Preparation method of white board containing graphene heat-conducting layer and having good ink absorbency

Abstract

The invention discloses a preparation method of a white board containing a graphene heat-conducting layer and having good ink absorbency. The preparation method comprises the following steps of: 1, preparing a graphene permeable core layer paper layer and a graphene permeable surface layer paper layer; 2, applying glue; 3, performing two-fold screen forming and squeezing on the graphene permeable core layer paper layer and the graphene permeable surface layer paper layer, performing stripping to form base paper; 4, detecting the surface character of the base paper; 5, compounding at the bottom of the base paper to form an oiled paper layer; 6, conducting surface glue application and coating on the base paper obtained in the step 5; and 7, conducting drying and shaping. The graphene oxide is adsorbed on the inner layer paper base of the white board paper in a vacuum suction filtration manner; the graphene on the surfaces of the surface layer and the inner layer is re-distributed due to a suction filtration mode, so that the distribution uniformity of the graphene is improved; the surface shape of the inner layer paper base during production is detected in real time; the printing surface performance is improved; and the three-dimensional thermal conductivity is good.

Description

technical field [0001] The invention relates to the technical field of making white board paper, in particular to a preparation method of white board paper containing a graphene heat conducting layer and having good ink absorption. Background technique [0002] In our daily life, there are different performance requirements for paper, which promotes the development of the special paper industry, such as acid resistance, antibacterial, oleophobic and other special properties. On the other hand, there is a great demand for paper in daily life, which has led to the research and production of special paper becoming a hot industry and research hotspot. The consumption of specialty paper and paperboard has grown positively for three consecutive years, and it is far ahead of the growth rate of other paper types. Especially in the case of a downturn in the industry, it is necessary to transform negative-growth cultural paper into specialty paper. [0003] In today's society where t...

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Problems solved by technology

[0004] However, in the prior art, most of them are graphene films; they are mainly used in the semiconductor field; such as patent 201410361337.5; silver-doped graphene composite paper and its preparation method; Disclosed is the preparation of graphene oxide, the graphene oxide is ultrasonically treated to prepare a graphene oxide suspension; silver nitrate is added to the graphene oxide suspension to obtain a mixed solution; the mixed solution is evaporated, Obtaining silver-doped graphene oxide composite paper; and putting the silver-doped graphene oxide composite paper into a solution containing a reducing agent for reduction treatment to obtain silver-doped graphene composite paper; this composite paper cannot be directly used as Specialty paper is used in the packaging industry; there is also direct mixing of graphene into pulp to prepare composite special paper. The defect of this kind of paper is that the distribution of graphene in paper is very uneven; After other products, the local heating of the product is uneven, and at the same time, the graphene material cannot be fully utilized

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