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High-strength starch/clay composite material and preparation method thereof

A composite material and high-strength technology, applied in the field of high-strength starch/clay composite materials and their preparation, can solve the problem of high preparation cost, and achieve the effects of low cost, simple preparation and huge application prospect.

Active Publication Date: 2017-05-31
THIRD INST OF OCEANOGRAPHY STATE OCEANIC ADMINISTATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a starch / clay composite material with excellent performance, strong practicability, biodegradable high strength and a preparation method thereof, aiming at the disadvantages of high preparation cost and low applicability of existing starch composite materials. With good hydrophilicity and thermal responsiveness, it has great application prospects in the field of medical materials such as drug sustained-release carriers, and has the advantages of simple preparation, low cost, and environmental protection.

Method used

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  • High-strength starch/clay composite material and preparation method thereof
  • High-strength starch/clay composite material and preparation method thereof
  • High-strength starch/clay composite material and preparation method thereof

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specific Embodiment 1

[0048] Specific embodiment one: its preparation method adopts following method step:

[0049] Step 1: Mix starch and deionized water at a mass ratio of 0.05:10, heat to 60°C, and stir until completely dissolved;

[0050] Step 2: Add isopropylacrylamide and XLG to the mixture in step 1. The mass ratio of isopropylacrylamide, XLG and deionized water is 0.5:0.4:10 for mixing, and stir evenly under the mixer .

[0051] Step 3: Add 2,2-diethoxyacetophenone to the mixed solution in step 2, wherein the added mass is 0.08% of the mixed solution, and stir evenly; pour the mixed solution into a mold, The composite was irradiated for 2 hours under a special ultraviolet lamp, and the composite was peeled off from the template, and washed in clear water to obtain a starch / clay composite material, which was composited by polyacrylamide and XLG.

[0052] Step 4: If figure 1 and figure 2 As shown, the prepared hydrogel was tested for tensile and compressive strength, and the instrument u...

specific Embodiment 2

[0053] Specific embodiment two: its preparation method adopts following method steps:

[0054] Step 1: Mix starch and deionized water at a mass ratio of 0.1:10, and dissolve in an environment of 60°C;

[0055] Step 2: Add isopropylacrylamide and S482 to the mixed liquid in step 1, and mix with isopropylacrylamide, S482, and deionized water at a mass ratio of 1:2.5:10, and stir evenly under the mixer .

[0056] Step 3: Add 2,2-diethoxyacetophenone to the mixed solution in Step 2, wherein the added mass is 0.12% of the mixed solution, and stir evenly. Pour the mixture into the mold, irradiate for 2 hours under a 365nm ultraviolet lamp, peel off the composite from the template, and wash it in clean water to obtain a starch / clay composite material, which is composed of polyacrylamide and S482 .

[0057] Step 4: Test the tensile and compressive strength of the prepared hydrogel. The instrument used in the experiment is an electronic universal testing machine (RGM-2010). The ten...

specific Embodiment 3

[0058] Specific embodiment three: its preparation method adopts following method steps:

[0059] Step 1: Mix starch and deionized water in a mass ratio of 0.1:10, and dissolve in an environment of 100°C;

[0060] Step 2: Add isopropylacrylamide and S482 to the mixed liquid in step 1, wherein the mass ratio of isopropylacrylamide, S482, and deionized water is 0.75:1.5:10 for mixing, and stir evenly under the mixer .

[0061] Step 3: Add 2,2-diethoxyacetophenone to the mixed solution in step 2, wherein the added mass is 0.1% of the mixed solution mass, stir evenly, add tetramethylethylenediamine, the mass is mixed 0.12% of liquid. Pour the mixed solution into the mold, thermally polymerize at a constant temperature of 30°C for 25 hours, peel off the composite from the template, and wash it in clean water to obtain a starch / clay composite material, which is composed of polyacrylamide and S482.

[0062] Step 4: Test the tensile and compressive strength of the prepared hydrogel....

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Abstract

The invention relates to the technical field of composite material preparation, in particular to a high-strength starch / clay composite material and a preparation method thereof. According to the following technical scheme, the composite material is prepared by the following steps: mixing starch and deionized water; heating to dissolve completely; adding monomers and clay, and stirring uniformly to form a pre-polymerized liquid, wherein the monomers, the clay and the deionized water are in the mass ratio of (0.5-1):(0.5-3.5):10; then, adding a photoinitiator, and irradiating for 2 hours by an ultraviolet lamp under the wavelength of 365 nm; or adding a thermal initiator and a catalyst into the pre-polymerized liquid, and polymerizing for 20 to 40 hours at 20 to 40 DEG C to obtain the starch / clay composite material. The composite material has a ternary interpenetrating network structure which consists of the starch, a polymer and the clay; the tensile strength can reach 500 KPa and the compressive strength can reach 1 Mpa; the composite material has hydrophilcity and thermal response, has a great application prospect in the field of medical materials, such as medicament controlled-release carriers, and also has the advantages of simple preparation, low cost, environmental friendliness, and the like.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of composite material preparation, in particular to a high-strength starch / clay composite material and a preparation method thereof. [0003] 【Background technique】 [0004] Starch is a natural hydrophilic polymer compound formed by photosynthesis of plants and widely exists in the biological world. It can be extracted from starchy substances such as corn, sweet potato, wild acorn and kudzu root. As a renewable natural resource, it provides raw materials for the sustainable development of polymer materials, but the inherent disadvantages of starch itself, such as insolubility in cold water, poor shear resistance, poor water resistance, and lack of melt fluidity, make it difficult to be used alone as a For the use of a polymer material, it needs to be chemically / physically modified to enhance certain functions or form new physical and chemical properties. In addition to being used in traditional fiel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/24C08L3/02C08K3/34C08F251/00C08F220/54C08F2/48
Inventor 林凌朱忆刘剑楠徐长安刘源森唐旭
Owner THIRD INST OF OCEANOGRAPHY STATE OCEANIC ADMINISTATION
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