Antistatic PVC board

Abstract

The invention relates to the technical field of high polymer materials, in particular to an antistatic PVC board. The PVC plastic board is easy to generate electricity by friction, easy to collect dust and adsorb dirt, and generates an electrode phenomenon to people in the processing and using processes. In order to solve the problems, the invention provides the antistatic PVC board in which modified graphene is used as an auxiliary antistatic agent component, the modified graphene is sulfur-nitrogen co-doped graphene, and nitrogen is introduced into a carbon material, so that the electronegativity of the carbon material can be changed, carbon atoms around nitrogen atoms carry more positive charges, a PVC product is easy to generate negative charges when being rubbed, and the carbon atoms with positive charges around nitrogen atoms can neutralize a part of electrons; through introduction of the S element, graphene can generate more defect structures and active vacancies, the speed of conducting accumulated charges in a PVC system to the outside can be better accelerated, and static electricity is eliminated by neutralizing negative charges in the PVC product. The antistatic PVC board has a good application prospect.

Description

Technical field [0001] The present invention relates to the field of polymer materials, and more particularly to an antistatic PVC plate. Background technique [0002] Static electricity is a charging accumulation phenomenon in the surface of the insulating material, which is derived from friction, contact, or induction of electricity, for the insulator, which charges the plastic products to bring a series of charges due to charge. Hazard. In addition to enabling the production itself to easily vacuum, adsorb dirt, in the process of processing and use, it is seriously caused by severe accidents such as electrostatic discharge generating sparks. To solve the antistatic problem of plastic, the insulation resistance of the plastic parts can be reduced by adding antistatic agents. The charge is constantly generated during the friction of the object, and the simultaneous neutralization, the charge is mainly mainly through the volume of the friction itself, surface conduction, and thre...

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Problems solved by technology

[0003] Studies have shown that adding carbon materials to PVC products can greatly improve its antistatic properties. For example, by using the scraping method, 2mm chopped carbon fibers are mixed into PVC paste to make samples, and PVC products are obtained by plasticizing in an oven. The performance is greatly improved, and the surface resistance of PVC products can be reduced to 10 4 Ω order, but when the calendering method is used to prepare PVC products, a large number of chopped carbon fibers will be broken, and the addition of chopped carbon fibers has basically no effect on the antistatic performance of PVC products (Wang Guoquan, Zeng Jie. Carbon fiber / polyvinyl chloride blend antistatic Material Research [J]. Green Building, 1996,012 (004): 149-150.); Another example is patent CN 105507558 A which discloses a kind of antistatic PVC plastic floor, which adopts spraying on the surface of PVC floor to contain antistatic agent Modified poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid and graphene to improve the antistatic effect of PVC products, and reduce the surface resistance of PVC products to 10 5 Ω order of magnitude, its antistatic performance needs to be further improved

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