A masterbatch composition suitable for use as a flame retardant in extruded polymer foams, and process for manufacturing the same, and extruded foams containing same; the composition comprising: (a) 20 to 40 parts by weight base resin comprising styrene homopolymer or copolymer; (b) 1 to 16 parts by weight acid scavenger comprising an epoxy-based compound; (c) 2 to 6 parts by weight antioxidant comprising an alkyl or aryl phosphite; and (d) 45 to 60 parts by weight flame retardant comprising a non-hexabromocyclododecane (HBCD) brominated polymer or copolymer, wherein the amounts of (a), (b), (c), and (d) total 100 parts by weight; and (e) 0.6 to 10 parts by weight of pH moderator, based on 100 parts of (a) base resin plus (e) water soluble pH moderator.

A high-strength high-modulus graphene/nylon-6 fiber and a preparation method thereof are provided. The fiber is obtained through processing modified graphene and caprolactam with in situ polymerization and high-speed melt spinning. A graphene/nylon-6 composite is provided, which is obtained through compositing the modified graphene, the caprolactam and an additive. Based on the composite, a graphene/nylon-6 fabric with a permanent far-infrared healthcare function and a graphene/nylon-6 fabric with an ultraviolet protective property are provided, whose far-infrared property and ultraviolet protective property will not be attenuated due to an increase of fabric washing times, having a great market potential.

The present invention provides a thermal insulation composition and a preparation method and application. The thermal insulation composition is composed of aerogel material and organic resin; the composite mass ratio of the aerogel material to the organic resin is 5 wt %:95 wt % to 50 wt %:50 wt %; the porosity of the aerogel material is greater than 95%, the pore diameter of the aerogel material is less than or equal to 100 nm, the particle size of each particle of aerogel material is 5 nm to 20 nm, and the organic resin is filled in the pores of the aerogel material. The thermal insulation module component prepared from the thermal insulation composition has mechanical strength and thermal conductivity at room temperature, and if the battery goes into thermal runaway, the material becomes a heat-insulating material, blocking the heat transfer between battery cells, greatly improving the safety performance of the battery.

A method for producing aluminum oxide is provided. The method uses an aluminum-oxide-forming agent containing a partially hydrolyzed aluminum alkyl compound containing an aluminum trialkyl or a mixture thereof, and a solvent. It is thus possible to produce an aluminum oxide thin film or aluminum oxide particles on or in a substrate that is not resistant to polar solvents. A method of producing a polyolefin-based polymer nanocomposite containing zinc oxide particles or aluminum oxide particles using a solution containing a partially hydrolyzed zinc alkyl or a solution containing a partially hydrolyzed aluminum alkyl is also provided. The polyolefin-based polymer nanocomposite contains a polyolefin substrate and zinc oxide particles or aluminum oxide particles, and does not contain a dispersant. The zinc oxide particles or aluminum oxide particles have an average particle size of less than 100 nm.

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus-containing benzofuranone compounds and iii) one or more hindered phenolic antioxidants are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture.

The present disclosure describes a composite material and a method for making the composite material. The method includes mixing a copolymer binder with a thermoplastic biopolyester polymer (TBP) at a mixing temperature of 80-280° C. to create a polymer mixture; and mixing pyrolysized organic matter and an organic filler material with the polymer mixture to create the composite material. In an embodiment, the source of the pyrolysized organic matter is post-consumer food waste, and the mixing is performed by a shear mixer that is operated at 40-100 revolutions per minute (RPM). The composite material may comprise by weight at least 35% of a combination of the pyrolysized organic matter and the organic filler material.

Continuous compounding systems include a feeding section and a compounding section. Method for compounding or mixing solid matter and liquid matter include providing a continuous compounding system, adding matter to the continuous compounding system, and mixing or compounding the matter.

A method for forming a graphene-reinforced polymer matrix composite is disclosed. The method includes distributing graphite microparticles into a molten thermoplastic polymer phase; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase exfoliates the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along the c-axis direction.

The present invention relates to a moulding compound which contains at least 50 wt. % of a semicrystalline poly amide component and the moulding compound contains a filler which imparts conductivity to the moulding compound, wherein the moulding compound does not have a crystallite melting point (Tm) below 50° C. and the polyamide component contains components A and B, A) PA homopolymer of the type PA X.Y or PAZ, where X is a diamine radical (DA), Y is a dicarboxyl radical (DC), and Z is an alpha-omega amino acid radical; B) PA copolymer of the type PA X′.Y′, where X is a diamine radical (DA′) and Y′ is a dicarboxyl radical (DC′); wherein a portion of the diamine radical (DA′) is replaced by a polyether having at least two amino termini or at least two hydroxy termini; wherein the proportion of polyether in the sum of components A and Bis between 0.5 and 15 wt. % and wherein the proportion of filler is 2.5 to 6 wt. % based on the total mass of the poly amide component and the filler. The invention also relates to a method for producing same and using same, and to hollow profiles comprising same.

A method for preparing a polymer nanocomposite is provided with steps of (1) dissolving polyvinyl chloride; (2) dissolving polyethylene; (3) dissolving a polyvinyl chloride-polyethylene block copolymer; (4) adding a surfactant into a mixed solution obtained from the above-mentioned steps; (5) adding a light permeable material into the mixed solution; (6) adding an enforcement material into the mixed solution; (7) performing an ultrasonic mixing to the mixed solution; and (8) performing a rotary evaporation to the mixed solution.