Three-dimensional graphene microchip bioplastic reinforcing master batch and preparation method

A technology of graphene microchips and bioplastics, which is applied in the field of plastic masterbatches, can solve the problems that graphene is prone to agglomeration, affects the effect of reinforcement modification, and the performance of composite plastics is reduced, so as to avoid performance degradation, not easy to fall off, and improve dispersion sexual effect

Inactive Publication Date: 2018-11-06
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the currently widely used technical method of adding graphene to modified plastics, graphene is very easy to agglomerate, and it is difficult to disperse uniformly in the plastic matrix, which in turn affects the enhanced modification effect. The present invention proposes a three-dimensional graphene micro Sheet bioplastic reinforcement masterbatch and preparation method, thereby effectively improving the dispersion of graphene in plastics, avoiding the problem of performance degradation of composite plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation process is:

[0034] (1) Add inorganic nanoclay, acrylamide monomer, collagen and natural bio-crosslinking agent into water first, stir to form a mixed solution, then add polydopamine-modified hydrophilic graphene microsheets, heat and stir until uniformly dispersed ;

[0035](2) Cool first, then add initiators and catalysts, stand still and seal the reaction, acrylamide monomers undergo in-situ polymerization between inorganic nano-clay layers, and collagen undergoes cross-linking reactions under the action of natural biological cross-linking agents to prepare A nanocomposite three-dimensional gel containing graphene microsheets is obtained; the initiator is ammonium persulfate. The catalyst is titanium tetrachloride-aluminum alkyl. The temperature of the sealed reaction was 60°C.

[0036] (3) Disperse the nanocomposite three-dimensional gel prepared in step (2) in Fe(OH) 3 colloidal solution, and freeze-dried to make Fe(OH) 3 The three-dimensional...

Embodiment 2

[0040] The preparation process is:

[0041] (1) Add inorganic nanoclay, acrylamide monomer, collagen and natural bio-crosslinking agent into water first, stir to form a mixed solution, then add polydopamine-modified hydrophilic graphene microsheets, heat and stir until uniformly dispersed ;

[0042] (2) Cool first, then add initiators and catalysts, stand still and seal the reaction, acrylamide monomers undergo in-situ polymerization between inorganic nano-clay layers, and collagen undergoes cross-linking reactions under the action of natural biological cross-linking agents to prepare A nanocomposite three-dimensional gel containing graphene microsheets is obtained; the initiator is dibenzoyl peroxide. The catalyst is titanium trichloride-aluminum alkyl. The temperature of the sealed reaction was 70°C.

[0043] (3) Disperse the nanocomposite three-dimensional gel prepared in step (2) in Fe(OH) 3 colloidal solution, and freeze-dried to make Fe(OH) 3 The three-dimensional g...

Embodiment 3

[0047] The preparation process is:

[0048] (1) Add inorganic nanoclay, acrylamide monomer, collagen and natural bio-crosslinking agent into water first, stir to form a mixed solution, then add polydopamine-modified hydrophilic graphene microsheets, heat and stir until uniformly dispersed ;

[0049] (2) Cool first, then add initiators and catalysts, stand still and seal the reaction, acrylamide monomers undergo in-situ polymerization between inorganic nano-clay layers, and collagen undergoes cross-linking reactions under the action of natural biological cross-linking agents to prepare A nanocomposite three-dimensional gel containing graphene microsheets is obtained; the initiator is potassium permanganate. The catalyst is titanium tetrachloride-aluminum alkyl. The temperature of the sealed reaction was 80°C.

[0050] (3) Disperse the nanocomposite three-dimensional gel prepared in step (2) in Fe(OH) 3 colloidal solution, and freeze-dried to make Fe(OH) 3 The three-dimensi...

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Abstract

The invention provides a three-dimensional graphene microchip bioplastic reinforcing master batch and a preparation method. The preparation method comprises the following steps: adding inorganic nanoclay, an acrylamide monomer, collagen, a natural biological crosslinking agent and a graphene microchip into water, allowing dispersing uniformly, then adding an initiator and a catalyst, allowing a reaction to obtain nanocomposite three-dimensional gel, then dispersing the nanocomposite three-dimensional gel in a Fe(OH)3 colloidal solution, pulverizing into powder after freeze-drying, finally mixing the powder with carrier resin and a dispersing agent, and performing extrusion and granulation to obtain the three-dimensional graphene microchip bioplastic reinforcing master batch. According to the method, polydopamine modification is adopted to obtain hydrophilic graphene microchips, and then a colloid is utilized to encapsulate the graphene microchips into three-dimensional nanogel micropores, so that the problem of high possibility of agglomeration of the graphene microchips is effectively avoided, the dispersibility of the graphene microchips in a plastic matrix is effectively ensured, and the reinforcing performance of the graphene microchips is better played.

Description

technical field [0001] The invention relates to the field of plastic masterbatches, in particular to the preparation of reinforced masterbatches, in particular to a three-dimensional graphene microchip bioplastic reinforced masterbatch and a preparation method thereof. Background technique [0002] With the rapid development of polymer science, society has higher requirements for the performance of polymer materials. Existing polymer plastics are mainly blended and modified to endow plastics with special properties. However, since the alloys of different types of plastics are all polymers, their properties are limited to polymer materials, and it is difficult to continue to improve. At present, the conventional technical method of reinforcing plastics is to carry out filling modification. After adding a certain amount of inorganic fillers to polymer materials, it can reduce the cost of plastic products and play a reinforcing role without affecting the quality of plastics. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L33/24C08L89/00C08K9/04C08K7/00C08K3/22C08F120/54C08J3/24C08J3/075
CPCC08J3/246C08F120/54C08J3/075C08J2367/02C08J2389/00C08J2433/24C08J2489/00C08K7/00C08K9/08C08K2003/2265C08K2201/011
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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