CN103254653B - Basalt fibre strengthens wood plastic composite and preparation method thereof - Google Patents
Basalt fibre strengthens wood plastic composite and preparation method thereof Download PDFInfo
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- CN103254653B CN103254653B CN201310201240.3A CN201310201240A CN103254653B CN 103254653 B CN103254653 B CN 103254653B CN 201310201240 A CN201310201240 A CN 201310201240A CN 103254653 B CN103254653 B CN 103254653B
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Abstract
Basalt fibre strengthens wood plastic composite and preparation method thereof, and it relates to wood plastic composite and preparation method thereof.It will solve the problem of existing wood plastic composite comprehensive mechanical property difference.Material is made up of thermoplastics, lignocellulosic material, treated basalt fiber, expanding material and lubricant.Method: one, lignocellulosic material pre-treatment; Two, raw material is put into high-speed mixer successively and is stirred, and stirs and cools, obtain Preblend in discharging to low speed cold mixer; Three, Preblend extrusion moulding.Gained basalt fibre of the present invention strengthens wood plastic composite except maintaining good weatherability, the advantage such as heat insulation, water-fast, corrosion-resistant, its mechanical property significantly improves than normal wood plastic composite materials, solves the problem that wood-plastic composite material products mechanical strength is low, fragility is large in the past well.The leftover bits produced in production process of the present invention can all recyclings, and adding auxiliary agent few, environmentally friendly, is typical green 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 solve important channel that is natural and synthesized polymer material changing rejected material to useful resource efficiency utilization problem, thus receives much attention.This matrix material is larger than the surface hardness of timber, and dimensional stability, water tolerance, erosion resistance are all better than timber, and generally do not need surface daub on a wall, meet the needs of economic development, have a extensive future.
Wood plastic composite has the many merits of timber and plastics concurrently, its market growth very fast, the application particularly in building and automobile.And on the other hand, the market of explosion is applied widely for wood plastic composite again and is proposed higher performance requriements.Such as, when it is applied in the field such as structure and engineering materials, higher comprehensive mechanical property must be had.
Also shortcoming is there is in wood plastic composite while having plurality of advantages, wherein comparatively outstanding shortcoming flexible is poor and intensity is 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 conducts extensive research for this reason, such as: many coupling agents (or compatilizer) as: maleic anhydride stem grafting polyolefin, silane, isocyanic ester etc. are used to improve the stretching of wood plastic composite and flexural strength, but the impelling strength of wood plastic composite does not improve and even decreasing; Adding of the thermoplastic elastomer such as styrene-butadiene rubber(SBR) (SBR), SEBS, EPDM, EOR, EMA, EBAGMA, EPR-g-MA, the impelling strength of wood plastic composite is more or less improved, but its strength and modulus often reduces; The foaming technique of wood plastic composite can significantly improve its toughness and shock resistance, but foaming causes the rigidity of material, intensity and creep property poor, seriously limits its application.
Basalt fibre (Basalt Fiber, be called for short BF) be natural basalt ore after high-temperature fusion by a kind of novel high-performance fiber that platinum rhodium wire drawing is made.In recent years along with the birth of brand-new less energy-consumption production equipment, its high performance-price ratio advantage highlights gradually.Basalt fibre raw material sources are wide, cost is low, and there is high temperature resistant, corrosion-resistant, heat insulation, the premium properties such as 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 traffic, the numerous areas such as building reinforce.
Summary of the invention
The present invention seeks to the problem in order to solve 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 up of the thermoplastics of 95 ~ 105 parts, the lignocellulosic material of 50 ~ 300 parts, the treated basalt fiber of 1 ~ 50 part, the expanding material of 5 ~ 20 parts, the lubricant of 1 ~ 10 part 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, acrylonitrile-butadiene-styrene copolymer; Lignocellulosic material be wood powder, bamboo powder, agricultural residues powder, shell powder any one or more; 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 grafted polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, 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, Zinic stearas.
The method preparing basalt fibre enhancing wood plastic composite is carried out according to the following steps:
One, lignocellulosic material is joined in high-speed mixer, temperature be 105 ~ 150 DEG C, rotating speed be the condition of 400 ~ 1800r/min under stir 5 ~ 15min, obtain water ratio be the lignocellulosic material of 1.5% ~ 2.5%;
Two, the thermoplastics of 100 parts, the lignocellulosic material of 50 ~ 300 parts, the treated basalt fiber of 1 ~ 50 part, the expanding material of 5 ~ 20 parts, the lubricant of 1 ~ 10 part is taken according to ratio of weight and number, put into high-speed mixer successively, rotating speed be 400 ~ 1800r/min, temperature be the condition of 105 ~ 180 DEG C under stir 5 ~ 20min, discharging is in low speed cold mixer, stir with the rotating speed of 20 ~ 100r/min and water flowing cooling, when temperature of charge obtains Preblend lower than discharging when 80 DEG C;
Three, Preblend is by single screw extrusion machine, parallel double-screw Dual inoculation group or conical double screw extruder extrusion moulding, 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, acrylonitrile-butadiene-styrene copolymer;
Lignocellulosic material be wood powder, bamboo powder, agricultural residues powder, shell powder any one or more;
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 grafted polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, 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, Zinic stearas.
Advantage of the present invention:
The basalt fibre adopting the present invention to manufacture strengthens wood plastic composite, can process, have excellent processing characteristics by the mode of the converted timbers such as slicing, saw, nailing, stubborn brill.Except maintaining good weatherability, the advantage such as heat insulation, water-fast, corrosion-resistant, its mechanical property significantly improves than normal wood plastic composite materials, solves the problem that wood-plastic composite material products mechanical strength is low, fragility is large in the past well.Basalt fibre is the high strength fibre of performance between carbon fiber and glass fibre, even can substitute carbon fiber in some occasion, and as strongthener while imparting wood plastic composite excellent properties, price is far below carbon fiber, and cost performance is very high.
The leftover bits produced in production process of the present invention can all recyclings, and adding auxiliary agent few, environmentally friendly, is typical green material.Utilize this matrix material can prepare the special-shaped engineering materials of various shape complexity, dimensional stabilizing, as wood-plastic door window, indoor and outdoor wallboard, overall stair etc.
In the present invention, basalt fibre enhancing wood plastic composite contrasts with every mechanical property of the wood plastic composite not adding basalt fibre, result is that in the present invention, basalt fibre strengthens the tensile strength of wood plastic composite, modulus in tension, flexural strength, modulus in flexure, socle girder unnotched impact strength improve 10% respectively, 13%, 14%-17%, 4%-10%, 15%-24%.
Embodiment
Embodiment one: present embodiment basalt fibre strengthens wood plastic composite, is made up of the thermoplastics of 95 ~ 105 parts, the lignocellulosic material of 50 ~ 300 parts, the treated basalt fiber of 1 ~ 50 part, the expanding material of 5 ~ 20 parts, the lubricant of 1 ~ 10 part 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, acrylonitrile-butadiene-styrene copolymer; Lignocellulosic material be wood powder, bamboo powder, agricultural residues powder, shell powder any one or more; 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 grafted polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, 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, Zinic stearas.
It is arbitrary proportion mixing when in present embodiment, thermoplastics is several; Lignocellulosic material is arbitrary proportion mixing when being several; Expanding material is arbitrary proportion mixing when being several; Metallic stearates is arbitrary proportion mixing when being several.
Expanding material used and lubricant in present embodiment, mainly in order to improve basalt fibre, the interface compatibility between lignocellulosic material and plastics, the mechanical property improving material and processing characteristics.
Embodiment two: present embodiment and embodiment one strengthen wood plastic composite unlike basalt fibre, is made up of the thermoplastics of 100 parts, the lignocellulosic material of 100 parts, the treated basalt fiber of 25 parts, the expanding material of 10 parts, the lubricant of 5 parts according to ratio of weight and number.Other is identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two are 20 ~ 100 object fiber fines unlike described lignocellulosic material.Other is identical with embodiment one or two.
Embodiment four: one of present embodiment and embodiment one to three are corn, wheat, paddy rice, soybean or Chinese sorghum unlike the farm crop in described agricultural residues powder.Other is identical with one of embodiment one to three.
Embodiment five: present embodiment and one of embodiment one to four being prepared as follows unlike described treated basalt fiber: a, vinyl silicane coupling agent mix according to mass volume ratio 300g: 1000ml with aqueous ethanolic solution, obtains solution A; B, basalt fibre is placed in solution A, at temperature is 25 ~ 60 DEG C, reacts 20 ~ 40min, dry 20 ~ 30h at ambient temperature after taking-up, then be placed in 105 ~ 150 DEG C of baking ovens heating 1 ~ 3h, namely obtain treated basalt fiber; In wherein said aqueous ethanolic solution, the volume ratio of dehydrated alcohol and distilled water is 9: 1, and 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, vinyl three tert-butoxy silane; Basalt fibre is that basalt ore is made by platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 7 ~ 25 μm, and chopped length is 6 ~ 9mm, and water ratio is≤0.2%, and short rate of cutting is >=95%.Other is identical with one of embodiment one to four.
Embodiment six: the method that present embodiment prepares basalt fibre enhancing wood plastic composite is carried out according to the following steps:
One, lignocellulosic material is joined in high-speed mixer, temperature be 105 ~ 150 DEG C, rotating speed be the condition of 400 ~ 1800r/min under stir 5 ~ 15min, obtain water ratio be the lignocellulosic material of 1.5% ~ 2.5%;
Two, the thermoplastics of 100 parts, the lignocellulosic material of 50 ~ 300 parts, the treated basalt fiber of 1 ~ 50 part, the expanding material of 5 ~ 20 parts, the lubricant of 1 ~ 10 part is taken according to ratio of weight and number, put into high-speed mixer successively, rotating speed be 400 ~ 1800r/min, temperature be the condition of 105 ~ 180 DEG C under stir 5 ~ 20min, discharging is in low speed cold mixer, stir with the rotating speed of 20 ~ 100r/min and water flowing cooling, when temperature of charge obtains Preblend lower than discharging when 80 DEG C;
Three, Preblend is by single screw extrusion machine, parallel double-screw Dual inoculation group or conical double screw extruder extrusion moulding, 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, acrylonitrile-butadiene-styrene copolymer;
Lignocellulosic material be wood powder, bamboo powder, agricultural residues powder, shell powder any one or more;
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 grafted polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, 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, Zinic stearas.
Embodiment seven: present embodiment and embodiment six unlike in step one temperature be 120 DEG C, rotating speed stirs 10min under being the condition of 1200r/min, obtaining water ratio is the lignocellulosic material of≤2%.Other step and parameter identical with one of embodiment four to six.
Embodiment eight: present embodiment and embodiment six or seven take the thermoplastics of 100 parts, the lignocellulosic material of 150 parts, the treated basalt fiber of 25 parts, the expanding material of 10 parts, the lubricant of 5 parts unlike in step 2 according to ratio of weight and number, put into high-speed mixer successively, rotating speed be 1200r/min, temperature stirs 10min under being the condition of 150 DEG C, discharging, in low speed cold mixer, is stirred with the rotating speed of 80r/min and water flowing cooling.Other step and parameter identical with embodiment six or seven.
Embodiment nine: one of present embodiment and embodiment six to eight are 20 ~ 100 object fiber fines unlike lignocellulosic material described in step one.Other is identical with one of embodiment six to eight.
Embodiment ten: one of present embodiment and embodiment six to nine are corn, wheat, paddy rice, soybean or Chinese sorghum unlike the farm crop in agricultural residues powder described in step 2.Other is identical with one of embodiment six to nine.
Embodiment 11: present embodiment and one of embodiment six to ten being prepared as follows unlike treated basalt fiber described in step 2: a, vinyl silicane coupling agent mix according to mass volume ratio 300g: 1000ml with aqueous ethanolic solution, obtains solution A; B, basalt fibre is placed in solution A, at temperature is 25 ~ 60 DEG C, reacts 20 ~ 40min, dry 20 ~ 30h at ambient temperature after taking-up, then be placed in 105 ~ 150 DEG C of baking ovens heating 1 ~ 3h, namely obtain treated basalt fiber; In wherein said aqueous ethanolic solution, the volume ratio of dehydrated alcohol and distilled water is 9: 1, and 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, vinyl three tert-butoxy silane; Basalt fibre is that basalt ore is made by platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 7 ~ 25 μm, and chopped length is 6 ~ 9mm, and water ratio is≤0.2%, and short rate of cutting is >=95%.Other is identical with one of embodiment one to four.
Embodiment 12: one of present embodiment and embodiment six to ten one are 110 ~ 175 DEG C unlike the extruder barrel Heating temperature of single screw extrusion machine, parallel double-screw Dual inoculation group or conical double screw extruder in step 3, and die temperature is 140 ~ 165 DEG C.Other step and parameter identical with one of embodiment six to ten one.
Embodiment 1:
The method preparing basalt fibre enhancing wood plastic composite is carried out according to the following steps:
One, lignocellulosic material is joined in high-speed mixer, temperature be 130 DEG C, rotating speed stirs 10min under being the condition of 1200r/min, obtaining water ratio is the lignocellulosic material of≤2%;
Two, the thermoplastics of 100 parts, the lignocellulosic material of 156 parts, the treated basalt fiber of 11 parts, the expanding material of 12 parts, the lubricant of 6 parts is taken according to ratio of weight and number, put into high-speed mixer successively, rotating speed be 1200r/min, temperature stirs 15min under being the condition of 130 DEG C, discharging is in low speed cold mixer, stir with the rotating speed of 80r/min and water flowing cooling, when temperature of charge obtains Preblend lower than discharging when 80 DEG C;
Three, Preblend is by single screw extrusion machine extrusion moulding, namely obtains basalt fibre and strengthens wood plastic composite;
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 treated basalt fiber: a, vinyl silicane coupling agent mix according to mass volume ratio 300g: 1000ml with aqueous ethanolic solution, obtain solution A; B, basalt fibre is placed in solution A, at temperature is 45 DEG C, reacts 30min, dry 25h at ambient temperature after taking-up, then be placed in 120 DEG C of baking ovens and heat 2h, namely obtain treated basalt fiber; In wherein said aqueous ethanolic solution, the volume ratio of dehydrated alcohol and distilled water is 9: 1, and 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 basalt ore is made by platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 10 μm, and chopped length is 6mm, and water ratio is≤0.2%, and short rate of cutting is >=95%.
The extruder barrel Heating temperature of described single screw extrusion machine is 155 DEG C, and die temperature is 160 DEG C.
Contrast material: the wood plastic composite not adding treated basalt fiber, is made up of the lubricant of the thermoplastics of 100 parts, the lignocellulosic material of 167 parts, the compatilizer of 12 parts and 6 parts by ratio of weight and the number of copies; Other is identical with embodiment.
The present embodiment is prepared gained basalt fibre and is strengthened the sheet material that wood plastic composite is the wide 40mm of sectional dimension and thick 4mm.After water-cooled shaping, room temperature place 3 days after transporting material section, melt stage, this three phases of homogenization stage, be processed into standard specimen, carry out Mechanics Performance Testing; The present embodiment gained treated basalt fiber is strengthened wood plastic composite contrast with the wood plastic composite not adding basalt fibre, reduced parameter is as shown in table 1, in visible the present embodiment, treated basalt fiber adds and significantly improves the every mechanical property of wood powder/high-density polyethylene composite material, the tensile strength of matrix material, modulus in tension, flexural strength, bending elastic modulus, simply supported beam unnotched impact strength improve 10% respectively, 13%, 14.0%, 4%, 24%.
Table 1
Embodiment 2:
The method preparing basalt fibre enhancing wood plastic composite is carried out according to the following steps:
One, lignocellulosic material is joined in high-speed mixer, temperature be 130 DEG C, rotating speed stirs 10min under being the condition of 1200r/min, obtaining water ratio is the lignocellulosic material of≤2%;
Two, the thermoplastics of 100 parts, the lignocellulosic material of 133 parts, the treated basalt fiber of 33 parts, the expanding material of 12 parts, the lubricant of 6 parts is taken according to ratio of weight and number, put into high-speed mixer successively, rotating speed be 1200r/min, temperature stirs 15min under being the condition of 130 DEG C, discharging is in low speed cold mixer, stir with the rotating speed of 80r/min and water flowing cooling, when temperature of charge obtains Preblend lower than discharging when 80 DEG C;
Three, Preblend is by single screw extrusion machine extrusion moulding, namely obtains basalt fibre and strengthens wood plastic composite;
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 treated basalt fiber: a, vinyl silicane coupling agent mix according to mass volume ratio 300g: 1000ml with aqueous ethanolic solution, obtain solution A; B, basalt fibre is placed in solution A, at temperature is 45 DEG C, reacts 30min, dry 25h at ambient temperature after taking-up, then be placed in 120 DEG C of baking ovens and heat 2h, namely obtain treated basalt fiber; In wherein said aqueous ethanolic solution, the volume ratio of dehydrated alcohol and distilled water is 9: 1, and 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 basalt ore is made by platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 10 μm, and chopped length is 6mm, and water ratio is≤0.2%, and short rate of cutting is >=95%.
The extruder barrel Heating temperature of described single screw extrusion machine is 155 DEG C, and die temperature is 160 DEG C.
Contrast material: the wood plastic composite not adding treated basalt fiber, is made up of the lubricant of the thermoplastics of 100 parts, the lignocellulosic material of 167 parts, the compatilizer of 12 parts and 6 parts by ratio of weight and the number of copies; Other is identical with embodiment.
The present embodiment is prepared gained basalt fibre and is strengthened the sheet material that wood plastic composite is the wide 40mm of sectional dimension and thick 4mm.After water-cooled shaping, room temperature place 3 days after transporting material section, melt stage, this three phases of homogenization stage, be processed into standard specimen, carry out Mechanics Performance Testing; The present embodiment gained treated basalt fiber is strengthened wood plastic composite contrast with the wood plastic composite not adding basalt fibre, reduced parameter is as shown in table 2, in visible the present embodiment, treated basalt fiber adds and significantly improves the every mechanical property of wood powder/high-density polyethylene composite material, the tensile strength of matrix material, modulus in tension, flexural strength, modulus in flexure, simply supported beam unnotched impact strength improve 10% respectively, 13%, 17%, 10%, 15%.
Table 2
Claims (8)
1. basalt fibre strengthens wood plastic composite, it is characterized in that basalt fibre strengthens wood plastic composite, be made up of the thermoplastics of 95 ~ 105 parts, the lignocellulosic material of 50 ~ 300 parts, the treated basalt fiber of 1 ~ 50 part, the expanding material of 5 ~ 20 parts, the lubricant of 1 ~ 10 part according to ratio of weight and number; Wherein thermoplastics is one or more in polystyrene, polyethylene, polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer; Lignocellulosic material be wood powder, bamboo powder, agricultural residues powder, shell powder any one or more; 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 grafted polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, 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, Zinic stearas;
Being prepared as follows of described treated basalt fiber: a, vinyl silicane coupling agent mix according to mass volume ratio 300g ︰ 1000ml with aqueous ethanolic solution, obtain solution A; B, basalt fibre is placed in solution A, at temperature is 25 ~ 60 DEG C, reacts 20 ~ 40min, dry 20 ~ 30h at ambient temperature after taking-up, then be placed in 105 ~ 150 DEG C of baking ovens heating 1 ~ 3h, namely obtain treated basalt fiber; In wherein said aqueous ethanolic solution, the volume ratio of dehydrated alcohol and distilled water is 9:1, and 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, vinyl three tert-butoxy silane; Basalt fibre is that basalt ore is made by platinum rhodium wire drawing after high-temperature fusion, and Fibre diameter is 7 ~ 25 μm, and chopped length is 6 ~ 9mm, and water ratio is≤0.2%, and short rate of cutting is >=95%.
2. basalt fibre according to claim 1 strengthens wood plastic composite, it is characterized in that basalt fibre strengthens wood plastic composite, be made up of the thermoplastics of 100 parts, the lignocellulosic material of 100 parts, the treated basalt fiber of 25 parts, the expanding material of 10 parts, the lubricant of 5 parts 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 object fiber fines.
4. basalt fibre according to claim 3 strengthens wood plastic composite, it is characterized in that the farm crop in described agricultural residues powder are corn, wheat, paddy rice, soybean or Chinese sorghum.
5. preparation basalt fibre as claimed in claim 1 strengthens the method for wood plastic composite, it is characterized in that it carries out according to the following steps:
One, lignocellulosic material is joined in high-speed mixer, temperature be 105 ~ 150 DEG C, rotating speed be the condition of 400 ~ 1800r/min under stir 5 ~ 15min, obtain water ratio be the lignocellulosic material of 1.5% ~ 2.5%;
Two, the thermoplastics of 100 parts, the lignocellulosic material of 50 ~ 300 parts, the treated basalt fiber of 1 ~ 50 part, the expanding material of 5 ~ 20 parts, the lubricant of 1 ~ 10 part is taken according to ratio of weight and number, put into high-speed mixer successively, rotating speed be 400 ~ 1800r/min, temperature be the condition of 105 ~ 180 DEG C under stir 5 ~ 20min, discharging is in low speed cold mixer, stir with the rotating speed of 20 ~ 100r/min and water flowing cooling, when temperature of charge obtains Preblend lower than discharging when 80 DEG C;
Three, Preblend is by single screw extrusion machine, parallel double-screw Dual inoculation group or conical double screw extruder extrusion moulding, namely obtains basalt fibre and strengthens wood plastic composite;
Wherein thermoplastics is one or more in polystyrene, polyethylene, polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer;
Lignocellulosic material be wood powder, bamboo powder, agricultural residues powder, shell powder any one or more;
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 grafted polystyrene, maleic anhydride-styrene segmented copolymer, titanic acid ester, isocyanic ester, hexamethyldisilazane, vinyltrimethoxy silane, aminopropyl triethoxysilane, 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, Zinic stearas.
6. basalt fibre according to claim 5 strengthens the preparation method of wood plastic composite, it is characterized in that in step one temperature be 120 DEG C, rotating speed stirs 10min under being the condition of 1200r/min, obtaining water ratio is the lignocellulosic material of 2%.
7. the basalt fibre according to claim 5 or 6 strengthens the preparation method of wood plastic composite, it is characterized in that lignocellulosic material described in step one is 20 ~ 100 object fiber fines.
8. basalt fibre according to claim 7 strengthens the preparation method of wood plastic composite, it is characterized in that the farm crop in agricultural residues powder described in step 2 are corn, wheat, paddy rice, soybean or Chinese sorghum.
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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 |