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Conductive bio-based plastic as well as preparation method and application thereof

A bio-based plastic and bio-based technology, applied in the direction of electrical components, magnetic field/electric field shielding, etc., can solve the problems of electromagnetic shielding energy-efficient fillers that are easy to agglomerate, difficult to shape, and cannot meet the requirements of use, and achieve excellent electromagnetic shielding performance, high The effect of conductivity

Pending Publication Date: 2022-05-13
泰州泽钰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, two-dimensional materials are expensive, heavy and not easy to form, so they are not suitable for precision instruments
However, plastic materials can give people a satisfactory appearance but have no electromagnetic shielding function. In order to endow plastic with electromagnetic shielding function, the traditional technology is mostly to add electromagnetic shielding energy-efficient fillers to non-water-soluble polymer materials. This method has battery shielding function. The plastics have the defects of high resistance and poor corrosion resistance, and when there are more electromagnetic shielding energy-efficient fillers, the mechanical properties of the plastics are severely reduced and cannot meet the requirements of use; in addition, due to the electromagnetic shielding energy-efficient fillers and non-water-soluble polymer materials Poor compatibility of batteries, easy agglomeration of electromagnetic shielding energy-efficient fillers, and harsh processing conditions lead to poor comprehensive performance and performance stability of the finally obtained plastics with battery shielding functions

Method used

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  • Conductive bio-based plastic as well as preparation method and application thereof
  • Conductive bio-based plastic as well as preparation method and application thereof
  • Conductive bio-based plastic as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Provide a conductive bio-based plastic: rGO / starch-based polyethylene, by mass percentage, its raw materials include:

[0046] Starch 10%;

[0047] Polyethylene 70%;

[0048] Hydrophobic association polyacrylamide modified rGO 20% (wherein the weight ratio of hydrophobic association polyacrylamide in the two-dimensional material is 50%).

[0049] Its preparation method comprises the following steps:

[0050]1) Install a thermometer, a reflux condenser and a mechanical stirrer on the three-necked flask, and feed nitrogen gas at the same time, add 15g of surfactant, 14g of acrylamide, 0.3g of N-dodecylacrylamide, and 450g of deionized water. After stirring for 15 hours, it was heated to 50°C, and potassium persulfate was added to react for 3 hours. Then cool down and add an appropriate amount of water and acetone to precipitate the polymer, and dry under reduced pressure for 24 hours to obtain the product hydrophobically associated polyacrylamide. Subsequently, the ob...

Embodiment 2

[0058] A conductive bio-based plastic titanium carbon / protein-based PS is provided, and its raw materials include:

[0059] Protein 10%;

[0060] PS 75%;

[0061] Hydrophobic association hydroxyethyl cellulose modified carbon titanide 15% (wherein the mass proportion of hydrophobic association hydroxyethyl cellulose is 30%).

[0062] Its preparation method comprises the following steps:

[0063] 1) Add the cellulose isopropanol solution (9%wt) into the three-necked flask, stir vigorously for 30min, slowly drop in 5%wt NaOH solution, stir at high speed, reduce the stirring speed after the dropwise addition, pass in nitrogen, and keep at room temperature Let stand for 24h. Heating to 80°C, adding hydrophobic monomer, and reacting for 8h. After cooling with cold water, the initial product was washed with n-hexane and soaked overnight. Then wash with 80% acetone until neutral, and then wash with 90% and 100% acetone for 2 hours respectively. The product was vacuum-dried for ...

Embodiment 3

[0071] Provide a conductive bio-based plastic: montmorillonite / animal gum-based PVC, in terms of mass percentage, its raw materials include:

[0072] Animal glue 20%;

[0073] PVC 62%;

[0074] 18% of montmorillonite modified by hydrophobic association polyacrylamide (the mass proportion of hydrophobic association polyacrylamide is 50%).

[0075] Its preparation method comprises the following steps:

[0076] 1) Install a thermometer, a reflux condenser and a mechanical stirrer on the three-necked flask, and feed nitrogen gas at the same time, add 15g of surfactant, 14g of acrylamide, 0.3g of N-dodecylacrylamide, and 450g of deionized water. After stirring for 15 hours, it was heated to 50°C, and potassium persulfate was added to react for 3 hours. Then cool down and add appropriate amount of water and acetone to precipitate the polymer, and dry under reduced pressure for 24 hours to obtain the product hydrophobically associated acrylamide. Subsequently, the obtained hydrop...

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Abstract

The invention discloses a conductive bio-based plastic and a preparation method and application thereof, and the conductive bio-based plastic comprises the following raw materials by weight: 5-55% of a bio-based material; 15%-94% of a non-water-soluble polymer material; and 1%-30% of a hydrophobic association polymer modified two-dimensional material. According to the conductive bio-based plastic provided by the invention, the hydrophobic associated polymer is introduced to modify the two-dimensional material, so that the two-dimensional material has amphipathy, and further, the bio-based material, the two-dimensional material and the high polymer material have higher compatibility; therefore, the strength of the bio-based plastic is improved, and the bio-based plastic has excellent conductivity and electromagnetic shielding characteristics.

Description

technical field [0001] The invention relates to the field of bio-based plastics, in particular to a conductive bio-based plastic and its preparation method and application. Background technique [0002] Plastic is an indispensable class of synthetic polymer materials in human life. However, due to the non-degradability of plastics and high recycling costs, only about 9% of plastics can be recycled at present. A large amount of these waste plastics are landfilled or discharged into the ocean, which has posed a serious threat to the ecosystem. At the same time, the synthetic raw materials of traditional plastics all come from non-renewable fossil resources. Therefore, the research and development of bio-based plastics that can replace traditional plastics has become an urgent task. Existing composite plastics made of bio-based materials have the characteristics of heat insulation, sound insulation and earthquake resistance, and are widely used in transportation, sound insul...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L3/02C08K9/04C08K3/04C08L25/06C08L89/00C08K3/14C08L27/06C08K3/34C08L33/12C08L97/00C08K3/30C08J5/18H05K9/00
CPCC08L23/06C08L25/06C08L27/06C08L33/12H05K9/0081C08J5/18C08K2003/3009C08K2201/001C08J2323/06C08J2325/06C08J2327/06C08J2333/12C08J2403/02C08J2489/00C08J2497/00C08L2203/16C08L3/02C08K9/08C08K3/042C08L89/00C08K3/14C08K3/346C08L97/005C08K3/30
Inventor 王小威
Owner 泰州泽钰新材料科技有限公司
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