A kind of gelatin-based nanocomposite material and preparation method thereof

A nanocomposite material, gelatin-based technology, applied in the field of gelatin-based nanocomposite materials and its preparation, can solve problems such as reporting, achieve strong binding ability, no toxic side effects, and facilitate storage

Inactive Publication Date: 2014-10-15
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, no relevant literature or invention has been reported on this research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 200 parts of dry gelatin and add it to 800 parts of water. After swelling at room temperature for 30 minutes, place it in a water bath at about 40°C and stir continuously for about 20 minutes to obtain a gelatin solution with a mass fraction of about 20%. At the same time, 300 parts of glycidyltriethylammonium chloride were weighed and added to 700 parts of water to obtain a mass fraction of about 30% glycidyltriethylammonium chloride. Adjust the pH of the gelatin aqueous solution to 8, and slowly add epoxypropyltriethylammonium chloride aqueous solution (the dry weight ratio of epoxypropyltriethylammonium chloride to gelatin is 1:100) to the gelatin aqueous solution at 20 °C ) for 10 hours to prepare an aqueous solution of quaternized ammonium salted gelatin.

[0023] 8 parts of montmorillonite were weighed and added to 992 parts of water, and stirred continuously at room temperature for 3 days to obtain an aqueous solution with a mass fraction of about 0.8% mont...

Embodiment 2

[0026] Weigh 300 parts of dry gelatin and add it to 700 parts of water. After swelling at room temperature for 50 minutes, place it in a water bath at about 60°C and stir continuously for about 40 minutes to obtain a gelatin solution with a mass fraction of about 30%. At the same time, 300 parts of glycidyltrimethylammonium chloride were weighed and added to 700 parts of water to obtain a mass fraction of about 30% glycidyltrimethylammonium chloride. Adjust the pH of the gelatin aqueous solution to 10, and slowly add epoxypropyltrimethylammonium chloride aqueous solution (the dry weight ratio of glycidyltrimethylammonium chloride to gelatin is 1:200) to the gelatin aqueous solution at 40 °C ) for 5 hours to prepare an aqueous solution of quaternized ammonium salted gelatin.

[0027] Weighed 15 parts of lithium diatomite and added it to 985 parts of water, and kept stirring at room temperature for 3 days to obtain an aqueous solution with a mass fraction of about 1.5% lithium d...

Embodiment 3

[0030] Weigh 400 parts of dry gelatin and add it to 600 parts of water. After swelling at room temperature for 40 minutes, place it in a water bath at about 70°C and stir continuously for about 10 minutes to obtain a gelatin solution with a mass fraction of about 40%. At the same time, 250 parts of glycidyl dimethyl dodecyl ammonium chloride were weighed and added to 750 parts of water to obtain a mass fraction of about 25% glycidyl dimethyl dodecyl ammonium chloride. Adjust the pH of the gelatin aqueous solution to 11, and slowly add glycidyl dimethyl dodecyl ammonium chloride (glycidyl dimethyl dodecyl ammonium chloride and gelatin) dropwise to the gelatin aqueous solution at 60 ° C The dry weight ratio is 1:50) and reacted for 4 hours to prepare an aqueous solution of quaternized ammonium salted gelatin.

[0031] Weighed 10 parts of bentonite and added to 990 parts of water, and stirred continuously at room temperature for 3 days to obtain an aqueous solution of bentonite w...

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Abstract

The invention provides a gelatin-based nanocomposite material and a preparation method thereof. In this method, firstly, the glycidyl trialkylammonium chloride solution and the gelatin aqueous solution with a mass fraction of (5-40)% are blended to prepare a quaternized ammonium-salted gelatin aqueous solution, and then the nanoclay aqueous solution is slowly added dropwise to the mixed solution and Stir and react at a temperature of 30-70°C for 2-8 hours, and then further process and shape. The gelatin-based nano-composite material provided by the invention has good mechanical properties and thermal stability; the product is safe and effective without toxic and side effects; waste can be degraded and does not cause environmental pollution; it can be applied in the fields of textiles, biomedical materials, food Packaging field, pharmaceutical packaging field and daily cosmetics field.

Description

technical field [0001] The invention belongs to the field of nanocomposite material preparation, and in particular relates to a gelatin-based nanocomposite material and a preparation method thereof. Background technique [0002] In recent years, due to the dwindling of petroleum resources, biodegradable natural polymer materials have attracted much attention. Gelatin is a natural polymer material that has very similar properties to synthetic polymers due to its linear structure and polydispersity. At the same time, due to its wide source, low cost, good biodegradability and biocompatibility, it has attracted much attention in the field of polymer composite materials. Pure gelatin materials are not water-resistant, susceptible to bacterial erosion and deterioration in humid environments, and have poor mechanical properties, which greatly limits their applications. Therefore, commonly used gelatin-based materials need to be modified to improve their physicochemical propertie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L89/00C08K3/34C08H1/00
Inventor 李德富郭佶慜穆畅道卢雪周敏
Owner SICHUAN UNIV
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