摘要:
The present disclosure belongs to the technical field of polymer rubber composites, and specifically relates to a rubber sealing gasket with excellent compression performance and low-temperature performance, and a preparation method and use thereof. The rubber sealing gasket is prepared from the following raw materials in parts by mass: a hydrogenated nitrile butadiene rubber (HNBR): 100 parts; a processing aid: 12.3 parts to 13.7 parts; a reinforcing filler: 45 parts to 65 parts; a vulcanizing agent: 4.8 parts to 5.2 parts; and a co-crosslinking agent: 4.8 parts to 5.2 parts. The rubber sealing gasket prepared by the present disclosure has excellent compression performance and low-temperature performance, meets the performance requirements of rubber sealing gaskets for automobile air-conditioning systems, and can be used in sealing components of automobile air-conditioning systems.
摘要:
Improved casein-based films are produced by adjusting the pH of a film-production suspension. The film-production suspension may contain a casein source, a plasticizer, and optionally a strengthening additive. The adjustment of the pH may be accomplished by the addition of an alkaline additive, such as a base, to achieve a desired pH value. The improved casein-based films have improved physical properties as compared to those produced without a pH-adjusted film-production suspension at least in part due to the chemical and structural changes imparted by the change in pH.
摘要:
Coating compositions containing a bituminous material and an effective amount of a methyl/ethyl ester diluent for coating bulk solids are disclosed. The coating compositions of the present invention are particularly suited to reduce dust formation and cake formation in fertilizer and coal.
摘要:
The present invention relates to a plastic composition based on biodegradable and bio-based polyesters, in particular for the preparation of plastic films.
摘要:
Coating compositions containing an oxidized oil and an effective amount of a diluent selected from one of: the group of methyl and ethyl esters of fatty acids, oils and combinations thereof; the group of glycerol and polyglycerol esters of fatty acids, oils, and combinations thereof; and light petroleum oil with a viscosity from about 1 cP to about 100 cP at 100null F., wherein the coating composition has a viscosity of from about 3 cP to about 5000 cP at 140null F., and wherein the coating composition is effective for reducing dust formation and cake formation in the coated free-flowing dry material.. The coating compositions and associated methods of the present invention are particularly suited to reduce dust formation and cake formation in free-flowing dry materials.
摘要:
Coating compositions containing a bituminous material and an effective amount of a methyl/ethyl ester diluent for coating bulk solids are disclosed. The coating compositions of the present invention are particularly suited to reduce dust formation and cake formation in fertilizer and coal.
摘要:
The invention includes a compositon of matter comprising a heavy oil having dispersed therein surface modified solid wherein said surface modified solids comprise solids having adsorbed thereon air oxidized polar hydrocarbons from said heavy oil and wherein said surface modified solids have a diameter of about 10 microns or less and a method for preparing the same.
摘要:
A cellulose ester composition is provided comprising at least one cellulose ester, at least one polymeric aliphatic polyester, at least one impact modifier, and at least one monomeric plasticizer. Processes for producing the cellulose ester compositions as well as articles made using these compositions, such as eyeglass or sunglass frames and/or lenses, are also provided.
摘要:
Described herein are impregnated products comprising a cellulosic substrate having internal voids; and a reaction product of a composition comprising: an acrylate monomer; a biobased component; and an acrylate additive; wherein the cellulosic substrate is impregnated with said composition. Methods of making and using the products are also described.