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A kind of preparation method of liquid crystal ionomer intercalation montmorillonite composite material

A technology of intercalation montmorillonite and composite materials, which is applied in the field of preparation of liquid crystal ionomer intercalation montmorillonite composite materials, can solve the problems that the modification effect is difficult to achieve ideal, and the compatibility between polylactic acid and nucleating agent is poor. , to achieve the effect of improving thermal decomposition performance, improving compatibility and enhancing heat resistance

Active Publication Date: 2020-03-17
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility between polylactic acid and nucleating agent is poor, and the modification effect is difficult to achieve ideal

Method used

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  • A kind of preparation method of liquid crystal ionomer intercalation montmorillonite composite material
  • A kind of preparation method of liquid crystal ionomer intercalation montmorillonite composite material
  • A kind of preparation method of liquid crystal ionomer intercalation montmorillonite composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 100g of montmorillonite into a three-necked flask, add 300ml of ethanol solvent, and swell for 1 hour in a water bath at 75°C with a stirring speed of 600r / min; Ammonium bromide was added to the above reaction system, and reacted under the above reaction conditions for 6 hours; after the reaction was completed, stop heating and stirring, and after cooling to room temperature, the suspension was filtered with suction and washed several times with deionized water until it was washed with 0.1 mol / L AgNO 3 The solution was tested for the presence of halogen ions, and the resulting precipitate was transferred to a watch glass, dried in an oven at 75°C for 12 hours, ground, and passed through a 400-mesh sieve to obtain 80 g of organic montmorillonite.

[0024] Prepare the water phase: take 5.0g of organic montmorillonite, 0.3g of 4,4'dihydroxy α,α'dimethylbenzazine, 0.015g of bright yellow, 0.15g of sodium hydroxide, 0.03g of hexadecyltri Add methyl ammonium bromide into...

Embodiment 2

[0028] The difference from Example 1 is that when preparing the water phase, 7.5 g of the treated organic soil was taken, and 50 ml of deionized water was added.

Embodiment 3

[0030] The difference from Example 1 is that when preparing the water phase, 10 g of the treated organic soil was taken and 50 ml of deionized water was added.

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Abstract

The invention relates to a preparation method of a liquid crystalline ionomer and intercalated montmorillonite composite material. On the basis of an interlamellar structure of organic montmorillonite, liquid crystalline ionomers are intercalated into the montmorillonite through in-situ polymerization after the montmorillonite is organically modified with hexadecyl trimethyl ammonium bromide, thenthe montmorillonite doped with the liquid crystalline ionomers is taken as an additive to be subjected to banburying and blending with polylactic acid, and heat resistance of polylactic acid is improved. With the adoption of the method, the liquid crystalline ionomer / montmorillonite hybrid material and polylactic acid can be combined stably, and heat resistance of polylactic acid is enhanced; asa nucleating agent, the composite material improves thermolysis resistance of polylactic acid, and meanwhile, the liquid crystalline ionomers as a compatibilizer improves compatibility of polylactic acid and montmorillonite effectively.

Description

Technical field: [0001] The invention relates to a preparation method of a liquid crystal ionomer intercalated montmorillonite composite material. Background technique: [0002] White pollution is a global problem. All countries are now actively formulating or restricting laws and regulations on plastic bags. In order to implement the scientific concept of development and build a resource-saving and environment-friendly society in China, white pollution is urgent. Polylactic acid is a new type of biodegradable material. It is recognized as an environmentally friendly thermoplastic material. It has good physical properties, good tensile strength and ductility. It can be produced by various common processing methods, such as injection molding, blow molding and other processing methods. Used in many fields such as food, industry, medicine, etc., it is the only biodegradable plastic with excellent antibacterial and antibacterial properties, and has a good market prospect. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L101/00C08K9/04C08K3/34
CPCC08L67/04C08L2201/08C08L2205/24C08L101/00C08K9/04C08K3/346
Inventor 张爱玲刘琪芳张楠
Owner SHENYANG POLYTECHNIC UNIV
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