Polyester fiber conductive paper and preparation method thereof

Abstract

The invention discloses polyester fiber conductive paper and a preparation method thereof. The polyester fiber conductive paper disclosed by the invention comprises short carbon fiber, polyester ultra-short fiber, low-melting-point ultra-short fiber and wool pulp fiber. The preparation method comprises the following steps: firstly manufacturing conductive paper; and then carrying out hot press processing treatment. The polyester fiber conductive paper disclosed by the invention not only maintains the advantages of wood pulp conductive paper in a paper technology, that is, uniform thickness, uniform distribution of carbon fiber and uniform heating temperature, but also remedies the defects that the wood pulp conductive paper is low in strength, low in water resistance and airtight and cannot be recovered as the damp powder is attenuated, so that the automatic production process of electric heating products is satisfied, the condition that the conductive layer is easy to break and layer in the processes of producing and using the products is overcome, the failure rate and power attenuation of a conductive paper material in the using process are eliminated, and the quality of the electric heating products is greatly improved and the service life of the electric heating products is prolonged. The polyester fiber conductive paper is a leap and upgrade and transformative innovation breakthrough in the technology of the electric heating material.

Description

technical field [0001] The invention relates to a manufacturing technology of a conductive heating material, in particular to a polyester fiber conductive paper and a preparation method thereof. Background technique [0002] Carbon fiber is an excellent semiconductor heating material in the world at present. It is a high-tech product used by aerospace military to civilian use. It uses electricity as energy to generate far-infrared radiation electromagnetic wave heat source. It is a new type of electric heating heating material and a new revolution in the heating field. Polyester staple fiber is obtained by spinning polyester into tow and cutting it. Polyester fiber has good insulation, high strength, good elasticity, and has the characteristics of constant water absorption. The strength of polyester fiber is nearly twice that of cotton, and it is stronger than wool. It is 3 times higher and 5 times higher than wood pulp fiber, so the polyester fabric is strong and durable, a...

AI Technical Summary

Problems solved by technology

2 The disadvantage is that the conductive paper has low strength, airtightness, and extremely low water resistance. After being soaked in water, the strength is weakened by 70%, the conductivity is reduced by 60%, and the resistivity is increased by more than 60%, resulting in a substantial drop in power.

3. Due to the extremely low water resistance of conductive paper in the production of electric heating products, it is easy to crack and delaminate, resulting in low product qualification rate and short service life during use

2 The disadvantage is that the uniformity of the thickness is poor, and the difference between the transverse and longitudinal strength is large. Because the length of the fiber material required by the carding machine cannot be less than 30 mm, the carbon fiber distribution is poor and the temperature is not uniform during use.

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