The present invention provides a preparation method of aramid fiber far-infrared emitting paper. In the present invention, para-aramid chopped fiber and para-aramid pulp fiber are used as paper base functional materials with excellent characteristics of high specific strength and high specific stiffness. In addition, the para-aramid chopped fiber and the para-aramid pulp fiber can form a paper material with pores and porous channels, and carbon nanotubes are embedded into the structural pores and porous channels of the paper material. Therefore, the aramid fiber far-infrared emitting paper has better molding quality and composite performance. Results of embodiments indicate that: A far-infrared wavelength emitted by the aramid fiber far-infrared emitting paper provided in the present invention is 4 m to 20 m, a main frequency band thereof is approximately 10 m, and far-infrared conversion efficiency is up to 99%; and the aramid fiber far-infrared emitting paper has tensile strength of 0.12 KN/mm.sup.2 to 0.18 KN/mm.sup.2, and can be bent and folded.

There is provided a method of manufacturing a graphene/graphene oxide layer comprising the steps of: providing a suspension of graphene/graphene oxide in a suspension liquid, applying the suspension on a support, heating the suspension and the support to evaporate liquid to form a layer of graphene/graphene oxide on the support, subjecting the graphene/graphene oxide layer and the support to pressure, and subjecting the graphene/graphene oxide layer to annealing process.

There is provided a method of manufacturing a graphene/graphene oxide layer comprising the steps of: providing a suspension of graphene/graphene oxide in a suspension liquid, applying the suspension on a support, heating the suspension and the support to evaporate liquid to form a layer of graphene/graphene oxide on the support, subjecting the graphene/graphene oxide layer and the support to pressure, and subjecting the graphene/graphene oxide layer to annealing process.

A high-strength network structured nano-carrier material and a preparation method and application thereof. A nano-cellulose solution and graphene are mixed and ultrasonication is performed in an ultrasonic pulverizer to obtain a nano-cellulose/graphene suspension. The suspension with a phenolic resin adhesive is mixed and stirred to obtain a nano-cellulose/graphene/phenolic resin suspension. The nano-cellulose/graphene/phenolic resin suspension is injected into a mold. The mold is placed in a freeze dryer for freezing and vacuum dried in two stages to obtain a nano-cellulose/graphene/phenolic resin aerogel. The aerogel is preheated and cured in a muffle furnace, then subjected to a high-temperature thermal decomposition treatment in a tube furnace to obtain a nano-carrier material having a high-strength network structure. The preparation method is simple and convenient, low in cost, environmentally friendly and green. The obtained carrier material has a good water resistance and a high mechanical property, and can carry more active substances.

A high-strength network structured nano-carrier material and a preparation method and application thereof. A nano-cellulose solution and graphene are mixed and ultrasonication is performed in an ultrasonic pulverizer to obtain a nano-cellulose/graphene suspension. The suspension with a phenolic resin adhesive is mixed and stirred to obtain a nano-cellulose/graphene/phenolic resin suspension. The nano-cellulose/graphene/phenolic resin suspension is injected into a mold. The mold is placed in a freeze dryer for freezing and vacuum dried in two stages to obtain a nano-cellulose/graphene/phenolic resin aerogel. The aerogel is preheated and cured in a muffle furnace, then subjected to a high-temperature thermal decomposition treatment in a tube furnace to obtain a nano-carrier material having a high-strength network structure. The preparation method is simple and convenient, low in cost, environmentally friendly and green. The obtained carrier material has a good water resistance and a high mechanical property, and can carry more active substances.

To provide an expansion molded product not only excellent in sound absorption properties and rigidity but also resistant to tearing after bending deformation, and a web and a stampable sheet suitable for producing the expansion molded product. The presently disclosed web, stampable sheet, and expansion molded product contain a reinforcing fiber containing an inorganic fiber and an organic fiber, a thermoplastic resin, and a thermal expandable particle, where the proportion of the reinforcing fiber is 20 mass % or more and 55 mass % or less based on a total amount of the reinforcing fiber and the thermoplastic resin, the proportion of the organic fiber is 25 mass % or more and 77 mass % or less based on a total amount of the organic and inorganic fibers, the reinforcing fiber has an average length of 8 mm or more, and the organic fiber has a breaking elongation of 15% or more.

The present invention relates to a method of manufacturing a fibre web which includes a fibre matrix that is comprised of natural fibres and possibly synthetic fibres. According to the present method, an aqueous, planar fibre layer is prepared from the natural fibres and possible synthetic fibres, which layer comprises an aqueous phase and a fibrous phase, and which layer is dried in order to remove the aqueous phase, in which case the natural fibres and possible synthetic fibres together form a fibre matrix. According to the present invention, binder is applied onto the water-containing fibre layer, which binder is allowed to penetrate via the aqueous phase at least partially in between the fibres, before the hydrogen bonds between the fibres form. With the present invention, it is possible to manufacture such cellulose or lignocellulose-based fibre products which have plastic-like properties, such as good fracture toughness, tear resistance and stretching.

The present invention relates to a method of manufacturing a fibre web which includes a fibre matrix that is comprised of natural fibres and possibly synthetic fibres. According to the present method, an aqueous, planar fibre layer is prepared from the natural fibres and possible synthetic fibres, which layer comprises an aqueous phase and a fibrous phase, and which layer is dried in order to remove the aqueous phase, in which case the natural fibres and possible synthetic fibres together form a fibre matrix. According to the present invention, binder is applied onto the water-containing fibre layer, which binder is allowed to penetrate via the aqueous phase at least partially in between the fibres, before the hydrogen bonds between the fibres form. With the present invention, it is possible to manufacture such cellulose or lignocellulose-based fibre products which have plastic-like properties, such as good fracture toughness, tear resistance and stretching.

Embodiments described herein relate generally to graphene oxide membranes for fluid filtration and more specifically to graphene oxide membranes having tunable permeability, rejection rate, and flux. Some embodiments of the graphene oxide membranes disclosed herein are characterized as having a flux of at least about 2.510.sup.4 gallons per square foot per day per psi with a 1 wt % lactose solution at room temperature, and a lactose rejection rate of at least 50% with a 1 wt % lactose solution.

The present invention relates to an activated carbon sheet, and particularly relates to an activated carbon sheet for air purification comprising activated carbon, which is suitable for removing volatile organic compounds in the passenger compartment of an automobile or the like. An object of the present invention is to provide a sheet that is excellent in toluene adsorption capacity and flame retardancy. An activated carbon sheet for air purification comprising an activated carbon fiber, granular or powdered activated carbon, and a fibrillated fiber, wherein a mass (g/m.sup.2) of the activated carbon fiber is 5 g/m.sup.2 or more, a pressure loss as measured by a method set forth below is 150 Pa or less, and a burn distance as measured by the FMVSS 302 burning test is 51 mm or less: <pressure loss test method> the method is conducted in accordance with JIS B 9927:1999 Appendix (Standard) CleanroomAir filtersTest methods, 3.2 Pressure Loss Test as follows: a piece of the activated carbon sheet cut in the form of a circle with a diameter of 110 mm is used as a measurement sample; air is sucked though the measurement sample at a linear velocity of 0.1 m/s, and a difference in static pressure between an upstream side and a downstream side of the activated carbon sheet is measured with a differential pressure gauge; and figures up to the one's place of the measured value are used as significant figures.