36results about How to "Improve foamability" patented technology

To provide a surfactant composition with an excellent foamability and thickening performance and further an excellent storage stability, it comprises the following components (a) and (b):(a) at least one anionic surfactant selected from (1) sulfonate-type anionic surfactants having amide group or ester group, (2) carboxylate-type anionic surfactants and (3) phosphate-type anionic surfactants and(b) a compound expressed by the formula (I): where R1CO— is an acyl group having 6 to 24 carbon atoms, R2 is an alkyl group having 1 to 3 carbon atoms and R3 is an alkylene group having 1 to 6 carbon atoms or an alkenylene group having 2 to 6 carbon atoms.

Provided area carbon nanotube composite material obtained by treating a mixture including carbon nanotubes, at least one carbon compound other than carbon nanotubes and a dispersion medium under a sub-critical or super-critical condition of 50-400 atm, and a method for producing the same. More particularly, the method for producing a carbon nanotube composite material, includes: introducing a mixture including carbon nanotubes, at least one carbon compound other than carbon nanotubes and a dispersion medium into a preheating unit under a pressure of 1-400 atm to preheat the mixture; treating the preheated mixture under a sub-critical or super-critical condition of 50-400 atm; cooling and depressurizing the resultant product to 0-1000 C and 1-10 atm; and recovering the cooled and depressurized product. Provided also is an apparatus for producing a carbon nanotube composite material in a continuous manner.

[Problem] To provide a thermoplastic elastomer composition for foaming, which has sufficient foamability and provides a molded article having good appearance. [Solution to Problem] A thermoplastic elastomer composition for foaming, which comprises 10 to 40% by weight of a partially or completely crosslinked ethylene / α-olefin / non-conjugated polyene copolymer rubber (A) comprising ethylene, an α-olefin of 3 to 20 carbon atoms and a non-conjugated polyene, 3 to 33% by weight of an ethylene / α-olefin copolymer (B) comprising ethylene and an α-olefin of 3 to 20 carbon atoms, 10 to 40% by weight of polypropylene (C) having a melting point, as determined by differential scanning calorimetry (DSC), of 40 to 170° C., 10 to 45% by weight of a softener (D) for rubbers, and at least one substance selected from an isotactic propylene-based polymer (E-a) in an amount of 1 to 30% by weight and a syndiotactic α-olefin-based copolymer (E-b) in an amount of 1 to 20% by weight, with the proviso that the total amount of the components (A), (B), (C), (D), (E-a) and (E-b) is 100% by weight.

The present invention provides a thermally expandable microcapsule that has a high expansion ratio and durability at high temperatures, and is not likely to cause discoloration and odor when used for foam molding. The thermally expandable microcapsule of the present invention includes: a shell formed from a polymer; and a volatile expansion agent as a core agent encapsulated by the shell, the shell obtained by polymerizing a monomer composition that contains a nitrile monomer and a compound having a glycidyl group in a molecule, the shell exhibiting a value y of 50% or higher and a ratio y / x of 1.1 or higher, in which x represents a gel fraction at ordinary temperature, and y represents a gel fraction upon heating at 180° C. for 30 minutes.

The invention discloses a foam carbon holding passivator, which is prepared from the following raw materials in parts by weight: 100 parts of resin, 1-10 parts of curing agent, 1-10 parts of foaming agent, 1-10 parts of surfactant, 1-15 parts of salt modifier; the above raw materials are prepared, mixed, autoclaved and foamed, and carbonized to finally obtain a foam carbon holding passivator; the specific surface area of ​​the obtained foam carbon holding passivator is 300~500m 2 / g, the micropore diameter is 1.9~2.5nm, and the cell diameter is 200~500μm; the preparation process of this material is simple, the cost is low, and the performance is stable; through comparison with wood activated carbon, coal activated carbon, walnut shell biochar and ordinary foam carbon It can be found that the foam carbon immobilization passivator of the present invention can convert lead and cadmium in the soil into a residue state and effectively reduce the precipitation of lead and cadmium.

The invention discloses a foamed TPU composite phase-changing energy storage material. The foamed TPU composite phase-changing energy storage material is prepared from phase-changing energy storage material powder and TPU, wherein the phase-changing energy storage material powder accounts for 50 to 80 percent in mass fraction, the TPU accounts for 20 to 50 percent in mass fraction, and the sum of the mass fraction of various components is 100 percent. The invention also discloses a preparation method of the TPU composite phase-changing energy storage material. According to the TPU composite phase-changing energy storage material and the preparation method thereof, a phase-changing main material and a foaming agent are packaged by utilizing high-heat-conductivity porous inorganic filler, the composite phase-changing energy storage material powder is obtained by virtue of melting and mixing and has high heat conductivity and foamability, and the powder is mixed with the TPU material with low-temperature toughness by utilizing a continuous melting and blending process, so that the problems of the existing organic macromolecular phase-changing material such as low toughness, low heat conductivity and low energy storage rate can be solved.

The invention discloses a PVC (Polyvinyl Chloride) wood plastic foaming material. The PVC wood plastic foaming material is prepared from the following raw materials in parts by weight: 20 to 70 parts of SG5 type PVC resin, 30 to 80 parts of SG7 type PVC resin, 10 to 60 parts of natural plant fiber, 30 to 80 parts of nano calcium carbonate, 5 to 30 parts of activated heavy calcium carbonate, 8 to 40 parts of modifier, 0.3 to 3 parts of polyethylene glycol, 0.5 to 3 parts of G60 type lubricant, 0.3 to 2 parts of maleic acid grafted PE (Poly Ethylene) wax compatibilizer, 2 to 6 parts of organic tin stabilizer, 5 to 10 parts of foam regulator, 1 to 8 parts of processing agent and 1 to 3 parts of composite foaming agent. All components in a formula of the PVC wood plastic foaming material provided by the invention are good in compatibility and have excellent dispersity and fluidity, so that the PVC wood plastic foaming material has good processing performance; meanwhile, the PVC wood plastic foaming material also is excellent in impact resistance, tensile strength, crack resistance, heat resistance and toughness, and has a wide market prospect.