47results about How to "Maintain flame retardancy" patented technology

To provide high energy density, good cycle properties and rate characteristics and long-term safety of a lithium ion battery containing at least an ionic liquid and a lithium salt. The above problems are solved by suppressing reduction and decomposition of the ionic liquid on an anode by using a graphite coated with an amorphous carbon or onto which an amorphous carbon is deposited as an anode active material.

A resin composition containing a cyclic epoxy-modified silicone compound (A) represented by formula (1), a cyanic acid ester compound (B) and / or a phenol resin (C) and an inorganic filler (D):wherein Ra each independently represent an organic group having an epoxy group; Rb each independently represent a substituted or unsubstituted monovalent hydrocarbon group; x represents an integer of 0 to 2; and y represents an integer of 1 to 6; and the siloxane unit marked with x and the siloxane unit marked with y are arranged mutually at random.

The invention provides a polyamide-modified melamine-formaldehyde precondensate, which belongs to the technical field of melamine-formaldehyde foam materials. The precondensed polymer is prepared by adjusting the pH value of the paraformaldehyde solution and then adding melamine, polyamide and modifier, monitoring the reaction process at the cloud point, stopping heating and cooling down rapidly after reaching the corresponding cloud point. The present invention also provides a polyamide-modified melamine-formaldehyde foam material, comprising 100 parts of polyamide-modified melamine-formaldehyde precondensate, 0.5-10 parts of surfactant, 2-15 parts of catalyst, and foaming 2-20 parts of agent, 0-5 parts of auxiliary agent and 0-30 parts of water. The invention uses polyamide to modify the melamine-formaldehyde foam material, which not only maintains the flame retardancy and thermal stability of the material, but also improves the tear toughness of the melamine-formaldehyde foam. The modification of the melamine-formaldehyde resin polycondensate by polyamide can improve the fluidity of the melamine-formaldehyde resin precondensate and reduce the difficulty of industrial production.

The invention discloses an aging-resistant PPO-PPS plastic alloy, which is composed of the following components in weight part: 100 parts of PPO, 40-60 parts of PPS, 4-8 parts of compatibilizer and 0.5-1.5 parts of age resister. The aging-resistant PPO-PPS plastic alloy disclosed by the invention is an alloy material with excellent overall performances, mostly retains the advantages of PPS in respects of mechanical property, thermal tolerance, flame retardance and the like, and integrates excellent electrical performances of PPO. The aging-resistant PPO-PPS plastic alloy is suitable for fields of electric appliances such as thermotolerant breaker frameworks and electric appliance connectors.

The invention provides a colored PEN / PET concentric sheath-core composite fiber. The sheath layer comprises a colored master batch and PEN, wherein the weight ratio of the colored master batch to the PEN is 5-15:95-85, and the colored master batch comprises colored powder and PEN, and the weight ratio of the colored powder to the PEN is 25-35:75-65. The core layer comprises PET. The weight ratio of the sheath layer components to the core layer component is 15-25:85-75. The defect that PEN fiber forming and dyeing are difficult is overcome, and the fiber keeps the unique chemical stability, gas barrier property, flame retardance, heat resistance and the like of the PEN fiber. The PET economical efficiency and favorable PEN fiber properties are organically combined, the PEN using cost is greatly reduced, the application range of the PEN in the fiber field is enlarged, and meanwhile the application range of the PET fiber in the industrial field can be broadened further.