Flame-retardant polyester composition for preparing industrial polyester fibre

Abstract

The invention relates to a flame-retardant polyester compound used for manufacturing industrial polyester fiber which includes the components as follows: a) the polyester of a reaction type flame-retardant which comprises a structural formula as I and is formed by the copolycondensation of terephthalic acid, glycol, pentaerythritol and the flame-retardant. In the formula I, R refers to the hydroxyalkyl or the car boxyalkyl of C1 to C4. The content of the pentaerythritol in the polyester is 0.01 to 0.10wt percent; the content of the flame-retardant in the polyester is 2 to 10wt percent; the characteristic viscidity of the polyester is 0.60 to 0.75 dl / g; b) a nucleating agent which relates to the grain of Nano-Kaolin with an average grain diameter of 200 to 600nm. The nucleating agent is uniformly stored in the polyester compound and the content of the nucleating agent is 0.06 to 1.0wt percent. The departure on the thermal transformation performance existed between the flame-retardant polyester compound and the normal polyester is remarkably reduced; the manufacturing industrial polyester fiber can be produced by adopting the normal polyester fiber manufacture device and technique.

Description

technical field [0001] The invention relates to a flame-retardant polyester composition, in particular to a flame-retardant polyester composition containing a phosphorus-based organic reactive flame retardant for manufacturing industrial polyester fibers. Background technique [0002] Polyester with flame-retardant properties has developed rapidly in recent years. The application fields of products involve civil and industrial applications. Among them, flame-retardant polyester fibers are the most widely used, especially industrial polyester fibers whose consumption is growing continuously. The flame retardancy has gradually become its basic performance requirement. The flame retardants used in flame retardant polyester mainly include three types: additive type, copolymerization reaction type and finishing type. Therefore, the flame retardant performance is more stable and long-lasting. Phosphorus-based reactive flame retardants have excellent flame retardant properties an...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a kind of flame-retardant polyester composition used for manufacturing industrial polyester fiber, and the technical problem it aims to solve is to reduce the deviation between flame-retardant polyester and conventional polyester in thermal transformation performance, so as to overcome the existing There are technical defects, and at the same time, the technical measures required to solve the above technical problems will not have adverse effects on the manufacture of flame-retardant polyester fibers or the performance of the products produced

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