CN113930072A - Pressure sensor material - Google Patents

Pressure sensor material Download PDF

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Publication number
CN113930072A
CN113930072A CN202111220424.5A CN202111220424A CN113930072A CN 113930072 A CN113930072 A CN 113930072A CN 202111220424 A CN202111220424 A CN 202111220424A CN 113930072 A CN113930072 A CN 113930072A
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parts
pressure sensor
sensor material
weight
layer
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于斌
许磊
孙辉
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Zhejiang Sci Tech University ZSTU
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Zhejiang Sci Tech University ZSTU
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    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
    • C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
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    • B32—LAYERED PRODUCTS
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    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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    • B32—LAYERED PRODUCTS
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
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    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C08J9/145—Halogen containing compounds containing carbon, halogen and hydrogen only only chlorine as halogen atoms
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    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
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    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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    • B32B2307/00—Properties of the layers or laminate
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    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract

The invention provides a pressure sensor material, which sequentially comprises the following components: the substrate layer is formed by high-temperature and high-pressure die-casting main components of 30-40 parts by weight of high-strength carbon fiber and 25-28 parts by weight of polyimide; the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 50-60 parts of isocyanate, 1-2 parts of foam stabilizer, 0.3-2 parts of catalyst, 8-12 parts of foaming agent, 2-4 parts of water, 3-5 parts of flame retardant and 1-3 parts of wear-resisting agent. The pressure sensor material comprises a substrate layer and a functional layer, realizes the comprehensive realization of the functions of each layer through each layer, and has excellent hardness, flame retardant property and wear resistance.

Description

Pressure sensor material
Technical Field
The invention relates to the technical field of micro-pressure sensors, in particular to a pressure sensor material.
Background
The pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, and relates to a plurality of industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like.
Heavy duty pressure sensors are one type of sensor commonly used in transportation applications to maintain the performance of heavy duty equipment by monitoring the pressure, fluid pressure, flow and level of critical systems such as pneumatics, light duty hydraulics, brake pressure, oil pressure, transmissions, and truck/trailer dampers.
A heavy duty pressure sensor is a pressure measurement device having a housing, a metal pressure interface, and a high level signal output. Many sensors are provided with a circular metal or plastic housing that is cylindrical in appearance, with a pressure port at one end and a cable or connector at the other end. Such heavy duty pressure sensors are often used in extreme temperature and electromagnetic interference environments. The pressure sensor is used in the control system by the client in the industrial and transportation fields, and the pressure measurement and monitoring of the fluid such as cooling liquid or lubricating oil can be realized. Meanwhile, the pressure spike feedback can be timely detected, the problems of system blockage and the like can be found, and therefore a solution can be found immediately.
However, the currently used pressure sensors have low housing hardness, poor wear resistance and no flame retardancy.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a pressure sensor material which can improve the hardness, the wear resistance and the flame retardant property of a pressure sensor. The technical scheme adopted by the invention is as follows:
a pressure sensor material, wherein: the pressure sensor material comprises in sequence:
the substrate layer is formed by high-temperature and high-pressure die-casting main components of 30-40 parts by weight of high-strength carbon fiber and 25-28 parts by weight of polyimide;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 50-60 parts of isocyanate, 1-2 parts of foam stabilizer, 0.3-2 parts of catalyst, 8-12 parts of foaming agent, 2-4 parts of water, 3-5 parts of flame retardant and 1-3 parts of wear-resisting agent.
Preferably, the pressure sensor material, wherein: the base material layer further comprises 16-20 parts of high-density polyethylene and 11-17 parts of high-elasticity rubber.
Preferably, the pressure sensor material, wherein: the high-elasticity rubber comprises 20-25 wt% of meta-fluoroether rubber and 75-80 wt% of cis-1, 4-polyisoprene rubber.
Preferably, the pressure sensor material, wherein: the polyether polyol is selected from polyoxypropylene diol or polyoxypropylene triol.
Preferably, the pressure sensor material, wherein: the isocyanate is selected from one or more of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate and dicyclohexylmethane diisocyanate.
Preferably, the pressure sensor material, wherein: the foam stabilizer comprises 75-80 wt% of fatty acid methyl ester ethoxylate sulfonate, 10-15 wt% of potassium stearate and 5-15 wt% of propylene glycol. The fatty acid methyl ester ethoxylate sulfonate, the potassium stearate and the propylene glycol are synergistically used as the foam stabilizer, so that the pores of the foam microporous material are fine and uniform, and the foam collapse is prevented.
Preferably, the pressure sensor material, wherein: the catalyst is selected from one of N-ethyl morpholine, N, N, N ', N ' -tetramethyl alkylene diamine or N, N ' -diethyl piperazine.
Preferably, the pressure sensor material, wherein: the foaming agent comprises 70-76 wt% of cyclopentane and 24-30 wt% of dichloromethane. Cyclopentane and methylene chloride act synergistically as blowing agents and form uniform pores in the polymer composition.
Preferably, the pressure sensor material, wherein: the flame retardant comprises 30-35 wt% of silicon carbide and 62-64 wt% of Ln4-mNimSiO8And 1-8 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the Ln4- mNimSiO8In the formula, m is more than or equal to 1.6 and less than or equal to 2.2.
Silicon carbide, Ln4-mNimSiO8And N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane as a flame retardant, which act synergistically with each other as an auxiliary agent, the respective contents of which are limited, and below the above-mentioned parts by weight, the corresponding functional effects are reduced, and above the above-mentioned parts by weight, the agglomeration between particles is caused, and sedimentation is initiated, and the flame retardant properties and hardness of the sensor material are reduced, zirconium dioxide, Ln4-mNimSiO8Can improve the wear resistance and hardness of the sensor material, and improve the zirconium dioxide and Ln by N-beta- (aminoethyl) -gamma-aminopropyl methyl dimethoxysilane4-mNimSiO8Compatibility with other materials, thereby improving the overall performance of the sensor material, Ln4-mNimSiO8The range of m will determine the performance of the resulting sensor material, and therefore the value of m should also be limited.
Preferably, the pressure sensor material, wherein: the wear-resisting agent comprises 55-60 wt% of boron oxide and 40-45 wt% of lithium fluoride. The scheme introduces nanoscale boron oxide and lithium fluoride which can exert wear resistance and hardness in a synergistic manner, wherein the boron oxide has outstanding hardness and wear resistance, and the lithium fluoride has excellent wear resistance and flame retardance.
The invention has the advantages that:
(1) the pressure sensor material comprises a substrate layer and a functional layer, realizes the comprehensive realization of the functions of each layer through each layer, and has excellent hardness, flame retardant property and wear resistance.
(2) The pressure sensor material of the present invention is prepared by mixing silicon carbide and Ln4-mNimSiO8And N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane is used as a flame retardant to improve the flame retardant property and hardness of the sensor material, and boron oxide and lithium fluoride are used as wear-resisting agents to play a synergistic role to improve the wear resistance and hardness.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
A pressure sensor material, wherein: the pressure sensor material comprises in sequence:
the high-strength carbon fiber high-temperature high-pressure casting forming material comprises a base material layer and a high-elasticity rubber, wherein the base material layer is formed by adopting 30-40 parts by weight of high-strength carbon fibers and 25-28 parts by weight of polyimide through high-temperature high-pressure casting, the base material layer also comprises 16 parts by weight of high-density polyethylene and 11 parts by weight of high-elasticity rubber, and the high-elasticity rubber comprises 20-25 wt% of vinylidene fluoride rubber and 75-80 wt% of cis-1, 4-polyisoprene rubber;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 50 parts of isocyanate, 1 part of foam stabilizer, 0.3 part of catalyst, 8 parts of foaming agent, 2 parts of water, 3 parts of flame retardant and 1 part of wear-resistant agent.
The polyether polyol is polyoxypropylene glycol; the isocyanate is toluene diisocyanate; the foam stabilizer comprises 75 wt% of fatty acid methyl ester ethoxylateSulfonate, 10 wt% potassium stearate and 15 wt% propylene glycol; the catalyst is N-ethyl morpholine; the foaming agent is 70 wt% of cyclopentane and 30 wt% of dichloromethane; the flame retardant comprises 30 wt% of silicon carbide and 62 wt% of Ln4- mNimSiO8And 8 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the Ln4-mNimSiO8Wherein m is 1.6; the anti-wear agent was 55 wt% boron oxide and 45 wt% lithium fluoride.
Example 2
A pressure sensor material, wherein: the pressure sensor material comprises in sequence:
the high-strength carbon fiber composite material comprises a base material layer and a plurality of layers of rubber layers, wherein the base material layer is formed by 35 parts by weight of high-strength carbon fibers and 26 parts by weight of polyimide through high-temperature high-pressure die-casting, the base material layer also comprises 18 parts by weight of high-density polyethylene and 12 parts by weight of high-elasticity rubber, and the high-elasticity rubber comprises 22 wt% of vinylidene fluoride rubber and 78 wt% of cis-1, 4-polyisoprene rubber;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 56 parts of isocyanate, 1.5 parts of foam stabilizer, 1 part of catalyst, 10 parts of foaming agent, 3 parts of water, 4 parts of flame retardant and 2 parts of wear-resisting agent.
The polyether polyol is polyoxypropylene glycol; the isocyanate is isophorone diisocyanate; the foam stabilizer comprises 78 wt% of fatty acid methyl ester ethoxylate sulfonate, 12 wt% of potassium stearate and 10 wt% of propylene glycol; the catalyst is N, N, N ', N' -tetramethyl alkylene diamine; the foaming agent is 72 wt% of cyclopentane and 28 wt% of dichloromethane; the flame retardant comprises 32 wt% of silicon carbide and 63 wt% of Ln4-mNimSiO8And 5 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the Ln4- mNimSiO8Wherein m is 2; the anti-wear agent was 58 wt% boron oxide and 42 wt% lithium fluoride.
Example 3
A pressure sensor material, wherein: the pressure sensor material comprises in sequence:
the high-strength carbon fiber high-strength polyimide high-temperature high-pressure die-casting forming device comprises a base material layer and a base material layer, wherein the base material layer is formed by adopting main components of 40 parts of high-strength carbon fibers and 28 parts of polyimide through high-temperature high-pressure die-casting, and the base material layer also comprises 20 parts of high-density polyethylene and 17 parts of high-elasticity rubber; the high-elasticity rubber comprises 25 wt% of meta-fluoroether rubber and 75 wt% of cis-1, 4-polyisoprene rubber;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 60 parts of isocyanate, 2 parts of foam stabilizer, 2 parts of catalyst, 12 parts of foaming agent, 4 parts of water, 5 parts of flame retardant and 3 parts of wear-resisting agent.
The polyether polyol is selected from polyoxypropylene diol or polyoxypropylene triol; the isocyanate is diphenylmethane diisocyanate; the foam stabilizer comprises 80 wt% of fatty acid methyl ester ethoxylate sulfonate, 15 wt% of potassium stearate and 5 wt% of propylene glycol; the catalyst is N, N' -diethyl piperazine; the foaming agent is 76 wt% of cyclopentane and 24 wt% of dichloromethane; the flame retardant comprises 35 wt% of silicon carbide and 62 wt% of Ln4-mNimSiO8And 3 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the Ln4-mNimSiO8Wherein m is 2.2; the anti-wear agent is 60 wt% boron oxide and 40 wt% lithium fluoride.
Comparative example 1
The high-strength carbon fiber composite material comprises a base material layer and a plurality of layers of carbon fibers, wherein the base material layer is formed by main components of 30-40 parts by weight of high-strength carbon fibers and 25-28 parts by weight of polyimide through high-temperature high-pressure die-casting, and the base material layer also comprises 16 parts by weight of high-density polyethylene;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 50 parts of isocyanate, 1 part of foam stabilizer, 0.3 part of catalyst, 8 parts of foaming agent, 2 parts of water, 3 parts of flame retardant and 1 part of wear-resistant agent.
The polyether polyol is polyoxypropylene glycol; the isocyanate is toluene diisocyanate; the foam stabilizer comprises 75 wt% of fatty acid methyl ester ethoxylate sulfonate, 10 wt% of potassium stearate and 15 wt% of propylene glycol; the catalyst is N-ethyl morpholine; the foaming agent is 70 wt% of cyclopentane and 30 wt% of dichloromethane; the flame retardant comprises 30 wt% of silicon carbide and 62 wt% of Ln4- mNimSiO8And 8 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the Ln4-mNimSiO8Wherein m is 1.6; the anti-wear agent was 55 wt% boron oxide and 45 wt% lithium fluoride.
Comparative example 2
A pressure sensor material, wherein: the pressure sensor material comprises in sequence:
the high-strength carbon fiber composite material comprises a base material layer and a plurality of layers of rubber layers, wherein the base material layer is formed by 35 parts by weight of high-strength carbon fibers and 26 parts by weight of polyimide through high-temperature high-pressure die-casting, the base material layer also comprises 18 parts by weight of high-density polyethylene and 12 parts by weight of high-elasticity rubber, and the high-elasticity rubber comprises 22 wt% of vinylidene fluoride rubber and 78 wt% of cis-1, 4-polyisoprene rubber;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 56 parts of isocyanate, 1.5 parts of foam stabilizer, 1 part of catalyst, 10 parts of foaming agent, 3 parts of water, 4 parts of flame retardant and 2 parts of wear-resisting agent.
The polyether polyol is polyoxypropylene glycol; the isocyanate is isophorone diisocyanate; the foam stabilizer comprises 78 wt% of fatty acid methyl ester ethoxylate sulfonate, 12 wt% of potassium stearate and 10 wt% of propylene glycol; the catalyst is N, N, N ', N' -tetramethyl alkylene diamine; the foaming agent is 72 wt% of cyclopentane and 28 wt% of dichloromethane; the flame retardant comprises 95 wt% of silicon carbide and 5 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane; the anti-wear agent was 58 wt% boron oxide and 42 wt% lithium fluoride.
Comparative example 3
A pressure sensor material, wherein: the pressure sensor material comprises in sequence:
the high-strength carbon fiber composite material comprises a base material layer and a plurality of layers of rubber layers, wherein the base material layer is formed by 35 parts by weight of high-strength carbon fibers and 26 parts by weight of polyimide through high-temperature high-pressure die-casting, the base material layer also comprises 18 parts by weight of high-density polyethylene and 12 parts by weight of high-elasticity rubber, and the high-elasticity rubber comprises 22 wt% of vinylidene fluoride rubber and 78 wt% of cis-1, 4-polyisoprene rubber;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 56 parts of isocyanate, 1.5 parts of foam stabilizer, 1 part of catalyst, 10 parts of foaming agent, 3 parts of water, 4 parts of flame retardant and 2 parts of wear-resisting agent.
The polyether polyol is polyoxypropylene glycol; the isocyanate is isophorone diisocyanate; the foam stabilizer comprises 78 wt% of fatty acid methyl ester ethoxylate sulfonate, 12 wt% of potassium stearate and 10 wt% of propylene glycol; the catalyst is N, N, N ', N' -tetramethyl alkylene diamine; the foaming agent is 72 wt% of cyclopentane and 28 wt% of dichloromethane; the flame retardant comprises 32 wt% of silicon carbide and 63 wt% of Ln4-mNimSiO8Said Ln4-mNimSiO8Wherein m is 2; the anti-wear agent was 58 wt% boron oxide and 42 wt% lithium fluoride.
Comparative example 4
A pressure sensor material, wherein: the pressure sensor material comprises in sequence:
the high-strength carbon fiber high-strength polyimide high-temperature high-pressure die-casting forming device comprises a base material layer and a base material layer, wherein the base material layer is formed by adopting main components of 40 parts of high-strength carbon fibers and 28 parts of polyimide through high-temperature high-pressure die-casting, and the base material layer also comprises 20 parts of high-density polyethylene and 17 parts of high-elasticity rubber; the high-elasticity rubber comprises 25 wt% of meta-fluoroether rubber and 75 wt% of cis-1, 4-polyisoprene rubber;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 60 parts of isocyanate, 2 parts of foam stabilizer, 2 parts of catalyst, 12 parts of foaming agent, 4 parts of water, 5 parts of flame retardant and 3 parts of wear-resisting agent.
The polyether polyol is selected from polyoxypropylene diol or polyoxypropylene triol; the isocyanate is diphenylmethane diisocyanate; the foam stabilizer comprises 80 wt% of fatty acid methyl ester ethoxylate sulfonate, 15 wt% of potassium stearate and 5 wt% of propylene glycol; the catalyst is N, N' -diethyl piperazine; the foaming agent is 76 wt% of cyclopentane and 24 wt% of dichloromethane; the flame retardant comprises 35 wt% of silicon carbide and 62 wt% of Ln4-mNimSiO8And 3 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the Ln4-mNimSiO8Wherein m is 2.2; the wear-resisting agent is boron oxide.
The results of the performance tests of examples 1 to 3 and comparative examples 1 to 4 are shown below, and the results are shown in Table 1
TABLE 1
Figure BDA0003312383860000051
Comparing examples 1-3 with comparative examples 1-4, it can be seen that the pressure sensor material of the present invention has excellent hardness, wear resistance and flame retardancy.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. A pressure sensor material, characterized by: the pressure sensor material comprises in sequence:
the substrate layer is formed by high-temperature and high-pressure die-casting main components of 30-40 parts by weight of high-strength carbon fiber and 25-28 parts by weight of polyimide;
the multifunctional layer is arranged on the upper surface and the lower surface of the base material layer and comprises the following components in parts by weight: 100 parts of polyether polyol, 50-60 parts of isocyanate, 1-2 parts of foam stabilizer, 0.3-2 parts of catalyst, 8-12 parts of foaming agent, 2-4 parts of water, 3-5 parts of flame retardant and 1-3 parts of wear-resisting agent.
2. The pressure sensor material of claim 1, wherein: the base material layer further comprises 16-20 parts of high-density polyethylene and 11-17 parts of high-elasticity rubber.
3. The pressure sensor material of claim 2, wherein: the high-elasticity rubber comprises 20-25 wt% of meta-fluoroether rubber and 75-80 wt% of cis-1, 4-polyisoprene rubber.
4. The pressure sensor material of claim 1, wherein: the polyether polyol is selected from polyoxypropylene diol or polyoxypropylene triol.
5. The pressure sensor material of claim 1, wherein: the isocyanate is selected from one or more of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate and dicyclohexylmethane diisocyanate.
6. The pressure sensor material of claim 1, wherein: the foam stabilizer comprises 75-80 wt% of fatty acid methyl ester ethoxylate sulfonate, 10-15 wt% of potassium stearate and 5-15 wt% of propylene glycol.
7. The pressure sensor material of claim 1, wherein: the catalyst is selected from one of N-ethyl morpholine, N, N, N ', N ' -tetramethyl alkylene diamine or N, N ' -diethyl piperazine.
8. The pressure sensor material of claim 1, wherein: the foaming agent comprises 70-76 wt% of cyclopentane and 24-30 wt% of dichloromethane.
9. The pressure sensor material of claim 1, wherein: the flame retardant comprises 30-35 wt% of silicon carbide and 62-64 wt% of Ln4-mNimSiO8And 1-8 wt% of N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, the Ln4-mNimSiO8In the formula, m is more than or equal to 1.6 and less than or equal to 2.2.
10. The pressure sensor material of claim 1, wherein: the wear-resisting agent comprises 55-60 wt% of boron oxide and 40-45 wt% of lithium fluoride.
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Citations (6)

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Publication number Priority date Publication date Assignee Title
CN104228246A (en) * 2013-06-13 2014-12-24 美国圣戈班性能塑料公司 Foam sealing gasket based on polyurethane dispersion liquid and bonding adhesive tape
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CN111551290A (en) * 2020-05-18 2020-08-18 西安理工大学 Wearable flexible capacitive pressure sensor and preparation method thereof
JP2021109435A (en) * 2020-01-15 2021-08-02 株式会社イノアック技術研究所 Aerogel laminate structure and method for producing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228246A (en) * 2013-06-13 2014-12-24 美国圣戈班性能塑料公司 Foam sealing gasket based on polyurethane dispersion liquid and bonding adhesive tape
CN104341771A (en) * 2014-10-09 2015-02-11 浙江新力塑料股份有限公司 Wear-resisting anti-aging polyurethane plastic and preparation method thereof
CN109721931A (en) * 2018-11-30 2019-05-07 徐建 A kind of wear-resisting thermoplastic elastomer
CN109627413A (en) * 2018-12-07 2019-04-16 上海应用技术大学 A kind of high abrasion polyurethane material and preparation method thereof
JP2021109435A (en) * 2020-01-15 2021-08-02 株式会社イノアック技術研究所 Aerogel laminate structure and method for producing the same
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