CN112959750A - Antibacterial glass fiber reinforced plastic wood-grain-like profile and preparation method thereof - Google Patents

Antibacterial glass fiber reinforced plastic wood-grain-like profile and preparation method thereof Download PDF

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Publication number
CN112959750A
CN112959750A CN202110170468.5A CN202110170468A CN112959750A CN 112959750 A CN112959750 A CN 112959750A CN 202110170468 A CN202110170468 A CN 202110170468A CN 112959750 A CN112959750 A CN 112959750A
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glass fiber
surface layer
grain
wood
reinforced plastic
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CN112959750B (en
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柯孙苗
柯贤在
郭永刚
沈和春
庄荣东
时路宽
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Fujian Haohua Zhongyi Frp Co ltd
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Fujian Haohua Zhongyi Frp Co ltd
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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
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • 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
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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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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    • 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
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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    • B32—LAYERED PRODUCTS
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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
    • 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
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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
    • B32B5/22—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
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • 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
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—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
    • 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
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester 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
    • 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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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • 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
    • B32B2307/30—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
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
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    • B32—LAYERED PRODUCTS
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    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
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    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
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    • C—CHEMISTRY; METALLURGY
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    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

Abstract

The invention relates to the technical field of glass fiber reinforced plastics, and provides an antibacterial glass fiber reinforced plastic wood-grain-like profile and a preparation method thereof, wherein the antibacterial glass fiber reinforced plastic wood-grain-like profile comprises a knitted felt inner surface layer, a fiber yarn reinforcing layer, a knitted felt outer surface layer and a wood-grain-like surface layer, the fiber yarn reinforcing layer is formed by feeding glass fiber coarse sand into a glue dipping tank filled with a composite pultrusion resin solution under the external force traction, and the composite pultrusion resin solution is formed by dipping the glass fiber coarse sand in the composite pultrusion resin solution, and comprises the following raw materials: the fiber yarn reinforced layer is sandwiched between the inner surface layer and the outer surface layer of the knitted felt, the outer surface layer of the knitted felt is provided with a wood grain imitation surface layer, and the wood grain imitation surface layer is a polyester surface felt printed with colorful wood grain textures. Which solves the problem that the glass fiber reinforced plastic section bar in the prior art does not have antibacterial property.

Description

Antibacterial glass fiber reinforced plastic wood-grain-like profile and preparation method thereof
Technical Field
The invention relates to the technical field of glass fiber reinforced plastics, in particular to an antibacterial glass fiber reinforced plastic wood-grain-like profile and a preparation method thereof.
Background
Public infrastructures such as guardrails and grids are needed in outdoor places, and most of the public infrastructures are made of wood or metal materials. Although the wood material is environment-friendly and beautiful and is easy to process, the wood material has poor flame retardance, is easy to corrode and resist worm damage and is dry-shrinkage and wet-expansion. The metal material has good heat resistance, high mechanical strength and good dimensional stability, but is easy to rust, heavy in weight and high in manufacturing cost. The wood-plastic composite material has the advantages of wood and plastic, is strong in plasticity, environment-friendly and recyclable, but is fragile in texture, low in strength and short in service life.
The glass fiber and its product are used as reinforcing material, and the synthetic resin is used as matrix, and the material is made up by using composite process, and is called glass fibre reinforced plastic. The glass fiber reinforced plastic section (pultrusion process) is a section product which is obtained by passing glass fiber fully impregnated with resin mixed liquor and a product thereof through a forming die, heating and curing the glass fiber in a die cavity, and continuously pulling out the glass fiber and the product under the action of the pulling force of a traction mechanism. The glass fiber reinforced plastic section has the advantages of light weight, corrosion resistance, good electrical insulation performance, one-step forming and the like, and can be widely applied to public facilities in outdoor places such as parks, squares, clean water platforms and the like. Chinese patent application No.: 201910645021.1 discloses a low-cost light aging resistant pultruded fiberglass reinforced plastic material and a preparation method thereof, comprising the following steps: s1, painting paint oil on the dry reinforced fibers which are dragged to advance by a traction machine of pultrusion equipment; s2, the reinforced fiber coated with the paint oil enters a resin glue tank to be dipped under the drive of a tractor; s3, continuously feeding the reinforced fibers immersed with the paint oil and the resin glue solution into a high-temperature die under the drive of a tractor, and curing and molding; and S4, taking out the die and naturally cooling. According to the invention, the paint phase is added in the molding process, so that light rays are prevented from entering the joint of the resin and the fiber, and the prepared pultruded glass fiber reinforced plastic material has the advantage of lower cost on the premise of achieving the same aging performance. Influenced by current new crown epidemic situation, personnel constantly promote to public health's attention degree, and public places personnel such as park, square are intensive, and the bacterium is bred easily to the cleaning and disinfecting not enough, has the hidden danger of endangering human health. However, the existing glass fiber reinforced plastic section bar has no antibacterial property and can not meet the requirements of people.
Disclosure of Invention
Therefore, aiming at the above content, the invention provides an antibacterial glass fiber reinforced plastic wood-like grain profile, which solves the problem that the glass fiber reinforced plastic profile in the prior art does not have antibacterial property.
The invention also aims to provide a preparation method of the antibacterial glass fiber reinforced plastic wood-like profile.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the antibacterial glass fiber reinforced plastic wood-like profile comprises a knitted felt inner surface layer, a fiber yarn enhancement layer, a knitted felt outer surface layer and a wood-like surface layer, wherein the fiber yarn enhancement layer is formed by conveying glass fiber coarse sand into a glue dipping tank filled with a composite pultrusion resin solution under the traction of external force, and impregnating the glass fiber coarse sand with the composite pultrusion resin solution, wherein the composite pultrusion resin solution comprises the following raw materials: the fiber yarn reinforced layer is sandwiched between the inner surface layer and the outer surface layer of the knitted felt, the outer surface layer of the knitted felt is provided with a wood grain imitation surface layer, and the wood grain imitation surface layer is a polyester surface felt printed with colorful wood grain textures.
The further improvement is that: the mass ratio of the unsaturated polyester resin, the curing agent, the filler, the color paste, the negative oxygen ion powder, the dispersant, the wetting agent and the release agent is 30-40:1.5-3:25-35:4-6:0.6-1.8:0.15-0.3:0.2-0.4: 0.1-0.3.
The further improvement is that: the unsaturated polyester resin is m-benzene type unsaturated polyester resin, and the viscosity is 700-1100mpa & s.
The further improvement is that: the curing agent is prepared by mixing any one or more than two of tert-butyl peroxybenzoate, methyl ethyl ketone peroxide or di-tert-butyl peroxide in any ratio.
The further improvement is that: the curing agent is prepared by mixing tert-butyl peroxybenzoate, methyl ethyl ketone peroxide and di-tert-butyl peroxide according to the mass ratio of 1.5-3:0.6-1.2: 0.8-1.5.
The further improvement is that: the filler is aluminum hydroxide, and the mesh number of the aluminum hydroxide is 1000-1200 meshes.
The further improvement is that: the dispersing agent is formed by mixing one or two of acrylate block polymer and polyacrylate dispersing agent in any ratio.
The further improvement is that: the release agent is stearate.
The further improvement is that: the wetting agent is any one of BYK-307, BYK-310 and BYK-347.
The further improvement is that: the mass percentage of the glass fiber coarse sand in the fiber yarn reinforcing layer is 80-85%, and the mass percentage of the composite pultrusion resin is 15-20%.
The further improvement is that: the composite pultrusion resin solution also comprises an anti-ultraviolet absorbent, and the addition amount of the anti-ultraviolet absorbent is 0.3-0.5% of that of the unsaturated polyester resin.
The further improvement is that: the composite pultrusion resin solution also comprises polyvinylpyrrolidone, and the addition amount of the polyvinylpyrrolidone is 1-3% of the resin.
The further improvement is that: the thickness of the inner surface layer of the knitted felt is 0.5-1mm, the thickness of the fiber yarn reinforced layer is 1.5-3mm, the thickness of the outer surface layer of the knitted felt is 0.5-1mm, and the thickness of the wood grain-like surface layer is 0.2 mm.
The preparation method of the antibacterial glass fiber reinforced plastic wood-like profile comprises the following steps:
s1, preparation of the composite pultrusion resin solution:
adding a filler, color paste, negative oxygen ion powder, a dispersing agent, a wetting agent and a release agent into unsaturated polyester resin, stirring and mixing for 40-60min, adding a curing agent, continuously stirring and mixing for 15-30min, then treating with ultrasonic waves, wherein the ultrasonic wave output power is 800 plus one hundred thousand (W), and the ultrasonic treatment time is 10-20min to obtain a composite pultrusion resin solution, and pouring the composite pultrusion resin solution into a gum dipping tank;
s2, preparing the antibacterial glass fiber reinforced plastic wood-like profile:
leading out glass fiber coarse sand from a yarn cylinder, uniformly and neatly arranging the glass fiber coarse sand, and conveying the glass fiber yarn and the two layers of knitting felts into a glue dipping tank;
infiltrating a composite pultrusion resin solution, then jointly penetrating through a preforming device, placing glass fiber grit between two layers of knitted felts to form an inner surface layer of the knitted felt, a fiber yarn reinforcing layer and an outer surface layer of the knitted felt which are sequentially distributed from inside to outside, compounding a polyester surface felt printed with colorful wood grain textures on the outer surface layer of the knitted felt to form a wood grain-like surface layer, forming the approximate shape of a section bar through the preforming device, and simultaneously extruding redundant resin;
then entering a mould, heating, curing and forming;
and drawing and extruding from the die after cooling, cutting and trimming to obtain the finished product of the antibacterial glass fiber reinforced plastic wood-like profile.
The further improvement is that: the method is characterized in that a segmented heating mode is adopted in the mold for curing and molding, the first-segment heating and curing temperature is 100-plus-110 ℃, the second-segment heating and curing temperature is 120-plus-130 ℃, and the third-segment heating and curing temperature is 110-plus-120 ℃.
By adopting the technical scheme, the invention has the beneficial effects that:
the glass fiber reinforced plastic profile is compounded with a layer of polyester surface felt printed with colorful wood grain textures on the surface, has rich wood grain patterns and vivid effect, and is an ideal environment-friendly material which is used for replacing the traditional wood and applied to infrastructure of public places.
The invention adjusts and optimizes the raw material components of the composite pultrusion resin solution, introduces the high-activity negative oxygen ion powder, has the antibacterial property of more than 99 percent, and can meet the places with high antibacterial performance requirements. The negative oxygen ion powder achieves the aim of antibiosis mainly by destroying the activity of cell membranes of bacteria or active enzymes of cell protoplasm. In addition, the negative oxygen ions released by the negative oxygen ion powder also have the functions of purifying air, protecting health and the like. The negative oxygen ion powder is applied to the glass fiber reinforced plastic section, so that the added value of the negative oxygen ion powder is improved, and meanwhile, the glass fiber reinforced plastic section is endowed with good antibacterial property on the basis of the conventional advantages of light weight, corrosion resistance, good electrical insulation performance, one-step forming and the like, and the application field of the glass fiber reinforced plastic section is widened. The curing agent is compounded by a plurality of organic peroxides, the composite pultrusion resin is more fully crosslinked and cured in the die through the synergistic action of all the components, the mechanical properties of all aspects are superior to those of the glass fiber reinforced plastic wood-like wood grain profile formed by a single curing agent, the gel time of the composite pultrusion resin can be prolonged under the combined action of the plurality of organic peroxides, the resin is prevented from being subjected to crosslinking and curing reaction in advance in a glue dipping tank and being blocked when being pulled to a die opening, and the continuous production efficiency is reduced. Aluminum hydroxide is added in the formula as a filler, so that the cost can be reduced, the material performance can be improved, and the tensile strength and the bending strength of the product can be improved. In addition, the aluminum hydroxide also has the functions of flame retardance and smoke abatement. Furthermore, the polyvinylpyrrolidone is added into the formula, so that the adhesion between the composite pultrusion resin solution and the glass fiber can be improved.
Detailed Description
The following detailed description will be provided for the embodiments of the present invention with reference to specific embodiments, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Unless otherwise indicated, the techniques employed in the examples are conventional and well known to those skilled in the art, and the reagents and products employed are also commercially available.
Example one
The antibacterial glass fiber reinforced plastic wood-like profile comprises a knitted felt inner surface layer, a fiber yarn enhancement layer, a knitted felt outer surface layer and a wood-like surface layer, wherein the fiber yarn enhancement layer is clamped between the knitted felt inner surface layer and the knitted felt outer surface layer, the wood-like surface layer is arranged outside the knitted felt outer surface layer, the wood-like surface layer is a polyester surface felt printed with colorful wood-like textures, the fiber yarn enhancement layer is formed by sending glass fiber coarse sand into a glue dipping tank filled with a composite pultrusion resin solution under external force traction and infiltrating the glass fiber coarse sand with the composite pultrusion resin solution through glue dipping, the mass ratio of the glass fiber coarse sand in the fiber yarn enhancement layer is 80%, the mass ratio of the composite pultrusion resin is 20%, and the composite pultrusion resin solution comprises the following component raw materials in parts by weight: 30 parts of unsaturated polyester resin, 1.5 parts of curing agent, 25 parts of aluminum hydroxide, 4 parts of color paste, 0.6 part of negative oxygen ion powder, 0.15 part of sodium polyacrylate, 0.2 part of BYK-307 wetting agent, 0.1 part of zinc stearate, 0.15 part of anti-ultraviolet absorbent and 0.3 part of polyvinyl pyrrolidine.
The unsaturated polyester resin is m-benzene type unsaturated polyester resin, and the viscosity is 1100mpa & s.
The mesh number of the aluminum hydroxide is 1000 meshes.
The curing agent is prepared by mixing tert-butyl peroxybenzoate, methyl ethyl ketone peroxide and di-tert-butyl peroxide according to the mass ratio of 1.5:0.6: 0.8.
The thickness of the inner surface layer of the knitted felt is 0.5mm, the thickness of the fiber yarn reinforced layer is 1.5mm, the thickness of the outer surface layer of the knitted felt is 0.5mm, and the thickness of the wood grain-like surface layer is 0.2 mm.
The preparation method of the antibacterial glass fiber reinforced plastic wood-like profile comprises the following steps:
s1, preparation of the composite pultrusion resin solution:
adding aluminum hydroxide, color paste, negative oxygen ion powder, sodium polyacrylate, BYK-307 wetting agent and zinc stearate into unsaturated polyester resin, stirring and mixing for 40min, adding a curing agent, continuously stirring and mixing for 15min, then treating with ultrasonic waves, wherein the ultrasonic wave output power is 800W, and the ultrasonic treatment time is 20min to obtain a composite pultrusion resin solution, and pouring the composite pultrusion resin solution into a gum dipping tank;
s2, preparing the antibacterial glass fiber reinforced plastic wood-like profile:
leading out glass fiber coarse sand from a yarn cylinder, uniformly and neatly arranging the glass fiber coarse sand, and conveying the glass fiber yarn and the two layers of knitting felts into a glue dipping tank;
infiltrating a composite pultrusion resin solution, then jointly penetrating through a preforming device, placing glass fiber grit between two layers of knitted felts to form an inner surface layer of the knitted felt, a fiber yarn reinforcing layer and an outer surface layer of the knitted felt which are sequentially distributed from inside to outside, compounding a polyester surface felt printed with colorful wood grain textures on the outer surface layer of the knitted felt to form a wood grain-like surface layer, forming the approximate shape of a section bar through the preforming device, and simultaneously extruding redundant resin;
then the mixture enters a die and is cured and molded in a segmented heating mode, wherein the heating and curing temperature of the first segment is 100 ℃, the heating and curing temperature of the second segment is 120 ℃, and the heating and curing temperature of the third segment is 110 ℃;
and drawing and extruding from the die after cooling, cutting and trimming to obtain the finished product of the antibacterial glass fiber reinforced plastic wood-like profile.
Example two
The antibacterial glass fiber reinforced plastic wood-like profile comprises a knitted felt inner surface layer, a fiber yarn enhancement layer, a knitted felt outer surface layer and a wood-like surface layer, wherein the fiber yarn enhancement layer is clamped between the knitted felt inner surface layer and the knitted felt outer surface layer, the wood-like surface layer is arranged outside the knitted felt outer surface layer, the wood-like surface layer is a polyester surface felt printed with colorful wood-like textures, the fiber yarn enhancement layer is formed by sending glass fiber coarse sand into a glue dipping tank filled with a composite pultrusion resin solution under external force traction, and soaking the glass fiber coarse sand by the composite pultrusion resin solution through glue dipping, the mass ratio of the glass fiber coarse sand in the fiber yarn enhancement layer is 82%, the mass ratio of the composite pultrusion resin is 18%, and the composite pultrusion resin solution comprises the following component raw materials in parts by weight: 35 parts of unsaturated polyester resin, 2 parts of curing agent, 30 parts of aluminum hydroxide, 5 parts of color paste, 1.2 parts of negative oxygen ion powder, 0.2 part of acrylate block polymer dispersant (produced by Yangzhou Tianda chemical Co., Ltd.), 0.3 part of BYK-310 wetting agent, 0.2 part of zinc stearate, 0.16 part of anti-ultraviolet absorbent and 0.7 part of polyvinyl pyrrolidine.
The unsaturated polyester resin is m-benzene type unsaturated polyester resin, and the viscosity is 900mpa · s.
The mesh number of the aluminum hydroxide is 1100 meshes.
The curing agent is prepared by mixing tert-butyl peroxybenzoate, methyl ethyl ketone peroxide and di-tert-butyl peroxide according to the mass ratio of 2.4:0.9: 1.2.
The thickness of the inner surface layer of the knitted felt is 0.8mm, the thickness of the fiber yarn reinforced layer is 2.5mm, the thickness of the outer surface layer of the knitted felt is 0.8mm, and the thickness of the wood grain-like surface layer is 0.2 mm.
The preparation method of the antibacterial glass fiber reinforced plastic wood-like profile comprises the following steps:
s1, preparation of the composite pultrusion resin solution:
adding a filler, color paste, negative oxygen ion powder, an acrylate block polymer dispersant, a wetting agent and a release agent into unsaturated polyester resin, stirring and mixing for 50min, adding a curing agent, continuously stirring and mixing for 20min, then treating with ultrasonic waves, wherein the ultrasonic waves have the output power of 900W, and the ultrasonic treatment time is 15min to obtain a composite pultrusion resin solution, and pouring the composite pultrusion resin solution into a glue dipping tank;
s2, preparing the antibacterial glass fiber reinforced plastic wood-like profile:
leading out glass fiber coarse sand from a yarn cylinder, uniformly and neatly arranging the glass fiber coarse sand, and conveying the glass fiber yarn and the two layers of knitting felts into a glue dipping tank;
infiltrating a composite pultrusion resin solution, then jointly penetrating through a preforming device, placing glass fiber grit between two layers of knitted felts to form an inner surface layer of the knitted felt, a fiber yarn reinforcing layer and an outer surface layer of the knitted felt which are sequentially distributed from inside to outside, compounding a polyester surface felt printed with colorful wood grain textures on the outer surface layer of the knitted felt to form a wood grain-like surface layer, forming the approximate shape of a section bar through the preforming device, and simultaneously extruding redundant resin;
then the mixture enters a die and is cured and molded in a segmented heating mode, wherein the heating and curing temperature of the first segment is 105 ℃, the heating and curing temperature of the second segment is 125 ℃, and the heating and curing temperature of the third segment is 115 ℃;
and drawing and extruding from the die after cooling, cutting and trimming to obtain the finished product of the antibacterial glass fiber reinforced plastic wood-like profile.
EXAMPLE III
The antibacterial glass fiber reinforced plastic wood-like profile comprises a knitted felt inner surface layer, a fiber yarn enhancement layer, a knitted felt outer surface layer and a wood-like surface layer, wherein the fiber yarn enhancement layer is clamped between the knitted felt inner surface layer and the knitted felt outer surface layer, the wood-like surface layer is arranged outside the knitted felt outer surface layer, the wood-like surface layer is a polyester surface felt printed with colorful wood-like textures, the fiber yarn enhancement layer is formed by sending glass fiber coarse sand into a glue dipping tank filled with a composite pultrusion resin solution under external force traction, and soaking the glass fiber coarse sand by the composite pultrusion resin solution through glue dipping, the mass ratio of the glass fiber coarse sand in the fiber yarn enhancement layer is 85%, the mass ratio of the composite pultrusion resin is 15%, and the composite pultrusion resin solution comprises the following raw materials in parts by weight: 40 parts of unsaturated polyester resin, 3 parts of curing agent, 35 parts of aluminum hydroxide, 6 parts of color paste, 1.8 parts of negative oxygen ion powder, 0.3 part of sodium polyacrylate, 0.4 part of BYK-347 wetting agent, 0.3 part of zinc stearate, 0.12 part of anti-ultraviolet absorbent and 1.2 parts of polyvinylpyrrolidone.
The unsaturated polyester resin is m-benzene type unsaturated polyester resin, and the viscosity is 700mpa & s.
The mesh number of the aluminum hydroxide is 1200 meshes.
The curing agent is prepared by mixing tert-butyl peroxybenzoate, methyl ethyl ketone peroxide and di-tert-butyl peroxide according to the mass ratio of 3:1.2: 1.5.
The thickness of the inner surface layer of the knitted felt is 1mm, the thickness of the fiber yarn reinforcing layer is 3mm, the thickness of the outer surface layer of the knitted felt is 1mm, and the thickness of the wood grain-like surface layer is 0.2 mm.
The preparation method of the antibacterial glass fiber reinforced plastic wood-like profile comprises the following steps:
s1, preparation of the composite pultrusion resin solution:
adding a filler, color paste, negative oxygen ion powder, a dispersing agent, a wetting agent and a release agent into unsaturated polyester resin, stirring and mixing for 60min, adding a curing agent, continuously stirring and mixing for 30min, then treating with ultrasonic waves, wherein the ultrasonic wave output power is 1000W, and the ultrasonic treatment time is 10min to obtain a composite pultrusion resin solution, and pouring the composite pultrusion resin solution into a gum dipping tank;
s2, preparing the antibacterial glass fiber reinforced plastic wood-like profile:
leading out glass fiber coarse sand from a yarn cylinder, uniformly and neatly arranging the glass fiber coarse sand, and conveying the glass fiber yarn and the two layers of knitting felts into a glue dipping tank;
infiltrating a composite pultrusion resin solution, then jointly penetrating through a preforming device, placing glass fiber grit between two layers of knitted felts to form an inner surface layer of the knitted felt, a fiber yarn reinforcing layer and an outer surface layer of the knitted felt which are sequentially distributed from inside to outside, compounding a polyester surface felt printed with colorful wood grain textures on the outer surface layer of the knitted felt to form a wood grain-like surface layer, forming the approximate shape of a section bar through the preforming device, and simultaneously extruding redundant resin;
then the mixture enters a die and is cured and molded in a segmented heating mode, wherein the heating and curing temperature of the first segment is 110 ℃, the heating and curing temperature of the second segment is 130 ℃, and the heating and curing temperature of the third segment is 120 ℃;
and drawing and extruding from the die after cooling, cutting and trimming to obtain the finished product of the antibacterial glass fiber reinforced plastic wood-like profile.
Example four
The curing agent in the composite pultrusion resin solution adopts tert-butyl peroxybenzoate, and the specific types, the addition amounts and the preparation methods of other components are consistent with those of the first embodiment.
EXAMPLE five
The curing agent in the composite pultrusion resin solution adopts methyl ethyl ketone peroxide, and the specific types, the addition amounts and the preparation methods of other components are consistent with those of the first embodiment.
EXAMPLE six
The curing agent in the composite pultrusion resin solution adopts di-tert-butyl peroxide, and the specific types, the addition amounts and the preparation methods of other components are consistent with those of the first embodiment.
The antibacterial performance of the antibacterial glass fiber reinforced plastic wood-like profile prepared in each example is detected according to GB/T21866-2008, and the test results are shown in Table 1.
TABLE 1
Figure BDA0002938735220000101
As can be seen from Table 1, the antibacterial glass fiber reinforced plastic wood-like profile prepared by the invention has good antibacterial performance.
The antibacterial glass fiber reinforced plastic wood-like profile prepared in each example is subjected to tensile property and bending property measurement, wherein the tensile property is detected according to GB/T1447-2005, and the test results are shown in Table 2; the bending property was tested according to GB/T1449-. The width of the sample is 8.76mm, the thickness of the sample is 2.5m, and the gauge length of the sample is 50 mm.
TABLE 2
Figure BDA0002938735220000111
TABLE 3
Figure BDA0002938735220000112
As can be seen from tables 2-3, the antibacterial glass fiber reinforced plastic wood-like profile prepared by the invention has good tensile property and bending property. The curing agent is compounded by a plurality of organic peroxides, and the composite pultrusion resin is more fully crosslinked and cured in the die through the synergistic action of all the components, so that the tensile property and the bending property of the anti-bacterial glass fiber reinforced plastic wood-like grain profile are superior to those of the anti-bacterial glass fiber reinforced plastic wood-like grain profile formed by adopting a single curing agent.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.

Claims (10)

1. The antibacterial glass fiber reinforced plastic wood-grain-like profile is characterized in that: the composite pultrusion resin comprises a knitted felt inner surface layer, a fiber yarn enhancement layer, a knitted felt outer surface layer and a wood grain-like surface layer, wherein the fiber yarn enhancement layer is formed by conveying glass fiber coarse sand into a glue dipping tank filled with a composite pultrusion resin solution under the external traction, and impregnating the glass fiber coarse sand with the composite pultrusion resin solution, and the composite pultrusion resin solution comprises the following raw materials: the fiber yarn reinforced layer is sandwiched between the inner surface layer and the outer surface layer of the knitted felt, the outer surface layer of the knitted felt is provided with a wood grain imitation surface layer, and the wood grain imitation surface layer is a polyester surface felt printed with colorful wood grain textures.
2. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the mass ratio of the unsaturated polyester resin, the curing agent, the filler, the color paste, the negative oxygen ion powder, the dispersant, the wetting agent and the release agent is 30-40:1.5-3:25-35:4-6:0.6-1.8:0.15-0.3:0.2-0.4: 0.1-0.3.
3. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the unsaturated polyester resin is m-benzene type unsaturated polyester resin, and the viscosity is 700-1100mpa & s.
4. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the curing agent is prepared by mixing any one or more than two of tert-butyl peroxybenzoate, methyl ethyl ketone peroxide or di-tert-butyl peroxide in any ratio.
5. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 4, wherein: the curing agent is prepared by mixing tert-butyl peroxybenzoate, methyl ethyl ketone peroxide and di-tert-butyl peroxide according to the mass ratio of 1.5-3:0.6-1.2: 0.8-1.5.
6. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the filler is aluminum hydroxide, and the mesh number of the aluminum hydroxide is 1000-1200 meshes.
7. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the dispersing agent is formed by mixing one or two of acrylate block polymer and polyacrylate dispersing agent in any ratio.
8. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the release agent is stearate.
9. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the wetting agent is any one of BYK-307, BYK-310 and BYK-347.
10. The antibacterial glass fiber reinforced plastic wood-like grain profile as claimed in claim 1, wherein: the mass percentage of the glass fiber coarse sand in the fiber yarn reinforcing layer is 80-85%, and the mass percentage of the composite pultrusion resin is 15-20%.
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