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Antibacterial flame-retardant PET composite material and preparation method thereof

A technology of composite materials and antibacterial agents, which is applied in the field of antibacterial and flame-retardant PET composite materials and its preparation, can solve the problems of unsatisfactory antibacterial performance and flame-retardant performance of PET composite materials, etc., and achieve excellent antibacterial performance, great promotion value, Effect of improving antibacterial properties

Inactive Publication Date: 2019-02-01
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of antibacterial and flame-retardant PET composite material and its preparation method, to solve the problem that PET composite material can not meet the needs of some aspects in antibacterial performance and flame-retardant performance

Method used

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  • Antibacterial flame-retardant PET composite material and preparation method thereof
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  • Antibacterial flame-retardant PET composite material and preparation method thereof

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preparation example Construction

[0034] The preparation method of described antibacterial agent, comprises the following steps:

[0035] (1) Weigh a certain amount of kaolin, deionized water, chitosan, and nitric acid solution, add them to the reaction vessel in turn, stir and react at room temperature for 10-12h to form solution A; kaolin, deionized water, chitosan , The mass ratio of the nitric acid solution is (60-80): (180-240): (20-30): (28-36).

[0036] (2) Weigh a certain amount of Cu(NO3) 2 solution, fructose, and solution A, they were sequentially added to the reaction vessel, and stirred and reacted for 8-10 hours in a water bath environment at 60-80°C to obtain solution B; Cu(NO3) 2 The mass ratio of solution, fructose and solution A is (20-30):(30-40):(100-120).

[0037] (3) Solution B is filtered, washed, dried, ground, and passed through a 500-mesh sieve to obtain the copper-loaded kaolin antibacterial agent.

[0038] Described flame retardant is Mg(OH) 2 .

[0039] The synergistic flame re...

Embodiment 1

[0046] (1) Weigh 80 parts of PET, 2 parts of antibacterial agent, 18 parts of Mg(OH) 2 , 2 parts of zinc hydroxystannate, 2 parts of nanometer TiO2, 0.1 part of Irganox168 are mixed and stirred evenly to obtain a mixture;

[0047] (2) Extruding and granulating the mixture obtained in step (1) to obtain PET composite material P1.

[0048] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 240°C, the temperature of the second zone is 280°C, the temperature of the third zone is 280°C, the temperature of the fourth zone is 280°C, the temperature of the fifth zone is 280°C, and the temperature of the sixth zone is 280°C. The head temperature is 280°C, and the screw speed is 200r / min.

Embodiment 2

[0050] (1) Weigh 100 parts of PET, 6 parts of antibacterial agent, 24 parts of Mg(OH) 2, 3 parts of zinc hydroxystannate, 3 parts of nano-TiO2, 0.1 part of Irganox168, 0.2 part of Irganox1010, 0.2 part of Irganox1330 are mixed and stirred evenly to obtain a mixture;

[0051] (2) extruding and granulating the mixture obtained in the step (1) to obtain PET composite material P2.

[0052] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 260°C, the temperature of the second zone is 300°C, the temperature of the third zone is 300°C, the temperature of the fourth zone is 300°C, the temperature of the fifth zone is 300°C, and the temperature of the sixth zone is 300°C. The head temperature is 300°C, and the screw speed is 280r / min.

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Abstract

The invention relates to an antibacterial flame-retardant PET composite material and a preparation method thereof. The material consists of the following components in parts by weight: 80 parts-100 parts of PET; 2 parts-6 parts of an antibacterial agent; 18 parts-24 parts of a flame retardant; 4 parts-6 parts of a synergistic flame retardant; and 0.1 parts-0.5 parts of an anti-oxidant; wherein theantibacterial agent is a copper-loaded kaolin antibacterial agent. The technical scheme firstly uses a mixture of nano TiO2 and zinc hydroxystannate as the synergistic flame retardant, which improvesthe flame retardant performance of the PET composite material; The PET composite material prepared by the technical scheme has excellent flame retardant performance and antibacterial property, and makes up for the deficiency of the existing products, and has great popularization value.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an antibacterial and flame-retardant PET composite material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) has the advantages of light weight, non-toxic, odorless, good chemical stability, insoluble in common solvents at room temperature, and low water absorption. Although the overall performance of PET is excellent, the antibacterial performance and flame retardancy of PS are average, which greatly limits the application range of PET composite materials. [0003] In view of this reason, this technical solution innovatively uses a new type of antibacterial agent to improve the antibacterial performance of PET, and at the same time uses a flame retardant and a synergistic flame retardant to improve the flame retardant performance of PET, and finally prepares a kind of antibacterial performance and antibacterial PET compo...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/06C08K9/12C08K3/08C08K3/22C08K3/24
Inventor 刘凯孙启林马琼
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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