Color changeable indicator particles having a meltable, particulate organic core, and at least one color changeable indicator coated on the particulate organic core. Color changeable indicator particles can be incorporated into composite polymer materials while maintaining the efficacy and stability of the indicator. The indicators provide simple, reliable, and cost effective detection means for detecting ammonia and carbon dioxide, and may find use in applications such as food packaging and medical applications.

The present disclosure relates to a process for producing homogeneous solutions comprising dissolved polyacrylonitrile-based polymer, and a system suitable therefor. The homogeneous polymer solutions produced by the process described herein may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.

The present disclosure describes nanocellulose-based nanomaterials and their incorporation process into composites. Specifically, the present disclosure comprises nanocellulose functionalization processes, promoting better dispersion and homogenization of the nanomaterial in composites, as well as improving physicochemical and mechanical properties. The present disclosure lies in the fields of Chemistry and Materials Engineering.

Disclosed herein are amine containing copolymer compositions based on free radical and controlled radical polymerization of monomer compositions including an amine-derivatized alpha-methyl styrene (ADAMS) monomer according to structure (I):

##STR00001##

with k, R, R.sub.1, and R.sub.2 defined herein with one or more monomers selected from the group consisting of optionally substituted acrylates, methacrylates, acrylamides, methacrylamides, acrylonitriles, methacrylonitriles, vinyl ethers, N-vinyl amides, or combinations thereof. Further disclosed herein are methods of making and methods for using such copolymer compositions.

Provided are a method for preparing an organic/inorganic hybrid thermally conductive and insulating two-component adhesive and a method for using the same. The purpose is to solve the problem that thermally conductive adhesives in the prior art cannot meet the requirements of thermal conductivity, good bonding performance and insulation characteristics at the same time. The method includes: 1. preparing an organic phase aluminum dihydrogen phosphate; 2. treating a diamond thermally conductive filler; 3. modifying polyurethane compatible with aluminum dihydrogen phosphate; and 4. preparing an organic/inorganic hybrid insulating two-component adhesive. The use method includes: coating the adhesive onto a surface of a material to be bonded, and bonding; and subjecting a resulting member to be bonded to defoaming, heating, and holding.

Provided are a method for preparing an organic/inorganic hybrid thermally conductive and insulating two-component adhesive and a method for using the same. The purpose is to solve the problem that thermally conductive adhesives in the prior art cannot meet the requirements of thermal conductivity, good bonding performance and insulation characteristics at the same time. The method includes: 1. preparing an organic phase aluminum dihydrogen phosphate; 2. treating a diamond thermally conductive filler; 3. modifying polyurethane compatible with aluminum dihydrogen phosphate; and 4. preparing an organic/inorganic hybrid insulating two-component adhesive. The use method includes: coating the adhesive onto a surface of a material to be bonded, and bonding; and subjecting a resulting member to be bonded to defoaming, heating, and holding.

A rubber material that allows for obtaining a rubber member that is excellent in mechanical properties and low loss property by utilizing rubber powder. A rubber material includes rubber powder (A) dispersed in a rubber base material (B), wherein the rubber powder (A) includes an unvulcanized rubber layer (a2) disposed on the surface of a vulcanized rubber powder (a1), and the unvulcanized rubber layer (a2) includes a crosslinking agent.

A rubber material that allows for obtaining a rubber member that is excellent in mechanical properties and low loss property by utilizing rubber powder. A rubber material includes rubber powder (A) dispersed in a rubber base material (B), wherein the rubber powder (A) includes an unvulcanized rubber layer (a2) disposed on the surface of a vulcanized rubber powder (a1), and the unvulcanized rubber layer (a2) includes a crosslinking agent.