CN104004371B - Novel wood-plastic composite material utilizing plant straws and forming plate manufactured by composite material - Google Patents
Novel wood-plastic composite material utilizing plant straws and forming plate manufactured by composite material Download PDFInfo
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Abstract
The invention relates to a novel wood-plastic composite material utilizing plant straws and particularly relates to a novel wood-plastic composite material utilizing plant straws and a forming plate manufactured by the composite material, and belongs to the field of materials. According to the novel wood-plastic composite material utilizing plant straws and the forming plate manufactured by of the composite material disclosed by the invention, the wood-plastic composite material is prepared from the following materials: 65-75 parts of plant fiber acetate, 15-25 parts of waste plastics, 2-4 parts of coupling agent, 5-10 parts of chlorinated polyethylene, 10-15 parts of compatilizer, 1-2 parts of polyethylene wax, 1-2 parts of zinc stearate, 3-7 parts of active calcium carbonate, 0.1-0.3 part of antioxidant and 0.1-0.3 part of phenylethyl salicylate. The composite material has the advantages of being environment-friendly and durable, and long in service life; moreover, compatibility between wood fibers and plastic is high, so that the novel wood-plastic composite material utilizing plant straws and the forming plate manufactured by the composite material are attractive and elegant in appearance in a using process, and can be widely applicable to the fields of building, furniture, packaging, gardens and transportation.
Description
Technical field
The present invention relates to a kind of Novel wood-plastic composite material utilizing straw, particularly relate to a kind of Novel wood-plastic composite material utilizing straw and the profiled sheeting made thereof, belong to Material Field.
Background technology
Wood plastic composite (Wood-Plastic Composites, WPC) is the class advanced composite material be in recent years surging forward both at home and abroad.The trend that combination has become entire society's development moulded by wood.The U.S. extrudes as far back as just starting wood plastics composite decades ago, and development in nearly 5 years is fast especially.Since the nineties in 20th century, many countries in North America, Europe have carried out large quantifier elimination to wood plastic composite, and it is produced and application aspect is also increasing sharply.The wood plastic composite of North America and Europe consumption in 2002 reaches 680,000 tons, by with the speed increment of 14% and 19% before expecting 2010.It not only has the characteristic of natural timber, and can produce multiple color according to demand.Wood plastic composite have uvioresistant, Anti-moth-eating, acid and alkali-resistance, corrosion-resistant, not yielding, do not ftracture, non-maintaining, easy installation, exempt from paint, do not fear wind and rain can very reclaiming, get close to the advantages such as nature.And the timber products of alternative nearly all type.Be mainly used in the industries such as building materials, furniture, logistics packaging, construct platform, railing, pavement can also be applicable to, mark time, outdoor desk-chair, flower stand, tree pond etc., also can be used for the fields such as indoor decoration, logistics, packaging, transport, making pallet simultaneously.Wood plastic composite construction is simple, and common carpenter's apparatus can be used to construct.Build at water bank, in wet environment, wood-plastic products has more obvious advantage.
Novel wood-plastic composite material is a kind of material having development prospect " low-carbon (LC), environmental protection, capable of circulation ".Select correct additive and formula, to make wood plastic composite have good processing characteristics, better physicals, more perfect visual appearance, superior use properties, and longer work-ing life.Most important to the requirement meeting wood plastic composite and production of articles.In the processing of wood plastic composite, because lumber fibre has very strong polarity, wetting ability, and plastics are nonpolar, not hydrophilic, lumber fibre and plastics consistency is between the two very poor, interface binding force is also very little, so will by have compared with strong absorptive timber with there is hydrophobic plastic tie be combined, be a very difficult thing, also can affect the mechanical property of wood plastic composite.And, owing to there being very strong interaction between lumber fibre, make its dispersion extreme difference in the plastic, dispersed comparatively difficulty be reached.Meanwhile, during forming process, wood meal is easily degraded variable color, and plastics also can thermal destruction, and unaccommodated compounding and complete processing can cause the degradation of wood plastic composite.
Traditional Wood plastic composite materials can see the technology disclosed in Chinese Patent Application No. 89107412.0, and it mainly mixes by a certain percentage with waste rubber, plastic waste and wood powder three, and obviously made product intensity is limited, is unfavorable for processing; The continuous progress with material molding technology is constantly widened along with wood plastic composite Application Areas, industry moulds difficulty in the course of processing to overcome wood now, produce the wood plastic composite with superperformance, particularly key how moulds interface compatibility to improve wood, to improve the performance such as tensile strength, bending strength, resistance to impact shock, rate of expansion of goods to the surface modification of wood powder and plastics, wood powder content and different auxiliary agent; Plastic composite material composition such as disclosed in Chinese patent 98122121.1, it hotmelt comprising the organism fillers such as wood powder, polyolefinic thermoplastics and be made up of peroxide type initiators and polar monomer, but there is certain limitation in the mobility of system, and rate of expansion is high, to increase mechanical property limited again, by this, how to improve xylon and plastic interface consistency in matrix material and become the problem that industry needs improvement badly gradually.
Summary of the invention
The object of this invention is to provide a kind of Novel wood-plastic composite material utilizing straw, this material environment friendly, durable, long service life, have the outward appearance of timber, higher than plastics hardness, rigidity is strong, antiacid alkali, Anti-moth-eating, good flame resistance, the features such as zero formaldehyde, pollution-free and reusable edible, can be widely used in building, furniture, packaging, gardens, transport field.
The object of the present invention is achieved like this:
PVC wood plastic composite of the present invention is for main raw material is as strongthener or filler using the xylons such as sawdust, wood chip, bamboo bits, straw, wheat straw, cotton stem, cavings, Pericarppium arachidis hypogaeae, bagasse, Exocarpium cocois (Cocos nucifera L), sub-hemp or vegetable fibre, after pre-treatment, make it and a kind of novel environment-friendly composite material of thermoplastic resin as PE, polypropylene, PVC, PS, ABS or other Material cladding.
A kind of Novel wood-plastic composite material utilizing straw, comprise: vegetable fibre acetic ester, chlorinatedpolyethylene, waste plastic and coupling agent, compatilizer, polyethylene wax, zinc stearate, activated Calcium carbonate and oxidation inhibitor, salicylic acid phenyl ester, its wood plastic composite is by following parts by weight: vegetable fibre acetic ester 65-75 part, waste plastic 15-25 part, coupling agent 2-4 part, chlorinatedpolyethylene 5-10 part, compatilizer 10-15 part, polyethylene wax 1-2 part, zinc stearate 1-2 part, activated Calcium carbonate 3-7 part, oxidation inhibitor 0.1-0.3 part, salicylic acid phenyl ester 0.1-0.3 part.
Wherein compatilizer is obtained by following preparation technology: to take ratio of weight and number be 10:5:2:1 ratio of weight and number is polypropylene, maleic anhydride, initiator peroxy dicarbonate double hexadecyl ester, the antioxidant 1010 of 10:5:2:1, first with dehydrated alcohol, initiator is dissolved, add together in polypropylene granules, be uniformly mixed.Add the maleic anhydride powder of porphyrize, oxidation inhibitor powder more respectively, be uniformly mixed.After placing 12h, by twin screw extruder melting mixing, extrude pelletizing and namely obtain compatilizer.
Described vegetable fibre acetic ester is vegetable fibre process gained, its preparation method is as follows: vegetable fibre is added in homogenizer, Glacial acetic acid and vitriol oil mixing solutions is added again in the ratio of 40:1 (volume ratio), control temperature is at 80-82 DEG C, high-speed stirring 10min, make the Mierocrystalline cellulose in vegetable fibre and Glacial acetic acid, under the katalysis of the vitriol oil, esterification occur, generate cellulosic acetic ester; Described vegetable fibre is with the composition of one or more components in sawdust, wood chip, bamboo bits, straw, wheat straw, cotton stem, cavings, Pericarppium arachidis hypogaeae, bagasse, Exocarpium cocois (Cocos nucifera L), sub-hemp.
Described coupling agent is superoxide, it can as reactive compatibilizers, high fusion index low-molecular-weight polyolefin plays " bridging agent " effect under superoxide existent condition, and in extrusion, use PP, PE is compatible in the blended middle formation grafting of thermomechanical or segmented copolymer; Can be such as benzoyl peroxide, dicumyl peroxide, in tertbutyl peroxide or peroxidized t-butyl perbenzoate one or more.
Described oxidation inhibitor is the organic compound suppressing or delay the thermooxidizing in atmosphere of superpolymer and other organic compound, can prevent polymer materials from causing rotten material because being oxidized, it can be phosphite, phosphoric acid salt or Hinered phenols, is preferably antioxidant 1010.
A kind ofly prepare the method utilizing the Novel wood-plastic composite material of stalk described above, it comprises the steps: to add waste plastic in mixer under low-speed running, vegetable fibre acetic ester, after adding, improve stirring velocity, coupling agent is added at 62 DEG C, chlorinatedpolyethylene, at 74 DEG C, compatilizer is added after insulation 5min, polyethylene wax, zinc stearate, at 85 DEG C, activated Calcium carbonate is added after stirring, oxidation inhibitor, salicylic acid phenyl ester, by the heating material in mixer to 110-120 DEG C, and be cooled to 35 DEG C, wood plastic composite of the present invention can be obtained.
The present invention also asks protection by the above-mentioned profiled sheeting utilizing the Novel wood-plastic composite material of stalk to prepare.Wood plastic composite is prepared into template and can adopts technique conventional in prior art, its preparation technology is that appearance is facile for those skilled in the art.
In wood plastic composite of the present invention, coupling agent (silane coupling agent, Aluminate, phthalate), also known as surface-modifying agent, be that a kind of can making produces very strong interface cohesion between plastics and wood surface, improve their consistency and a kind of additive of dispersiveness.The interface interaction between inorganics and organism can be improved, improve wood and mould interface cohesion.The viscosity that can also reduce molten synthetic resin in the process of processing moulded by coupling agent at wood, can reduce the water-absorbent of wood powder, improves intensity and processing characteristics, thus make goods have good outward appearance and improve mechanical property.Lubricant (Zinic stearas, polyethylene wax, or claim PE wax), the frictional force of compound and processor can be reduced, make processing units give play to best performance characteristic.Lubricant can at high temperature have good consistency with resin, can reduce intermolecular internal cohesive energy in resin, lowers intermolecular friction, promotes that the cunning of resin particle is gone, improves fluidity of molten.Thus, improve the visual appearance of extruded product, improve output, enhance productivity, reduce edge abrasion.Toughener, filler (calcium carbonate, Calcium hydrogen carbonate, activated Calcium carbonate), strengthen density, and improve intensity and the rigidity of wood plastic product, major function reduces costs and shrinking percentage.Activated Calcium carbonate, can improve the stability of plastics size, hardness and stiffness in wood is moulded, and improves thermotolerance and astigmatism that wood moulds processing characteristics and goods thereof.Antiaging agent (antioxidant, UV light absorber, photomask agent), prevents catabiosis, antioxidant effectively, can suppress or delay superpolymer oxidation, ultraviolet absorbers, can make polymkeric substance in matrix material that degraded or mechanical properties decrease do not occur.The light wave being harmful to superpolymer can absorb by photomask agent (carbon black, titanium dioxide, zinc oxide), then becomes heat energy to scatter out transform light energy or is fallen by light wave reflection.
Compared with prior art, the present invention has following technical superiority:
(1) environmental and durable, the long service life of wood plastic composite of the present invention, it has, and the outward appearance of timber, higher than plastics hardness, antiacid caustic corrosion performance and Anti-moth-eating performance are strong, good flame resistance, are applied to have safety and environmental protection, durable advantage in building, furniture, packaging, gardens, transport field.
(2) advantage that wood plastic composite of the present invention is the most outstanding is that the consistency between lumber fibre and plastics is high, the Novel wood-plastic composite material making to utilize straw and the profiled sheeting made in use elegant in appearance, work-ing life strengthens further.The present invention, by adding properties-correcting agent and compatilizer, makes the consistency between lumber fibre and plastics apparently higher than wood plastic composite of the prior art.
Embodiment
Content of the present invention is further illustrated below by way of specific embodiment, but described embodiment not limiting the present invention in any way.
a kind of Novel wood-plastic composite material utilizing straw of embodiment 1 the present invention and the profiled sheeting made thereof
A kind of Novel wood-plastic composite material utilizing straw, comprise: vegetable fibre acetic ester, chlorinatedpolyethylene, waste plastic and coupling agent, compatilizer, polyethylene wax, zinc stearate, activated Calcium carbonate and oxidation inhibitor, salicylic acid phenyl ester, its wood plastic composite is by following parts by weight: vegetable fibre acetic ester 65 parts, waste plastic 15 parts, coupling agent 2 parts, chlorinatedpolyethylene 5 parts, compatilizer 10 parts, polyethylene wax 1 part, zinc stearate 1 part, activated Calcium carbonate 3 parts, antioxidant 1010 0.1 part, salicylic acid phenyl ester 0.1 part.
Wherein compatilizer is obtained by following preparation technology: take polypropylene, maleic anhydride, initiator, oxidation inhibitor that ratio of weight and number is 10:5:2:1, first dissolved by initiator with dehydrated alcohol, add in polypropylene granules together, be uniformly mixed.Add the maleic anhydride powder of porphyrize, oxidation inhibitor powder more respectively, be uniformly mixed.After placing 12h, by twin screw extruder melting mixing, extrude pelletizing and namely obtain compatilizer.
Described vegetable fibre acetic ester is vegetable fibre process gained, its preparation method is as follows: vegetable fibre is added in homogenizer, Glacial acetic acid and vitriol oil mixing solutions is added again in the ratio of 40:1 (volume ratio), control temperature is at 80-82 DEG C, high-speed stirring 10min, make the Mierocrystalline cellulose in vegetable fibre and Glacial acetic acid, under the katalysis of the vitriol oil, esterification occur, generate cellulosic acetic ester; Described vegetable fibre is with the composition of one or more components in sawdust, wood chip, bamboo bits, straw, wheat straw, cotton stem, cavings, Pericarppium arachidis hypogaeae, bagasse, Exocarpium cocois (Cocos nucifera L), sub-hemp.
A kind of method preparing wood plastic composite described above, it comprises the steps: under low-speed running, add waste plastic and vegetable fibre acetic ester in mixer, after adding, improve stirring velocity, coupling agent and chlorinatedpolyethylene is added at 62 DEG C, at 74 DEG C, compatilizer, polyethylene wax, zinc stearate is added after insulation 5min, at 85 DEG C, activated Calcium carbonate, oxidation inhibitor, salicylic acid phenyl ester is added after stirring, by the heating material in mixer to 110-120 DEG C, and be cooled to 35 DEG C, wood plastic composite of the present invention can be obtained.
Contriver is also by the above-mentioned profiled sheeting utilizing the Novel wood-plastic composite material of stalk to prepare.Wood plastic composite is prepared into template and can adopts technique conventional in prior art, its preparation technology is that appearance is facile for those skilled in the art.
a kind of Novel wood-plastic composite material utilizing straw of embodiment 2 the present invention and the profiled sheeting made thereof
A kind of Novel wood-plastic composite material utilizing straw, comprise: vegetable fibre acetic ester, chlorinatedpolyethylene, waste plastic and coupling agent, compatilizer, polyethylene wax, zinc stearate, activated Calcium carbonate and oxidation inhibitor, salicylic acid phenyl ester, its wood plastic composite is by following parts by weight: vegetable fibre acetic ester 75 parts, waste plastic 25 parts, coupling agent 4 parts, chlorinatedpolyethylene 10 parts, compatilizer 15 parts, polyethylene wax 2 parts, zinc stearate 2 parts, activated Calcium carbonate 7 parts, antioxidant 1010 0.3 part, salicylic acid phenyl ester 0.3 part.
Wherein compatilizer is obtained by following preparation technology: take polypropylene, maleic anhydride, initiator, oxidation inhibitor that ratio of weight and number is 10:5:2:1, first dissolved by initiator with dehydrated alcohol, add in polypropylene granules together, be uniformly mixed.Add the maleic anhydride powder of porphyrize, oxidation inhibitor powder more respectively, be uniformly mixed.After placing 12h, by twin screw extruder melting mixing, extrude pelletizing and namely obtain compatilizer.
Described vegetable fibre acetic ester is vegetable fibre process gained, its preparation method is as follows: vegetable fibre is added in homogenizer, Glacial acetic acid and vitriol oil mixing solutions is added again in the ratio of 40:1 (volume ratio), control temperature is at 80-82 DEG C, high-speed stirring 10min, make the Mierocrystalline cellulose in vegetable fibre and Glacial acetic acid, under the katalysis of the vitriol oil, esterification occur, generate cellulosic acetic ester; Described vegetable fibre is with the composition of one or more components in sawdust, wood chip, bamboo bits, straw, wheat straw, cotton stem, cavings, Pericarppium arachidis hypogaeae, bagasse, Exocarpium cocois (Cocos nucifera L), sub-hemp.
A kind of method preparing wood plastic composite described above, it comprises the steps: under low-speed running, add waste plastic, vegetable fibre acetic ester in mixer, after adding, improve stirring velocity, coupling agent, chlorinatedpolyethylene is added at 62 DEG C, at 74 DEG C, compatilizer, polyethylene wax, zinc stearate is added after insulation 5min, at 85 DEG C, activated Calcium carbonate, oxidation inhibitor, salicylic acid phenyl ester is added after stirring, by the heating material in mixer to 110-120 DEG C, and be cooled to 35 DEG C, wood plastic composite of the present invention can be obtained.
Contriver is also by the above-mentioned profiled sheeting utilizing the Novel wood-plastic composite material of stalk to prepare.Wood plastic composite is prepared into template and can adopts technique conventional in prior art, its preparation technology is that appearance is facile for those skilled in the art.
a kind of Novel wood-plastic composite material utilizing straw of embodiment 3 the present invention and the profiled sheeting made thereof
A kind of Novel wood-plastic composite material utilizing straw, comprise: vegetable fibre acetic ester, chlorinatedpolyethylene, waste plastic and coupling agent, compatilizer, polyethylene wax, zinc stearate, activated Calcium carbonate and oxidation inhibitor, salicylic acid phenyl ester, its wood plastic composite is by following parts by weight: vegetable fibre acetic ester 70 parts, waste plastic 20 parts, coupling agent 3 parts, chlorinatedpolyethylene 8 parts, compatilizer 13 parts, polyethylene wax 1.5 parts, zinc stearate 1.5 parts, activated Calcium carbonate 5 parts, antioxidant 1010 0.2 part, salicylic acid phenyl ester 0.2 part.
Wherein compatilizer is obtained by following preparation technology: take polypropylene, maleic anhydride, initiator, oxidation inhibitor that ratio of weight and number is 10:5:2:1, first dissolved by initiator with dehydrated alcohol, add in polypropylene granules together, be uniformly mixed.Add the maleic anhydride powder of porphyrize, oxidation inhibitor powder more respectively, be uniformly mixed.After placing 12h, by twin screw extruder melting mixing, extrude pelletizing and namely obtain compatilizer.
Described vegetable fibre acetic ester is vegetable fibre process gained, its preparation method is as follows: vegetable fibre is added in homogenizer, Glacial acetic acid and vitriol oil mixing solutions is added again in the ratio of 40:1 (volume ratio), control temperature is at 80-82 DEG C, high-speed stirring 10min, make the Mierocrystalline cellulose in vegetable fibre and Glacial acetic acid, under the katalysis of the vitriol oil, esterification occur, generate cellulosic acetic ester; Described vegetable fibre is with the composition of one or more components in sawdust, wood chip, bamboo bits, straw, wheat straw, cotton stem, cavings, Pericarppium arachidis hypogaeae, bagasse, Exocarpium cocois (Cocos nucifera L), sub-hemp.
A kind of method preparing wood plastic composite described above, it comprises the steps: under low-speed running, add waste plastic, vegetable fibre acetic ester in mixer, after adding, improve stirring velocity, coupling agent, chlorinatedpolyethylene is added at 62 DEG C, at 74 DEG C, compatilizer, polyethylene wax, zinc stearate is added after insulation 5min, at 85 DEG C, activated Calcium carbonate, oxidation inhibitor, salicylic acid phenyl ester is added after stirring, by the heating material in mixer to 110-120 DEG C, and be cooled to 35 DEG C, wood plastic composite of the present invention can be obtained.
Contriver is also by the above-mentioned profiled sheeting utilizing the Novel wood-plastic composite material of stalk to prepare.Wood plastic composite is prepared into template and can adopts technique conventional in prior art, its preparation technology is that appearance is facile for those skilled in the art.
execute a kind of Novel wood-plastic composite material utilizing straw of example 4 the present invention and the profiled sheeting made thereof
A kind of Novel wood-plastic composite material utilizing straw, comprise: vegetable fibre acetic ester, chlorinatedpolyethylene, waste plastic and coupling agent, compatilizer, polyethylene wax, zinc stearate, activated Calcium carbonate and oxidation inhibitor, salicylic acid phenyl ester, its wood plastic composite is by following parts by weight: vegetable fibre acetic ester 65 parts, waste plastic 25 parts, coupling agent 2 parts, chlorinatedpolyethylene 10 parts, compatilizer 10 parts, polyethylene wax 2 parts, zinc stearate 1 part, activated Calcium carbonate 7 parts, antioxidant 1010 0.1 part, salicylic acid phenyl ester 0.3 part.
Wherein compatilizer is obtained by following preparation technology: take polypropylene, maleic anhydride, initiator, oxidation inhibitor that ratio of weight and number is 10:5:2:1, first dissolved by initiator with dehydrated alcohol, add in polypropylene granules together, be uniformly mixed.Add the maleic anhydride powder of porphyrize, oxidation inhibitor powder more respectively, be uniformly mixed.After placing 12h, by twin screw extruder melting mixing, extrude pelletizing and namely obtain compatilizer.
Described vegetable fibre acetic ester is vegetable fibre process gained, its preparation method is as follows: vegetable fibre is added in homogenizer, Glacial acetic acid and vitriol oil mixing solutions is added again in the ratio of 40:1 (volume ratio), control temperature is at 80-82 DEG C, high-speed stirring 10min, make the Mierocrystalline cellulose in vegetable fibre and Glacial acetic acid, under the katalysis of the vitriol oil, esterification occur, generate cellulosic acetic ester; Described vegetable fibre is with the composition of one or more components in sawdust, wood chip, bamboo bits, straw, wheat straw, cotton stem, cavings, Pericarppium arachidis hypogaeae, bagasse, Exocarpium cocois (Cocos nucifera L), sub-hemp.
A kind of method preparing wood plastic composite described above, it comprises the steps: under low-speed running, add waste plastic, vegetable fibre acetic ester in mixer, after adding, improve stirring velocity, coupling agent, chlorinatedpolyethylene is added at 62 DEG C, at 74 DEG C, compatilizer, polyethylene wax, zinc stearate is added after insulation 5min, at 85 DEG C, activated Calcium carbonate, oxidation inhibitor, salicylic acid phenyl ester is added after stirring, by the heating material in mixer to 110-120 DEG C, and be cooled to 35 DEG C, wood plastic composite of the present invention can be obtained.
Contriver is also by the above-mentioned profiled sheeting utilizing the Novel wood-plastic composite material of stalk to prepare.Wood plastic composite is prepared into template and can adopts technique conventional in prior art, its preparation technology is that appearance is facile for those skilled in the art.
a kind of Novel wood-plastic composite material utilizing straw of embodiment 5 the present invention and the profiled sheeting made thereof
A kind of Novel wood-plastic composite material utilizing straw, comprise: vegetable fibre acetic ester, chlorinatedpolyethylene, waste plastic and coupling agent, compatilizer, polyethylene wax, zinc stearate, activated Calcium carbonate and oxidation inhibitor, salicylic acid phenyl ester, its wood plastic composite is by following parts by weight: vegetable fibre acetic ester 75 parts, waste plastic 15 parts, coupling agent 4 parts, chlorinatedpolyethylene 5 parts, compatilizer 15 parts, polyethylene wax 1 part, zinc stearate 2 parts, activated Calcium carbonate 3 parts, antioxidant 1010 0.3 part, salicylic acid phenyl ester 0.1 part.
Wherein compatilizer is obtained by following preparation technology: take polypropylene, maleic anhydride, initiator, oxidation inhibitor that ratio of weight and number is 10:5:2:1, first dissolved by initiator with dehydrated alcohol, add in polypropylene granules together, be uniformly mixed.Add the maleic anhydride powder of porphyrize, oxidation inhibitor powder more respectively, be uniformly mixed.After placing 12h, by twin screw extruder melting mixing, extrude pelletizing and namely obtain compatilizer.
Described vegetable fibre acetic ester is vegetable fibre process gained, its preparation method is as follows: vegetable fibre is added in homogenizer, Glacial acetic acid and vitriol oil mixing solutions is added again in the ratio of 40:1 (volume ratio), control temperature is at 80-82 DEG C, high-speed stirring 10min, make the Mierocrystalline cellulose in vegetable fibre and Glacial acetic acid, under the katalysis of the vitriol oil, esterification occur, generate cellulosic acetic ester; Described vegetable fibre is with the composition of one or more components in sawdust, wood chip, bamboo bits, straw, wheat straw, cotton stem, cavings, Pericarppium arachidis hypogaeae, bagasse, Exocarpium cocois (Cocos nucifera L), sub-hemp.
A kind of method preparing wood plastic composite described above, it comprises the steps: under low-speed running, add waste plastic, vegetable fibre acetic ester in mixer, after adding, improve stirring velocity, coupling agent, chlorinatedpolyethylene is added at 62 DEG C, at 74 DEG C, compatilizer, polyethylene wax, zinc stearate is added after insulation 5min, at 85 DEG C, activated Calcium carbonate, oxidation inhibitor, salicylic acid phenyl ester is added after stirring, by the heating material in mixer to 110-120 DEG C, and be cooled to 35 DEG C, wood plastic composite of the present invention can be obtained.
Contriver is also by the above-mentioned profiled sheeting utilizing the Novel wood-plastic composite material of stalk to prepare.Wood plastic composite is prepared into template and can adopts technique conventional in prior art, its preparation technology is that appearance is facile for those skilled in the art.
the wood plastic composite that in Comparative Examples 1 patent application CN 103642147 A, embodiment 1 obtains
Utilize a Novel wood-plastic composite material for straw, it is made up of the raw material of following weight parts (kilogram): PVC resin 100, wood fibre 100, light calcium carbonate 10, Polyurethane Thermoplastic Elastomer 10, dicumyl peroxide 2, clorafin 4, lead sulfate tribasic 1, ricinolic acid barium 3, Cellmic C 121 2, adhesive aid 3;
Described adhesive aid is made up of the raw material of following weight parts: polyvinyl alcohol 20, hexamethoxymethyl melamine resin 3, polyamide wax micropowder 2, dialdehyde starch 4-5, Jojoba oil 2, anilinomethyl triethoxysilane 1; Above-mentioned polyvinyl alcohol is joined in reactor, be heated to 80 DEG C, add polyamide wax micropowder, insulation reaction 4 minutes, reducing temperature is 60 DEG C, adds hexamethoxymethyl melamine resin, anilinomethyl triethoxysilane, 700 revs/min of dispersed with stirring 15 minutes, be cooled to normal temperature, add each raw material of residue, namely abundant mixing obtains described adhesive aid.Utilize a preparation method for the Novel wood-plastic composite material of straw, comprise the following steps:
Above-mentioned wood fibre is sent in homogenizer, raised temperature is 120 DEG C, slowly dicumyl peroxide is added under 1200 revs/min of rotating speeds stirred, after interpolation, continue high-speed stirring 8 minutes, reducing temperature is 90 DEG C, add polyvinyl chloride resin, clorafin, light calcium carbonate, Polyurethane Thermoplastic Elastomer, after abundant stirring, at temperature is 115 DEG C, add Cellmic C 121, high-speed stirring is even, be cooled to normal temperature, add each raw material of residue, forcing machine is sent into after abundant mixing, extrusion moulding, cooling and shaping, obtain described wood plastic composite.
the wood plastic composite that Comparative Examples 2 prepares according to CN 101921491 A embodiment 1
Utilize a Novel wood-plastic composite material for straw, comprise following component: 100 parts, wood powder 325 order, waste or used plastics (HDPE) 50 parts, waste old (POE) 10 parts, high melting means thermoplastic resin (HDPE) 40 parts, 1.5 parts, tensio-active agent, lubricant (amide waxe) 2 parts, lubricant (MP wax) 2 parts, lubricant (calcium stearate) 0.3 part, linking agent (dicumyl peroxide) 0.5 part, 0.2 part, oxidation inhibitor, processing aid 0.1 part.
The working method adopted normally by wood powder after treatment first, eliminate most of moisture, be dried to water ratio and be less than 2%, add tensio-active agent, 80-150 DEG C of mix and blend 5-12 minute in high-speed mixer, add linking agent and high melting means thermoplastic resin again, finally add the recycled plastic crushed, rubber and corresponding lubricant, the additive such as oxidation inhibitor and processing aid, after mix and blend 5-10 minute, Preblend is sent into tablets press and carry out granulation, described tablets press is the Banbury mixer of parallel double-screw extruder or band Single screw extrusion device, its processing temperature is 150 ~ 195 DEG C, finally the particle produced is sent into forming machine and obtain correlated product, described forming machine is injection moulding machine, processing temperature is 140 ~ 220 DEG C.
The performance test of embodiment 7 wood plastic composite of the present invention
According to following testing method, the tensile strength of embodiment of the present invention 1-5 and Comparative Examples 1-2, flexural strength, shock strength, Rockwell hardness are tested.Wherein, tensile strength: by GB 1040-79 standard testing; Flexural strength: by GB 9341-88 standard testing; Shock strength: by GB 1451-83 standard testing; Rockwell hardness: by GB 9342-88 standard testing;
The performance test of table 1 wood plastic composite of the present invention
Compared with Comparative Examples 1, #P < 0.05, ##P < 0.01; Compared with Comparative Examples 2, * P < 0.05, * * P < 0.01
As can be seen from Table 1, wood plastic composite of the present invention is compared with Comparative Examples 2 with Comparative Examples 1, and density has remarkable rising, and this shows, vegetable fibre and the plastic interface consistency of wood plastic composite of the present invention are better.Wood plastic composite of the present invention is compared with Comparative Examples 2 with Comparative Examples 1, all significantly strengthens in tensile strength, flexural strength, shock strength and Rockwell hardness.Wherein the embodiment of the present invention 3 performance in hardness and tensile strength, flexural strength, shock strength, Rockwell hardness is better, is best mode for carrying out the invention.
Embodiment above describes principle of the present invention and embodiment and advantage; the present invention is not restricted to the described embodiments; without departing from the spirit and scope of the present invention, the present invention also can change and improve, and these changes all should in claimed scope with improvement.
Claims (3)
1. one kind utilizes the Novel wood-plastic composite material of straw, it is characterized in that, it is prepared by vegetable fibre acetic ester, chlorinatedpolyethylene, waste plastic and coupling agent, compatilizer, polyethylene wax, Zinic stearas, activated Calcium carbonate and oxidation inhibitor, salicylic acid phenyl ester, and the parts by weight of wherein said wood plastic composite preparation process Raw are:
Vegetable fibre acetic ester 65-75 part, waste plastic 15-25 part, coupling agent 2-4 part, chlorinatedpolyethylene 5-10 part, compatilizer 10-15 part, polyethylene wax 1-2 part, Zinic stearas 1-2 part, activated Calcium carbonate 3-7 part, oxidation inhibitor 0.1-0.3 part, salicylic acid phenyl ester 0.1-0.3 part;
Wherein, described compatilizer is obtained by following preparation technology: take polypropylene, maleic anhydride, initiator, oxidation inhibitor that ratio of weight and number is 10:5:2:1, first dissolved by initiator with dehydrated alcohol, add in polypropylene granules together, be uniformly mixed; Add the maleic anhydride powder of porphyrize, oxidation inhibitor powder more respectively, be uniformly mixed; After placing 12h, by twin screw extruder melting mixing, extrude pelletizing and namely obtain compatilizer;
The preparation method of described vegetable fibre acetic ester comprises the steps: vegetable fibre to be added in homogenizer, Glacial acetic acid and vitriol oil mixing solutions is added again in the ratio of 40:1 volume ratio, control temperature is at 80-82 DEG C, high-speed stirring 10min, make the Mierocrystalline cellulose in vegetable fibre and Glacial acetic acid, under the katalysis of the vitriol oil, esterification occur, generate cellulosic acetic ester, vegetable fibre acetic ester can be obtained.
2. prepare the method for wood plastic composite described in claim 1 for one kind, it comprises the steps: under low-speed running, add waste plastic, vegetable fibre acetic ester in mixer, after adding, improve stirring velocity, coupling agent, chlorinatedpolyethylene is added at 62 DEG C, at 74 DEG C, compatilizer, polyethylene wax, Zinic stearas is added after insulation 5min, at 85 DEG C, activated Calcium carbonate, oxidation inhibitor, salicylic acid phenyl ester is added after stirring, by the heating material in mixer to 110-120 DEG C, and be cooled to 35 DEG C, wood plastic composite of the present invention can be obtained.
3. the profiled sheeting prepared by wood plastic composite described in claim 1.
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| CN104559276A (en) * | 2014-12-17 | 2015-04-29 | 王旭 | Green decorative board containing waste plastic and straw |
| CN104817852A (en) * | 2015-05-22 | 2015-08-05 | 罗满清 | High-strength corrosion-resistant wood-plastic composite material for plates and preparation method thereof |
| CN105038114B (en) * | 2015-08-04 | 2018-07-27 | 苏州博云塑业有限公司 | One kind passing through fibre-reinforced composite material |
| CN106497118B (en) * | 2016-11-17 | 2019-05-14 | 过冬 | A kind of wood plastic composite, preparation method and the profiled sheeting made of the composite material |
| CN107141595A (en) * | 2017-06-20 | 2017-09-08 | 合肥市淑芹美装饰工程有限公司 | A kind of High-strength wood plastic floor and preparation method thereof |
| CN108003553B (en) * | 2017-12-07 | 2019-11-19 | 浙江奕科新材料股份有限公司 | A kind of processing method of high-strength impact-resistant type wood-plastic composite panel |
| CN108276614A (en) * | 2018-03-03 | 2018-07-13 | 黄旭东 | A kind of preparation method of modified fibre base Wood plastic composite |
| CN111019229A (en) * | 2019-12-06 | 2020-04-17 | 兴义市亿洪市场管理有限公司 | Stone wood plastic material prepared from regenerated raw materials and preparation method |
| CN111117106A (en) * | 2019-12-24 | 2020-05-08 | 中山圣洛迪新材料有限公司 | Wood-plastic composite floor and preparation method thereof |
| CN112876767A (en) * | 2021-01-15 | 2021-06-01 | 安徽昊森新材料科技有限公司 | Flowerpot made of wood-plastic material and preparation method thereof |
| CN114957964B (en) * | 2022-06-17 | 2023-03-31 | 宋伟杰 | Degradable automobile foot mat material and preparation method thereof |
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