Disclosed are a scrub sponge and a preparation method therefor. The method for preparing the scrub sponge includes the operations of: obtaining a first mixture by stirring alkalizer, porogen, konjac powder, scrub granule and water, and filling the first mixture into a mold to form a preform, where the preform includes a first sponge layer; forming a parison by sequentially cooking and freezing the preform; and sequentially unfreezing, dehydrating and drying the parison to obtain the scrub sponge.

Disclosed are a scrub sponge and a preparation method therefor. The method for preparing the scrub sponge includes the operations of: obtaining a first mixture by stirring alkalizer, porogen, konjac powder, scrub granule and water, and filling the first mixture into a mold to form a preform, where the preform includes a first sponge layer; forming a parison by sequentially cooking and freezing the preform; and sequentially unfreezing, dehydrating and drying the parison to obtain the scrub sponge.

An ultra-high molecular weight, ultra-fine particle size polyethylene has a viscosity average molecular weight (Mv) greater than 1×10.sup.6. The polyethylene is spherical or are sphere-like particles having a mean particle size of 10-100 μm, having a standard deviation of 2-15 μm and a bulk density of 0.1-0.3 g/mL. Using the polyethylene as a basic polyethylene, a grafted polyethylene can be obtained by means of a solid-phase grafting method; and a glass fiber-reinforced polyethylene composition comprising the polyethylene and glass fibers, and a sheet or pipe prepared therefrom; a solubilized ultra-high molecular weight, ultra-fine particle size polyethylene; and a fiber and a film prepared from the solubilized ultra-high molecular weight, ultra-fine particle size polyethylene may also be obtained. The method has simple steps, is easy to control, has a relatively low cost and a high repeatability, and can realize industrialisation.

An ultra-high molecular weight, ultra-fine particle size polyethylene has a viscosity average molecular weight (Mv) greater than 1×10.sup.6. The polyethylene is spherical or are sphere-like particles having a mean particle size of 10-100 μm, having a standard deviation of 2-15 μm and a bulk density of 0.1-0.3 g/mL. Using the polyethylene as a basic polyethylene, a grafted polyethylene can be obtained by means of a solid-phase grafting method; and a glass fiber-reinforced polyethylene composition comprising the polyethylene and glass fibers, and a sheet or pipe prepared therefrom; a solubilized ultra-high molecular weight, ultra-fine particle size polyethylene; and a fiber and a film prepared from the solubilized ultra-high molecular weight, ultra-fine particle size polyethylene may also be obtained. The method has simple steps, is easy to control, has a relatively low cost and a high repeatability, and can realize industrialisation.

A fiber reinforced thermoplastic resin molded article contains inorganic fibers (A), organic fibers (B), and a thermoplastic resin (C), the fiber reinforced thermoplastic resin molded article containing 5 to 45 parts by weight of the inorganic fibers (A), 1 to 45 parts by weight of the organic fibers (B), and 10 to 94 parts by weight of the thermoplastic resin (C), based on 100 parts by weight of the total of the inorganic fibers (A), the organic fibers (B), and the thermoplastic resin (C), the inorganic fibers (A) in the fiber reinforced thermoplastic resin molded article having a weight average fiber length (L.sub.wa) of 0.01 mm or more and 3 mm or less, the organic fibers (B) having a weight average fiber length (L.sub.wb) of more than 4 mm and 20 mm or less.

A method for producing a molding compound having improved surface properties is provided. The method relates to, in particular, a molding compound comprising a polycarbonate and at least one reinforcing filler, preferably selected from the group including titanium dioxide (TiO.sub.2), talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2), dolomite CaMg[CO.sub.3].sub.2, kaolinite Al.sub.4[(OH).sub.8|Si.sub.4O.sub.10] and wollastonite Ca.sub.3[Si.sub.3O.sub.9], preferably selected from the group including titanium dioxide (TiO.sub.2) and talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2). The total amount of reinforcing filler is 3 to 20 wt. %, preferably 4.5 to 15 wt. %, each relative to the total mass of the molding compound, the molding compound having improved properties being produced using at least one master batch produced according to the method.

A method for producing a molding compound having improved surface properties is provided. The method relates to, in particular, a molding compound comprising a polycarbonate and at least one reinforcing filler, preferably selected from the group including titanium dioxide (TiO.sub.2), talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2), dolomite CaMg[CO.sub.3].sub.2, kaolinite Al.sub.4[(OH).sub.8|Si.sub.4O.sub.10] and wollastonite Ca.sub.3[Si.sub.3O.sub.9], preferably selected from the group including titanium dioxide (TiO.sub.2) and talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2). The total amount of reinforcing filler is 3 to 20 wt. %, preferably 4.5 to 15 wt. %, each relative to the total mass of the molding compound, the molding compound having improved properties being produced using at least one master batch produced according to the method.

Provided are a biodegradable sheet with antiviral properties, a manufacturing method thereof, and the use thereof. The biodegradable sheet comprises: a biodegradable polymer resin consisting of a polylactic acid-based polymer; or a composite degradable polymer resin comprising of a biodegradable resin and a petrochemical resin; and particles of an inorganic antiviral agent or aggregated composite particles of at least two inorganic antiviral agents incorporated into the biodegradable sheet so that the inorganic antiviral agent can be dispersed with a particle size of 100 to 900 nm.

Provided are a biodegradable sheet with antiviral properties, a manufacturing method thereof, and the use thereof. The biodegradable sheet comprises: a biodegradable polymer resin consisting of a polylactic acid-based polymer; or a composite degradable polymer resin comprising of a biodegradable resin and a petrochemical resin; and particles of an inorganic antiviral agent or aggregated composite particles of at least two inorganic antiviral agents incorporated into the biodegradable sheet so that the inorganic antiviral agent can be dispersed with a particle size of 100 to 900 nm.

The present invention relates to heterophasic polypropylene compositions comprising a propylene homo- or copolymer forming a crystalline fraction as a matrix and an amorphous propylene ethylene elastomer as a soluble fraction dispersed in said matrix. The heterophasic polypropylene compositions further comprise an elastomeric ethylene/alpha-olefin random copolymer. The heterophasic polypropylene compositions have a well-balanced relation between stiffness and impact strength, low volatile and semi-volatile emissions and good processability.