摘要:
The present invention relates to a polyurethane foam comprising graphene, wherein the polyurethane foam comprises graphene structure and a non-carbon non-oxygen non-hydrogen element. By choosing a specific composite having a carbon nanostructure, the present invention achieves compounding polyurethane via simply mixing with polyether polyol, and then polymerizing with polyisocyanate, omitting the step of compounding the composite having a carbon nanostructure, having a simple process and seamlessly connecting with existing equipments.
摘要:
Provided is a porous graphene preparation method, comprising: under the function of a catalyst, conducting catalytic treatment on a biomass carbon source to obtain a first intermediate product, the catalyst comprising one or more of chlorides of manganese, iron compounds, cobalt compounds and nickel compounds; under protective gas condition, heating the first intermediate product from a first temperature to a second temperature and holding to obtain a second intermediate product; heating the second intermediate product from the second temperature to a third temperature and holding to obtain a third intermediate product; heating the third intermediate product from the third temperature to a fourth temperature and holding to obtain a fourth intermediate product; and cooling the fourth intermediate product from the fourth temperature to a fifth temperature and holding to obtain porous graphene. The porous graphene prepared via the method of the present invention has better electrical conductivity.
摘要:
The present invention relates to a composite polyester material, a polyester fiber, processes for preparing the same and uses thereof. The polyester material and polyester fiber both comprise a composite having a carbon nanostructure, which comprises carbon element, from 0.5 to 4wt% of a first non-carbon non-oxygen element substance, and from 0 to 4wt%, of a second non-carbon non-oxygen element. The first non-carbon non-oxygen element is selected from the group consisting of P, Si, Ca, A1 and Na; the second non-carbon non-oxygen element is anyone selected from the group consisting of Fe, Ni, Mn, K, Mg, Cr, S or Co, or a combination of at least two selected therefrom. The G peak and D peak of the carbon element in the Raman spectrum has a peak height ratio of 1-20 in the composite having a carbon nanostructure. The present invention chooses a composite having a specific carbon nanostructure to compound polyester material and polyester fiber to obtain more excellent antibacterial effect and low-temperature far-infrared performance. The present invention further provides a simple process for preparing a polyester material compounded from a composite having a carbon nanostructure.
摘要:
The present invention relates to a graphene-containing viscose fiber and a preparation method thereof, wherein the graphene is a non-oxidized graphene of no more than 10 layers. The preparation method comprises introducing a graphene into a viscose prior to spinning. The viscose fiber obtained according to the present invention possesses significant far-infrared and antibacterial properties.