meets the temperature requirements used.Therefore,the nonwovens developed in this project can be used for the production of new composite roller.