CN103254653A - Basalt fiber reinforced wood-plastic composite material and preparation method thereof - Google Patents
Basalt fiber reinforced wood-plastic composite material and preparation method thereof Download PDFInfo
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- CN103254653A CN103254653A CN2013102012403A CN201310201240A CN103254653A CN 103254653 A CN103254653 A CN 103254653A CN 2013102012403 A CN2013102012403 A CN 2013102012403A CN 201310201240 A CN201310201240 A CN 201310201240A CN 103254653 A CN103254653 A CN 103254653A
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Abstract
The invention discloses a basalt fiber reinforced wood-plastic composite material and a preparation method thereof, and relates to a wood-plastic composite material and the preparation method thereof. The problem of bad comprehensive mechanical property of the current wood-plastic composite material is solved. The material is prepared from thermoplastic plastic, a wood fiber material, modified basalt fibers, a bulking agent and a lubricant. The preparation method comprises the following steps: 1. pre-treating the wood fiber material; 2. sequentially putting the raw materials in a high-speed mixer to be stirred, discharging the materials into a low-speed cold mixer to be stirred, and cooling the materials to obtain premix; and 3. carrying out extrusion forming on the premix. Beside keeping the advantages of good weather fastness, thermal insulation, water resistance, corrosion resistance, and the like, the basalt fiber reinforced wood-plastic composite material provided by the invention has the advantages that the mechanical property is greatly improved compared with common wood-plastic composite materials, and the problems of low mechanical strength and large brittleness of traditional wood-plastic composite material products are well solved. Leftover materials generated in the production process of the basalt fiber reinforced wood-plastic composite material provided by the invention can be entirely recycled, few additives are added, and the basalt fiber reinforced wood-plastic composite material is environment-friendly, thereby being a typical environment-friendly material.
Description
Technical field
The present invention relates to wood plastic composite and preparation method thereof.
Background technology
Wood plastic composite (WPC) can utilize waste wood filamentary material and waste or used plastics as main raw material, environmental protection, reusable edible is to solve natural and the synthesized polymer material changing rejected material to useful resource efficiently utilizes the important channel of problem, thereby receives much attention.This matrix material is bigger than the surface hardness of timber, and dimensional stability, water tolerance, erosion resistance all are better than timber, and does not generally need surface daub on a wall, meets the needs of future economy development, has a extensive future.
Wood plastic composite has numerous advantages of timber and plastics concurrently, its market growth very fast, the particularly application aspect building and automobile.And on the other hand, Kuo Zhang market is used widely for wood plastic composite again and has been proposed higher performance requriements rapidly.Such as, be applied in fields such as structure and engineering materials when it, must have higher comprehensive mechanical property.
Also there is shortcoming in wood plastic composite when having plurality of advantages, wherein outstanding shortcoming flexible difference and intensity are not high, especially be difficult to the product that acquisition has high strength and high tenacity simultaneously, make the problem of existing wood plastic composite ubiquity comprehensive mechanical property difference.Prior art has been carried out research widely for this reason, for example: many coupling agents (or compatilizer) as: maleic anhydride graft polyolefine, silane, isocyanic ester etc. are used to improve stretching and the flexural strength of wood plastic composite, but the impelling strength of wood plastic composite does not improve even decreases; The adding of styrene-butadiene rubber(SBR) (SBR), SEBS, EPDM, EOR, EMA, thermoplastic elastomers such as EBAGMA, EPR-g-MA, the impelling strength of wood plastic composite more or less is improved, but its intensity and modulus often reduce; The foaming technique of wood plastic composite can significantly improve its toughness and shock resistance, but foaming causes rigidity, intensity and the creep property of material relatively poor, has seriously limited its application.
Basalt fibre (Basalt Fiber is called for short BF) is a kind of novel high-performance fiber that the natural basalt ore is made by the platinum rhodium wire drawing after high-temperature fusion.Along with the birth of brand-new less energy-consumption production equipment, its high performance-price ratio advantage highlights gradually in recent years.The basalt fibre raw material sources are wide, cost is low, and have premium propertiess such as high temperature resistant, corrosion-resistant, heat insulation, sound-absorbing and low moisture absorption, be considered to be expected to replace expensive carbon fiber, and become emerging high-intensity fiber, be widely used in the traffic road surface, numerous areas such as building reinforce.
Summary of the invention
The present invention seeks in order to solve the problem of existing wood plastic composite comprehensive mechanical property difference, and provide basalt fibre to strengthen wood plastic composite and preparation method thereof.
Basalt fibre strengthens wood plastic composite, is made by 95～105 parts thermoplastics, 50～300 parts lignocellulosic material, 1～50 part modification basalt fibre, 5～20 parts expanding material, 1～10 part lubricant according to ratio of weight and number; Wherein thermoplastics is one or more in polystyrene, polyethylene, high density polyethylene(HDPE), Low Density Polyethylene, polyvinyl chloride, the acrylonitrile-butadiene-styrene copolymer; Lignocellulosic material is any or several of wood powder, bamboo powder, agricultural crop straw powder, shell powder; Expanding material is one or more in maleic anhydride graft styrene-ethylene-butadiene-styrene block copolymer, maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, the methacryloxypropyl trimethoxy silane; Lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax; Metallic stearates is one or more in sodium stearate, strontium stearate, calcium stearate, the Zinic stearas.
The method for preparing basalt fibre enhancing wood plastic composite is carried out according to the following steps:
One, lignocellulosic material being joined in the high-speed mixer, is that 105～150 ℃, rotating speed are to stir 5～15min under the condition of 400～1800r/min in temperature, obtains water ratio and be 1.5%～2.5% lignocellulosic material;
Two, take by weighing 100 parts thermoplastics, 50～300 parts lignocellulosic material, 1～50 part modification basalt fibre, 5～20 parts expanding material, 1～10 part lubricant according to ratio of weight and number, put into high-speed mixer successively, be that 400～1800r/min, temperature are to stir 5～20min under 105～180 ℃ the condition at rotating speed, discharging is to the low speed cold mixer, rotating speed with 20～100r/min stirs and the water flowing cooling, and discharging obtains Preblend when temperature of charge is lower than 80 ℃;
Three, Preblend is extruded unit or conical double screw extruder extrusion moulding by single screw extrusion machine, the two rank of parallel double-screw, namely obtains basalt fibre and strengthens wood plastic composite;
Wherein thermoplastics is one or more in polystyrene, polyethylene, high density polyethylene(HDPE), Low Density Polyethylene, polyvinyl chloride, the acrylonitrile-butadiene-styrene copolymer;
Lignocellulosic material is any or several of wood powder, bamboo powder, agricultural crop straw powder, shell powder;
Expanding material is one or more in maleic anhydride graft styrene-ethylene-butadiene-styrene block copolymer, maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, the methacryloxypropyl trimethoxy silane;
Lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax; Metallic stearates is one or more in sodium stearate, strontium stearate, calcium stearate, the Zinic stearas.
Advantage of the present invention:
The basalt fibre that adopts the present invention to make strengthens wood plastic composite, can process with the mode of converted timbers such as slicing, saw, nailing, stubborn brill, has excellent processing characteristics.Except having kept good weatherability, advantage such as heat insulation, water-fast, corrosion-resistant, its mechanical property significantly improves than normal wood plastic composite materials, has solved the problem that wood plastic composite product mechanical strength was low in the past, fragility is big well.Basalt fibre is the high strength fibre of performance between carbon fiber and glass fibre, and in some occasion even can substitute carbon fiber, when giving the wood plastic composite excellent properties, price is far below carbon fiber as strongthener, and cost performance is very high.
All recyclings of the leftover bits that produce in the production process of the present invention, it is few, environmentally friendly to add auxiliary agent, is typical green material.Utilize this matrix material can prepare the special-shaped engineering materials of multiple complex-shaped, dimensional stabilizing, as wood-plastic door window, indoor and outdoor wallboard, whole stair etc.
Basalt fibre enhancing wood plastic composite compares with every mechanical property of not adding the wood plastic composite of basalt fibre among the present invention, the result has improved 10% respectively for tensile strength, modulus in tension, flexural strength, modulus in flexure, the socle girder unnotched impact strength that basalt fibre among the present invention strengthens wood plastic composite, 13%, 14%-17%, 4%-10%, 15%-24%.
Embodiment
Embodiment one: the present embodiment basalt fibre strengthens wood plastic composite, is made by 95～105 parts thermoplastics, 50～300 parts lignocellulosic material, 1～50 part modification basalt fibre, 5～20 parts expanding material, 1～10 part lubricant according to ratio of weight and number; Wherein thermoplastics is one or more in polystyrene, polyethylene, high density polyethylene(HDPE), Low Density Polyethylene, polyvinyl chloride, the acrylonitrile-butadiene-styrene copolymer; Lignocellulosic material is any or several of wood powder, bamboo powder, agricultural crop straw powder, shell powder; Expanding material is one or more in maleic anhydride graft styrene-ethylene-butadiene-styrene block copolymer, maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, the methacryloxypropyl trimethoxy silane; Lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax; Metallic stearates is one or more in sodium stearate, strontium stearate, calcium stearate, the Zinic stearas.
Be that arbitrary proportion mixes when thermoplastics is several in the present embodiment; Lignocellulosic material is that arbitrary proportion mixes when being several; Expanding material is that arbitrary proportion mixes when being several; Metallic stearates is that arbitrary proportion mixes when being several.
Used expanding material and lubricant in the present embodiment mainly are in order to improve the interface compatibility between basalt fibre, lignocellulosic material and the plastics, the mechanical property of improving material and processing characteristics.
Embodiment two: what present embodiment and embodiment one were different is that basalt fibre strengthens wood plastic composite, is made by 100 parts thermoplastics, 100 parts lignocellulosic material, 25 parts modification basalt fibre, 10 parts expanding material, 5 parts lubricant according to ratio of weight and number.Other is identical with embodiment one.
Embodiment three: what present embodiment was different with embodiment one or two is that described lignocellulosic material is 20～100 purpose fiber fines.Other is identical with embodiment one or two.
Embodiment four: present embodiment is different with one of embodiment one to three is that farm crop in the described agricultural crop straw powder are corn, wheat, paddy rice, soybean or Chinese sorghum.Other is identical with one of embodiment one to three.
Embodiment five: present embodiment is different with one of embodiment one to four is being prepared as follows of described modification basalt fibre: a, vinyl silicane coupling agent with aqueous ethanolic solution according to mass volume ratio 300g: 1000ml mixes, and obtains solution A; B, basalt fibre being placed solution A, is 25～60 ℃ of reaction 20～40min down in temperature, and dry 20～30h at ambient temperature after the taking-up places 105～150 ℃ of baking ovens to heat 1～3h again, namely obtains the modification basalt fibre; The volume ratio of dehydrated alcohol and distilled water is 9: 1 in the wherein said aqueous ethanolic solution, and the pH value is 3～4; The mass ratio of vinyl silicane coupling agent and basalt fibre is 1～4: 100; Vinyl silicane coupling agent is one or more in vinyl trichloro silane, vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three ('beta '-methoxy oxyethyl group) silane, the vinyl three tert.-butoxy silane; Basalt fibre is that the basalt ore is made by the platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 7～25 μ m, and it is 6～9mm that weak point is cut length, and water ratio is≤0.2%, and the short rate of cutting is 〉=95%.Other is identical with one of embodiment one to four.
Embodiment six: present embodiment prepares the method for basalt fibre enhancing wood plastic composite and carries out according to the following steps:
One, lignocellulosic material being joined in the high-speed mixer, is that 105～150 ℃, rotating speed are to stir 5～15min under the condition of 400～1800r/min in temperature, obtains water ratio and be 1.5%～2.5% lignocellulosic material;
Two, take by weighing 100 parts thermoplastics, 50～300 parts lignocellulosic material, 1～50 part modification basalt fibre, 5～20 parts expanding material, 1～10 part lubricant according to ratio of weight and number, put into high-speed mixer successively, be that 400～1800r/min, temperature are to stir 5～20min under 105～180 ℃ the condition at rotating speed, discharging is to the low speed cold mixer, rotating speed with 20～100r/min stirs and the water flowing cooling, and discharging obtains Preblend when temperature of charge is lower than 80 ℃;
Three, Preblend is extruded unit or conical double screw extruder extrusion moulding by single screw extrusion machine, the two rank of parallel double-screw, namely obtains basalt fibre and strengthens wood plastic composite;
Wherein thermoplastics is one or more in polystyrene, polyethylene, high density polyethylene(HDPE), Low Density Polyethylene, polyvinyl chloride, the acrylonitrile-butadiene-styrene copolymer;
Lignocellulosic material is any or several of wood powder, bamboo powder, agricultural crop straw powder, shell powder;
Expanding material is one or more in maleic anhydride graft styrene-ethylene-butadiene-styrene block copolymer, maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, the methacryloxypropyl trimethoxy silane;
Lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax; Metallic stearates is one or more in sodium stearate, strontium stearate, calcium stearate, the Zinic stearas.
Embodiment seven: present embodiment and embodiment six are different is to be that 120 ℃, rotating speed are to stir 10min under the condition of 1200r/min in temperature in the step 1, obtains water ratio and be≤2% lignocellulosic material.Other step and parameter are identical with one of embodiment four to six.
Embodiment eight: what present embodiment was different with embodiment six or seven is to take by weighing 100 parts thermoplastics, 150 parts lignocellulosic material, 25 parts modification basalt fibre, 10 parts expanding material, 5 parts lubricant according to ratio of weight and number in the step 2, put into high-speed mixer successively, be that 1200r/min, temperature are to stir 10min under 150 ℃ the condition at rotating speed, discharging is to the low speed cold mixer, with rotating speed stirring and the water flowing cooling of 80r/min.Other step and parameter are identical with embodiment six or seven.
Embodiment nine: what present embodiment was different with one of embodiment six to eight is that lignocellulosic material described in the step 1 is 20～100 purpose fiber fines.Other is identical with one of embodiment six to eight.
Embodiment ten: present embodiment is different with one of embodiment six to nine is that farm crop in the powder of agricultural crop straw described in the step 2 are corn, wheat, paddy rice, soybean or Chinese sorghum.Other is identical with one of embodiment six to nine.
Embodiment 11: present embodiment is different with one of embodiment six to ten is being prepared as follows of the basalt fibre of modification described in the step 2: a, vinyl silicane coupling agent with aqueous ethanolic solution according to mass volume ratio 300g: 1000ml mixes, and obtains solution A; B, basalt fibre being placed solution A, is 25～60 ℃ of reaction 20～40min down in temperature, and dry 20～30h at ambient temperature after the taking-up places 105～150 ℃ of baking ovens to heat 1～3h again, namely obtains the modification basalt fibre; The volume ratio of dehydrated alcohol and distilled water is 9: 1 in the wherein said aqueous ethanolic solution, and the pH value is 3～4; The mass ratio of vinyl silicane coupling agent and basalt fibre is 1～4: 100; Vinyl silicane coupling agent is one or more in vinyl trichloro silane, vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three ('beta '-methoxy oxyethyl group) silane, the vinyl three tert.-butoxy silane; Basalt fibre is that the basalt ore is made by the platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 7～25 μ m, and it is 6～9mm that weak point is cut length, and water ratio is≤0.2%, and the short rate of cutting is 〉=95%.Other is identical with one of embodiment one to four.
Embodiment 12: what present embodiment was different with one of embodiment six to 11 is that the extruder barrel Heating temperature that unit or conical double screw extruder are extruded in the two rank of single screw extrusion machine in the step 3, parallel double-screw is 110～175 ℃, and die temperature is 140～165 ℃.Other step and parameter are identical with one of embodiment six to 11.
Embodiment 1:
The method for preparing basalt fibre enhancing wood plastic composite is carried out according to the following steps:
One, lignocellulosic material being joined in the high-speed mixer, is that 130 ℃, rotating speed are to stir 10min under the condition of 1200r/min in temperature, obtains water ratio and be≤2% lignocellulosic material;
Two, take by weighing 100 parts thermoplastics, 156 parts lignocellulosic material, 11 parts modification basalt fibre, 12 parts expanding material, 6 parts lubricant according to ratio of weight and number, put into high-speed mixer successively, be that 1200r/min, temperature are to stir 15min under 130 ℃ the condition at rotating speed, discharging is to the low speed cold mixer, rotating speed with 80r/min stirs and the water flowing cooling, and discharging obtains Preblend when temperature of charge is lower than 80 ℃;
Three, Preblend namely obtains basalt fibre and strengthens wood plastic composite by the single screw extrusion machine extrusion moulding;
Wherein thermoplastics is high density polyethylene(HDPE); Lignocellulosic material is wood powder; Expanding material is maleic anhydride grafted polyethylene; Lubricant is stearic acid.
Being prepared as follows of described modification basalt fibre: a, vinyl silicane coupling agent and aqueous ethanolic solution are according to mass volume ratio 300g: 1000ml mixes, and obtains solution A; B, basalt fibre being placed solution A, is 45 ℃ of reaction 30min down in temperature, and dry 25h at ambient temperature after the taking-up places 120 ℃ of baking ovens to heat 2h again, namely obtains the modification basalt fibre; The volume ratio of dehydrated alcohol and distilled water is 9: 1 in the wherein said aqueous ethanolic solution, and the pH value is 3; The mass ratio of vinyl silicane coupling agent and basalt fibre is 2: 100; Vinyl silicane coupling agent is vinyltriethoxysilane; Basalt fibre is that the basalt ore is made by the platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 10 μ m, and it is 6mm that weak point is cut length, and water ratio is≤0.2%, and the short rate of cutting is 〉=95%.
The extruder barrel Heating temperature of described single screw extrusion machine is 155 ℃, and die temperature is 160 ℃.
Contrast material: do not add the wood plastic composite of modification basalt fibre, made by 100 parts thermoplastics, 167 parts lignocellulosic material, 12 parts compatilizer and 6 parts lubricant by ratio of weight and the number of copies; Other is identical with embodiment.
It is the sheet material of the wide 40mm of sectional dimension and thick 4mm that present embodiment prepares gained basalt fibre enhancing wood plastic composite.Be processed into standard specimen through transporting water-cooled shaping, the room temperature placement afterwards of material section, melt stage, this three phases of homogenizing stage after 3 days, carry out Mechanics Performance Testing; Present embodiment gained modification basalt fibre is strengthened wood plastic composite to be compared with the wood plastic composite that does not add basalt fibre, reduced parameter is as shown in table 1, as seen the adding of modification basalt fibre has significantly improved the every mechanical property of wood powder/high-density polyethylene composite material in the present embodiment, the tensile strength of matrix material, modulus in tension, flexural strength, bending elastic modulus, simply supported beam unnotched impact strength have improved 10% respectively, 13%, 14.0%, 4%, 24%.
Table 1
Embodiment 2:
The method for preparing basalt fibre enhancing wood plastic composite is carried out according to the following steps:
One, lignocellulosic material being joined in the high-speed mixer, is that 130 ℃, rotating speed are to stir 10min under the condition of 1200r/min in temperature, obtains water ratio and be≤2% lignocellulosic material;
Two, take by weighing 100 parts thermoplastics, 133 parts lignocellulosic material, 33 parts modification basalt fibre, 12 parts expanding material, 6 parts lubricant according to ratio of weight and number, put into high-speed mixer successively, be that 1200r/min, temperature are to stir 15min under 130 ℃ the condition at rotating speed, discharging is to the low speed cold mixer, rotating speed with 80r/min stirs and the water flowing cooling, and discharging obtains Preblend when temperature of charge is lower than 80 ℃;
Three, Preblend namely obtains basalt fibre and strengthens wood plastic composite by the single screw extrusion machine extrusion moulding;
Wherein thermoplastics is high density polyethylene(HDPE); Lignocellulosic material is wood powder; Expanding material is maleic anhydride grafted polyethylene; Lubricant is stearic acid.
Being prepared as follows of described modification basalt fibre: a, vinyl silicane coupling agent and aqueous ethanolic solution are according to mass volume ratio 300g: 1000ml mixes, and obtains solution A; B, basalt fibre being placed solution A, is 45 ℃ of reaction 30min down in temperature, and dry 25h at ambient temperature after the taking-up places 120 ℃ of baking ovens to heat 2h again, namely obtains the modification basalt fibre; The volume ratio of dehydrated alcohol and distilled water is 9: 1 in the wherein said aqueous ethanolic solution, and the pH value is 3; The mass ratio of vinyl silicane coupling agent and basalt fibre is 2: 100; Vinyl silicane coupling agent is vinyltriethoxysilane; Basalt fibre is that the basalt ore is made by the platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 10 μ m, and it is 6mm that weak point is cut length, and water ratio is≤0.2%, and the short rate of cutting is 〉=95%.
The extruder barrel Heating temperature of described single screw extrusion machine is 155 ℃, and die temperature is 160 ℃.
Contrast material: do not add the wood plastic composite of modification basalt fibre, made by 100 parts thermoplastics, 167 parts lignocellulosic material, 12 parts compatilizer and 6 parts lubricant by ratio of weight and the number of copies; Other is identical with embodiment.
It is the sheet material of the wide 40mm of sectional dimension and thick 4mm that present embodiment prepares gained basalt fibre enhancing wood plastic composite.Be processed into standard specimen through transporting water-cooled shaping, the room temperature placement afterwards of material section, melt stage, this three phases of homogenizing stage after 3 days, carry out Mechanics Performance Testing; Present embodiment gained modification basalt fibre is strengthened wood plastic composite to be compared with the wood plastic composite that does not add basalt fibre, reduced parameter is as shown in table 2, as seen the adding of modification basalt fibre has significantly improved the every mechanical property of wood powder/high-density polyethylene composite material in the present embodiment, the tensile strength of matrix material, modulus in tension, flexural strength, modulus in flexure, simply supported beam unnotched impact strength have improved 10% respectively, 13%, 17%, 10%, 15%.
Table 2
Claims (10)
1. basalt fibre strengthens wood plastic composite, it is characterized in that basalt fibre strengthens wood plastic composite, is made by 95～105 parts thermoplastics, 50～300 parts lignocellulosic material, 1～50 part modification basalt fibre, 5～20 parts expanding material, 1～10 part lubricant according to ratio of weight and number; Wherein thermoplastics is one or more in polystyrene, polyethylene, high density polyethylene(HDPE), Low Density Polyethylene, polyvinyl chloride, the acrylonitrile-butadiene-styrene copolymer; Lignocellulosic material is any or several of wood powder, bamboo powder, agricultural crop straw powder, shell powder; Expanding material is one or more in maleic anhydride graft styrene-ethylene-butadiene-styrene block copolymer, maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, the methacryloxypropyl trimethoxy silane; Lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax; Metallic stearates is one or more in sodium stearate, strontium stearate, calcium stearate, the Zinic stearas.
2. basalt fibre according to claim 1 strengthens wood plastic composite, it is characterized in that basalt fibre strengthens wood plastic composite, is made by 100 parts thermoplastics, 100 parts lignocellulosic material, 25 parts modification basalt fibre, 10 parts expanding material, 5 parts lubricant according to ratio of weight and number.
3. basalt fibre according to claim 1 and 2 strengthens wood plastic composite, it is characterized in that described lignocellulosic material is 20～100 purpose fiber fines.
4. basalt fibre according to claim 3 strengthens wood plastic composite, it is characterized in that the farm crop in the described agricultural crop straw powder are corn, wheat, paddy rice, soybean or Chinese sorghum.
5. basalt fibre according to claim 4 strengthens wood plastic composite, it is characterized in that being prepared as follows of described modification basalt fibre: a, vinyl silicane coupling agent and aqueous ethanolic solution are according to mass volume ratio 300g: 1000ml mixes, and obtains solution A; B, basalt fibre being placed solution A, is 25～60 ℃ of reaction 20～40min down in temperature, and dry 20～30h at ambient temperature after the taking-up places 105～150 ℃ of baking ovens to heat 1～3h again, namely obtains the modification basalt fibre; The volume ratio of dehydrated alcohol and distilled water is 9: 1 in the wherein said aqueous ethanolic solution, and the pH value is 3～4; The mass ratio of vinyl silicane coupling agent and basalt fibre is 1～4: 100; Vinyl silicane coupling agent is one or more in vinyl trichloro silane, vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three ('beta '-methoxy oxyethyl group) silane, the vinyl three tert.-butoxy silane; Basalt fibre is that the basalt ore is made by the platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 7～25 μ m, and it is 6～9mm that weak point is cut length, and water ratio is≤0.2%, and the short rate of cutting is 〉=95%.
6. prepare the method that basalt fibre as claimed in claim 1 strengthens wood plastic composite, it is characterized in that it carries out according to the following steps:
One, lignocellulosic material being joined in the high-speed mixer, is that 105～150 ℃, rotating speed are to stir 5～15min under the condition of 400～1800r/min in temperature, obtains water ratio and be 1.5%～2.5% lignocellulosic material;
Two, take by weighing 100 parts thermoplastics, 50～300 parts lignocellulosic material, 1～50 part modification basalt fibre, 5～20 parts expanding material, 1～10 part lubricant according to ratio of weight and number, put into high-speed mixer successively, be that 400～1800r/min, temperature are to stir 5～20min under 105～180 ℃ the condition at rotating speed, discharging is to the low speed cold mixer, rotating speed with 20～100r/min stirs and the water flowing cooling, and discharging obtains Preblend when temperature of charge is lower than 80 ℃;
Three, Preblend is extruded unit or conical double screw extruder extrusion moulding by single screw extrusion machine, the two rank of parallel double-screw, namely obtains basalt fibre and strengthens wood plastic composite;
Wherein thermoplastics is one or more in polystyrene, polyethylene, high density polyethylene(HDPE), Low Density Polyethylene, polyvinyl chloride, the acrylonitrile-butadiene-styrene copolymer;
Lignocellulosic material is any or several of wood powder, bamboo powder, agricultural crop straw powder, shell powder;
Expanding material is one or more in maleic anhydride graft styrene-ethylene-butadiene-styrene block copolymer, maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, the methacryloxypropyl trimethoxy silane;
Lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax; Metallic stearates is one or more in sodium stearate, strontium stearate, calcium stearate, the Zinic stearas.
7. basalt fibre according to claim 6 strengthens the preparation method of wood plastic composite, it is characterized in that in the step 1 in temperature being that 120 ℃, rotating speed are to stir 10min under the condition of 1200r/min, obtains water ratio and be 2% lignocellulosic material.
8. according to the preparation method of claim 6 or 7 described basalt fibres enhancing wood plastic composites, it is characterized in that lignocellulosic material described in the step 1 is 20～100 purpose fiber fines.
9. basalt fibre according to claim 8 strengthens the preparation method of wood plastic composite, it is characterized in that the farm crop in the powder of agricultural crop straw described in the step 2 are corn, wheat, paddy rice, soybean or Chinese sorghum.
10. basalt fibre according to claim 9 strengthens the preparation method of wood plastic composite, it is characterized in that being prepared as follows of the basalt fibre of modification described in the step 2: a, vinyl silicane coupling agent and aqueous ethanolic solution are according to mass volume ratio 300g: 1000ml mixes, and obtains solution A; B, basalt fibre being placed solution A, is 25～60 ℃ of reaction 20～40min down in temperature, and dry 20～30h at ambient temperature after the taking-up places 105～150 ℃ of baking ovens to heat 1～3h again, namely obtains the modification basalt fibre; The volume ratio of dehydrated alcohol and distilled water is 9: 1 in the wherein said aqueous ethanolic solution, and the pH value is 3～4; The mass ratio of vinyl silicane coupling agent and basalt fibre is 1～4: 100; Vinyl silicane coupling agent is one or more in vinyl trichloro silane, vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three ('beta '-methoxy oxyethyl group) silane, the vinyl three tert.-butoxy silane; Basalt fibre is that the basalt ore is made by the platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 7～25 μ m, and it is 6～9mm that weak point is cut length, and water ratio is≤0.2%, and the short rate of cutting is 〉=95%.
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| CN108467602A (en) * | 2018-03-26 | 2018-08-31 | 贵港市万升木业有限公司 | A method of preparing wood plastic composite using cherry sawdust |
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| CN108948763A (en) * | 2018-06-02 | 2018-12-07 | 王伟 | A kind of preparation method of the enhanced wood plastic composite of heatproof |
| CN109054250A (en) * | 2018-08-06 | 2018-12-21 | 合肥岑遥新材料科技有限公司 | A kind of wood plastic composite of high mallow stem hide fiber enhancing and its application |
| CN109135110A (en) * | 2018-08-06 | 2019-01-04 | 合肥岑遥新材料科技有限公司 | A kind of preparation method of high-intensity shielding type wood plastic composite |
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| CN108033755A (en) * | 2017-12-23 | 2018-05-15 | 安徽国电能源设备工程有限公司 | A kind of fireproof thermal-insulation composite material for building |
| CN108641387A (en) * | 2018-03-26 | 2018-10-12 | 贵港市万升木业有限公司 | A method of preparing wood plastic composite using walnut sawdust |
| CN108467602A (en) * | 2018-03-26 | 2018-08-31 | 贵港市万升木业有限公司 | A method of preparing wood plastic composite using cherry sawdust |
| CN108948763A (en) * | 2018-06-02 | 2018-12-07 | 王伟 | A kind of preparation method of the enhanced wood plastic composite of heatproof |
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| CN109608783A (en) * | 2018-10-26 | 2019-04-12 | 安徽实力环保科技有限公司 | A method of with nano silica reinforced plastics waste residue-stalk fibre wood plastic composite |
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| CN110804319A (en) * | 2019-12-10 | 2020-02-18 | 界首市旭升塑胶制品有限公司 | Preparation method of high-strength high-stability wood-plastic composite material |
| CN112031527A (en) * | 2020-09-09 | 2020-12-04 | 浙江诚成新材料科技有限公司 | Board rail is moulded to multi-functional wood |
| CN113234329A (en) * | 2021-06-16 | 2021-08-10 | 东北林业大学 | Preparation method of basalt fiber reinforced flame-retardant wood-plastic composite material |
| CN114479237A (en) * | 2021-12-24 | 2022-05-13 | 鞍钢集团矿业有限公司 | High-density polyethylene composite material and preparation method thereof |
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Effective date of registration: 20160918 Address after: 134300 No. 252, general road, Jingyu County, Jilin Province Patentee after: Jilin Habod New Materials Technology Co. Ltd. Address before: 150040 Xiangfang District, Heilongjiang, and Hing Road, No. 26, Harbin Patentee before: Northeast Forestry University |