2results about How to "Reduce volume resistance" patented technology

The application provides a polyether ether ketone heat shrinkage composition and application thereof. The composition comprises 100 parts of polyether ether ketone resin and 30-50 parts of carbon conductive filler composite material by weight. The carbon conductive filler composite material is obtained by in-situ polymerization of carbon conductive filler and polyether ether ketone resin, the carbon conductive filler is obtained by zero-dimensional C 60 The synergistic addition of zero-dimensional C 60 , one-dimensional single-walled carbon nanotubes and two-dimensional reduced graphene oxide improves the filling efficiency of the carbon conductive filler. Research shows that when the heat shrinkage rate of the prepared polyether ether ketone heat shrinkage pipe material is 1.6:1, the recovery rate can be as high as 92.1%, the tensile strength is high, the original volume resistance, the volume resistance after immersion in aviation kerosene for 168 hours and the volume resistance after irradiation at a dose of 1000 kGy are all small. It is shown that the prepared heat shrinkage pipe material has excellent radiation resistance, aviation kerosene resistance, antistatic function, shrinkage performance and mechanical properties.

This invention provides a photographic paper base and photographic paper. The photographic paper base includes a base paper layer and a plastic layer, with the plastic layer disposed on at least one side of the base paper layer. The base paper layer comprises pure wood pulp, an antistatic agent, a hygroscopic agent, and an anti-bleeding agent. The antistatic agent includes a sodium salt, and the hygroscopic agent includes a lithium salt. Therefore, in the photographic paper base of this invention, sodium salt is used as the antistatic agent, and lithium salt as the hygroscopic agent. The simultaneous use of both effectively reduces the volume resistivity of the paper base, thereby preventing the generation of static spots due to charge accumulation and discharge. It also reduces moisture loss from the cut edges of the paper base, thus preventing edge bleeding. Furthermore, sodium and lithium salts have strong solubility and do not interact with the base paper fibers and the anti-bleeding agent, therefore they do not exacerbate edge bleeding or affect the effectiveness of the anti-bleeding agent. Therefore, the photographic paper base of this invention has a low volume resistivity, avoids the generation of static sparks, and is less prone to edge bleeding and bleed.