CN102838880B - Method for producing an environmentally-friendly type wood-plastic composite material by utilizing renewable resources - Google Patents
Method for producing an environmentally-friendly type wood-plastic composite material by utilizing renewable resources Download PDFInfo
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- CN102838880B CN102838880B CN201210383696.1A CN201210383696A CN102838880B CN 102838880 B CN102838880 B CN 102838880B CN 201210383696 A CN201210383696 A CN 201210383696A CN 102838880 B CN102838880 B CN 102838880B
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Abstract
The invention discloses a method for producing an environmentally-friendly type wood-plastic composite material by utilizing renewable resources, and belongs to the technical field of preparation of wood-plastic materials. The method comprises the following steps of: preparation of degreased soybean meal protein colloid, plasticization of degreased protein colloid, crushing of crop straws, modification of straw powder, preparation of wood-plastic dry powder, granulation of wood-plastic dry powder, and preparation of wood-plastic composite materials and the like. The method has the advantages that by modification to the wood fiber of the straw powder, the compatibility with plastic is increased, and the bonding strength between the wood fiber and the plastic is also improved; and by adding the plasticized and degreased soybean powder, the plastic using amount is reduced from about 50% to about 30%, so that the production cost is reduced to be 20-30%. The method can be popularized and applied in the production enterprise of the wood-plastic materials.
Description
Technical field
The present invention relates to the preparing technical field of Wood-plastic material, relate in particular to a kind of method of utilizing the renewable resources such as defatted soyflour and agricultural crop straw production environment-friendly type wood plastic composite.
Background technology
Defatted soyflour is taking soybean as raw material, processes through the operation such as degreasing, pulverizing, and protein content, more than 50%, has good water suction oil absorbency; Stalk is the general name of ripe farm crop cauline leaf part, is often referred to the remainder after results seed such as wheat, corn, soybean, rape, and crude fiber content is high; Defatted soyflour and agricultural crop straw are all to have multiduty renewable biological source.
Wood plastic composite is a kind of type material of manufacturing taking wood fibre and plastics as main raw material, has good use properties, and the research to wood plastic composite at present and application increase gradually.Notification number is that the patent of invention of CN1513918 discloses a kind of wood plastic composite and its preparation method and application, this material is taking recycled plastic, wood fibre and resin compatible agent etc. as raw material, be prepared from by melt-mixing method general in plastic working, in its formula, the ratio of weight and number of plastics and wood fibre is 100:100-250.The patent of invention (CN101186754) " a kind of method of utilizing crop straw to produce macromolecule composite wood-plastic material " of Fu Ping Chen is that the crop straw powder such as cotton stalk, rice husk, wheat straw are carried out to dip treating dry, then be that other main raw material carries out high-speed mixing and cooling mixing obtains dry mash by itself and plastics, dry mash is carried out to extruding pelletization, by the material extrusioning shaping after granulation, make macromolecule composite wood-plastic material again.In this invention, straw powder raw material is through dip treating, strengthens wood and the avidity of moulding, and can enhance product performance, but in its formula, the weight proportion of plastics and straw powder is 100:50-70.Therefore, it is higher that current published patent of invention exists quantity of plastics ratio, causes the problems such as wood plastic composite production cost is higher anxious to be resolved.
Summary of the invention
The present invention seeks to, the quantity of plastics ratio of moulding preparation method's existence for existing wood is higher, cause the higher defect of production cost, provide a kind of quantity of plastics to reduce 30-60%, production cost reduces 20-30%, the method for what wood plastic composite performance and plastics were suitable utilize renewable resources production environment-friendly type wood plastic composite.
The object of the invention is achieved by the following technical programs.
A method of utilizing renewable resources production environment-friendly type wood plastic composite, the method is carried out according to the following steps:
1) preparation of defatted soyflour protein-colloid: by defatted soyflour, water, sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer 150-200 by weight: 800-850: 1-2: 1-2: 5-10: 0.1-0.2 ratio is got the raw materials ready; First water is sent in the container with whipping appts, under agitation again sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer are added, stir after 3-5 minute, more slowly add defatted soyflour and continue stirring 60-90 minute, become the apolipoprotein colloid of homogeneous;
2) plastics processing of apolipoprotein colloid: by apolipoprotein colloid and softening agent by weight 100: 3-5 ratio is got the raw materials ready; First apolipoprotein colloid is sent in the container with whipping appts, under agitation again softening agent is slowly added, keep stirring 30-60 minute, obtain the modified protein after plastics processing, for subsequent use;
3) pulverization process of agricultural crop straw: it is 60-80 object straw powder that crops stalk crushing is become to granularity;
4) modification of straw powder: by straw powder, calcium carbonate, coupling agent, stearic acid and processing aid by weight 100: 5-10: 0.5-5: 0.1-5: 0.1-5 ratio is got the raw materials ready; First straw powder and calcium carbonate are sent in high speed mixer, be stirred to temperature and reach between 80-90 DEG C, then coupling agent, stearic acid and processing aid are added, discharging when continuing to be stirred to temperature and reaching 115 DEG C, obtains modified straw powder;
5) wood is moulded the preparation of dry mash: by the modified protein after modified straw powder, plastics processing, plastics, softening agent and processing aid 80-120 by weight: 100: 60-120: 10-30: 10-20 ratio is got the raw materials ready; First the modified protein of modified straw powder, plastics processing and plastics are sent in high speed mixer, be stirred to temperature and reach between 80-90 DEG C, then softening agent and processing aid are added, discharging when continuing to be stirred to temperature and reaching 115 DEG C, obtains wood and moulds dry mash;
6) wood is moulded dry mash granulation: wood is moulded to dry mash and send in tablets press, carry out extruding pelletization dry, obtain wooden molding powder machine particle;
7) preparation of wood plastic composite: wooden molding powder machine particle is sent in extruding machine or injection moulding machine and shaped, make wood plastic composite.
Described defoamer is choosing any one kind of them in Zerol, Sorbitol Powder monostearate or tributyl phosphate.
Described softening agent is choosing any one kind of them in phthalic ester, Vanay, epoxy soybean oil or methane amide.
Described agricultural crop straw is choosing any one kind of them or two or more mixtures in soybean bar, cotton stalk, straw or waste of flax.
Described plastics are choosing any one kind of them in polyvinyl chloride, polyethylene, polypropylene or acrylonitrile-butadiene-styrene copolymer.
Described processing aid is choosing any one kind of them or two or more mixtures in paraffin, polyethylene wax, calcium stearate, calcium zinc stabilizer, ACR-401, chlorinatedpolyethylene CPE-135A, compatilizer or lubricant.
Beneficial effect of the present invention:
One, the present invention is by step 1) to 5) preparation and wood fibre in straw powder is carried out, after modification, both having increased the consistency between wood fibre and plastics, improved again both bonding strengths;
Two, the present invention is by adding after the defatted soyflour of plastics processing and the straw powder material of modification, quantity of plastics in wood plastic composite can being produced is reduced to 30% left and right from 50% left and right of prior art, thereby makes the production cost of this material reduce 20-30%;
Three, made Wood-plastic material is abundant durable, and product performance and plastics are suitable, and the field that is widely used, and is a kind of desirable plastics equivalent material.
Embodiment
By following examples, the present invention is described in further detail, but content of the present invention is not limited to this.
Explanation to related equipment:
Tablets press: JSH-45, Nanjing Kang Fa rubber and plastics machine Manufacturing Co., Ltd;
Extruding machine: JH25, Yixing City Yun Hu environmental protection machinery company limited;
Injection moulding machine: ZWK-760, Changzhou Zhen Long Machinery Co., Ltd.;
Defatted soyflour: be the crushed material of grouts after soybean extract oil, fineness is 60-80 order.
Embodiment 1:(utilizes the method 1 of renewable resources production environment-friendly type wood plastic composite)
1) preparation of defatted soyflour protein-colloid: by 150 grams by weight of defatted soyflour, water, sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer Zerols: 850 grams: 1 gram: 1 gram: 5 grams: 0.1 gram of ratio is got the raw materials ready; First water is sent in the container with whipping appts, under agitation again sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer Zerol are added, stir 3-5 minute, slowly add again defatted soyflour and continue and stir 60-90 minute, become the apolipoprotein colloid of homogeneous;
2) plastics processing of apolipoprotein colloid: by 1000 grams by weight of apolipoprotein colloid and softening agent methane amides: 30 grams of ratios are got the raw materials ready; First apolipoprotein colloid is sent in the container with whipping appts, under agitation again softening agent methane amide is slowly added, keep stirring 30-60 minute, obtain the modified protein after plastics processing;
3) pulverization process of agricultural crop straw: it is 60-80 object soybean stalk powder that soybean stalk is ground into granularity;
4) modification of soybean stalk powder: by 1000 grams by weight, soybean stalk powder, calcium carbonate, coupling agent, stearic acid and paraffin: 50 grams: 5 grams: 3 grams: 2 grams of ratios are got the raw materials ready; First soybean stalk powder and calcium carbonate are sent in homogenizer, be stirred to temperature and reach between 80-90 DEG C, then coupling agent, stearic acid and paraffin are added, continue to be stirred to temperature and reach 115 DEG C of dischargings, obtain modified soybean stalk powder;
5) wood is moulded the preparation of dry mash: by modified soybean stalk powder, step 2) 1000 grams by weight of modified protein, plastics polypropylene, softening agent epoxy soybean oil and processing aid paraffin, compatilizer, the lubricants of plastics processing: 1000 grams: 750 grams: 100 grams: 20 grams: 60 grams: 30 grams of ratios are got the raw materials ready; First by modified soybean stalk powder, step 2) modified protein and plastics polypropylene send in homogenizer, being stirred to temperature reaches between 80-90 DEG C, again softening agent epoxy soybean oil and processing aid paraffin, compatilizer, lubricant are added, continue to be stirred to temperature and reach 115 DEG C of dischargings, obtain wood and mould dry mash;
6) wood is moulded dry mash granulation: wood is moulded to dry mash and send in tablets press, carry out extruding pelletization dry, obtain wooden molding powder machine particle; Wherein, the extruder temperature of tablets press is 140-155 DEG C, and head temperature is 175-185 DEG C;
7) preparation of wood plastic composite: wooden molding powder machine particle is sent into extruding machine and shape, make wood plastic composite; Wherein, when extrusioning shaping, the extruder temperature of extruding machine is 125-145 DEG C, and head temperature is 180-190 DEG C; The range of application of this wood plastic composite is quite extensive, can be used to make the articles for use such as sheet material or clothes hanger, flowerpot, pen container.
Embodiment 2:(utilizes the method 2 of renewable resources production environment-friendly type wood plastic composite)
In this example, 1) preparation of defatted soyflour protein-colloid: by 200 grams by weight of defatted soyflour, water, sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer Sorbitol Powder monostearates: 800 grams: 2 grams: 2 grams: 10 grams: 0.2 gram of ratio is got the raw materials ready;
2) plastics processing of protein-colloid: by 1000 grams by weight of protein-colloid and plasticizer phthalic acid esters: 40 grams of ratios are got the raw materials ready;
3) pulverization process of cotton stalk: it is the cotton stalk powder of 60-80 object that cotton stalk is ground into granularity;
4) modification of cotton stalk powder: by 1000 grams by weight of cotton stalk powder, calcium carbonate, coupling agent, stearic acid and polyethylene waxs: 75 grams: 30 grams: 30 grams: 25 grams of ratios are got the raw materials ready;
5) wood is moulded the preparation of dry mash: by cotton modification stalk powder, step 2) 1200 grams by weight of modified protein, plastic polyvinyl chloride, softening agent Vanay and processing aid calcium stearate, calcium zinc stabilizer, ACR-401, the chlorinatedpolyethylene CPE-135A of plastics processing: 1000 grams: 1200 grams: 300 grams: 15 grams: 70 grams: 40 grams: 55 grams of ratios are got the raw materials ready;
6) wood is moulded dry mash granulation: wood is moulded to dry mash and send in tablets press, carry out extruding pelletization dry; Wherein, the extruder temperature of tablets press is 140-155 DEG C, and head temperature is 175-185 DEG C;
7) preparation of wood plastic composite: wooden molding powder machine particle is sent into injection moulding machine and shape, make wood plastic composite; Wherein, when injection molding shaping, the extruder temperature of injection moulding machine is 165-175 DEG C, and head temperature is 180-190 DEG C;
All the other process are same as embodiment 1.
Embodiment 3:(utilizes the method 3 of renewable resources production environment-friendly type wood plastic composite)
In this example, 1) preparation of defatted soyflour protein-colloid: by 175 grams by weight of defatted soyflour, water, sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer tributyl phosphates: 825 grams: 1.5 grams: 1.5 grams: 7.5 grams: 0.15 gram of ratio is got the raw materials ready;
2) plastics processing of protein-colloid: by 1000 grams by weight of defatted soyflour protein-colloid and softening agent epoxy soybean oils: 50 grams of ratios are got the raw materials ready;
3) pulverization process of soybean bar, waste of flax: by soybean bar, waste of flax by weight 1: 1 ratio to be ground into granularity be 60-80 object soybean bar waste of flax powder mix;
4) modification of soybean bar waste of flax powder mix: by 1000 grams by weight, soybean bar waste of flax powder mix, calcium carbonate, coupling agent, stearic acid and paraffin: 100 grams: 5 grams: 15 grams: 25 grams of ratios are got the raw materials ready;
5) wood is moulded the preparation of dry mash: by modified soybean bar waste of flax mixed powder, step 2) 800 grams by weight of modified protein, plastic polyethylene, softening agent methane amide and processing aid paraffin, compatilizer, the lubricants of plastics processing: 1000 grams: 1000 grams: 150 grams: 20 grams: 70 grams: 30 grams of ratios are got the raw materials ready;
6) wood is moulded dry mash granulation: wood is moulded to dry mash and send in tablets press, carry out extruding pelletization dry; Wherein, the extruder temperature of tablets press is 140-155 DEG C, and head temperature is 175-185 DEG C;
7) preparation of wood plastic composite: wooden molding powder machine particle is sent into extruding machine and shape, make wood plastic composite; Wherein, when extrusioning shaping, the extruder temperature of extruding machine is 125-145 DEG C, and head temperature is 180-190 DEG C; All the other process are same as embodiment 1.
Claims (6)
1. utilize a method for renewable resources production environment-friendly type wood plastic composite, it is characterized in that carrying out according to the following steps:
1) preparation of defatted soyflour protein-colloid: by defatted soyflour, water, sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer 150-200 by weight: 800-850: 1-2: 1-2: 5-10: 0.1-0.2 ratio is got the raw materials ready; First water is sent in the container with whipping appts, under agitation again sodium bisulfite, sodium-chlor, sodium lauryl sulphate and defoamer are added, stir after 3-5 minute, more slowly add defatted soyflour and continue stirring 60-90 minute, become the apolipoprotein colloid of homogeneous;
2) plastics processing of apolipoprotein colloid: by apolipoprotein colloid and softening agent by weight 100: 3-5 ratio is got the raw materials ready; First apolipoprotein colloid is sent in the container with whipping appts, under agitation again softening agent is slowly added, keep stirring 30-60 minute, obtain the modified protein after plastics processing, for subsequent use;
3) pulverization process of agricultural crop straw: it is 60-80 object straw powder that crops stalk crushing is become to granularity;
4) modification of straw powder: by straw powder, calcium carbonate, coupling agent, stearic acid and processing aid by weight 100: 5-10: 0.5-5: 0.1-5: 0.1-5 ratio is got the raw materials ready; First straw powder and calcium carbonate are sent in high speed mixer, be stirred to temperature and reach between 80-90 DEG C, then coupling agent, stearic acid and processing aid are added, discharging when continuing to be stirred to temperature and reaching 115 DEG C, obtains modified straw powder;
5) wood is moulded the preparation of dry mash: by the modified protein after modified straw powder, plastics processing, plastics, softening agent and processing aid 80-120 by weight: 100: 60-120: 10-30: 10-20 ratio is got the raw materials ready; First the modified protein of modified straw powder, plastics processing and plastics are sent in high speed mixer, be stirred to temperature and reach between 80-90 DEG C, then softening agent and processing aid are added, discharging when continuing to be stirred to temperature and reaching 115 DEG C, obtains wood and moulds dry mash;
6) wood is moulded dry mash granulation: wood is moulded to dry mash and send in tablets press, carry out extruding pelletization dry, obtain wooden molding powder machine particle;
7) preparation of wood plastic composite: wooden molding powder machine particle is sent in extruding machine or injection moulding machine and shaped, make wood plastic composite.
2. by method claimed in claim 1, it is characterized in that described defoamer is choosing any one kind of them in Zerol, Sorbitol Powder monostearate or tributyl phosphate.
3. by method claimed in claim 1, it is characterized in that described softening agent is choosing any one kind of them in phthalic ester, Vanay, epoxy soybean oil or methane amide.
4. by method claimed in claim 1, it is characterized in that described agricultural crop straw is choosing any one kind of them or two or more mixtures in soybean bar, cotton stalk, straw or waste of flax.
5. by method claimed in claim 1, it is characterized in that described plastics are choosing any one kind of them in polyvinyl chloride, polyethylene, polypropylene or acrylonitrile-butadiene-styrene copolymer.
6. by method claimed in claim 1, it is characterized in that described processing aid is choosing any one kind of them or two or more mixtures in paraffin, polyethylene wax, calcium stearate, calcium zinc stabilizer, ACR-401, chlorinatedpolyethylene CPE-135A, compatilizer or lubricant.
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| CN103788542A (en) * | 2014-01-20 | 2014-05-14 | 桐城市诚信木塑科技材料有限公司 | Environment-friendly wood plastic floor and manufacturing method thereof |
| CN105001577A (en) * | 2015-07-21 | 2015-10-28 | 江苏经纬技术创新咨询有限公司 | Thermal insulation and fire retardation material and preparation method thereof |
| CN107964252A (en) * | 2017-11-21 | 2018-04-27 | 安徽北马科技有限公司 | A kind of preparation method of environment-friendly type wood plastic composite |
| CN109878240B (en) * | 2019-02-25 | 2020-12-29 | 哈尔滨联邦智能卡技术开发有限责任公司 | Metal-like business card with biodegradation function and preparation method thereof |
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| CN101186754A (en) * | 2006-11-16 | 2008-05-28 | 滨州华晨新型建材有限公司 | Method for producing macromolecule composite wood-plastic material by utilizing crop straw |
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| US7186102B2 (en) * | 2001-04-26 | 2007-03-06 | Strandex Corporation | Apparatus and method for low-density cellular wood plastic composites |
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| CN101186754A (en) * | 2006-11-16 | 2008-05-28 | 滨州华晨新型建材有限公司 | Method for producing macromolecule composite wood-plastic material by utilizing crop straw |
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