CN100503699C - Preparing method of composite material made of waste material - Google Patents

Preparing method of composite material made of waste material Download PDF

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Publication number
CN100503699C
CN100503699C CNB2006100487681A CN200610048768A CN100503699C CN 100503699 C CN100503699 C CN 100503699C CN B2006100487681 A CNB2006100487681 A CN B2006100487681A CN 200610048768 A CN200610048768 A CN 200610048768A CN 100503699 C CN100503699 C CN 100503699C
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China
Prior art keywords
waste
bagasse
matrix
film
composite
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Expired - Fee Related
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CNB2006100487681A
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Chinese (zh)
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CN1944501A (en
Inventor
孙可伟
李如燕
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HUAWEI WASTE MATERIAL RESOURCE CO Ltd YUNNAN
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HUAWEI WASTE MATERIAL RESOURCE CO Ltd YUNNAN
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Priority to CNB2006100487681A priority Critical patent/CN100503699C/en
Publication of CN1944501A publication Critical patent/CN1944501A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/141Feedstock
    • Y02P20/143Feedstock the feedstock being recycled material, e.g. plastics
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Abstract

The composite material prepared with wastes accounting for 98 % its raw material has the raw material comprising waste plastic film 51-60 %, bagasse 38-48 %, silane or titanate 0-2 %, and azo bisformamide 0-1 %. The preparation process includes the following steps: 1. deoilnig, decontaminating and crushing waste plastic film to form grains with plicate surface; 2. crushing bagasse; 3. dewatering and stoving bagasse; 4. soaking stoved bagasse in 4 % concentration water solution of benzoic acid, dewatering and stoving; 5. mixing waste plastic grains with bagasse and supplementary material; 6. extruding the mixture in an extruder; and 7. molding. The composite material of the present invention has the advantages of both timber and plastic.

Description

A kind of preparation method who utilizes the matrix material that waste makes
Technical field
The present invention relates to a kind of matrix material and preparation technology thereof, particularly a kind of preparation method who utilizes the matrix material that waste makes.
Background technology
Waste polyethylene refuse bag and agricultural plastic film become the important factor of environmental pollution because of being difficult to degrade.Bagasse is the waste that sucrose is produced, and quantity is extremely abundant in the sucrose grown place, but utilizes level also lower, is mainly used in pulping and paper-making, preparation shaving board, artificial board, preparation cellulolytic activity charcoal at present or directly acts as a fuel.Matrix material is to be composited by certain technology by two or more the material with different performance, is used for substituting materials such as timber, plastics, rubber, pottery.Chinese patent literature discloses some correlation techniques, " composite wood-plastics material and manufacturing process thereof " (91103037) pulverize rubble, slag, and filler is made in pulverizing such as cotton wool vegetation, waste rubber and waste plastic is the tackiness agent batching, adds part industrial chemicals and resin again and makes finished product." production method of Wood-plastic material and the wood-plastic products that uses this method to make " (200410073844) are that wood working is become wood powder, render in the mixing roll, add activator, and UPVC or PVC and various auxiliary agent, mixing once more, granulation, surface treatment is carried out in moulding at last." a kind of graftomer and contain the Wood-plastic material and the preparation method of this graftomer " (02125652), polyolefin resin grafting under the condition that organosilane exists is obtained a kind of graftomer, as all or part of base-material, under the condition that catalyzer exists, make Wood-plastic material with this kind graftomer with the moulding of wood meal blend extrusion plasticizing." manufacture method of a kind of bagasse and polystyrene blend regenerated fiber goods " (200410052248) are with bagasse, polystyrene pellet and stone flour uniform mixing in proportion, again with the hot-forming regenerated fiber goods that obtain of compound." Wood-plastic material " (99111051) are made up of waste polyethylene material, lignocellulose, industrial residue red soil etc., and, moulding compound through batching, kneading, High Temperature High Pressure, fracture form." a kind of wood plastic composite and preparation method thereof " (200410077610) are with the pre-mixing in high-speed mixer of thermoplastics, vegetable fibre, polyolefine and multi-monomer solid-phase graft copolymer, extrude, cooling, pelletizing promptly get a kind of wood plastic composite." Wood-plastic mix material and preparation method thereof " (02121222), its component is: wood powder 50-65%, reinforcer 8-12%, all the other are plastics; Its making method comprises selection, pulverizing, proportioning, stirring heating, extrusion molding, cooling curing, cutting finished product etc." its purposes of a kind of modified composite material of woods and plastics and manufacture method thereof " (02104432), be to be main raw material with wood powder and plastics or waste or used plastics, be equipped with a little auxiliary, connect the skill agent with special use wood powder and frosting are carried out the graft modification processing, adopt continuous expressing technique, utilize the mould of various section forms, extrude and produce various high performance composite.
Summary of the invention
The objective of the invention is to propose a kind of technical scheme of utilizing matrix material that waste makes and preparation method thereof, this scheme makes full use of the waste polyethylene bag film and bagasse is made broad-spectrum matrix material, and technology is simple, through engineering approaches degree height, low, the waste utilization rate height of cost of manufacture.
Technical scheme of the present invention is, a kind of matrix material that utilizes waste to make, waste is 98% in the raw material, the each component weight percent is a thermoplasticity waste 51%~60%, the solid slag 38%~48% that contains vegetable fibre, coupling agent 0-2%, whipping agent 0-1%, each raw material weight is absolutely than sum.
Coupling agent wherein is silane or metatitanic acid fat, and whipping agent is a Cellmic C 121.The thermoplasticity waste is waste polyethylene bag film and agricultural film, and the solid slag that contains vegetable fibre is a bagasse.The concrete technology of its preparation method is: (1) carries out oil removing and abatement processes with waste polyethylene bag and agricultural plastic film, then through the fragmentation of plastics film breaking machine, is made for particle diameter has fold less than 5mm, surface particle; (2) bagasse is pulverized, 200 orders sieve; (3) bagasse after the pulverizing is through 100 ℃, the oven dry of dewatering; (4) surface treatment, with the bagasse of 4% phenylformic acid aqueous solution soaking oven dry at least 2 hours, dehydration again, 100 ℃ of oven dry; (5) with (1) with handle after bagasse put into the mixer mechanically mixing, add coupling agent and whipping agent simultaneously, mix and be compound; (6) compound is put into forcing machine, extrude at 150~200 ℃; (7) extruded stock is put into metal die, extrusion forming, pressure is 18~22MPa, the dwell time is 5~10 minutes, cooling die, die sinking is taken out wood and is moulded the composite material of waste goods.
Agricultural plastic film and plastic waste bag mutual friction mutually, tearing, shearing, fragmentation and temperature distortion and become particle diameter has fold less than 5mm, surface particle in film breaking machine.
Matrix material is to be composited by certain technology by two or more the material with different performance, generally includes two portions: as the matrix and the disperse phase packing material of external phase.The present invention is used as body material with useless agricultural film, plastic waste bag and various plastics, and bagasse, wood chip are as packing material, strongthener.This matrix material had both kept the original salient features of each component, had unexistent new features in the stock blend again, can maximize favourable factors and minimize unfavourable ones on material property.Raw material of the present invention comprises three classes: 1, bagasse is the packing material of matrix material; 2, agricultural plastic film and plastic waste bag are the matrixes of matrix material; 3, additive.The adding coupling agent can further strengthen the bonding force between bagasse and the plastic waste, increases the mechanical property of matrix material, hot flowability etc., can also play surfactivity, group huge legendary turtle cooperation usefulness.Add whipping agent, can reduce the density of material.Be solid waste more than 98% owing to account for weight in the material of the present invention, before processing, have various organic or inorganic impurity on its surface, combining between body material and the packing material will be had a strong impact on, and then influence performance of composites, so must carry out special processing to raw material, as agricultural plastic film and plastic waste bag must be in film breaking machine mutual friction mutually, tearing, shearing, fragmentation and temperature distortion and become particle diameter and the particle of fold is arranged less than 5mm, surface, will help combining between body material and the packing material like this.Adopt the reason of bagasse as main raw of the present invention: the one, output is big, wide material sources; The 2nd, cost of material is cheap; The 3rd, concentrate, nearly all in sugar refinery raw material; The 4th, material composition is single, and is quality controllable, do not need sorting process; The 5th, have society, economic benefit, not only can slow down the pollution of environment but also can improve the utility value of bagasse.Bagasse has certain-length, fibre strength height after treatment, proportion is little, breaking strain is little, can be used as strongthener.Waste polyethylene bag and agricultural plastic film quantity are very big, and it is higher for the cost recovery of other plastics to be used for reclaiming.The present invention utilizes advantages such as strong, the easy machine-shaping of plastic reclaimed ability, utilizing means such as Modern Manufacturing Technology, composite forming technology, is to have wood extensive use, excellent property to mould composite material of waste with waste or used plastics blending and modifying, fiber reinforcement, composite molding.The present invention utilizes cheap bagasse filler and waste plastic bag, plastic sheeting for farm use to mould composite material of waste for main raw material prepares wood, can improve the level of utilizing of bagasse greatly, reduce waste plastic bag the like waste resource and deal with the harm that causes improperly, the environmental renovation engineering had fairly obvious promoter action, simultaneously can also reduce material cost, save energy.The present invention combines the advantage of non-wood fiber and plastics, has embodied resource circulation utilization simultaneously, is a kind of Green Product.The present invention has that the characteristic of timber can be sawed, plane, perforating etc., and it is strong also to have plastic plasticity toughness, and performances such as insulation, waterproof, humidity also have bending resistance, do not shrink, indeformable characteristics.Materials such as timber, plastics, rubber, pottery be can replace, various pallets, tr, container bottom board, floor and indoor and outdoor finishing material etc. are suitable for making especially.Technology of the present invention is simple, easy handling, through engineering approaches degree height, low, the waste utilization rate height of cost of manufacture.
Embodiment
One, get the raw materials ready, according to the form below is got the raw materials ready, and each the raw material sum among each embodiment is absolutely.
The thermoplasticity waste Bagasse Silane coupling agent Azodicarbonamide foaming agent
Embodiment 1 Waste plastic bag 60% 38% 2% 0
Embodiment 2 Agricultural plastic film 51% 47.5% 1.5% 0.5%
Embodiment 3 Plastic sheeting for farm use 27%+ waste plastic bag 23% 48% 1% 1%
Embodiment 4 Plastic sheeting for farm use 30%+ waste plastic bag 28% 41% 0% 1%
Embodiment 5 Plastic sheeting for farm use 20%+ waste plastic bag 33% 45% 1.2% 0.8%
Wherein coupling agent also can adopt metatitanic acid fat.
Two, preparation method
1, waste polyethylene bag and agricultural plastic film or other plastic refuse are carried out oil removing and abatement processes, then through the fragmentation of plastics film breaking machine, control raw material phase mutual friction, tearing, shearing, fragmentation and temperature distortion and become particle diameter less than 5mm in film breaking machine, there is the particle of fold on the surface.
2, bagasse is pulverized, 200 orders that sieve, extracting screen underflow,
3, the bagasse after the pulverizing is through 100 ℃, the oven dry of dewatering;
4, surface treatment, with the bagasse of 4% phenylformic acid aqueous solution soaking oven dry at least 2 hours, dehydration again, 100 ℃ of oven dry;
5, with (1) with handle after bagasse put into the mixer mechanically mixing, add coupling agent and whipping agent simultaneously, mix and be compound;
6, compound is put into forcing machine, extrude at 150~200 ℃;
7, extruded stock is put into metal die, extrusion forming, pressure is 18~22MPa, the dwell time is 5~10 minutes, cooling die, die sinking is taken out wood and is moulded the composite material of waste goods.
Three, performance
To mould the relevant index of composite material of waste as follows for wood after testing:
Bending strength 〉=25MPa
Tensile strength 〉=17MPa
Density 1.1g/cm 3
Wherein embodiment 1 does not add whipping agent, and the bending strength that wood is moulded composite material of waste is 26Mpa, and tensile strength is 18Mpa, and density is 1.4g/cm 3
Embodiment 4 does not add coupling agent, and the bending strength that wood is moulded composite material of waste is 20Mpa, and tensile strength is 15Mpa, and density is 1.0g/cm 3

Claims (2)

1, a kind of preparation method who utilizes the matrix material that waste makes, it is characterized in that, prepare that waste is 98% in the raw material of described matrix material, the each component weight percent is a thermoplasticity waste 51%~60%, the solid slag 38%~48% that contains vegetable fibre, coupling agent 0-2%, whipping agent 0-1%, each raw material weight per-cent sum is absolutely, wherein, described thermoplasticity waste is waste polyethylene bag film and agricultural plastic film, and the described solid slag that contains vegetable fibre is a bagasse, and the concrete technology for preparing this matrix material is:
(1) waste polyethylene bag film and agricultural plastic film are carried out oil removing and abatement processes,, be made for particle diameter has fold less than 5mm, surface particle then through the fragmentation of plastics film breaking machine;
(2) bagasse is pulverized, 200 orders sieve;
(3) bagasse after the pulverizing is through 100 ℃, the oven dry of dewatering;
(4) surface treatment, with the bagasse of 4% phenylformic acid aqueous solution soaking oven dry at least 2 hours, dehydration again, 100 ℃ of oven dry;
(5) bagasse after particle that step (1) is obtained and the processing is put into the mixer mechanically mixing, adds coupling agent and whipping agent simultaneously, mixes to be compound;
(6) compound is put into forcing machine, extrude at 150~200 ℃;
(7) extruded stock is put into metal die, extrusion forming, pressure is 18~22MPa, the dwell time is 5~10 minutes, cooling die, die sinking is taken out wood and is moulded the composite material of waste goods.
2, a kind of preparation method who utilizes the matrix material that waste makes as claimed in claim 1, it is characterized in that agricultural plastic film and waste polyethylene bag film mutual friction mutually, tearing, shearing, fragmentation and temperature distortion and become particle diameter has fold less than 5mm, surface particle in film breaking machine.
CNB2006100487681A 2006-10-31 2006-10-31 Preparing method of composite material made of waste material Expired - Fee Related CN100503699C (en)

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