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Flame-retardant polylactic acid composite material and preparation method thereof

A technology of composite materials and polylactic acid, which is applied in the field of flame-retardant polylactic acid composite materials and its preparation, can solve the problems of flame-retardant and physical properties that need to be improved, a single preparation method, and the inability to prepare polylactic acid composite materials. Promotional value, good flame retardancy and physical properties, and the effect of improving physical properties

Pending Publication Date: 2022-08-02
苏州卓聚新材料科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to propose a flame-retardant polylactic acid composite material and its preparation method, to solve the single preparation method of the polylactic acid composite material in the prior art, without using inorganic fillers and flame retardants on the basis of collocation However, new polylactic acid composite materials cannot be prepared, and the flame retardancy and physical properties need to be improved

Method used

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  • Flame-retardant polylactic acid composite material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example 1

[0029] (1) Weigh 10g of templating agent octadecyltrimethylammonium chloride, 200g of hydrochloric acid, 1.0kg of deionized water, 300g of cerium nitrate hexahydrate, and 180g of silico-molybdic acid, add them to a reaction vessel, and react with ultrasonic at 40°C for 6h , to form solution A;

[0030] (2) The solution A is filtered, washed and dried to obtain solid B.

[0031] (3) The solid B was calcined in a muffle furnace at 760° C. for 12 hours to obtain a high-performance flame retardant filler M1.

Embodiment 1

[0033] (1) Weigh 80 parts of polylactic acid, 18 parts of high-performance flame retardant filler M1, 0.1 part of antioxidant Irganox1010 and mix and stir to obtain a mixture;

[0034] (2) Extruding and granulating the mixture obtained in step (1) from an extruder to obtain a polylactic acid composite material P1.

[0035] Among them, the twin-screw extruder includes six temperature zones arranged in sequence, the temperature of the first zone is 180°C, the temperature of the second zone is 190°C, the temperature of the third zone is 190°C, the temperature of the fourth zone is 190°C, the temperature of the fifth zone is 190°C, and the temperature of the sixth zone is 190°C. The temperature is 190°C, the head temperature is 190°C, and the screw speed is 200r / min.

preparation example 2

[0037] (1) Weigh 30g of templating agent octadecyltrimethylammonium chloride, 300g of hydrochloric acid, 1.6kg of deionized water, 400g of cerium nitrate hexahydrate, 240g of silico-molybdic acid, put them into a reaction vessel, and react with ultrasonic at 60°C for 10h , to form solution A;

[0038] (2) The solution A is filtered, washed and dried to obtain solid B.

[0039] (3) The solid B was calcined in a muffle furnace at 820° C. for 16 hours to obtain a flame-retardant high-performance filler M2.

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Abstract

The invention relates to the technical field of high polymer materials, in particular to a flame-retardant polylactic acid composite material and a preparation method thereof.The flame-retardant polylactic acid composite material is prepared from, by weight, 80-100 parts of polylactic acid, 18-22 parts of flame-retardant filler and 0.1-0.5 part of antioxidant; the flame-retardant filler comprises rare earth oxide loaded silicomolybdic acid. The flame-retardant polylactic acid composite material prepared by the invention has excellent physical properties and flame retardancy, and the material has not been reported so far, which has very important practical significance for expanding the application of the polylactic acid composite material.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant polylactic acid composite material and a preparation method thereof. Background technique [0002] Polylactic acid, also known as polylactide, is a polyester polymer obtained by polymerizing lactic acid as the main raw material. It is a new type of biodegradable material. In some specific application fields, the flame retardant properties and physical properties of polylactic acid are required to be high, and ordinary polylactic acid materials can no longer meet such requirements, which limits the application of polylactic acid composite materials in some specific fields. [0003] The existing disclosed polylactic acid composite materials mostly use inorganic fillers in their components. Due to the characteristics of the inorganic fillers themselves, the low-temperature impact performance of the toughened system is still unsatisfactory, and cannot meet...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08K9/12C08K3/34C08K3/22
CPCC08K9/12C08K3/34C08K3/22C08K2003/2213C08L2205/24C08L2201/02C08L67/04
Inventor 李本科黄夫俭
Owner 苏州卓聚新材料科技有限公司
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