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Preparation method of epoxy resin base micron to nano grade pore gelatin

An epoxy resin and nano-scale technology, which is applied in the preparation of epoxy resin-based micro- to nano-scale pore gels, can solve the problems of discontinuity of filling system, pore size shrinkage of pore materials, unstable material properties, etc. Accurate and easy control, simple molding, excellent cost-effective effect

Inactive Publication Date: 2009-06-10
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The colloidal crystal template method will cause different degrees of filling defects, resulting in discontinuity of the filling system, resulting in severe shrinkage of the pore size of the porous material (some as high as 30%) and instability of material properties.

Method used

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  • Preparation method of epoxy resin base micron to nano grade pore gelatin
  • Preparation method of epoxy resin base micron to nano grade pore gelatin
  • Preparation method of epoxy resin base micron to nano grade pore gelatin

Examples

Experimental program
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Effect test

Embodiment 1

[0027] 10 grams of epoxy resin and 2.5 grams of diethylenetriamine were dissolved in 25 grams of polyethylene glycol 1000 medium to obtain a clear solution, polymerized at 50 ° C for at least 4 hours, the viscosity of the solution continued to increase, and then phase separation gradually occurred, forming A white gel that eventually solidifies into a block, the solid is placed in water and the polyethylene glycol is dissolved and removed to form a microporous gel. Its structure is as image 3 As shown, the pore diameter is shown in Table 1.

Embodiment 2～5

[0029] The weight of fixed epoxy resin and diethylenetriamine is constant, the weight of Polyethylene Glycol 1000 is changed into 25 grams, 40 grams, 50 grams, 60 grams respectively, all the other conditions and operation are identical with embodiment 1, make corresponding Microporous gel, the pore size is shown in Table 1.

[0030] Table 1:

[0031] Example 1 Example 2 Example 3 Example 4 Example 5 Epoxy resin (g) 10 10 10 10 10 Diethylenetriamine (g) 2.5 2.5 2.5 2.5 2.5 PEG1000(g) 25 30 40 50 60 Average pore size (μm) 0.22 0.45 0.78 1.2 1.6

Embodiment 6

[0033] The weight of fixed epoxy resin is 10 grams, the weight of polyethylene glycol 1000 is 30 grams, and triethylenetetramine is used instead, and the weight of amine is 3.0 grams, and the remaining conditions and operations are the same as in Example 1 to obtain microporous gel , and the pore diameters are shown in Table 1.

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Abstract

This invention involves a preparation method for epoxy resin-based gel with micron to nanometer holes. The said method includes dissolving epoxy resin and amines such as diethylene triamine and triethylene tetramine in a certain weight in the polyethylene glycol solution, polymerizing to form a white gel, curing, and removing polyethylene glycol to obtain gel with micro / nano-holes. The whole preparation process is environmental-friendly. The gel can be prepared in arbitrary shape with uniform pore size distribution and adjustable size. The gel has strong hydrophilicity and resistance to acid, alkaline and solvent. There are large amounts of reaction functional groups, which can functionalized channels through chemical modification. The gel can be widely applied to separation, filtration, adsorption, and chelation in equipment analysis, water treatment and biomedical industries, such as microfiltration membrane and smart membrane, heavy metals removal, the stationary phase of chromatography column, enzyme immobilization, cell culture, drug sustained-release, chemical sensors, etc.

Description

technical field [0001] The invention relates to a preparation method of a polymer gel porous material, in particular to a preparation method of an epoxy resin-based micron to nanometer pore gel. Background technique [0002] In recent years, the preparation technology of polymer microporous materials has been greatly developed, and a variety of molding processes and methods that can produce microscopic holes in the polymer matrix have been developed, such as phase separation method, stretching method, nuclear track method, Sintering method, thermal decomposition method, suspension polymerization method, macromolecular structure template method, colloidal crystal template method, micro-foaming technology, etc. The materials prepared by these methods are very important in many fields due to their special microscopic pore structure. Applications, including insulation materials, packaging materials, controlled release materials, bone substitute materials, chromatographic monolit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08J3/075C08G59/50
Inventor 张瑞丰肖通虎
Owner NINGBO UNIV
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