4results about How to "Does not affect flame retardancy" patented technology

The invention discloses a brominated flame-retardant polyamide composition capable of improving air trapping. The brominated flame-retardant polyamide composition comprises the following components in percentage by mass: 30.0-80.0 wt% of aliphatic polyamide; 10 to 30.0 wt% of a brominated flame retardant; 3.0 to 10.0 wt% of a flame retardant synergist; 0.3 to 5.0 wt% of aromatic zinc carboxylate; or also comprises the following components: 5.0-50.0 wt% of a reinforcing agent; the sum of all the components is 100 wt%, and the composite material is prepared by melt blending and processing through a single-screw or double-screw extruder. According to the brominated flame-retardant polyamide composition disclosed by the invention, the defect that the fire resistance of a thermoplastic composition is influenced by an acid remover and zinc oxide is avoided by utilizing the aromatic zinc carboxylate, the air trapping phenomenon can be obviously improved, and the brominated flame-retardant polyamide composition has stable flame retardance and excellent mechanical property.

The application discloses a halogen-free flame-retardant long-chain nylon composite material and a preparation method thereof, and belongs to the technical field of nylon flame retardation, and overcomes the defects that high flame-retardant performance and low smoke density of long-chain nylon resin are difficult to be considered in the prior art.The halogen-free flame-retardant long-chain nylon composite material is prepared from the following raw materials in parts by mass: long-chain nylon resin: 65-92 parts, MCA flame retardant: 5-25 parts, the MCA flame retardant being melamine cyanurate, non-benzene ring phosphorus-containing flame retardant: 1-10 parts, and auxiliary agent: 0-5 parts.The halogen-free flame-retardant long-chain nylon composite material maintains a low smoke density by means of the synergistic effect of the non-benzene ring phosphorus-containing flame retardant and the MCA flame retardant to improve the flame-retardant performance.

This invention discloses a flame-retardant, breakdown-resistant capacitor base film and its preparation method. The raw materials, by weight, include: 100 parts polypropylene; 3.5-8.5 parts compatibilizer; 14-25 parts flame-retardant dielectric modifier; 0.3-1 parts antioxidant; and 0.5-1.8 parts nucleating agent. The flame-retardant dielectric modifier is a composite microcapsule obtained by coating the core material with nano-magnesium hydroxide and silica-modified polydopamine. By adding a flame-retardant dielectric modifier to the polypropylene system, this invention imparts excellent flame-retardant properties to the prepared polypropylene capacitor base film, while also improving its mechanical strength, increasing the dielectric constant of the base film, and enhancing its breakdown resistance, thus improving its overall performance.

The invention discloses a high-impact flame-retardant reinforced polypropylene composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. Comprising the following raw materials in parts by mass: 25-75 parts of polypropylene, 25-30 parts of a halogen-free flame retardant, 5-25 parts of mineral filling powder, 2-6 parts of a compatilizer, 1-10 parts of a flexibilizer, a lubricant and an antioxidant, the polypropylene composite material has the characteristics of stable quality, environmental friendliness, impact resistance, high flame retardance and excellent mechanical property, and has very high practicability in the fields of household appliances, electronic appliances, building materials and the like.