Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of graphene oxide/water-soluble polyurethane composite material

A technology of water-soluble polyurethane and composite materials, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problems of low strength and poor performance, and achieve good strength, novel design and simple process of finished products. Effect

Active Publication Date: 2017-07-14
青岛华高烯暖新材料科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the water-based polyurethane resin has gradually replaced the solvent-based and has become an important direction for the development of the polyurethane industry. Water-based polyurethane refers to a new type of polyurethane system that uses water instead of organic solvents as the dispersion medium, also known as water-dispersed polyurethane, water-based polyurethane or water-based polyurethane. , can be widely used in coatings, adhesives, fabric coating and finishing agents, leather finishing agents, paper surface treatment agents and fiber surface treatment agents; compared with solvent-based polyurethane, it has low application cost, non-toxic, non-polluting, safe Reliable, good compatibility, easy to modify and other advantages, and there is a tendency to gradually replace solvent-based polyurethane; but water-based polyurethane materials also have inherent shortcomings, such as low strength, poor heat resistance, water resistance, antistatic performance, etc., so limit its further application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of graphene oxide/water-soluble polyurethane composite material
  • A kind of preparation method of graphene oxide/water-soluble polyurethane composite material
  • A kind of preparation method of graphene oxide/water-soluble polyurethane composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The concrete steps of the preparation method of the graphene oxide / water-soluble polyurethane composite material involved in this implementation are:

[0020] (1) Graphite powder pretreatment process: get 55ml mass fraction and be the concentrated sulfuric acid of 98%, 8g potassium persulfate and 8g phosphorus pentoxide mix uniformly and be heated to 80 ℃ until completely dissolving to form mixed solution, get 16g graphite powder in 400 Add to the mixture at a stirring speed of ~500r / min, and continue to stir at 20-25°C for 6 hours to oxidize the above mixture. After the oxidation is completed, dilute the mixture with 500ml of distilled water and wash it with suction to neutrality (PH=7 ), then vacuum-dried at 35 to 45°C for 4 hours to obtain graphite powder;

[0021] (2) Oxidation treatment process: Take 16g of graphite powder prepared in step (1) and 450ml of concentrated sulfuric acid with a mass fraction of 98% and a temperature of 0°C and mix them in an ice bath at...

Embodiment 2

[0026] In this embodiment, according to the preparation method described in Example 1, in step (4), add 7.5g, 15g, 22.5g and 30g of graphene oxide aqueous phase dispersion prepared in step (3) to 100g water-soluble polyurethane respectively solution to prepare graphene oxide / water-soluble polyurethane composite samples with a solid content of 0.25%, 0.5%, 0.75% and 1%, and then cut the prepared samples for strength tensile testing on a tensile tester. stretch test.

Embodiment 3

[0028] In the present embodiment, the water-soluble polyurethane composite material whose mass fraction of graphene oxide after drying is 0% is taken as a comparative example, and the quality of graphene oxide after drying respectively prepared in Example 2 is tested with a universal tester in the prior art. The graphene oxide / water-soluble polyurethane composite material samples with fractions of 0.25%, 0.5%, 0.75% and 1% were subjected to tensile strength test and elongation test. During the test, each group of samples was made into a width of 4mm and a thickness of 1.5mm. -2mm film, the specific data are shown in Tables 1 and 2:

[0029]

[0030]

[0031] Table 1

[0032]

[0033] Table 2

[0034]Above-mentioned experimental data shows, the graphene oxide / water-soluble polyurethane composite material prepared by the preparation method of the graphene oxide / water-soluble polyurethane composite material researched and designed by the present invention has good tensi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of composite material preparation, and relates to a preparation method of graphene oxide / water-soluble polyurethane composite material, which specifically includes graphite powder pretreatment process, oxidation treatment process, post-treatment process and mold making measurement process. The preparation of graphene oxide / water-soluble polyurethane composite materials by mixed method is simple, low-cost, and highly controllable, and is suitable for large-scale industrial production. The prepared graphene oxide / water-soluble polyurethane composite materials have good tensile strength and constant elongation strength, the nanocomposite materials prepared by it can be applied in the fields of engineering materials and special fibers, and have good application prospects; the method is novel in design, scientific in principle, simple in process, easy to operate, high in preparation efficiency, and good in strength .

Description

[0001] Technical field: [0002] The invention belongs to the technical field of composite material preparation, and relates to a method for preparing a graphene oxide / water-soluble polyurethane composite material. The prepared graphene oxide / water-soluble polyurethane composite material has good tensile strength and constant elongation strength. [0003] Background technique: [0004] At present, the water-based polyurethane resin has gradually replaced the solvent-based and has become an important direction for the development of the polyurethane industry. Water-based polyurethane refers to a new type of polyurethane system that uses water instead of organic solvents as the dispersion medium, also known as water-dispersed polyurethane, water-based polyurethane or water-based polyurethane. , can be widely used in coatings, adhesives, fabric coating and finishing agents, leather finishing agents, paper surface treatment agents and fiber surface treatment agents; compared with so...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08K9/02C08K3/04C09C1/46C09C3/06
Inventor 潘东晓刘敬权王福山吴春艳古晨
Owner 青岛华高烯暖新材料科技有限公司