Flame-retardant polyester composition and foaming beads and plate thereof

A technology of flame-retardant polyester and composition, which is applied in the fields of flame-retardant polyester composition and its foamed beads and foamed sheets, and can solve the problems of cell shape and expansion ratio control of polyester foamed materials , Poor flame retardant and antistatic properties of polyester foam beads and sheets, which affect molding applications, etc.

Active Publication Date: 2019-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, existing polyesters and polyester foamed beads and sheets prepared from them have poor flame retardancy and antistatic properties, and after flame-retardant and antistatic modification, the cell morphology and development of polyester foamed materials There is a problem with the control of the foam ratio, which affects the subsequent molding application

Method used

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  • Flame-retardant polyester composition and foaming beads and plate thereof
  • Flame-retardant polyester composition and foaming beads and plate thereof
  • Flame-retardant polyester composition and foaming beads and plate thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] (1) Preparation of flame retardant

[0127] Add 7 parts by weight of triphenylphosphine oxide and 3 parts by weight of cobalt nitrate into ethanol, stir at a rate of 100rpm, and then use microwave to heat the mixture under stirring. The heating power is 50w, the temperature is 40°C, and the reaction time is 4h. The material after microwave heating reaction is carried out supercritical drying, obtains the complex Co(OPPh of the formation of triphenylphosphine oxide and cobalt nitrate 3 ) 2 (NO 3 ) 2 .

[0128] The above-prepared complex Co(OPPh 3 ) 2 (NO 3 ) 2 Mechanically stir and homogenize with magnesium hydroxide at a stirring speed of 10 rpm to obtain a flame retardant.

[0129] (2) Preparation of carbon nanofiber antistatic agent

[0130] Coal tar pitch with a carbon content of more than 80 mol% is used as a carbon source, and the mixed acid of phosphoric acid / nitric acid / hydrochloric acid (volume ratio 1:1:1) is used for grinding pretreatment to obtain a...

Embodiment 2

[0147] (1) The preparation method of the flame retardant and (2) the preparation method of the carbon nanofiber antistatic agent are the same as in Example 1, except that the raw material formula and reaction conditions shown in Table 1 and Table 2 are the same. For example, the flame retardant formed in this embodiment is the complex Ni(OPOt) formed by trioctylphosphine oxide and nickel nitrate 3 ) 2 (NO 3 ) 2 .

[0148] (3) Preparation of polyester base resin PET102

[0149] The polyester is PET (FD520).

[0150] Take by weighing 100 parts by weight of the above-mentioned polyester, then add a lubricant (taking the weight of the above-mentioned polyester as 100 parts by weight, the amount of lubricant added is 0.1 part by weight), and then the mixture is added to a high-speed stirrer and mixed uniformly, and then The mixed material is fed into the feeder of the twin-screw extruder manufactured by Nanjing Coperion Co., Ltd., and the material enters the twin-screw through...

Embodiment 3

[0162] (1) The preparation method of the flame retardant and (2) the preparation method of the carbon nanofiber antistatic agent are the same as in Example 1, except that the raw material formula and reaction conditions shown in Table 1 and Table 2 are the same. For example, the flame retardant formed in this embodiment is the complex Co(OPOt) formed by trioctylphosphine oxide and cobalt nitrate 3 ) 2 (NO 3 ) 2 .

[0163] (3) Preparation of polyester base resin PET103

[0164] PET / PA alloy, PET is FG730, PA is L1250Y, and the weight ratio is 4:6.

[0165] Weigh 100 parts by weight of the above-mentioned PET / PA alloy, then add a lubricant (based on the weight of the above-mentioned PET / PA alloy as 100 parts by weight, the amount of lubricant added is 0.1 parts by weight), and then the mixture is added to a high-speed stirrer and mixed Evenly, then add the mixed material to the feeder of the twin-screw extruder manufactured by Nanjing Coperion Co., Ltd., the material enters...

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Abstract

The invention provides a flame-retardant polyester composition which comprises polyester base resin, a flame retardant and an optional antioxidant, wherein the flame retardant comprises a complex formed by phosphine oxide and a transition metal salt. Foaming beads prepared from the polyester base resin are dense and uniform in foam pores, and the compression strength of a prepared foamed bead molded body is very high; meanwhile, when the polyester composition provided by the invention is used in cooperation with a specific flame retardant and a specific antistatic agent, the flame retardant and the antistatic agent can generate a synergistic effect, and meanwhile, the flame retardancy and the antistatic property are improved. The foaming beads and a plate prepared from the flame-retardantpolyester composition disclosed by the invention have good high-temperature impact resistance, static resistance, flame resistance, simple and convenient process, high closed pore rate and controllable density.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a flame-retardant polyester composition, foamed beads and foamed boards thereof. Background technique [0002] Polyethylene terephthalate (PET) is the first linear thermoplastic polymer to be industrialized by Du Pont Company of the United States. It has excellent physical and mechanical properties in a wide temperature range, excellent friction resistance, excellent aging resistance, fatigue resistance, outstanding electrical insulation, insoluble in most organic solvents and inorganic acids, and processing It has good performance and low production energy consumption, so it has been widely used in plastic packaging bottles, films and synthetic fibers. [0003] As an important engineering plastic, the industrial application and marketization of PET are developing rapidly, and the application fields mainly include industries such as electronics, automobiles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L77/00C08K7/06C08K3/22C08K5/00C08J9/12D01F9/15
Inventor 郭鹏吕明福张师军徐耀辉尹华徐毅辉吕芸
Owner CHINA PETROLEUM & CHEM CORP
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