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Preparation method of biodegradable nanometer material
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A technology of nanomaterials and fiber slag, which is applied in the field of preparation of degradable nanomaterials, can solve the problems of waste of resources and energy, increase the carrying capacity of the environment, etc., and achieve the effects of variable shape and structure, rich pores, and good economic benefits
Inactive Publication Date: 2018-06-15
叶剑
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Problems solved by technology
However, with the wide range of applications and the increase in the number of nanomaterials, how to realize the degradability of nanomaterials has become a concern of people; my country is a large agricultural country, and the waste generated by agricultural and forestry production, such as fiberslag, is increasing year by year, which not only increases the Environmental carrying capacity is also a waste of resources and energy
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Embodiment 1
[0021] S1: Pulverize 10 parts of soybean dregs and 15 parts of fiber dregs, add 1.0 mol / L sulfuric acid solution, and soak for 1 hour; then centrifuge, filter, and wash with distilled water until neutral;
[0022] S2: Add 10 parts of isoamyl acetate, 10 parts of polypropylene and 18 parts of polyethylene glycol to step S1, stir and react at a temperature of 60° C. for 1 hour; then sonicate for 15 minutes to obtain a mixture A;
[0023] S3: Add the mixed liquid A in step S2 into a single-screw extruder, and extrude at an extrusion temperature of 85°C and a screw speed of 80r / min;
[0024] S4: Then put it into a flat mold of a hot press, and press it for 3 minutes at a temperature of 130° C. and a pressure of 15 MPa to obtain the degradable nanomaterial.
Embodiment 2
[0026] S1: Pulverize 20 parts of soybean dregs and 25 parts of fiber dregs, add 2.0 mol / L sulfuric acid solution, and soak for 3 hours; then centrifuge, filter, and wash with distilled water until neutral;
[0027] S2: Add 15 parts of isoamyl acetate, 12 parts of polypropylene and 25 parts of polyethylene glycol to step S1, stir and react at a temperature of 80° C. for 2 hours; then sonicate for 20 minutes to obtain a mixture A;
[0028] S3: Add the mixed liquid A in step S2 into a single-screw extruder, and extrude at an extrusion temperature of 110°C and a screw speed of 90r / min;
[0029] S4: Then put it into a spiral mold of a hot press, and press it for 10 minutes at a temperature of 150° C. and a pressure of 20 MPa to obtain the degradable nanomaterial.
Embodiment 3
[0031] S1: Pulverize 12 parts of soybean dregs and 18 parts of fiber dregs, add 1.2 mol / L sulfuric acid solution, and soak for 1.5 hours; then centrifuge, filter, and wash with distilled water until neutral;
[0032] S2: Add 13 parts of isoamyl acetate, 12 parts of polypropylene and 20 parts of polyethylene glycol to step S1, stir and react at a temperature of 65° C. for 1.5 hours; then sonicate for 18 minutes to obtain a mixture A;
[0033] S3: Add the mixed liquid A in step S2 into a single-screw extruder, and extrude at an extrusion temperature of 90°C and a screw speed of 85r / min;
[0034] S4: Then put it into a flat mold of a hot press, and press it for 5 minutes at a temperature of 135° C. and a pressure of 16 MPa to obtain the degradable nanomaterial.
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Abstract
The invention discloses a preparation method of a biodegradable nanometer material. The preparation method comprises the following steps: crushing soybean meals and fibrous residues, adding 1.0 to 2.0mol / L of a sulfuric acid solution into a mixture and impregnating for 1 to 3 hours; subsequently carrying out centrifugal stirring and filtering and washing with distilled water to neutral; then adding isoamyl acetate, polypropylene and polyethylene glycol, and carrying out stirring reaction at the temperature of 60 to 80 DEG C for 1 to 2 hours; carrying out ultrasonic treatment for 15 to 20 minutes to obtain a mixed solution A; adding the mixed solution A into a single screw extruder and extruding under the conditions that the extrusion temperature is 85 to 110 DEG C and the rotating speed of a screw is 80 to 90 r / min; putting the mixed solution A into a mould of a hot press; carrying out hot pressing under the conditions that the temperature is 130 to 150 DEG C and the pressure is 15 to20MPa for 3 to 10 minutes, so as to obtain the biodegradable nanometer material.
Description
technical field [0001] The invention belongs to the field of nanometer materials, in particular to a preparation method of degradable nanomaterials. Background technique [0002] The new technology of nanomaterials below 100nm is called nanotechnology, which is an important part of modern scientific disciplines. Nanotechnology has the potential to provide technological leaps of relatively positive significance in everyday life, they differ from the same materials with large dimensions in properties such as high plasticity, high hardness, low melting point, transparency and high surface area per mass unit , and their improved catalytic activity, low thermal conductivity, enhanced magnetic effect, high semiconductorluminescence, color change, and consistency with the laws of quantummechanics involved. In recent years, as a result of the recognition of these new properties, a thorough investigation has been conducted on the development of new nanomaterial preparation methods...
Claims
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Application Information
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