A foamable polymeric mixture is provided that includes a polymer composition and at least one blowing agent. The blowing agent may comprise any blowing agents known not to deplete the ozone or increase the prevalence of global warming, such as CO.sub.2, HFO, HFC and mixtures thereof. The foamable polymeric mixture may further includes at least one processing aid comprising an organic phase changing material. The inventive foamable mixture is capable of processing at a pressure range of 800 to 1200 psi (5.5 to 8.3 MPa).

A method of fabricating a composite material can include adding particulate material to an elastomeric material. The particulate material can include expanded graphite particulates and/or graphite nanoplatelet particulates. The particulate material can be diffused within the elastomeric material to uniformly disperse the particulate material within the elastomeric material. The elastomeric material having the particulate material dispersed therein can then be cured after the diffusing to form a structure comprised of the composite material, the composite material including the elastomeric material and the particulate material. In some embodiments, surfaces of the particulate material can be modified to include carboxyl and hydroxyl groups before the particulate material is added to the elastomeric material to facilitate improved bonding of the particulate material. In some embodiments, the formed structure can be configured as or for use in a gasket, seal, vibration dampening device or sound reduction device.

The present application relates to a supercritical fluid injection foaming polylactide foam material and a preparation method therefor. The method includes: first obtaining a surface-modified cellulose nanofiber aqueous solution; then melting and blending the cellulose nanofiber aqueous solution and a polylactide twice; passing same through extrusion, cooling under water, and granulation so as to obtain a polylactide/cellulose nanofiber composite material; then plasticizing and melting the polylactide/cellulose nanofiber composite material in a microporous foaming injection molding machine; uniformly mixing same with a supercritical fluid foaming agent in the injection molding machine; injecting same into a mold cavity; and subjecting the resultant to post-treatment so as to obtain a polylactide foam material. The polylactide foam material has a sandwich structure, in which two outer surface layers are solid layers that do not contain any foam, and the sandwiched layer is a foam layer having a cellular structure.

This document presents algae-derived antimicrobial plastic substrates, and a method of making the same. The plastic is preferably synthetic, but can also be formed as a bioplastic (e.g., polylactic acid). In various implementations, an algae-derived antimicrobial plastic substrate can be made to have similar properties and characteristics of nylon, nylon-6, nylon 6-6 polymer, and/or the like, and yet contain antimicrobial substances. Any of various species of red algae, brown algae, and brown seaweed (marine microalgae and/or macroalgae) are known to contain a high level of sulfated polysaccharides with inherent antimicrobial properties, and can be used as described herein.

The present disclosure relates to an expanded foam solution for forming a thermosetting expanded foam having excellent flame retardancy produced using the same. According to the present disclosure, nanoclay is mixed with a polyol-based compound using ultrasonic waves, an isocyanate-based compound is added, and a trimerization catalyst or an isocyanurate compound is mixed with the polyol-based compound so that an isocyanurate structure is formed.

The present invention provides a rubber composition that may improve fracture resistance of the resulting tire while maintaining good drainage performance, and a tire using the same. The rubber composition includes: a rubber component; and a fiber made of a hydrophilic resin. The fiber is formed with a coating layer on its surface. The coating layer is made of a resin having affinity for the rubber component.

A High Internal Phase Emulsion (HIPE) foam having cellulose nanoparticles.

A material includes from 40 to 60% by volume of polymer matrix relative to the total volume of the material, and from 40 to 60% by volume, relative to the total volume of the material, of expanded thermoplastic microspheres. The membrane is composed of block polymers or copolymers. The microspheres are coated with a layer composed of nanoparticles of silicon dioxide and/or of titanium dioxide. A method for manufacturing is provided for making the material and the use of this material is provided for ensuring the floatability and/or for thermally insulating all or part of a submarine pipeline.

Pressure sensing layers, devices comprising same, pressure sensing monitors and composite materials comprising a) a porous matrix material comprising a siloxane polymer, comprising a closed porosity volume fraction, and, optionally, an open porosity volume fraction, and b) a conductive or semiconductive filler substantially present in the closed porosity volume fraction of the porous matrix material a), and films, coated substrates and multilayer structures comprising the composite material and the use thereof in pressure sensing devices.

Provided are an antistatic and flame-retardant rutile titanium dioxide (TiO.sub.2)-loaded antimony tin oxide (ATO)/expanded polystyrene (EPS) composite, and a preparation method and use thereof. The antistatic and flame-retardant rutile TiO.sub.2-loaded ATO (TiO.sub.2@ATO)/EPS composite includes EPS and rutile TiO.sub.2@ATO doped in the EPS; where the antistatic and flame-retardant rutile TiO.sub.2@ATO/EPS composite is doped with 0.5 wt. % to 2 wt. % of the rutile TiO.sub.2@ATO based on a mass of a styrene monomer.