CN111572104A - Low-cost composite core pipe and manufacturing method thereof - Google Patents

Low-cost composite core pipe and manufacturing method thereof Download PDF

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Publication number
CN111572104A
CN111572104A CN202010475188.0A CN202010475188A CN111572104A CN 111572104 A CN111572104 A CN 111572104A CN 202010475188 A CN202010475188 A CN 202010475188A CN 111572104 A CN111572104 A CN 111572104A
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China
Prior art keywords
parts
resin system
low
composite core
curing
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CN202010475188.0A
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Chinese (zh)
Inventor
孟玲宇
杨志忠
费春东
裴放
赵亮
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Shanghai Shenyong Electromechanical Equipment Co ltd
Harbin FRP Institute Co Ltd
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Shanghai Shenyong Electromechanical Equipment Co ltd
Harbin FRP Institute Co Ltd
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Priority to CN202010475188.0A priority Critical patent/CN111572104A/en
Publication of CN111572104A publication Critical patent/CN111572104A/en
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    • 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
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/545—Perforating, cutting or machining during or after moulding
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • 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
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2307/538—Roughness
    • 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
    • B32B2307/552—Fatigue strength
    • 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
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • C08J2363/02—Polyglycidyl ethers of bis-phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/06—Unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/06—Elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass

Abstract

The invention relates to a low-cost composite core pipe and a manufacturing method thereof, in particular to a composite core pipe for winding polyester films, polyvinyl chloride films, polyethylene films and the like and a manufacturing method thereof, and aims to solve the problems that the existing film winding paper core pipe is insufficient in rigidity, a steel core pipe is heavy in self weight and difficult to repair due to collision. The low-cost composite core pipe is formed by winding an outer surface layer on an inner structure layer to form a pipe body in a composite mode, wherein the inner structure layer is made of 20-50 parts by mass of a normal-temperature curing resin system and 50-80 parts by mass of fibers in a composite mode; the outer surface layer is made of 40-80 parts by mass of a normal-temperature curing resin system, 20-60 parts by mass of a surface felt and black dye paste. The composite core pipe has the advantages of strong bearing capacity, light weight, high surface roughness, collision repairability and the like.

Description

Low-cost composite core pipe and manufacturing method thereof
Technical Field
The present invention relates to a core tube of a composite material for winding a polyester film, a polyvinyl chloride film, a polyethylene film, etc., and a method for manufacturing the same.
Background
In the production and transportation process of industries such as polyester films, polyvinyl chloride films, polyethylene films and the like, the films are wound on a core pipe through equipment, the core pipe bears all the weight of the films, and the weight of each roll of the films is about 10 kg-1000 kg. Core tubes are therefore required to have high stiffness, light weight, fatigue resistance, high surface roughness, corrosion resistance and repairability. The core tube, which is generally widely used, is a paper core, and has the disadvantages of insufficient rigidity, poor corrosion resistance and the like. The other core pipe is made of steel, and has a plurality of defects, such as great weight, easy corrosion and the like. The novel core pipe is made of fiber reinforced resin composite materials, and the core pipe is formed through a fiber winding process, so that the novel core pipe gradually replaces a paper or steel core pipe due to the advantages of light weight, high strength, corrosion resistance and the like, but the manufacturing cost is higher, and the surface of the core pipe cannot be repaired after being collided by external force.
Disclosure of Invention
The invention aims to solve the problems that the existing film winding paper core pipe is insufficient in rigidity, a steel core pipe is heavy in self weight and difficult to repair due to collision, and provides a low-cost composite core pipe and a manufacturing method thereof.
The low-cost composite core pipe is formed by winding an outer surface layer on an inner structure layer to form a pipe body in a composite mode, wherein the inner structure layer is made of 20-50 parts by mass of a normal-temperature curing resin system and 50-80 parts by mass of fibers in a composite mode; the outer surface layer is made of 40-80 parts by mass of a normal-temperature curing resin system, 20-60 parts by mass of a surface felt and black dye paste in a compounding manner;
the normal temperature curing resin system is an unsaturated polyester resin system or an epoxy resin system, the unsaturated polyester resin system is formed by mixing unsaturated polyester resin, an initiator and an accelerator, and the epoxy resin system is formed by mixing epoxy resin and a curing agent.
The manufacturing method of the low-cost composite core pipe is realized according to the following steps:
firstly, coating a release agent on the surface of a core mold, and then uniformly coating a normal-temperature curing resin system on the surface of the core mold;
secondly, curing the resin system at normal temperature to soak fibers to obtain resin soaked fibers, winding the resin soaked fibers on a core mold (to form a certain thickness) through a winding machine, then manually winding demolding cloth, carrying out oil bath circulation heating on an inner cavity of the core mold to carry out curing treatment, and removing the demolding cloth after curing is finished to obtain the core mold with an inner structure layer;
thirdly, mixing the normal-temperature curing resin system and the black dye paste, uniformly coating the mixture on the surface of the inner structure layer, then winding the surface felt on the inner structure layer and soaking the surface felt by the resin, circularly heating the inner cavity of the core mould in an oil bath for curing, and demoulding to obtain the composite core pipe;
and fourthly, after the core tube is cut in a fixed length mode, grinding the surface of the composite core tube by using a cylindrical grinding machine to obtain the low-cost composite core tube.
The fiber reinforced composite core pipe has the characteristics of high rigidity, light weight, fatigue resistance, higher surface roughness, corrosion resistance, repairability and the like. The composite material core pipe is composed of two parts, wherein the inner layer is a structural layer of a fiber reinforced resin matrix composite material, and the outer layer is a surface layer of a fiber felt reinforced resin matrix composite material. The core tube has the advantages of strong bearing capacity, light weight, high surface roughness, collision repairability and the like, after the surface of the core tube is collided, a normal-temperature cured resin system of the formed core tube is used for filling the collision position, the resin system is bonded to the collision position after being cured, and the salient points of the repair position can be repaired by polishing with 1000-mesh abrasive paper.
The specific technical indexes of the low-cost composite core pipe are as follows: the surface roughness of the core tube is more than 1.6, the bearing weight is within 1000kg, the cylindricity is within 0.3mm, the circumferential runout is within 0.3mm, the axial bending strength is more than 100MPa, the circumferential bending strength is more than 300MPa, the axial bending modulus is more than 10GPa, and the circumferential bending modulus is more than 18 GPa.
Drawings
FIG. 1 is a schematic structural view of a low cost composite core tube of the present invention, wherein 1 is an inner structural layer, and 2 is an outer surface layer.
Detailed Description
The first embodiment is as follows: the low-cost composite core pipe is formed by winding an outer surface layer 2 on an inner structure layer 1 to form a pipe body in a composite mode, wherein the inner structure layer 1 is made of 20-50 parts by mass of a normal-temperature curing resin system and 50-80 parts by mass of fibers in a composite mode; the outer surface layer 2 is formed by compounding 40-80 parts by mass of a normal-temperature curing resin system, 20-60 parts by mass of a surface felt and black dye paste;
the normal temperature curing resin system is an unsaturated polyester resin system or an epoxy resin system, the unsaturated polyester resin system is formed by mixing unsaturated polyester resin, an initiator and an accelerator, and the epoxy resin system is formed by mixing epoxy resin and a curing agent.
The second embodiment is as follows: the difference between the present embodiment and the first embodiment is that the thickness of the inner structure layer 1 is 4-10 mm, and the thickness of the outer surface layer is 1-5 mm.
The third concrete implementation mode: the present embodiment is different from the first or second embodiment in that the fiber is a glass fiber or a carbon fiber.
The fourth concrete implementation mode: this embodiment is different from one of the first to third embodiments in that the type of the unsaturated polyester resin is FL-199 or FL-883.
The fifth concrete implementation mode: this embodiment differs from one of the first to fourth embodiments in that the epoxy resin is epoxy resin type E-51 or E-54.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is that the surfacing mat is a glass fiber surfacing mat or a carbon fiber surfacing mat.
The specification of the surfacing mat of the present embodiment is 30 to 100g/m of areal density2。
The seventh embodiment: the embodiment is different from one of the first to the sixth embodiment in that the unsaturated polyester resin system is formed by mixing 100 parts of unsaturated polyester resin, 1 to 5 parts of initiator and 0.1 to 0.5 part of accelerator according to the mass parts, wherein the initiator is methyl ethyl ketone peroxide, and the accelerator is cobalt naphthenate.
The specific implementation mode is eight: the difference between the embodiment and one of the first to seventh embodiments is that the epoxy resin system is formed by mixing 100 parts of epoxy resin and 80-100 parts of curing agent according to the mass part, and the curing agent is polyamide 651.
The specific implementation method nine: the manufacturing method of the low-cost composite core pipe of the embodiment is implemented according to the following steps:
firstly, coating a release agent on the surface of a core mold, and then uniformly coating a normal-temperature curing resin system on the surface of the core mold;
secondly, curing the resin system at normal temperature to soak fibers to obtain resin soaked fibers, winding the resin soaked fibers on a core mold (to form a certain thickness) through a winding machine, then manually winding demolding cloth, carrying out oil bath circulation heating on an inner cavity of the core mold to carry out curing treatment, and removing the demolding cloth after curing is finished to obtain the core mold with an inner structure layer;
thirdly, mixing the normal-temperature curing resin system and the black dye paste, uniformly coating the mixture on the surface of the inner structure layer, then winding the surface felt on the inner structure layer and soaking the surface felt by the resin, circularly heating the inner cavity of the core mould in an oil bath for curing, and demoulding to obtain the composite core pipe;
and fourthly, after the core tube is cut in a fixed length mode, grinding the surface of the composite core tube by using a cylindrical grinding machine to obtain the low-cost composite core tube.
The detailed implementation mode is ten: the difference between the present embodiment and the ninth embodiment is that the curing treatment in the second step and the third step is performed at a temperature of 40-60 ℃ for 1-2 hours.
Example 1: the manufacturing method of the low-cost composite core tube of the embodiment is implemented according to the following steps:
coating a release agent on the surface of a cylindrical core mold, uniformly stirring 100 parts of vinyl ester resin, 3 parts of an initiator and 0.5 part of an accelerator according to the mass parts to obtain a normal-temperature curing resin system, and uniformly coating the normal-temperature curing resin system on the surface of the core mold;
secondly, impregnating glass fibers in a normal-temperature curing resin system to obtain resin impregnated fibers, alternately winding the resin impregnated fibers on a core mold according to a spiral shape and a circular direction by a winding machine until the wall thickness of the core tube reaches the specified thickness of a structural layer in the core tube, then manually winding demolding cloth, circularly heating the inner cavity of the core mold in an oil bath for curing at the temperature of 60 ℃ for 2 hours, and removing the demolding cloth after curing to obtain the core mold with an inner structural layer;
uniformly mixing 100 parts of vinyl ester resin, 3 parts of initiator, 0.5 part of accelerator and 5 parts of black dye paste according to the mass parts, uniformly coating the mixture on the surface of the inner structure layer, then winding the surface felt of the glass fiber on the inner structure layer and soaking the surface felt by the resin, circularly heating the inner cavity of the core mold in an oil bath for curing for 2 hours at the temperature of 60 ℃, and obtaining the composite core pipe after demolding;
and fourthly, grinding the surface of the composite core pipe by adopting a cylindrical grinder to obtain the low-cost composite core pipe.
In the present embodiment, the mass ratio of the glass fiber to the normal temperature curing resin system in the inner structure layer is 71: 29, the mass ratio of the glass fiber surface felt in the outer surface layer to the normal-temperature curing resin system is 20: 80.
the axial bending strength of the low-cost composite core tube composite material prepared by the embodiment is 120MPa, the circumferential bending strength is 330MPa, the axial bending modulus is 12GPa, and the circumferential bending modulus is 23GPa, so that the composite core tube composite material has excellent mechanical properties.
Example 2: the manufacturing method of the low-cost composite core tube of the embodiment is implemented according to the following steps:
coating a release agent on the surface of a cylindrical core mold, uniformly stirring 100 parts of epoxy resin and 80 parts of a curing agent according to the mass parts to obtain a normal-temperature curing resin system, and uniformly coating the normal-temperature curing resin system on the surface of the core mold;
secondly, impregnating glass fibers in a normal-temperature curing resin system to obtain resin impregnated fibers, alternately winding the resin impregnated fibers on a core mold according to a spiral shape and a circular direction by a winding machine, then manually winding demolding cloth, circularly heating the inner cavity of the core mold in an oil bath at the temperature of 60 ℃ for curing for 2 hours, and removing the demolding cloth after curing to obtain the core mold with an inner structure layer;
uniformly mixing 100 parts of epoxy resin, 80 parts of curing agent and 5 parts of black dye paste according to the mass parts, uniformly coating the mixture on the surface of the inner structure layer, then winding the surface felt of the glass fiber on the inner structure layer and soaking the surface felt by the resin, circularly heating the inner cavity of the core mold in an oil bath for curing treatment, curing for 2 hours at the temperature of 60 ℃, and demolding to obtain the composite core tube;
and fourthly, grinding the surface of the composite core pipe by adopting a cylindrical grinder to obtain the low-cost composite core pipe.
In the present embodiment, the mass ratio of the glass fiber to the normal temperature curing resin system in the inner structure layer is 68: 32, the mass ratio of the glass fiber surface felt in the outer surface layer to the normal temperature curing resin system is 20: 80.
example 3: the manufacturing method of the low-cost composite core tube of the embodiment is implemented according to the following steps:
coating a release agent on the surface of a cylindrical core mold, uniformly stirring 100 parts of epoxy resin and 80 parts of a curing agent according to the mass parts to obtain a normal-temperature curing resin system, and uniformly coating the normal-temperature curing resin system on the surface of the core mold;
secondly, impregnating carbon fibers in a normal-temperature curing resin system to obtain resin-impregnated fibers, alternately winding the resin-impregnated fibers on a core mold in a spiral shape and a circular shape through a winding machine, then manually winding demolding cloth, circularly heating the inner cavity of the core mold in an oil bath at the temperature of 60 ℃ for curing for 2 hours, and removing the demolding cloth after curing is finished to obtain the core mold with an inner structure layer;
uniformly mixing 100 parts of epoxy resin, 80 parts of curing agent and 5 parts of black dye paste according to the mass parts, uniformly coating the mixture on the surface of the inner structure layer, then winding the surface felt of the glass fiber on the inner structure layer and soaking the surface felt by the resin, circularly heating the inner cavity of the core mold in an oil bath for curing treatment, curing for 2 hours at the temperature of 60 ℃, and demolding to obtain the composite core tube;
and fourthly, grinding the surface of the composite core pipe by adopting a cylindrical grinder to obtain the low-cost composite core pipe.
Example 4: this example differs from example 1 in that the second ambient temperature curing resin system impregnates carbon fibers to obtain resin impregnated fibers.

Claims (10)

1. A low-cost composite material core pipe is characterized in that the low-cost composite material core pipe is formed by winding an outer surface layer on an inner structure layer and compounding the outer surface layer and the inner structure layer to form a pipe body, wherein the inner structure layer is made of 20-50 parts by mass of a normal-temperature curing resin system and 50-80 parts by mass of fibers; the outer surface layer is made of 40-80 parts by mass of a normal-temperature curing resin system, 20-60 parts by mass of a surface felt and black dye paste in a compounding manner;
the normal temperature curing resin system is an unsaturated polyester resin system or an epoxy resin system, the unsaturated polyester resin system is formed by mixing unsaturated polyester resin, an initiator and an initiator accelerator, and the epoxy resin system is formed by mixing epoxy resin and a curing agent.
2. The low cost composite core tube according to claim 1 wherein the inner structural layer has a thickness of 4 to 10mm and the outer surface layer has a thickness of 1 to 5 mm.
3. The low cost composite core tube of claim 1 wherein the fibers are glass or carbon fibers.
4. A low cost composite core tube according to claim 1 wherein the unsaturated polyester resin is of the type FL-199 or FL-883.
5. A low cost composite core tube according to claim 1 wherein the epoxy resin type is epoxy resin type E-51 or E-54.
6. The low cost composite core tube of claim 1 wherein the veil is a glass fiber veil or a carbon fiber veil.
7. The low-cost composite core pipe according to claim 1 is characterized in that the unsaturated polyester resin system is formed by mixing 100 parts of unsaturated polyester resin, 1-5 parts of initiator and 0.1-0.5 part of initiator accelerator according to parts by mass, wherein the initiator is methyl ethyl ketone peroxide, and the initiator accelerator is cobalt naphthenate.
8. The low-cost composite core tube of claim 1, wherein the epoxy resin system is formed by mixing 100 parts of epoxy resin and 80-100 parts of curing agent by mass, and the curing agent is polyamide 651.
9. The manufacturing method of the low-cost composite core pipe is characterized by being realized according to the following steps:
firstly, coating a release agent on the surface of a core mold, and then uniformly coating a normal-temperature curing resin system on the surface of the core mold;
secondly, curing the resin system at normal temperature to soak fibers to obtain resin soaked fibers, winding the resin soaked fibers on a core mold through a winding machine, then manually winding demolding cloth, circularly heating the inner cavity of the core mold in an oil bath to perform curing treatment, and removing the demolding cloth after curing to obtain the core mold with an inner structure layer;
thirdly, mixing the normal-temperature curing resin system and the black dye paste, uniformly coating the mixture on the surface of the inner structure layer, then winding the surface felt on the inner structure layer and soaking the surface felt by the resin, circularly heating the inner cavity of the core mould in an oil bath for curing, and demoulding to obtain the composite core pipe;
and fourthly, after the core tube is cut in a fixed length mode, grinding the surface of the composite core tube by using a cylindrical grinding machine to obtain the low-cost composite core tube.
10. The method for manufacturing a low-cost composite core tube according to claim 9, wherein the curing treatment in the second step and the third step is performed at a temperature of 40 to 60 ℃ for 1 to 2 hours.
CN202010475188.0A 2020-05-29 2020-05-29 Low-cost composite core pipe and manufacturing method thereof Pending CN111572104A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114701918A (en) * 2022-04-14 2022-07-05 东莞高而高塑胶制品有限公司 Anti-static winding core pipe and production process thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2642481Y (en) * 2003-07-16 2004-09-22 合肥工业大学 Bamboo plastic composite pipes
CN101004230A (en) * 2006-01-18 2007-07-25 曾建祥 Fiber wrapped pipeline made from composite material
CN101177520A (en) * 2007-10-29 2008-05-14 娄爱娟 Special composite material and uses thereof
CN102990942A (en) * 2012-12-24 2013-03-27 烟台泰和新材料股份有限公司 Vacuum perfusion forming method of p-aramid fiber composite material workpiece
CN104006229A (en) * 2014-06-17 2014-08-27 四川全丰玻璃钢科技有限公司 Stainless steel belt composite pipe and manufacturing method thereof
CN104405962A (en) * 2014-11-08 2015-03-11 湖南潇湘源科技开发有限责任公司 High-strength glass fiber-reinforced plastic pipeline and production method thereof
CN105419229A (en) * 2015-11-05 2016-03-23 平高集团有限公司 Winding pipe for hollow composite insulator and preparation method of winding pipe for hollow composite insulator
JP2016132519A (en) * 2015-01-16 2016-07-25 株式会社栗本鐵工所 Winding core and method for producing winding core

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2642481Y (en) * 2003-07-16 2004-09-22 合肥工业大学 Bamboo plastic composite pipes
CN101004230A (en) * 2006-01-18 2007-07-25 曾建祥 Fiber wrapped pipeline made from composite material
CN101177520A (en) * 2007-10-29 2008-05-14 娄爱娟 Special composite material and uses thereof
CN102990942A (en) * 2012-12-24 2013-03-27 烟台泰和新材料股份有限公司 Vacuum perfusion forming method of p-aramid fiber composite material workpiece
CN104006229A (en) * 2014-06-17 2014-08-27 四川全丰玻璃钢科技有限公司 Stainless steel belt composite pipe and manufacturing method thereof
CN104405962A (en) * 2014-11-08 2015-03-11 湖南潇湘源科技开发有限责任公司 High-strength glass fiber-reinforced plastic pipeline and production method thereof
JP2016132519A (en) * 2015-01-16 2016-07-25 株式会社栗本鐵工所 Winding core and method for producing winding core
CN105419229A (en) * 2015-11-05 2016-03-23 平高集团有限公司 Winding pipe for hollow composite insulator and preparation method of winding pipe for hollow composite insulator

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
张凤翻等编著: "《热固性树脂基复合材料预浸料使用手册》", 30 June 2019, 北京：中国建材工业出版社 *
杨世英等编著: "《工程塑料手册》", 31 August 1994, 北京：中国纺织出版社 *
王禹阶主编: "《玻璃钢与复合材料的生产及应用 有机、无机玻璃钢及其相关材料的综述》", 30 November 2005, 合肥：合肥工业大学出版社 *
车剑飞等编: "《复合材料及其工程应用》", 31 August 2006, 北京：机械工业出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114701918A (en) * 2022-04-14 2022-07-05 东莞高而高塑胶制品有限公司 Anti-static winding core pipe and production process thereof

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