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A preparation method and application method of graphene-based protein filler

A technology of alkenyl protein and graphite, which is applied in the field of tanning technology, can solve the problem that the physical and mechanical properties of leather are difficult to achieve high, and achieve the effects of increased leather added value, high reactivity, and improved bursting strength

Active Publication Date: 2020-10-27
XINGYE LEATHER TECH CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

Among them, the technology of amino resin modified collagen to prepare protein fillers is relatively mature, but the filling performance of the obtained protein fillers and the physical and mechanical properties of the filled leather are difficult to reach a higher level

Method used

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Examples

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Embodiment Construction

[0019] The implementation of the present invention will be described in detail below in conjunction with specific examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art, and the reagents and products used are also commercially available. Various processes and methods not described in detail are conventional methods well known in the art, and the reagents used are common reagents that can be purchased through commercial channels.

[0020] A preparation method for a graphene-based protein filler, comprising the following steps:

[0021] Step 1, the preparation of graphene-based amino resin:

[0022] (1) Get 126g melamine resin monomer, place melamine resin monomer in the reactor, add 1.26kg water, adjust pH to be 9.5, 80 ℃ of co...

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Abstract

The invention relates to the technical field of leather making processes and provides a preparation method and an application method of the graphene-based protein filler. The preparation method comprises the following steps: dispersing graphene in amino resin at a certain proportion to prepare graphene-based amino resin; and then using the graphene-based amino resin to modify collagen to obtain the graphene-based protein filler. The relative molecular mass of collagen is increased, the crosslinking property of the protein filler is improved, and the selective filling property of the protein filler is enhanced. When the prepared graphene protein filler is used for leather retanning and filling, location difference of leather can be greatly reduced, and meanwhile, the physical and mechanicalproperties of the leather are improved.

Description

technical field [0001] The invention relates to the technical field of tanning technology, in particular to a method for preparing a graphene-based protein filler and an application method thereof. Background technique [0002] According to statistics, 1 ton of raw leather can only produce 200kg of finished leather, but it will generate more than 600kg of solid waste, of which about 250kg is classified as hazardous solid waste containing chromium-containing leather, and its main components are collagen and Cr. 2 o 3 , on a dry basis, Cr in chromium-containing waste 2 o 3 The content of collagen is about 4.0%, and the content of collagen is about 80%. If the traditional landfill method is used, it will not only bring great pollution to the environment, but also cause a lot of waste of resources. Therefore, using chromium-containing waste to extract collagen to prepare protein fillers, so that chromium-containing solid waste from tanning can be recycled in the tanning indus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C3/22C08G12/40C08G12/32C07K14/78C12P21/06C07K1/107
CPCC07K14/78C08G12/32C08G12/40C12P21/06C14C3/22
Inventor 孙辉永王小卓温会涛贾喜庆梁永贤王坤余
Owner XINGYE LEATHER TECH CO LTD
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