CN104530362A - Composite section and manufacturing method thereof - Google Patents
Composite section and manufacturing method thereof Download PDFInfo
- Publication number
- CN104530362A CN104530362A CN201410850577.1A CN201410850577A CN104530362A CN 104530362 A CN104530362 A CN 104530362A CN 201410850577 A CN201410850577 A CN 201410850577A CN 104530362 A CN104530362 A CN 104530362A
- Authority
- CN
- China
- Prior art keywords
- component
- section bar
- wood
- composite material
- fibre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4081—Mixtures of compounds of group C08G18/64 with other macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6492—Lignin containing materials; Wood resins; Wood tars; Derivatives thereof
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Abstract
The invention provides a composite section and a manufacturing method of the composite section. The composite section is formed by mixing and molding a first component and a second component. The first component comprises isocyanate, first wood fibers, first inorganic fillers and first reinforced short fibers. The second component comprises monomers, second wood fibers, second inorganic fillers and second reinforced short fibers, and the monomers are polyhydric alcohols or polyamine. The mass fraction of the first wood fibers and the mass fraction of the second wood fibers are not zero at the same time, the mass fraction of the first inorganic fillers and the mass fraction of the second inorganic fillers are not zero at the same time, and the mass fraction of the first reinforced short fibers and the mass fraction of the second reinforced short fibers are not zero at the same time. The composite section is good in steel tenacity, heating is not needed in the production process of the composite section, and energy consumption is very low.
Description
Technical field
The invention belongs to section bar technical field, particularly relate to a kind of composite material section bar and preparation method thereof.
Background technology
Section bar is iron or steel and the material (as aluminium, plastics etc.) with some strength and toughness, the object with certain geometrical shape made by moulding process.Along with the development rapidly of the modernization of industry, the application of various section bar is more and more extensive, to its demand also in continuous increase.In various section bar, the most general with Iron And Steel Material Shaped, aluminium alloy extrusions and plastic-steel section bar.But the production process of above-mentioned several section bar all consumes mass energy.
In recent years, because Wood-plastic profiles has good looking appearance, high-strength light and the advantage such as corrosion-resistant, the demand of this composite material section bar is increased fast.Prior art discloses multiple wood plastic composite material sections, as the application number Chinese patent literature that is 201210143016.9 discloses a kind of preparation method of wood plastic composite.The processing step of this preparation method is as follows: a) each preparation of raw material is become compound, calculates by mass percentage, and each composition of raw materials method is as follows: polyvinyl chloride resin 30%-50%; Fir powder 5%-15%, calcium carbonate 15%-30%; PVC gives up feed back 5%-10%; Whipping agent 1%-5%; PE wax 1%-5%; Toner 1%-5%; B) by step a) described in compound add mixing in high-speed mixer; C) by step b) described in compound add in extrusion shaping machine, start extrusion shaping machine, and adjust extrusion shaping machine each district temperature, compound is extruded; D) compound after extruding is put into shaper shaping; E) in-mold molding product water quench is shaped; F) product after sizing is carried out surface treatment.Wherein, step c) described in the barrel 1 district temperature of extrusion shaping machine be 160-175 DEG C, barrel 2 district temperature is 165-178 DEG C, and barrel 3 district temperature is 170-185 DEG C, and barrel 4 district temperature is 175-188 DEG C.
Wood plastic composite prepared by above-mentioned preparation method has imitative wood effect, and material weight is light, intensity is high, but its production process needs heating, and energy consumption is higher.
Summary of the invention
In view of this, the application provides a kind of composite material section bar and preparation method thereof, the firm good toughness of the composite material section bar that the application provides, and its production process is without the need to heating, and energy consumption is very low.
The application provides a kind of composite material section bar, by the first component and second component through mixing, shaping obtained;
Described first component comprises isocyanic ester, the first wood fibre, the first mineral filler and the first enhancing staple fibre;
Described second component comprises monomer, the second wood fibre, the second mineral filler and the second enhancing staple fibre, and described monomer is polyvalent alcohol or polyamine;
Described first wood fibre is 0 time different with the massfraction of the second wood fibre, is 0 when described first mineral filler is different with the massfraction of the second filler, is 0 when the massfraction of described first enhancing staple fibre and the second enhancing staple fibre is different.
Preferably, described first wood fibre and the second wood fibre are at least one in wood fiber powder and bamboo fibers powder independently.
Preferably, the total mass of described first wood fibre and the second wood fibre is 5% ~ 65% of the total mass of described first component and second component.
Preferably, described first mineral filler and the second mineral filler are talcum powder, light calcium carbonate, aluminium hydroxide, aluminum oxide or silicon-dioxide independently.
Preferably, the total mass of described first mineral filler and the second mineral filler is 15% ~ 75% of the total mass of described first component and second component.
Preferably, described first strengthen staple fibre and second strengthen staple fibre independently for short glass fiber, chopped carbon fiber, shortly cut aramid fiber or chopped ramie fiber.
Preferably, the described first total mass strengthening staple fibre and the second enhancing staple fibre is 10% ~ 30% of the total mass of described first component and second component.
Preferably, the total mass of described isocyanic ester and monomer is 5% ~ 60% of the total mass of described first component and second component.
The application provides a kind of preparation method of composite material section bar mentioned above, comprises the following steps:
Described first component is mixed with second component, shaping at the cure under pressure of 0.1MPa ~ 1.0MPa, obtain composite material section bar.
Preferably, the mass ratio of described first component and second component is 1:(0.5 ~ 1.5).
Compared with prior art, the first component mixes with second component by the application, under a certain pressure curing molding, obtains composite material section bar; Described first component comprises isocyanic ester, the first wood fibre, the first mineral filler and the first enhancing staple fibre; Described second component comprises monomer, the second wood fibre, the second mineral filler and the second enhancing staple fibre, and described monomer is polyvalent alcohol or polyamine; Described first wood fibre is 0 time different with the massfraction of the second wood fibre, is 0 when described first mineral filler is different with the massfraction of the second filler, is 0 when the massfraction of described first enhancing staple fibre and the second enhancing staple fibre is different.The application is by isocyanic ester and polyvalent alcohol or polyamine monomer room temperature quick response characteristic, and high-level efficiency, less energy-consumption ground produce polyurethane-base or polyurea based wood plastic composite material sections; Further, the application adopts monomer and isocyanic ester to infiltrate wood fibre and filler respectively, and then mix, curing molding, strongthener and additive can be made fully to infiltrate, thus ensure the strong and unyielding property of obtained section bar.The composite material section bar that the application provides is polyurethane-base or polyurea based wood plastic composite material sections, and having performance can the fluctuation of scope of design wide, product properties little, firm good toughness, light weight and cost performance high.Therefore, the firm good toughness of the composite material section bar that the application provides, and its production process is without the need to heating, reduces energy consumption, improves production efficiency.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present application below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
This application provides a kind of composite material section bar, by the first component and second component through mixing, shaping obtained;
Described first component comprises isocyanic ester, the first wood fibre, the first mineral filler and the first enhancing staple fibre;
Described second component comprises monomer, the second wood fibre, the second mineral filler and the second enhancing staple fibre, and described monomer is polyvalent alcohol or polyamine;
Described first wood fibre is 0 time different with the massfraction of the second wood fibre, is 0 when described first mineral filler is different with the massfraction of the second filler, is 0 when the massfraction of described first enhancing staple fibre and the second enhancing staple fibre is different.
It is high that the application provides a kind of intensity, and good toughness is lightweight, and cost energy consumption is low, can fully utilize the environment-friendly type high performance composite material section bar of waste and old bamboo and wood, can save the huge energy.
The composite material section bar that the application provides adopts the first component and these two kinds of components of second component, through mixing, shaping obtained.Described first component comprises isocyanic ester, the first wood fibre, the first mineral filler and the first enhancing staple fibre.Wherein, described isocyanic ester comprises monoisocyanates, vulcabond and polyisocyanates etc., as tolylene diisocyanate, diphenylmethanediisocyanate (MDI).The application is not particularly limited the kind of described isocyanic ester and source etc., can buy obtain from market.
Described first component comprises the first wood fibre, and it is preferably at least one in wood fiber powder and bamboo fibers powder, is more preferably wood fiber powder (abbreviation wood powder).The application is not particularly limited the kind of described first wood fibre and source, adopts wood fibre well known to those skilled in the art, as used granularity to be 100 object wood powders.The application preferably adopts waste and old bamboo and wood fiber powder, carries out comprehensive reutilization, economize on resources to waste and scrap.
Described first component comprises the first mineral filler, adds it and is beneficial to the processing of section bar and the improvement of performance.Described first mineral filler is preferably talcum powder, light calcium carbonate, aluminium hydroxide, aluminum oxide or silicon-dioxide, more preferably talcum powder, light calcium carbonate or aluminium hydroxide.The source of the application to described first mineral filler is not particularly limited, and can buy obtain, as used granularity to be 250 order ~ 350 object mineral fillers from market.
Described first component comprises the first enhancing staple fibre, and it is preferably short glass fiber, chopped carbon fiber, shortly cuts aramid fiber or chopped ramie fiber, is more preferably chopped carbon fiber or shortly cuts aramid fiber.The application is not particularly limited the source that described first strengthens staple fibre, can buy obtain, as used the short glass fiber that length is 1mm ~ 5mm from market.
Except this component of the first component, the application also adopts second component.Described second component comprises monomer, the second wood fibre, the second mineral filler and the second enhancing staple fibre.Wherein, described monomer is polyvalent alcohol or polyamine; Preferably, the total mass of described isocyanic ester and monomer is 5% ~ 60% of the total mass of described first component and second component, is more preferably 10% ~ 50%.
When described monomer is polyvalent alcohol, it mixed with isocyanic ester, normal-temperature reaction is solidified into urethane resin, as the matrix resin of composite material section bar.By this for urethane toughness and thermoplastic resin similar, processing performance is close with unsaturated polyester, the adhesive property thermosetting resin suitable with epoxy resin for the production of wood plastic composite material sections, the molecular structure designability of urethane and expandable can also be an one advantage.The application can utilize the molecule structure change of polyvalent alcohol and isocyanic ester, makes the proterties of urethane Wood-plastic profiles become firmly crisp from softness, to adapt to the requirement of different condition to Wood-plastic profiles; And utilize the foam performance of urethane, the density of shape product can be made to change to hundreds of from tens kilograms every cubic metre and even metric ton.
When described monomer is polyamine, it mixed with isocyanic ester, normal-temperature reaction is solidified into carbamide resin, as the matrix resin of composite material section bar.The kind of the application to described polyvalent alcohol or polyamine is not particularly limited, as glycerine, tetramethylolmethane, 3 can be adopted, and chloro-4, the 4 ＇-diaminodiphenyl-methane of 3 ＇-two or polyethers polyvalent alcohol etc.
Urethane and polyureas belong to two kinds of component vast scale mixing, quick-reaction type thermosetting resin, not only there is the room temperature rapid reaction characteristic of similar unsaturated polyester, and have that composite attribute is good, intensity is high, toughness is better and can the performance such as post-treatment (as car, milling, plane, nail and saw).The application adopts contact moudling technique, and reactive component is fully infiltrated strongthener, thus achieves and used by urethane or the polyureas matrix resin as wood plastic composite.
Described second component comprises the second wood fibre, and it is preferably at least one in wood fiber powder and bamboo fibers powder, is more preferably wood fiber powder.The application is not particularly limited the kind of described second wood fibre and source, adopts wood fibre well known to those skilled in the art, as used granularity to be 100 object wood powders.The application preferably adopts waste and old bamboo and wood fiber powder, carries out comprehensive reutilization, economize on resources to waste and scrap.Described second wood fibre can be identical with the kind of the first wood fibre, also can be different.Described first wood fibre is 0 time different with the massfraction of the second wood fibre, as preferably, the total mass of described first wood fibre and the second wood fibre is 5% ~ 65% of the total mass of described first component and second component, is more preferably 30% ~ 60%.When the massfraction of described first wood fibre and the second wood fibre is not all 0, both mass ratioes are preferably 1:(0.5 ~ 1.5), be more preferably 1:1.
Described second component comprises the second mineral filler, adds it and is beneficial to the processing of section bar and the improvement of performance.Described second mineral filler is preferably talcum powder, light calcium carbonate, aluminium hydroxide, aluminum oxide or silicon-dioxide, more preferably talcum powder, light calcium carbonate or aluminium hydroxide.The source of the application to described second mineral filler is not particularly limited, and can buy obtain, as used granularity to be 250 order ~ 350 object mineral fillers from market.In this application, described second mineral filler is preferably identical with the kind of the first mineral filler.Described first mineral filler is 0 time different with the massfraction of the second mineral filler, as preferably, the total mass of described first mineral filler and the second mineral filler is 15% ~ 75% of the total mass of described first component and second component, is more preferably 20% ~ 60%.When the massfraction of described first mineral filler and the second mineral filler is not all 0, both mass ratioes are preferably 1:(0.5 ~ 1.5), be more preferably 1:1.
Described second component comprises the second enhancing staple fibre, and it is preferably short glass fiber, chopped carbon fiber, shortly cuts aramid fiber or chopped ramie fiber, is more preferably chopped carbon fiber or shortly cuts aramid fiber.The application is not particularly limited the source that described first strengthens staple fibre, can buy obtain, as used the short glass fiber that length is 1mm ~ 5mm from market.In this application, described second strengthens staple fibre and first to strengthen the kind of staple fibre preferably identical.The massfraction of described first enhancing staple fibre material and the second enhancing staple fibre is 0 time different, as preferably, described first total mass strengthening staple fibre and the second enhancing staple fibre is 10% ~ 30% of the total mass of described first component and second component, is more preferably 15% ~ 25%.When described first strengthens staple fibre and the second massfraction strengthening staple fibre is not all 0, both mass ratioes are preferably 1:(0.5 ~ 1.5), be more preferably 1:1.
Accordingly, this application provides a kind of preparation method of composite material section bar mentioned above, comprise the following steps:
Described first component is mixed with second component, shaping at the cure under pressure of 0.1MPa ~ 1.0MPa, obtain composite material section bar.
The application is with the explained hereafter heat-curable urethane of contact moudling or polyurea based wood plastic composite material sections; compared with moulding with common thermoplastic's wood, not only production technique is simple, and energy consumption is low; efficiency is high; can fully utilize waste and old bamboo and wood, preserve the ecological environment, and obtained section bar is corrosion-resistant; fire-retardant good with post-treatment performance; intensity can scope of design wide, section bar density and snappiness can also be changed as required, to meet the demand in different application field.
The embodiment of the present application first infiltrates wood fibre, filler and auxiliary agent respectively with liquid monomer under normal temperature and isocyanic ester, obtains the first component and second component respectively.
As preferably, the application by after wood fibre, mineral filler and the drying of enhancing staple fibre, then mixes with monomer, isocyanic ester.Described drying can adopt drying oven to carry out, preferably fully dry under the condition of 100 ± 5 DEG C.If desired, monomer can fully dewater by the application under vacuum.
Monomer after isocyanic ester and dehydration is infiltrated the materials such as dried wood fibre by the application respectively, obtains the first component and second component.Described infiltration is the technique means of mixing well known to those skilled in the art, preferably fully stirs, makes to mix.In this application, the impregnation process of matrix and addO-on therapy, without the need to heating, reduces energy consumption; Reduce the requirement (particularly moisture content) of addO-on therapy, the ratio of addO-on therapy also can be higher.
After obtaining the first component and second component, the embodiment of the present application realizes accurate proportioning by equipment, and both is mixed fast, equably, keeps certain pressure, through mould compression moulding, or die head continuous extrusion, obtain composite material section bar.
Described first component is consistent with previously described content with the content of second component, does not repeat them here.Preferably, the mass ratio of described first component and second component is 1:(0.5 ~ 1.5), be more preferably 1:1.Both mix by the application, obtain compound; Described mixing can be realized by twin screw mixing syringe.The embodiment of the present application can adopt screw rod transmission mechanism, is transported in same twin screw mixing syringe by two kinds of materials respectively, mixes with same ratio (or control screw speed, be adjusted to other ratios).
In an embodiment of the application, described twin screw mixing syringe is connected with profile die, compound through die head excipient, during die head, monomer and isocyanic ester react and curing molding, obtain urethane wood plastic composite material sections or polyureas wood plastic composite material sections.Described shaping pressure is 0.1MPa ~ 1.0MPa, is preferably 0.3MPa ~ 0.8MPa; The described shaping time is preferably 15 minutes ~ 30 minutes.
The composite material section bar that the application obtains is thermoset Wood-plastic profiles, and its matrix is two-part reaction-curable thermosetting resin, and directly rapid reaction solidification forms at normal temperatures.Therefore, the production process of the application does not need heating, and energy consumption is very low, also greatly reduces the equipment investment of Wood-plastic profiles.
Meanwhile, because the weathering resistance of urethane and polyureas, erosion resistance are all better than iron, aluminium and thermoplastics, there is etching problem in this section bar of the application hardly.The metamorphosis wide ranges of urethane and polyureas, performance designability is strong, wherein, firm Toughness Ratio unsaturated polyester resin and epoxy resin good, make the post-treatment of this section bar of the application (car, milling, brill, punching, nail nail and tighten up a screw) be unsaturated polyester resin base and epoxy resin-matrix Wood-plastic profiles incomparable, therefore the range of application of section bar can be widened, as the technological limits of current epoxy resin and unsaturated polyester resin Wood-plastic profiles can be broken through, for the production of larger sized composite material section bar.
In addition, because of the expandable energy of urethane uniqueness, according to the purposes of goods, its foaminess can be utilized to reduce density, while weight reduction, improve the performances such as adiabatic heat-insulation, as producing foamed Wood-plastic profiles, high rigidity and good toughness Wood-plastic profiles etc., for the widespread use of section bar in fields such as industrial and agricultural production, building and communications and transportation is provided convenience.
In order to understand the application further, below in conjunction with embodiment, composite material section bar that the application provides and preparation method thereof is described particularly.
Embodiment 1
Be that (by the Sanmenxia Gorge, Yong Damu subsidiary factory provides 100 object wood powders by granularity, tailored version moulded by wood), granularity is 320 object fine aluminum hydroxide powders (packing type), length is 5mm short glass fiber is placed in drying oven, fully dry under the condition of 100 ± 5 DEG C; PPG-10000 type polyethers polyvalent alcohol (purchased from Nanjing flag space chemistry Science and Technology Ltd.) is fully dewatered under vacuum.
PM200 type isocyanic ester (purchased from Yantai Wan Hua chemical Group Co., Ltd) is added in the first mixing tank of band stirring, add dried a part of wood powder, obtain the first component; Polyethers polyvalent alcohol after dehydration is added in the second mixing tank of band stirring, add dried a part of wood powder, dried aluminium hydroxide, dried short glass fiber, fully stir, mix, obtain second component; The total ratio of described wood powder is 40%, and the ratio of aluminium hydroxide is 15%, and the ratio of short glass fiber is 25%.
Described first component and second component are sent into screw conveyor feed bin respectively, and setting handling machinery screw speed is equal, and two kinds of compounds are mixed with identical ratio; Install 55mm H-shaped material mould, open double-screw mixer motor and screw conveyor motor, ensure handling machinery feed bin not fracture, extrude polyurethane-base wood plastic composite material sections continuously.
According to standard GB/T/T 1449-2005 " fibre reinforced plastics bending property test method ", performance test is carried out to the section bar obtained.Result shows, and the bending strength of described section bar is 90MPa, far above the 60MPa of common plastic-steel.Meanwhile, described section bar resistance to deterioration, can ornamental and surface smoothness etc. all excellent than plastics.
Embodiment 2
Be that (by the Sanmenxia Gorge, Yong Damu subsidiary factory provides 100 object wood powders by granularity, tailored version moulded by wood), granularity is 280 object talcum powder (packing type), length is 5mm short glass fiber is placed in drying oven, fully dry under the condition of 100 ± 5 DEG C; PPG-10000 type polyethers polyvalent alcohol (purchased from Nanjing flag space chemistry Science and Technology Ltd.) is fully dewatered under vacuum.
PM200 type isocyanic ester (purchased from Yantai Wan Hua chemical Group Co., Ltd) is added in the first mixing tank of band stirring, add dried a part of short glass fiber, obtain the first component; Polyethers polyvalent alcohol after dehydration is added in the second mixing tank of band stirring, add dried wood powder, dried talcum powder, dried a part of short glass fiber, fully stir, mix, obtain second component; The ratio of described wood powder is 55%, and talcous ratio is 25%, and the total ratio of short glass fiber is 10%.
Described first component and second component are sent into screw conveyor feed bin respectively, and setting handling machinery screw speed is equal, and two kinds of compounds are mixed with identical ratio; Mount type timber die on press, opens double-screw mixer motor and screw conveyor motor, and compound Quick uniform is loaded mould, open press, matched moulds, keep the pressure of 0.1MPa, after 30 minutes, resin solidification is shaping, and the demoulding obtains polyurethane-base wood plastic composite material sections.Wherein, the quantity of described mould and the speed of mixing tank discharging match, and mixing tank is uninterruptedly produced, otherwise easily cause material solidification in mixing tank.
Testing method according to embodiment 1, carries out performance test to the section bar obtained.Result shows, and the bending strength of described section bar is 100MPa, exceeds several times than the bending strength of the 20MPa of normal wood plastic section bar.Meanwhile, the firm Toughness Ratio normal wood plastic section bar of described section bar is good, in addition its have resistance to deterioration, can ornamental and density adjustable, range of application is more broader than normal wood plastic section bar.
Embodiment 3
Be that (by the Sanmenxia Gorge, Yong Damu subsidiary factory provides 100 object wood powders by granularity, tailored version moulded by wood), granularity is 320 object aluminium hydroxides (packing type), length is 5mm short glass fiber is placed in drying oven, fully dry under the condition of 100 ± 5 DEG C; AMD-2000 type Amino Terminated polyether(ATPE) (purchased from Yantai people's livelihood Chemical Company) is fully dewatered under vacuum.
PM200 type isocyanic ester (purchased from Yantai Wan Hua chemical Group Co., Ltd) is added in the first mixing tank of band stirring, add dried a part of aluminium hydroxide, obtain the first component; Polyamine after dehydration is added in the second mixing tank of band stirring, add dried wood powder, dried a part of aluminium hydroxide, dried short glass fiber, fully stir, mix, obtain second component; The ratio of described wood powder is 35%, and the total ratio of aluminium hydroxide is 20%, and the ratio of short glass fiber is 20%.
Described first component and second component are sent into screw conveyor feed bin respectively, and setting handling machinery screw speed is equal, and two kinds of compounds are mixed with identical ratio; Mount type timber die on press, opens double-screw mixer motor and screw conveyor motor, and compound Quick uniform is loaded mould, open press, matched moulds, keep the pressure of 1.0MPa, after 15 minutes, resin solidification is shaping, and the demoulding obtains polyureas wood plastic composite material sections.Wherein, the quantity of described mould and the speed of mixing tank discharging match, and mixing tank is uninterruptedly produced, otherwise easily cause material solidification in mixing tank.
Testing method according to embodiment 1, carries out performance test to the section bar obtained.Result shows, and the bending strength of described section bar is 100MPa, exceeds several times than the bending strength of the 20MPa of normal wood plastic section bar.Meanwhile, described section bar has excellent corrosion-resistant and solvent resistant performance, makes it can substitute the application of normal wood plastic section bar in relatively rugged environment.
As seen from the above embodiment, the application is by isocyanic ester and polyvalent alcohol or polyamine monomer room temperature quick response characteristic, and high-level efficiency, less energy-consumption ground produce polyurethane-base or polyurea based wood plastic composite material sections; Further, the application adopts monomer and isocyanic ester to infiltrate wood fibre and filler respectively, and then mix, curing molding, strongthener and additive can be made fully to infiltrate, thus ensure the strong and unyielding property of obtained section bar.The composite material section bar that the application provides is polyurethane-base or polyurea based wood plastic composite material sections, and having performance can the fluctuation of scope of design wide, product properties little, firm good toughness, light weight and cost performance high.Therefore, the firm good toughness of the composite material section bar that the application provides, and its production process is without the need to heating, reduces energy consumption, improves production efficiency.
Claims (10)
1. a composite material section bar, by the first component and second component through mixing, shaping obtained;
Described first component comprises isocyanic ester, the first wood fibre, the first mineral filler and the first enhancing staple fibre;
Described second component comprises monomer, the second wood fibre, the second mineral filler and the second enhancing staple fibre, and described monomer is polyvalent alcohol or polyamine;
Described first wood fibre is 0 time different with the massfraction of the second wood fibre, is 0 when described first mineral filler is different with the massfraction of the second filler, is 0 when the massfraction of described first enhancing staple fibre and the second enhancing staple fibre is different.
2. composite material section bar according to claim 1, is characterized in that, described first wood fibre and the second wood fibre are at least one in wood fiber powder and bamboo fibers powder independently.
3. composite material section bar according to claim 1, is characterized in that, the total mass of described first wood fibre and the second wood fibre is 5% ~ 65% of the total mass of described first component and second component.
4. composite material section bar according to claim 1, is characterized in that, described first mineral filler and the second mineral filler are talcum powder, light calcium carbonate, aluminium hydroxide, aluminum oxide or silicon-dioxide independently.
5. composite material section bar according to claim 1, is characterized in that, the total mass of described first mineral filler and the second mineral filler is 15% ~ 75% of the total mass of described first component and second component.
6. composite material section bar according to claim 1, is characterized in that, described first strengthen staple fibre and second strengthen staple fibre independently for short glass fiber, chopped carbon fiber, shortly cut aramid fiber or chopped ramie fiber.
7. composite material section bar according to claim 1, is characterized in that, the described first total mass strengthening staple fibre and the second enhancing staple fibre is 10% ~ 30% of the total mass of described first component and second component.
8. composite material section bar according to claim 1, is characterized in that, the total mass of described isocyanic ester and monomer is 5% ~ 60% of the total mass of described first component and second component.
9. a preparation method for the composite material section bar described in any one of claim 1 to 8, comprises the following steps:
Described first component is mixed with second component, shaping at the cure under pressure of 0.1MPa ~ 1.0MPa, obtain composite material section bar.
10. preparation method according to claim 9, is characterized in that, the mass ratio of described first component and second component is 1:(0.5 ~ 1.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850577.1A CN104530362A (en) | 2014-12-31 | 2014-12-31 | Composite section and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850577.1A CN104530362A (en) | 2014-12-31 | 2014-12-31 | Composite section and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104530362A true CN104530362A (en) | 2015-04-22 |
Family
ID=52846015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410850577.1A Pending CN104530362A (en) | 2014-12-31 | 2014-12-31 | Composite section and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104530362A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883590A (en) * | 2017-04-06 | 2017-06-23 | 东莞市东泉模具材料有限公司 | A kind of special high rigidity board capable of replacing wood board of equipment workbench and preparation method thereof |
| CN106883589A (en) * | 2017-04-06 | 2017-06-23 | 东莞市东泉模具材料有限公司 | A kind of special low-density board capable of replacing wood board of equipment workbench and preparation method thereof |
| CN106893076A (en) * | 2017-04-06 | 2017-06-27 | 东莞市东泉模具材料有限公司 | A kind of special board capable of replacing wood board of equipment workbench and preparation method thereof |
| CN108373528A (en) * | 2017-02-01 | 2018-08-07 | 胡海东 | A kind of composite matrix resin |
| CN114876106A (en) * | 2022-05-05 | 2022-08-09 | 广东五恒新材料有限公司 | Polyurethane material for curtain wall, building curtain wall profile and preparation method thereof |
-
2014
- 2014-12-31 CN CN201410850577.1A patent/CN104530362A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373528A (en) * | 2017-02-01 | 2018-08-07 | 胡海东 | A kind of composite matrix resin |
| CN106883590A (en) * | 2017-04-06 | 2017-06-23 | 东莞市东泉模具材料有限公司 | A kind of special high rigidity board capable of replacing wood board of equipment workbench and preparation method thereof |
| CN106883589A (en) * | 2017-04-06 | 2017-06-23 | 东莞市东泉模具材料有限公司 | A kind of special low-density board capable of replacing wood board of equipment workbench and preparation method thereof |
| CN106893076A (en) * | 2017-04-06 | 2017-06-27 | 东莞市东泉模具材料有限公司 | A kind of special board capable of replacing wood board of equipment workbench and preparation method thereof |
| CN114876106A (en) * | 2022-05-05 | 2022-08-09 | 广东五恒新材料有限公司 | Polyurethane material for curtain wall, building curtain wall profile and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104530362A (en) | Composite section and manufacturing method thereof | |
| CA1196461A (en) | Method for manufacturing wood-like molded product | |
| US5273819A (en) | Fiber reinforced resin composites, method of manufacture and improved composite products | |
| CN105713403A (en) | Wood-plastic composite and preparation method for special-shape molded member thereof | |
| CN101596732B (en) | Manufacturing method for wood-plastic composite floor | |
| AU2001277466A1 (en) | Fibre composites with excellent dimensional stability, weather resistance and flameproofing properties | |
| CN103525110A (en) | High-strength PE (polyethylene) wood-plastic composite material and preparation method thereof | |
| CN102993759A (en) | Anti-aging wear-resistant wood-plastic floor and production process thereof | |
| WO2005009701A3 (en) | Composite materials comprising plastics and wood | |
| CN101519534A (en) | Wood-plastic composite material and manufacturing method thereof | |
| EP3569647B1 (en) | Method for preparing foamed thermoplastic polyurethane elastomer product | |
| CN103709775A (en) | Preparation method of high-strength wood-plastic composite section bar | |
| CN108822569B (en) | Wood-plastic foaming material and preparation method thereof | |
| CN103319818B (en) | A kind of polyvinyl chloride bamboo utilizing bamboo powder to produce moulds the preparation method of goods | |
| CN103709774A (en) | Wood-plastic composite material and preparation method thereof | |
| CN106280185A (en) | A kind of light wood-plastic composite fiber plate and preparation method thereof | |
| CN100393810C (en) | Bamboo powder-polyvinyl chloride composite materials and process for preparing same | |
| CN105086094A (en) | Environment-friendly wood-plastic board and preparation method thereof | |
| CN105694206B (en) | A kind of method for making foaming agent production long glass fiber-reinforced polypropylene foaming injection product with water | |
| CN107383517A (en) | A kind of plastic plate, section bar and production method | |
| CN102181167B (en) | Amino mold reinforcement polyvinyl chloride (PVC) base wood plastics composite and preparation method thereof | |
| CN110256845A (en) | A kind of chopped strand enhancing nylon resin composite material and preparation method | |
| CN102336977B (en) | Fully plastic wood-imitation material and preparation method thereof | |
| CN104761819A (en) | Method for preparing polyethylene-based wood-plastic composite material by utilizing bamboo powder | |
| CN107266856A (en) | A kind of heat-resisting PEEK composites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |