CN101871561A - Pultruded bamboo fiber reinforce plastic wrapped bamboo honeycomb composite plate and molding method thereof - Google Patents

Abstract

The invention discloses a pultruded bamboo fiber reinforce plastic wrapped bamboo honeycomb composite plate and a molding method thereof. The molding method comprises the steps of: processing bamboo material into bamboo slats with limited length; matching the bamboo slats with glass fiber yarn weaving or non-weaving to prepare bamboo glass cloth; matching the bamboo glass cloth with glass fiber yarn, felt, fabric and other reinforcing materials according to the need; using preimpregnation resin to wrap a selected honeycomb core, and carrying out the working procedures such as presetting, solidification molding, drawing, cutting and the like; and obtaining the bamboo fiber reinforce plastic wrapped honeycomb core linear products which have the shapes being the same as those of moulds and have various cross sections by pultrusion. The bamboo fiber reinforce plastic wrapped honeycomb core linear products mainly comprise bamboo fiber reinforce plastic wrapped honeycomb core pultrusion wrapping core and sandwich board, bamboo fiber reinforce plastic wrapped honeycomb core pultrusion wrapping core and sandwich specification section, bamboo fiber reinforce plastic wrapped honeycomb core pultrusion wrapping core and sandwich non-specification section, a bamboo fiber reinforce plastic pultrusion sandwich and hollow vertical shaft wind driven generator blade, a bamboo fiber reinforce plastic wrapped honeycomb core pultrusion tubular product, a bamboo fiber reinforce plastic pultrusion square sandwich tubular product, a bamboo fiber reinforce plastic pultrusion rectangular sandwich tubular product, etc.

Description

Pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate and forming method

The invention belongs to the fiber hybrid composite production technical field, particularly bamboo glass fabric is strengthened thermosetting resin parcel honeycomb core and make pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate of various prismatic linearities and forming method.

At present, the pultrude process of known fibre glass roving is a kind of method of continuous producd fibers reinforced plastic section bar.It is the non-twist fibre glass roving on the creel to be carried out resin with other continuous reinforcing material, surface of polyester felt etc. soak achievement, then by keeping shaper, the shaping die of definite shape, and make it in mould, be pulled continuous depanning behind the solidifying, through cutting off a kind of automatic production process that can obtain the glass fibre reinforced plastics pultrusion product.Various glass fibre reinforced plastics pultrusion product performance are good, have wide range of applications, but cost are too high, and the application scale is not very big.The bamboo wood compact structure, resistance to compression, tension, wear-resisting property is good, malleable is good, and the specific humidity rate that rises is little mutually with other vegetable fibers such as timber, and its corrosion resistance more is better than other vegetable fibers such as timber.Bamboo wood growth rapidly, renewable is strong, compares cheaply with other lamination coating, produces the usage requirement that various drawing and extruding section bar products can satisfy many occasions with good bamboo material.But little owing to bamboo bar hollow, diameter, become plate poor performance, limited length and isolating property greatly, easily to go mouldy, compare with plastics or glass fibre reinforced plastics series products under the nature weather resistance poor, directly and the multiple reason of the compound compatibility performance difference of various fluoropolymer resins or the like, it can not be used on the pultrusion product, and therefore a large amount of bamboo materials fails to bring into play its due effect.The real core product of the full bamboo glass of pultrusion simultaneously raw material consumption is big, cost is high, and hollow products rigidity is not enough, and sound insulation, effect such as heat insulation are bad.

In order to overcome the deficiency of existing glass fibre reinforced plastics pultrusion product price height, short and small, the real core waste of bamboo material or the like shortcoming, pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate provided by the invention, following bamboo glass fabric is selected the bamboo glass cloth that interweaves for use, is called for short the bamboo glass cloth.Pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate moulding is that various stacked stretchings or threading (yarn, silk, rope etc.) woollen yarn knitting honeycomb core and coating bamboo glass fabric effectively are combined with each other, and the bamboo glass cloth can not only guarantee to make full use of that the bamboo material contour projector is little, elasticity and toughness is all high, tensile strength parallel to grain is about 1800kg/cm ², parallel-to-grain compressive strength is about 800kg/cm ²Or the like proper property, and be by glass fibre short and small, isolating property is big has limit for length bamboo bar to weave or together non-woven, this satisfies continuously shaped requirement, the isolating property of having eliminated bamboo material has formed simultaneously the complementary intensity of both direction with bamboo material, this has also just increased horizontal tensile strength and has also eliminated the pultrusion bamboo and wrap up in the easily horizontal disadvantage of cracking of honeycomb core fibre glass product manufacture linear direction.Various stacked stretchings or threading (yarn, silk, ropes etc.) difference of the selected material of woollen yarn knitting honeycomb core has different performances and price, it just has the outward appearance and the performance of glass fibre reinforced plastic material after selecting for use honeycomb core and bamboo glass cloth to soak the achievement resin solidification as required, permeability with glass fibre reinforced plastics under the situation about needing also can make it to have the outward appearance that manifests bamboo material, utilize the coating skin of glass fibre reinforced plastic material to intercept bamboo material and air simultaneously, unfavorable and hostile environments such as mould, the contact of material, therefore can be under the prerequisite of the original performance that guarantees bamboo material, prolonged working life widely, also be easy to simultaneously by increasing, the content that reduces glass fibre improves, reduce glass fibre reinforced plastics content and control performance and the price that the honeycomb core product was wrapped up in or pressed from both sides to bamboo glass fibre reinforced plastics, can satisfy the usage requirement of many applications, picture is heat insulation, sound insulation values etc. also are better than glass fibre reinforced plastics, the particularly reduction of price can realize large-scale promotion application.

The technical solution adopted for the present invention to solve the technical problems is: at first roll up one by designing requirement, two volumes or one or more same sizes of multireel or different size roll the bamboo glass cloth, (wide cut is the bamboo glass cloth to bamboo glass belt, in a narrow margin for bamboo glass belt) or bamboo glass cloth and bamboo glass belt be placed to together on the fabric frame, as required roving is rolled up, glasscloth, other reinforcing material of glass fiber mat or the like is placed to corresponding glass fiber yarn, felt, on the framves such as fabric, draw the bamboo glass cloth, bamboo glass belt, fibre glass roving, felt, the various reinforcing fibers of fabric or the like pass through organiser, as required by the dehumidifying of dehumidifying heater, heating, select stacked stretching of a kind of flexibility or threading (yarn as required, silk, ropes etc.) the woollen yarn knitting bamboo honeycomb core places in the middle of the clad can fabric such as bamboo glass cloth, and launch as required, invade achievement resin or four sides roll-coat resin or do not resinize, bamboo glass cloth etc. enters steeping vat preimpregnation achievement resin, again the good resin of preimpregnation and extrude reinforcing material (the bamboo glass clothes such as clad can bamboo glass cloth of unnecessary resin, bamboo glass belt, fibre glass roving, felt, fabric or the like) wraps bamboo honeycomb core together by passing the pre-setting device, mould or device are with the mould pre-setting, it is with the bamboo glass cloth, bamboo glass belt, rove, felt, fabrics etc. are accurately in conjunction with forming a sandwich cavity, remove unnecessary resin, bubble in the eliminating system, the bamboo glass cloth in mould surrounds bamboo honeycomb core in the cavity simultaneously.Then enter the continuous bamboo glass cloth glass fibre reinforced plastics pultrusion honeycomb products that the forming and hardening mold heated with multistage heating function is solidified into required sectional shape, this product is deflected from mould under the traction of traction gear, after the cutting device fixed length cutting becomes the bamboo glass fibre reinforced plastics wrapped bamboo honeycomb core pultrusion product of Len req.Pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb panel products can be different shapes such as sandwich rectangular cross-section sheet material, curved surface cross section sheet material.

The invention has the beneficial effects as follows, various pultruded bamboo fiber reinforce plastic wrappedly wrap up in application area and the application that the honeycomb core product can enlarge bamboo material widely by what this processes went out, can guarantee that bamboo material given play to huge usefulness, bamboo bar in the bamboo glass cloth has been reduced isolating property by the coating of glass fiber yarn, felt, fabric etc., simultaneously also increased compatibility with fluoropolymer resin by glass fiber yarn, realize can leaning between the bamboo bar mechanical connection of glass fiber yarn and resin, this has eliminated bamboo bar and the compound segregative disadvantage of polymeric matrix.Simultaneously the bamboo glass cloth also has the use amount that extraordinary covering property can significantly reduce material, and can wait reinforcement by increasing the bamboo glass cloth number of plies or increasing non-twist glass fiber yarn, felt, fabric in addition, and this can satisfy the multiple demand of each side easily.

The present invention is further described below in conjunction with drawings and Examples.

The structural representation of Fig. 1 pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate of the present invention.

Fig. 1-the 1st, the partial schematic sectional view of pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate.

Fig. 1-2 is the local enlarged diagram of pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate

The main side mouth pattern schematic representation of the pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate of Fig. 2.

Fig. 2-1 is wrong shoulder mouthful schematic representation.

Fig. 2-2 is a both shoulders mouth schematic representation.

Fig. 2-3 is a tongue-and-groove mouth schematic representation.

Fig. 2-4 is a double flute mouth schematic representation.

Fig. 2-5 is a double tenon mouth schematic representation.

1. skin glass steel among the figure, 2. bamboo bar, 3. bamboo honeycomb core, 4. construction layer glass fibre reinforced plastics.

Embodiment:

In Fig. 1, two or many bamboo glass fabrics are invaded the achievement resin, make bamboo glass fabric surround bamboo honeycomb core (3) by mould, add as required simultaneously and together be shaped to pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb core composite plate after other reinforcing materials such as glass fiber mat, glass fiber yarn, glasscloth, Weft bamboo glass fabric are invaded the achievement resin by mold cured.The profile of pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate has the mold cavity shape, also has skin glass steel (1), construction layer glass fibre reinforced plastics (4) and comprises the shell that bamboo bar (2) forms a sealing and wrap bamboo honeycomb core (3).Skin glass steel (1) is by the glass fibre weft yarn of bamboo glass fabric, the glass fiber warps of Weft bamboo glass fabric, add or do not add one or more glass fiber yarns as required, glass fiber mat, fiberglass reinforced articles such as glasscloth and resin solidification form, construction layer glass fibre reinforced plastics (4) is made of other fiberglass products and the resin of the glass fibre weft yarn of bamboo glass fabric and adding as required, bamboo bar (2) by the bamboo of bamboo glass fabric through bar, the bamboo latitude bar of Weft bamboo glass fabric, continuous bamboo bar, around one or more compositions such as yarn bamboo bars, bamboo honeycomb core (3) is by a kind of, two or more bamboo honeycomb cores and other class honeycomb core are mixed to be formed.The side cross section of pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate can be various straight line mouths shown in Figure 2, also can be oblique line mouth, circular arc line mouth or the like Any shape.

Claims (10)

1. pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate and forming method, it is characterized in that: at first roll up one by designing requirement, two volumes or one or more same sizes of multireel or different size roll the bamboo glass cloth, (wide cut is the bamboo glass cloth to bamboo glass belt, in a narrow margin for bamboo glass belt) or bamboo glass cloth and bamboo glass belt be placed to together on the fabric frame, as required roving is rolled up, glasscloth, other reinforcing material of glass fiber mat or the like is placed to corresponding glass fiber yarn, felt, on the framves such as fabric, draw the bamboo glass cloth, bamboo glass belt, fibre glass roving, felt, the various reinforcing fibers of fabric or the like pass through organiser, as required by the dehumidifying of dehumidifying heater, heating, select stacked stretching of a kind of flexibility or threading (yarn as required, silk, ropes etc.) the woollen yarn knitting bamboo honeycomb core places in the middle of the clad can fabric such as bamboo glass cloth, and launch as required, invade achievement resin or four sides roll-coat resin or do not resinize, bamboo glass cloth etc. enters steeping vat preimpregnation achievement resin, again the good resin of preimpregnation and extrude reinforcing material (the bamboo glass clothes such as clad can bamboo glass cloth of unnecessary resin, bamboo glass belt, fibre glass roving, felt, fabric or the like) wraps bamboo honeycomb core together by passing the pre-setting device, mould or device are with the mould pre-setting, it is with the bamboo glass cloth, bamboo glass belt, rove, felt, fabrics etc. are accurately in conjunction with forming a sandwich cavity, remove unnecessary resin, bubble in the eliminating system, the bamboo glass cloth in mould surrounds bamboo honeycomb core in the cavity simultaneously.Then enter the continuous bamboo glass cloth glass fibre reinforced plastics pultrusion honeycomb products that the forming and hardening mold heated with multistage heating function is solidified into required sectional shape, this product is deflected from mould under the traction of traction gear, after the cutting device fixed length cutting becomes the bamboo glass fibre reinforced plastics wrapped bamboo honeycomb core pultrusion product of Len req.Pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb panel products can be different shapes such as sandwich rectangular cross-section sheet material, curved surface cross section sheet material.The linear product that bamboo glass fibre reinforced plastics is wrapped up in honeycomb core mainly contains bamboo glass fibre reinforced plastics and wraps up in the honeycomb core pultrusion and wrap up in core, sandwich sheet, bamboo glass fibre reinforced plastics is wrapped up in the honeycomb core pultrusion and is wrapped up in core, sandwich specification section bar, bamboo glass fibre reinforced plastics is wrapped up in the honeycomb core pultrusion and is wrapped up in not specification section bar of core, sandwich, bamboo glass fibre reinforced plastics pultrusion sandwich and hollow vertical axis wind generator blade, bamboo glass fibre reinforced plastics is wrapped up in honeycomb core pultrusion tubing, and the pultrusion of bamboo glass fibre reinforced plastics is square, rectangle sandwich tubing or the like product.

2. pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate according to claim 1 and forming method, it is characterized in that: bamboo glass fabric refers to the various limit for length's of having bamboo fiber bars of same specification cross section as bamboo latitude bar, bamboo latitude bar through the butt joint, finger, beat splicing such as groove overlap joint or mechanical coupling become endless bamboo fiber bar as bamboo through bar, bamboo is through bar, bamboo latitude bar cooperates employing braiding (knitting) with glass fiber yarn, machine (friendship) is knitted, knit volume, loop bonding and processes such as non-woven are just produced braiding (knitting) bamboo glass cloth accordingly, broadwise braiding (knitting) bamboo glass cloth; Machine (friendship) is knitted the bamboo glass cloth, broadwise machine (friendship) is knitted the bamboo glass cloth, is called for short bamboo glass cloth, Weft bamboo glass fabric; Woven bamboo-glass fiber; Loop bonding bamboo glass cloth, Weft-knitted bamboo glass cloth; Non-woven bamboo glass cloth, the non-woven bamboo glass cloth of broadwise etc.Both be called corresponding bamboo glass belt with above-mentioned corresponding various bamboo glass fabrics in a narrow margin.

3. pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate according to claim 1 and forming method, it is characterized in that: according to products characteristics can be that various bamboo glass clothes, bamboo glass belt and various Weft bamboo glass fabric are used, and also can be to be used with other reinforcing material.

4. according to claim 1,2,3 described pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate and forming methods, it is characterized in that: the bamboo latitude bar in the bamboo glass fabric, bamboo can partly substitute with other one or more materials through bar.

5. according to claim 1,2,3,4 described pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate and forming methods, it is characterized in that: the glass fiber yarn of bamboo glass fabric can be any glass fiber yarn that satisfies usage requirement, and can be with enhancings such as other glass fiber yarn, glass fiber mat, glasscloths; Also can use the fiber of other kind of carbon fiber, aramid fibre, steel fiber or the like to substitute; Can be single fiber, also can be multiple blend fiber, also can be other fiber and felt, fabric unite use etc.; Can be that other various reinforcing materials and surface decoration material are mixed together use.

6. pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate according to claim 1 and forming method is characterized in that: resin can be thermosetting resins such as unsaturated polyester resin, epoxy resin, phenolic resin, vinyl ester resin.It also can be polyethylene, PVC, polypropylene or the like thermoplastic resin; Can be a kind of resin, also can be the mixture of several resins.

7. pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate according to claim 1 and forming method is characterized in that: pultrusion such as available wooden skin, bamboo skin, decorative paper etc. together become to have the product of decorative effect; And can increase follow-up surface lacquer etc. as required and decorate manufacturing procedure.

8. pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate according to claim 1 and forming method is characterized in that: pre-setting, increases the preheating link and can improve pultrusion speed to increasing the heating equipment preheating as required between the shaping die to mould.

9. pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate according to claim 1 and forming method, it is characterized in that: the linear product that bamboo glass fibre reinforced plastics is wrapped up in honeycomb core mainly contains the pultruded bamboo fiber reinforce plastic wrapped honeycomb core sheet material of wrapping up in, and cross section can be that specification rectangle honeycomb board, dual-side are honeycomb board, grooved sheet material, the band tenon limits and band fourth of the twelve Earthly Branches mouth or the like various patterns of any curve form; The pultruded bamboo fiber reinforce plastic wrapped honeycomb core specification curved surface sandwich board material of wrapping up in; The pultruded bamboo fiber reinforce plastic wrapped not specification sandwich sheet of honeycomb core of wrapping up in, pultruded bamboo fiber reinforce plastic wrapped folder honeycomb core and hollow vertical axis wind generator blade, bamboo glass fibre reinforced plastics is wrapped up in honeycomb core pultrusion tubing, and the pultrusion of bamboo glass fibre reinforced plastics is square, clip rectangle honeycomb core tubing or the like product.

10. according to claim 1,9 described pultruded bamboo fiber reinforce plastic wrapped wrapped bamboo honeycomb composite plate and forming methods, it is characterized in that: flexible stacked stretching or threading (yarn, silk, rope etc.) woollen yarn knitting honeycomb core can be bamboo honeycomb core, Wooden honeycomb core, paper honeycomb core, frp honeycomb core, aluminium honeycomb core, aramid fiber honeycomb core, various glass honeycomb core, ceramic honeycomb core, flag honeycomb core and various hard fabric and braided fabric honeycomb core; Various hard (bamboo and wood, metal, glass, pottery, potter's clay, flag or the like) wall sheet is worn the honeycomb core that the chain woollen yarn knitting forms with flexible wires (yarn, silk, rope etc.).

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