Patent classifications
D06M11/76
Super-hydrophobic fabric and preparation method thereof
The present invention provides super-hydrophobic fabrics and a preparation method thereof, and belong to the field of textiles. The super-hydrophobic fabrics are obtained by finishing Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. Via a one-step finishing method using Pickering emulsion technology, facile preparation of durable super-hydrophobic fabrics is realized. The static contact angle between the finished fabric surfaces and water droplets is greater than 150 degrees, and the water droplets can roll off easily; and after being subjected to 30 times of standard washing tests, the finished fabrics still maintains excellent water repellency. In addition, the Pickering emulsion preparation and finishing process of the present invention are environmentally friendly, pollution-free, facile to operate and widely applicable.
Press-Bonded Body and Method for Producing the Same
A press-bonded body or a method for producing the same is provided, such that the press-bonded body is a press-bonded body of at least one of a base material selected from the group consisting of non-woven fabric, stretched porous film, and fiber. The base material contains a fluorine resin (except for polytetrafluoroethylene) having a —CF2- group content of 85% by mass or greater. Polytetrafluoroethylene fibrils bond fibers constitute the base material, and in relation to the entirety of the fibrils, the proportion of the number of fibrils that are oriented at an angle of 45° to 90° relative to the direction of the fibers constituting the base material is 50% or greater.
Press-Bonded Body and Method for Producing the Same
A press-bonded body or a method for producing the same is provided, such that the press-bonded body is a press-bonded body of at least one of a base material selected from the group consisting of non-woven fabric, stretched porous film, and fiber. The base material contains a fluorine resin (except for polytetrafluoroethylene) having a —CF2- group content of 85% by mass or greater. Polytetrafluoroethylene fibrils bond fibers constitute the base material, and in relation to the entirety of the fibrils, the proportion of the number of fibrils that are oriented at an angle of 45° to 90° relative to the direction of the fibers constituting the base material is 50% or greater.
Complex fibers of cellulose fibers with inorganic particles and processes for preparing them
The present invention aims to provide complex fibers of a cellulose fiber with inorganic particles exhibiting better drainage and retention when they are used as materials for forming sheets. In the complexes of the present invention, (1) the weight ratio B/A between the inorganic content (B) in the residue remaining on a 60-mesh sieve (having an opening of 250 μm) after an aqueous suspension of a complex fiber having a solids content of 0.1% is filtered through the sieve and the inorganic content (A) in the complex fiber before treatment is 0.3 or more; or (2) the weight ratio C/A between the inorganic content (C) in fractions corresponding to an effluent volume (L) of 16.00 to 18.50 and an elution time (sec) of 10.6 to 37.3 and the inorganic content (A) in the complex fiber before treatment is 0.3 or more when an aqueous suspension of the complex fiber having a solids content of 0.3% is classified using a fiber classification analyzer under the conditions of a flow rate of 5.7 L/min, a water temperature of 25±1° C., and a total effluent volume of 22 L.
FORMULATION FOR A FIBROUS NON-WOVEN FACING MATERIAL
The present invention provides a formulation for a fibrous non-woven facing material, wherein the formulation comprises a binder, a filler, and an extender. The extender has an median particle size, d.sub.50, which is equal to or less than 3.5 μm, and a non-spherical morphology. The filler has an median particle size, d.sub.50, which is equal to or less than 3.0 μm and wherein the filler has a d.sub.10 equal to or less than 1.0 μm and a d.sub.90 equal to or less than 6.0 μm. The formulation comprises less than 13 wt % titanium dioxide on a dry solids basis. Also provided is a fibrous non-woven facing material comprising the formulation, a process for preparing the fibrous non-woven facing material and a fibrous non-woven facing material obtained by said process.
FORMULATION FOR A FIBROUS NON-WOVEN FACING MATERIAL
The present invention provides a formulation for a fibrous non-woven facing material, wherein the formulation comprises a binder, a filler, and an extender. The extender has an median particle size, d.sub.50, which is equal to or less than 3.5 μm, and a non-spherical morphology. The filler has an median particle size, d.sub.50, which is equal to or less than 3.0 μm and wherein the filler has a d.sub.10 equal to or less than 1.0 μm and a d.sub.90 equal to or less than 6.0 μm. The formulation comprises less than 13 wt % titanium dioxide on a dry solids basis. Also provided is a fibrous non-woven facing material comprising the formulation, a process for preparing the fibrous non-woven facing material and a fibrous non-woven facing material obtained by said process.
WALKABLE FACER MATS FOR ROOF INSULATION
The present invention provides a non-woven mat suitable for use as a facer, for example for insulation products. The non-woven mat comprises a non-woven veil of glass fibres impregnated with a binder/filler composition and advantageously allows walkability, reduced compressibility, and structural support of an otherwise easily compressible and deformable layer, board or material.
WALKABLE FACER MATS FOR ROOF INSULATION
The present invention provides a non-woven mat suitable for use as a facer, for example for insulation products. The non-woven mat comprises a non-woven veil of glass fibres impregnated with a binder/filler composition and advantageously allows walkability, reduced compressibility, and structural support of an otherwise easily compressible and deformable layer, board or material.
Carbon cloth material coated with iodine-doped bismuthyl carbonate, preparation method thereof, and application in oil-water separation
The present invention discloses a carbon cloth material coated with iodine-doped bismuthyl carbonate, a preparation method thereof, and application in oil-water separation. The preparation method comprises the following steps: immersing preprocessed carbon cloth in iodine-doped bismuthyl carbonate precursor solution, and carrying out hydrothermal reaction to obtain the carbon cloth material coated with iodine-doped bismuthyl carbonate, wherein the iodine-doped bismuthyl carbonate precursor solution comprises bismuth citrate, sodium carbonate, sodium iodide and ethylene glycol. Through a hydrothermal method, the carbon cloth coated with iodine-doped bismuthyl carbonate is synthesized in one step, and the carbon cloth material has a function of emulsion separation. The material has the advantages of simple preparation, abundant raw material, good separation effect and good application prospect on the aspects of industrial sewage treatment and emulsion separation.
Carbon cloth material coated with iodine-doped bismuthyl carbonate, preparation method thereof, and application in oil-water separation
The present invention discloses a carbon cloth material coated with iodine-doped bismuthyl carbonate, a preparation method thereof, and application in oil-water separation. The preparation method comprises the following steps: immersing preprocessed carbon cloth in iodine-doped bismuthyl carbonate precursor solution, and carrying out hydrothermal reaction to obtain the carbon cloth material coated with iodine-doped bismuthyl carbonate, wherein the iodine-doped bismuthyl carbonate precursor solution comprises bismuth citrate, sodium carbonate, sodium iodide and ethylene glycol. Through a hydrothermal method, the carbon cloth coated with iodine-doped bismuthyl carbonate is synthesized in one step, and the carbon cloth material has a function of emulsion separation. The material has the advantages of simple preparation, abundant raw material, good separation effect and good application prospect on the aspects of industrial sewage treatment and emulsion separation.