Patent
US 11,041,261GRAPHENE OXIDE/POLYPROPYLENE HEAT-RESISTANT HIGH-STRENGTH COMPOSITE PROFILE AND PREPARATION METHOD THEREOF
Xu HUANG
US
Copyright © 2026 Matter42. All rights reserved.
Patent details
Patent
US 11,041,261Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Canceled
A preparation method of the graphene oxide/polypropylene heat-resistant high- strength composite profile according to claim 1, characterized by comprising the following steps: step I. preparation of a graphene oxide/polypropylene-based woven plain weave fabric: the graphene oxide/polypropylene-based woven plain weave fabric adopts graphene oxide/polypropylene filament fiber (210D/24F), and the graphene oxide accounts for 0.3-0.7 wt% of the polypropylene fiber; through the weaving process of winding, doubling, throwing, shaping, warping, sizing, re-beaming, warp tying and weaving, a graphene oxide/polypropylene multifilament is weaved into warps and weft yarns e having a warp density of 45-55/5cm, a weft density of 30-40/5 cm, a weight per square meter of 500-700 g/m 2 and a thickness of 0.06-0.20 mm; step II. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: a heat-insulating material is made into several flat nets having different thicknesses and densities, and the a heat-insulating material has a weight per square meter of 150-220 g/m 2 and a thickness of 0.10- 0.25 mm; the graphene oxide/polypropylene-based woven plain weave fabric is placed on the heat- insulating material to prepare a non-woven net material by dry laying and needling reinforcement; the heat-insulating material is one or more of asbestos, rock wool, glass fiber, aluminum silicate fiber, high silica fiber and alumina fiber; step III. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: through needling reinforcement, graphene oxide/polypropylene-based reinforced plain weave composite materials are reinforced by needling at front and back (twice) as the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material, wherein the needling density is 90-130 needlings/cm 2, the needling frequency is 220-280 needlings/min, and the fiber net needling speed is 1.8-2.0 m/min; step IV. preparation of a resin composite material: the resin composite material is an epoxy resin: the epoxy resin and a first curing agent are weighed according to a mass ratio of 2:1, and preheated at 45- 60° C for 10 m in, a silane coupling agent with a mass fraction of 3-5% of the epoxy resin and a graphene oxide/N-methylpyrrolidone dispersion (0.5%) with a mass fraction of 3-5% of the epoxy resin are added, and the mixture is stirred for 10 m in and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles in the epoxy resin; an accelerator with a mass fraction of 1-2% of the epoxy resin and acetone are sequentially added into the epoxy resin and stirred and mixed uniformly, the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material is immersed therein, a second curing agent with a mass fraction of 40% of the epoxy resin is added, and the mixture is stirred uniformly and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles; and the mixture is placed in a blast air oven at room temperature for 2 h, and cured at a temperature of 95 C-120 0 C for 4 h to finally obtain the graphene oxide/polypropylene heat-resistant high-strength composite profile. Currently amended
Canceled
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Preparation of a graphene oxide/polypropylene heat-resistant high-strength composite profile using graphene oxide/polypropylene filament fiber (210D/24F) with graphene oxide at 0.3 wt% of polypropylene fiber. Step I: plain weave fabric with warp density 45/5cm, weft density 30/5cm, 500 g/m2, 0.06 mm thickness. Step II: heat-insulating layer at 150 g/m2 and 0.10 mm thickness, combined with GO/PP fabric by dry laying and needle punching. Step III: multilayer composite reinforced by needling at 90 needlings/cm2, 220 needlings/min, fiber net speed 1.8 m/min.
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide/polypropylene heat-resistant high-strength composite profile
Materials described outside the worked examples.
epoxy resin
curing agent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 45–60 °C | — |
Thickness | 0.06–0.2 mm |
Patent details
Patent
US 11,041,261Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Canceled
A preparation method of the graphene oxide/polypropylene heat-resistant high- strength composite profile according to claim 1, characterized by comprising the following steps: step I. preparation of a graphene oxide/polypropylene-based woven plain weave fabric: the graphene oxide/polypropylene-based woven plain weave fabric adopts graphene oxide/polypropylene filament fiber (210D/24F), and the graphene oxide accounts for 0.3-0.7 wt% of the polypropylene fiber; through the weaving process of winding, doubling, throwing, shaping, warping, sizing, re-beaming, warp tying and weaving, a graphene oxide/polypropylene multifilament is weaved into warps and weft yarns e having a warp density of 45-55/5cm, a weft density of 30-40/5 cm, a weight per square meter of 500-700 g/m 2 and a thickness of 0.06-0.20 mm; step II. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: a heat-insulating material is made into several flat nets having different thicknesses and densities, and the a heat-insulating material has a weight per square meter of 150-220 g/m 2 and a thickness of 0.10- 0.25 mm; the graphene oxide/polypropylene-based woven plain weave fabric is placed on the heat- insulating material to prepare a non-woven net material by dry laying and needling reinforcement; the heat-insulating material is one or more of asbestos, rock wool, glass fiber, aluminum silicate fiber, high silica fiber and alumina fiber; step III. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: through needling reinforcement, graphene oxide/polypropylene-based reinforced plain weave composite materials are reinforced by needling at front and back (twice) as the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material, wherein the needling density is 90-130 needlings/cm 2, the needling frequency is 220-280 needlings/min, and the fiber net needling speed is 1.8-2.0 m/min; step IV. preparation of a resin composite material: the resin composite material is an epoxy resin: the epoxy resin and a first curing agent are weighed according to a mass ratio of 2:1, and preheated at 45- 60° C for 10 m in, a silane coupling agent with a mass fraction of 3-5% of the epoxy resin and a graphene oxide/N-methylpyrrolidone dispersion (0.5%) with a mass fraction of 3-5% of the epoxy resin are added, and the mixture is stirred for 10 m in and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles in the epoxy resin; an accelerator with a mass fraction of 1-2% of the epoxy resin and acetone are sequentially added into the epoxy resin and stirred and mixed uniformly, the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material is immersed therein, a second curing agent with a mass fraction of 40% of the epoxy resin is added, and the mixture is stirred uniformly and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles; and the mixture is placed in a blast air oven at room temperature for 2 h, and cured at a temperature of 95 C-120 0 C for 4 h to finally obtain the graphene oxide/polypropylene heat-resistant high-strength composite profile. Currently amended
Canceled
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Preparation of a graphene oxide/polypropylene heat-resistant high-strength composite profile using graphene oxide/polypropylene filament fiber (210D/24F) with graphene oxide at 0.3 wt% of polypropylene fiber. Step I: plain weave fabric with warp density 45/5cm, weft density 30/5cm, 500 g/m2, 0.06 mm thickness. Step II: heat-insulating layer at 150 g/m2 and 0.10 mm thickness, combined with GO/PP fabric by dry laying and needle punching. Step III: multilayer composite reinforced by needling at 90 needlings/cm2, 220 needlings/min, fiber net speed 1.8 m/min.
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide/polypropylene heat-resistant high-strength composite profile
Materials described outside the worked examples.
epoxy resin
curing agent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 45–60 °C | — |
Thickness | 0.06–0.2 mm |
Patent details
Patent
US 11,041,261Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Canceled
A preparation method of the graphene oxide/polypropylene heat-resistant high- strength composite profile according to claim 1, characterized by comprising the following steps: step I. preparation of a graphene oxide/polypropylene-based woven plain weave fabric: the graphene oxide/polypropylene-based woven plain weave fabric adopts graphene oxide/polypropylene filament fiber (210D/24F), and the graphene oxide accounts for 0.3-0.7 wt% of the polypropylene fiber; through the weaving process of winding, doubling, throwing, shaping, warping, sizing, re-beaming, warp tying and weaving, a graphene oxide/polypropylene multifilament is weaved into warps and weft yarns e having a warp density of 45-55/5cm, a weft density of 30-40/5 cm, a weight per square meter of 500-700 g/m 2 and a thickness of 0.06-0.20 mm; step II. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: a heat-insulating material is made into several flat nets having different thicknesses and densities, and the a heat-insulating material has a weight per square meter of 150-220 g/m 2 and a thickness of 0.10- 0.25 mm; the graphene oxide/polypropylene-based woven plain weave fabric is placed on the heat- insulating material to prepare a non-woven net material by dry laying and needling reinforcement; the heat-insulating material is one or more of asbestos, rock wool, glass fiber, aluminum silicate fiber, high silica fiber and alumina fiber; step III. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: through needling reinforcement, graphene oxide/polypropylene-based reinforced plain weave composite materials are reinforced by needling at front and back (twice) as the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material, wherein the needling density is 90-130 needlings/cm 2, the needling frequency is 220-280 needlings/min, and the fiber net needling speed is 1.8-2.0 m/min; step IV. preparation of a resin composite material: the resin composite material is an epoxy resin: the epoxy resin and a first curing agent are weighed according to a mass ratio of 2:1, and preheated at 45- 60° C for 10 m in, a silane coupling agent with a mass fraction of 3-5% of the epoxy resin and a graphene oxide/N-methylpyrrolidone dispersion (0.5%) with a mass fraction of 3-5% of the epoxy resin are added, and the mixture is stirred for 10 m in and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles in the epoxy resin; an accelerator with a mass fraction of 1-2% of the epoxy resin and acetone are sequentially added into the epoxy resin and stirred and mixed uniformly, the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material is immersed therein, a second curing agent with a mass fraction of 40% of the epoxy resin is added, and the mixture is stirred uniformly and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles; and the mixture is placed in a blast air oven at room temperature for 2 h, and cured at a temperature of 95 C-120 0 C for 4 h to finally obtain the graphene oxide/polypropylene heat-resistant high-strength composite profile. Currently amended
Canceled
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Preparation of a graphene oxide/polypropylene heat-resistant high-strength composite profile using graphene oxide/polypropylene filament fiber (210D/24F) with graphene oxide at 0.3 wt% of polypropylene fiber. Step I: plain weave fabric with warp density 45/5cm, weft density 30/5cm, 500 g/m2, 0.06 mm thickness. Step II: heat-insulating layer at 150 g/m2 and 0.10 mm thickness, combined with GO/PP fabric by dry laying and needle punching. Step III: multilayer composite reinforced by needling at 90 needlings/cm2, 220 needlings/min, fiber net speed 1.8 m/min.
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide/polypropylene heat-resistant high-strength composite profile
Materials described outside the worked examples.
epoxy resin
curing agent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 45–60 °C | — |
Thickness | 0.06–0.2 mm |
Patent details
Patent
US 11,041,261Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Canceled
A preparation method of the graphene oxide/polypropylene heat-resistant high- strength composite profile according to claim 1, characterized by comprising the following steps: step I. preparation of a graphene oxide/polypropylene-based woven plain weave fabric: the graphene oxide/polypropylene-based woven plain weave fabric adopts graphene oxide/polypropylene filament fiber (210D/24F), and the graphene oxide accounts for 0.3-0.7 wt% of the polypropylene fiber; through the weaving process of winding, doubling, throwing, shaping, warping, sizing, re-beaming, warp tying and weaving, a graphene oxide/polypropylene multifilament is weaved into warps and weft yarns e having a warp density of 45-55/5cm, a weft density of 30-40/5 cm, a weight per square meter of 500-700 g/m 2 and a thickness of 0.06-0.20 mm; step II. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: a heat-insulating material is made into several flat nets having different thicknesses and densities, and the a heat-insulating material has a weight per square meter of 150-220 g/m 2 and a thickness of 0.10- 0.25 mm; the graphene oxide/polypropylene-based woven plain weave fabric is placed on the heat- insulating material to prepare a non-woven net material by dry laying and needling reinforcement; the heat-insulating material is one or more of asbestos, rock wool, glass fiber, aluminum silicate fiber, high silica fiber and alumina fiber; step III. preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material: through needling reinforcement, graphene oxide/polypropylene-based reinforced plain weave composite materials are reinforced by needling at front and back (twice) as the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material, wherein the needling density is 90-130 needlings/cm 2, the needling frequency is 220-280 needlings/min, and the fiber net needling speed is 1.8-2.0 m/min; step IV. preparation of a resin composite material: the resin composite material is an epoxy resin: the epoxy resin and a first curing agent are weighed according to a mass ratio of 2:1, and preheated at 45- 60° C for 10 m in, a silane coupling agent with a mass fraction of 3-5% of the epoxy resin and a graphene oxide/N-methylpyrrolidone dispersion (0.5%) with a mass fraction of 3-5% of the epoxy resin are added, and the mixture is stirred for 10 m in and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles in the epoxy resin; an accelerator with a mass fraction of 1-2% of the epoxy resin and acetone are sequentially added into the epoxy resin and stirred and mixed uniformly, the multilayer graphene oxide/polypropylene-based reinforced plain weave composite material is immersed therein, a second curing agent with a mass fraction of 40% of the epoxy resin is added, and the mixture is stirred uniformly and vacuumed at 45-60 0 C for 30-40 m in to remove bubbles; and the mixture is placed in a blast air oven at room temperature for 2 h, and cured at a temperature of 95 C-120 0 C for 4 h to finally obtain the graphene oxide/polypropylene heat-resistant high-strength composite profile. Currently amended
Canceled
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Preparation of a graphene oxide/polypropylene heat-resistant high-strength composite profile using graphene oxide/polypropylene filament fiber (210D/24F) with graphene oxide at 0.3 wt% of polypropylene fiber. Step I: plain weave fabric with warp density 45/5cm, weft density 30/5cm, 500 g/m2, 0.06 mm thickness. Step II: heat-insulating layer at 150 g/m2 and 0.10 mm thickness, combined with GO/PP fabric by dry laying and needle punching. Step III: multilayer composite reinforced by needling at 90 needlings/cm2, 220 needlings/min, fiber net speed 1.8 m/min.
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide/polypropylene heat-resistant high-strength composite profile
Materials described outside the worked examples.
epoxy resin
curing agent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 45–60 °C | — |
Thickness | 0.06–0.2 mm |
silane coupling agent
graphene oxide/N-methylpyrrolidone dispersion
heat-insulating material
graphene oxide/polypropylene heat-resistant high-strength composite profile
| — |
Thickness | 0.1–0.25 mm | — |
silane coupling agent
graphene oxide/N-methylpyrrolidone dispersion
heat-insulating material
graphene oxide/polypropylene heat-resistant high-strength composite profile
| — |
Thickness | 0.1–0.25 mm | — |
silane coupling agent
graphene oxide/N-methylpyrrolidone dispersion
heat-insulating material
graphene oxide/polypropylene heat-resistant high-strength composite profile
| — |
Thickness | 0.1–0.25 mm | — |
silane coupling agent
graphene oxide/N-methylpyrrolidone dispersion
heat-insulating material
graphene oxide/polypropylene heat-resistant high-strength composite profile
| — |
Thickness | 0.1–0.25 mm | — |