CN102002251A - Wood plastic composite coiled material floor and preparation method thereof - Google Patents

Wood plastic composite coiled material floor and preparation method thereof Download PDF

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Publication number
CN102002251A
CN102002251A CN 201010556750 CN201010556750A CN102002251A CN 102002251 A CN102002251 A CN 102002251A CN 201010556750 CN201010556750 CN 201010556750 CN 201010556750 A CN201010556750 A CN 201010556750A CN 102002251 A CN102002251 A CN 102002251A
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China
Prior art keywords
wood
floor
temperature
composite sheet
carried
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Pending
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CN 201010556750
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Chinese (zh)
Inventor
陈中宇
陈坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo High-Tech District Sibaishu New Materials Technology Co Ltd
NINGBO VOCANA GREENER WOOD TECHNOLOGY Co Ltd
Original Assignee
Ningbo High-Tech District Sibaishu New Materials Technology Co Ltd
NINGBO VOCANA GREENER WOOD TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo High-Tech District Sibaishu New Materials Technology Co Ltd, NINGBO VOCANA GREENER WOOD TECHNOLOGY Co Ltd filed Critical Ningbo High-Tech District Sibaishu New Materials Technology Co Ltd
Priority to CN 201010556750 priority Critical patent/CN102002251A/en
Publication of CN102002251A publication Critical patent/CN102002251A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a wood plastic composite coiled material floor and a preparation method thereof. The wood plastic composite coiled material floor is mainly prepared from the following raw materials in parts by mass: 20-50 parts of PVC (Polyvinyl Chloride), 40-70 parts of wood flour, 10-20 parts of filler, 2-3 parts of stabilizer, 2-3 parts of lubricant, 0.1-0.3 part of toner, 1.5-3 parts of processing aid and 0.6-0.8 part of foaming agent. Because the wood plastic composite material made from PVC and wood flour by simple forming process is utilized in the coiled material floor and has the advantages of light weight, moisture protection, weather resistance, mold resistance, corrosion resistance, high mechanical performance, low production cost, and the like, the prepared wood plastic composite coiled material floor not only has excellent performance but also has the texture of the natural wood, can better satisfy the requirements of people on the green world, bring comfortable feeling to people and can be industrially produced in batches.

Description

A kind of wood is moulded composite sheet material floor and preparation method thereof
Technical field
The present invention relates to a kind of floor, especially relate to a kind of wood and mould composite sheet material floor and preparation method thereof.
Background technology
At present, seam is few, associative perception is strong, the corner or spot as yet untouched by a clean-up campaign is few, the outward appearance class is higher and quality standard is high because coiled material floor has, and the problem that the back of correctly mating formation produces because of quality product is few, so it becomes the product that enjoys people to favor on the decoration building materials market.Yet, the present PVC(Polyvinylchlorid that exists on the market, polyvinyl chloride) coiled material floor makes many human consumers forbidding because of it costs an arm and a leg, the cord coiled material floor again since its fungus resistance can be poor, weathering resistance is poor, be subject to the easy hygroscopic deformation of termite burn into, do not prevent fires and greatly waste defective such as the forest reserves has restricted its development.
Summary of the invention
It is low that technical problem to be solved by this invention provides a kind of cost, and fungus resistance can be good, good weatherability, corrosion-resistant good wood mould the composite sheet material floor, and the simple wood of technological process is moulded the preparation method on composite sheet material floor.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of wood is moulded the composite sheet material floor, and it is mainly formed by following preparation of raw material, prepares each raw material according to mass parts:
PVC 20~50 wood powders 40~70 fillers 10~20 stablizers 2~3
Lubricant 2~3 toners 0.1~0.3 processing aid 1.5~3 whipping agents 0.6~0.8.
It is mainly formed by following preparation of raw material, prepares each raw material according to mass parts:
PVC 35 wood powders 55 fillers 15 stablizers 2.5
Lubricant 2.5 toners 0.2 processing aid 2.25 whipping agents 0.7.
The mixture of described filler for mainly mixing by lime carbonate, titanium dioxide, stearic acid and epoxy soybean oil.
A kind of above-mentioned wood is moulded the preparation method on composite sheet material floor, may further comprise the steps:
1. granulation: each raw material of mass parts weighing of moulding each raw material that the composite sheet material floor provides according to above-mentioned wood; Mix each raw material, obtain the dust-like material; The dust-like material is extruded; The material of extruding is cut, obtain granular material;
2. extrusion profile: granular material is carried out drying treatment, and the exsiccant temperature is no more than 85 ℃; Dried granular material is dropped in the forcing machine extrusion profile;
3. cooling and shaping section bar: under vacuum condition, utilize water coolant that the section bar of extruding is carried out cooling and shaping, the temperature of water coolant is controlled in 5~10 ℃ of scopes;
4. draw section bar: the section bar behind the cooling and shaping is at the uniform velocity drawn the speed fast 1~12% that pulling speed is extruded than section bar;
5. cut section bar: according to the size that reality requires the section bar after drawing is carried out cutting process, obtain required wood and mould the composite sheet material floor.
Before the 1. middle weighing wood powder of described step, adopt coupling processing method or graft copolymerization treatment process or acidylate treatment process that wood powder is carried out surface modification earlier, to improve the interface compatibility of wood powder and PVC.
Before the 1. middle weighing wood powder of described step, earlier wood powder is carried out drying treatment, so that its water content is below 0.5~0.2%.
After wood powder is carried out surface modification, again wood powder is carried out drying treatment, so that its water content is below 0.5~0.2%.
Adopt normal pressure forced air drying method or boulton process or infrared drying that wood powder is carried out drying treatment, drying temperature is 70~90 ℃, and be 1~3 hour time of drying.
Described step is mixed each raw material in 1., and the detailed process that obtains the dust-like material is: 1.-1, PVC, wood powder, filler, stablizer, lubricant, toner and processing aid are added in the mixer, the operation mixer, temperature heats up gradually since 0 ℃; 1.-2, when temperature rises to 115 ℃, add whipping agent, continue to heat up until 125 ℃, keep high temperature to mix 10 minutes; 1.-3, mixer is out of service, exports mixed material to the low-temperature mixed case; 1.-4, when material temperature drops to 45 ℃ in the low-temperature mixed case, low-temperature mixed case outputting material is to W moulding mixture tube; 1.-5, by W moulding mixture tube output dust-like material.
2. add colour batch in described step in, require granular material and the colour batch batching of mixing colours according to reality earlier; Then granular material and the colour batch for preparing carried out drying treatment, the exsiccant temperature is no more than 85 ℃; Again dried granular material and colour batch are dropped in the forcing machine extrusion profile.
Compared with prior art, the invention has the advantages that because the employing of this coiled material floor is the wood plastic composite that raw material is made by PVC and wood powder, wood plastic composite has light weight, protection against the tide, weather-proof, antifungal, corrosion-resistant, advantage such as mechanical property is high, moulding process is simple, production cost is low, therefore the wood-plastic coiled material floor for preparing is excellent performance not only, and has the texture of natural timber, can satisfy the pursuit of people well to green world, bring people comfortable satisfied impression, can realize industrialized mass production simultaneously.
The maximum that has is compared on this wood-plastic coiled material floor with the PVC coiled material floor advantage is a low production cost, recyclable utilization is waste wood and plastics cheaply, effectively alleviated the China's Forest Resources poorness and the contradiction of wood supply anxiety, therefore the cost of product and to sell price lower has vast market prospect and good economic benefit and social benefit.Advantages such as having fire-retardant, the anti-ant moth of ideal, fungus resistance, weathering resistance, protection against the tide, environmental protection is compared on this wood-plastic coiled material floor with the cord coiled material floor, but widespread use reaches outdoor high-grade decorations indoors.
Preparation method's production technique on this wood-plastic coiled material floor is easy.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment one:
A kind of wood that the present invention proposes is moulded the composite sheet material floor, and it is mainly formed by following preparation of raw material, prepares each raw material according to mass parts:
PVC 35 wood powders 55 fillers 15 stablizers 2.5
Lubricant 2.5 toners 0.2 processing aid 2.25 whipping agents 0.7.
Above-mentioned PVC(Polyvinylchlorid, polyvinyl chloride) product that adopts Taiwan plastic Industries, Inc to produce; The product that wood powder adopts Deqing, Zhejiang woods board wood powder company limited to produce; The mixture of filler for mainly mixing by lime carbonate, titanium dioxide, stearic acid and epoxy soybean oil, at this, lime carbonate has tangible promotion plastification in the course of processing, be beneficial to product processing, also has distinctive superpower metal-stripping, high lubricating effect can improve the luminance brightness of product surface; Titanium dioxide formal name used at school titanium dioxide (TiO 2), it has reinforcement, anti-aging, filling effect again as tinting material; Stearic acid is a kind of lubricant, itself and resin at high temperature have good consistency, and produce certain plastification, can effectively reduce intermolecular internal cohesive energy in the resin, slacken intermolecular phase mutual friction, to reach the purpose that reduces the happy and harmonious viscosity of resin, improves melt fluidity; Epoxy soybean oil has good plasticization effect and consumption is few, acid number is low, non-toxic efficient; The product that stablizer adopts Arkema to produce; The product that lubricant adopts HQF to produce; The product that toner adopts Clariant to produce; Processing aid adopts the high and new technology industrial development zone, Ningbo to think the product that hundred tree novel material Science and Technology Ltd.s produce; The product that whipping agent adopts Clariant to produce.
Embodiment two:
It is basic identical that the wood of present embodiment and embodiment one is moulded the composite sheet material floor, and difference only is the difference of the mass parts of each raw material, and present embodiment is prepared each raw material according to following mass parts:
PVC 20 wood powders 70 fillers 20 stablizers 3
Lubricant 3 toners 0.3 processing aid 3 whipping agents 0.6.
Embodiment three:
The wood of present embodiment and embodiment one, embodiment two moulds that the composite sheet material floor is basic identical, and difference only is the difference of the mass parts of each raw material, and present embodiment is prepared each raw material according to following mass parts:
PVC 50 wood powders 40 fillers 10 stablizers 2
Lubricant 2 toners 0.1 processing aid 1.5 whipping agents 0.8.
Embodiment four:
A kind of above-mentioned wood is moulded the preparation method on composite sheet material floor, and it specifically may further comprise the steps:
1. granulation: the wood that provides according to embodiment one or embodiment two or embodiment three is moulded each raw material of mass parts weighing of each raw material on composite sheet material floor; Mix each raw material, obtain the dust-like material; The dust-like material is extruded; The material of extruding is cut, obtain granular material.
Wherein, mix each raw material, the detailed process that obtains the dust-like material is: 1.-1, PVC, wood powder, filler, stablizer, lubricant, toner and processing aid are added in the existing mixer, the operation mixer, temperature heats up gradually since 0 ℃; 1.-2, when temperature rises to 115 ℃, add whipping agent, continue to heat up until 125 ℃, keep high temperature to mix 10 minutes; 1.-3, mixer is out of service, exports mixed material to existing low-temperature mixed case, carries out low-temperature mixed in the low-temperature mixed case, the purpose of low-temperature mixed is for material is cooled off; 1.-4, when material temperature drops to 45 ℃ in the low-temperature mixed case, low-temperature mixed case outputting material is to the existing W moulding mixture tube; 1.-5, by W moulding mixture tube output dust-like material.
Wherein, the detailed process that the dust-like material is extruded is: the dust-like material in the W moulding mixture tube is gone in the existing tablets press extrude, the temperature of extruding is followed successively by: 122 ℃ in machine barrel 1 district, 132 ℃ in machine barrel 2 districts, 137 ℃ in machine barrel 3 districts, 147 ℃ in machine barrel 4 districts, 157 ℃ in machine barrel 5 districts, 160 ℃ of heads.
Wherein, the detailed process that the material of extruding is cut is: the material that the process that will go up is extruded cuts through existing belt transmission cutting knife device, forms granular material, can be arranged to 18 rev/mins at this belt-driven rotating speed.
In this specific embodiment, before the weighing wood powder,, then need earlier wood powder to be carried out surface modification if wood powder is a non-modified, to improve the interface compatibility of wood powder and PVC, again wood powder is carried out drying treatment.The key issue of wood plastic composite is the interface compatibility between two kinds of materials (wood powder, PVC), along with the mechanical property of the increase matrix material of consistency is just good more.All contain hydroxyl in each basic ring of the macromolecular repeating unit of lignocellulose, these hydroxyls have formed intramolecular hydrogen bond or intermolecular hydrogen bonding, make fiber show stronger wetting ability, and thermoplastics PVC has hydrophobicity, this just makes interface wet ability, interfacial adhesion between matrix and enhancing body relatively poor, therefore will carry out surface modification to wood powder.Wood powder is carried out surface modification can adopt several different methods, as coupling processing method, graft copolymerization treatment process, acidylate treatment process etc.
Simultaneously owing to added a large amount of wood powders in the wood plastic composite, lignocellulose wherein has certain moisture, before extrusion plasticizing, needs the raw material wood powder is carried out drying treatment, otherwise, will cause product surface to produce a large amount of bubbles, even cause the formed product difficulty.In the present invention, wood powder exsiccant processing condition are: adopt normal pressure forced air drying method, setting drying temperature is 70~90 ℃, and be 1~3 hour time of drying, makes the wood powder water content below 0.5~0.2%.Drying to wood powder also can adopt other drying meanss, as boulton process, infrared drying etc.Preferably use immediately through dried wood powder, prevent dry wood powder moisture absorption again of crossing.
In the present embodiment, wood powder is directly chosen the wood powder that Deqing, Zhejiang woods board wood powder company limited produces, because this wood powder has carried out surface modification, therefore only needs it is carried out drying treatment.
2. extrusion profile: in blanking tube, granular material is carried out drying treatment; the exsiccant temperature is no more than 85 ℃; the blanking pipeline outside ring that blanking tube is connected with existing forcing machine is wound with the pipeline that feeds water coolant; can the material after the drying treatment be cooled off; prevent the blanking caking, and can protect bearing, (because if the blanking caking; certainly will result in blockage at the bearing place, overlong time then can cause damage to bearing).Under expect when forcing machine is extruded that granular material has nothing in common with each other in the various piece of the forcing machine temperature that sets in service, at the fuselage afterbody of forcing machine, i.e. the blanking section of material, temperature can be set at: 140~150 ℃; At the waist of forcing machine, i.e. the stable section of material, temperature can be set at 150~160 ℃; At the forebody of forcing machine, i.e. the fluxing zone of material, temperature can be set in 160~175 ℃; The temperature of flange position and forebody is consistent, but when the plastifying material arrived the mould sections moulding of forcing machine, that die temperature be set was higher slightly, is good with 185~195 ℃.
3. cooling and shaping section bar: because wood plastic composite is the structure foam material, so the plastifying material should realize typing to its cooling rapidly after the moulding in mould sections, so the present invention utilizes water coolant that the section bar of extruding is carried out cooling and shaping under vacuum condition; Simultaneously because the temperature of water coolant can directly influence the surface skining effect of product, if water temperature is too high, then the skinning effect is understood relatively poorly, and surface smoothness is corresponding also relatively poor, so the present invention is controlled at the temperature of water coolant in 5~10 ℃ of scopes.
4. draw section bar: the section bar behind the cooling and shaping is at the uniform velocity drawn, because pulling speed directly influences the contour structures and the size of product, to make pulling speed stable simultaneously, if unstable rule can cause the section bar physical dimension ring phenomenon that causes not of uniform size, under the certain situation of extruded velocity, pulling speed and goods layman size are inversely proportional to, the fast more goods physical dimension of pulling speed is more little, goods even can be broken, therefore pulling speed can be arranged to the speed fast 1~12% extruded than section bar in the present invention.
5. cut section bar: the size according to actual requirement of client or environmental requirement is carried out cutting process to the section bar after drawing, and obtains required wood and moulds the composite sheet material floor.
Embodiment five:
The preparation process of present embodiment and embodiment five is basic identical, and difference only is to add colour batch in step in 2., earlier according to the actual requirement of client to granular material and the colour batch batching of mixing colours; Then granular material and the colour batch for preparing carried out drying treatment, the exsiccant temperature is no more than 85 ℃; Again dried granular material and colour batch are dropped in the forcing machine extrusion profile.The floor that the adding colour batch is made is rich color not only, and the floor of making be need not to carry out the mopping processing again.At this, colour batch directly adopts commercially available colour batch.

Claims (10)

1. a wood is moulded the composite sheet material floor, it is characterized in that it is mainly formed by following preparation of raw material, prepares each raw material according to mass parts:
PVC 20~50 wood powders 40~70 fillers 10~20 stablizers 2~3
Lubricant 2~3 toners 0.1~0.3 processing aid 1.5~3 whipping agents 0.6~0.8.
2. a kind of wood according to claim 1 is moulded the composite sheet material floor, it is characterized in that it is mainly formed by following preparation of raw material, prepares each raw material according to mass parts:
PVC 35 wood powders 55 fillers 15 stablizers 2.5
Lubricant 2.5 toners 0.2 processing aid 2.25 whipping agents 0.7.
3. a kind of wood according to claim 1 and 2 is moulded the composite sheet material floor, it is characterized in that the mixture of described filler for mainly being mixed by lime carbonate, titanium dioxide, stearic acid and epoxy soybean oil.
4. the described wood of claim 1 is moulded the preparation method on composite sheet material floor, it is characterized in that may further comprise the steps:
1. granulation: each raw material of mass parts weighing of each raw material that provides according to claim 1; Mix each raw material, obtain the dust-like material; The dust-like material is extruded; The material of extruding is cut, obtain granular material;
2. extrusion profile: granular material is carried out drying treatment, and the exsiccant temperature is no more than 85 ℃; Dried granular material is dropped in the forcing machine extrusion profile;
3. cooling and shaping section bar: under vacuum condition, utilize water coolant that the section bar of extruding is carried out cooling and shaping, the temperature of water coolant is controlled in 5~10 ℃ of scopes;
4. draw section bar: the section bar behind the cooling and shaping is at the uniform velocity drawn the speed fast 1~12% that pulling speed is extruded than section bar;
5. cut section bar: according to the size that reality requires the section bar after drawing is carried out cutting process, obtain required wood and mould the composite sheet material floor.
5. a kind of wood according to claim 4 is moulded the preparation method on composite sheet material floor; it is characterized in that before the 1. middle weighing wood powder of described step; adopt coupling processing method or graft copolymerization treatment process or acidylate treatment process that wood powder is carried out surface modification earlier, to improve the interface compatibility of wood powder and PVC.
6. a kind of wood according to claim 4 is moulded the preparation method on composite sheet material floor, it is characterized in that earlier wood powder being carried out drying treatment, so that its water content is below 0.5~0.2% before the 1. middle weighing wood powder of described step.
7. a kind of wood according to claim 5 is moulded the preparation method on composite sheet material floor, it is characterized in that again wood powder being carried out drying treatment after wood powder is carried out surface modification, so that its water content is below 0.5~0.2%.
8. mould the preparation method on composite sheet material floor according to claim 6 or 7 described a kind of wood, it is characterized in that adopting normal pressure forced air drying method or boulton process or infrared drying that wood powder is carried out drying treatment, drying temperature is 70~90 ℃, and be 1~3 hour time of drying.
9. a kind of wood according to claim 8 is moulded the preparation method on composite sheet material floor, it is characterized in that mixing each raw material during described step 1., the detailed process that obtains the dust-like material is: 1.-1, PVC, wood powder, filler, stablizer, lubricant, toner and processing aid are added in the mixer, the operation mixer, temperature heats up gradually since 0 ℃; 1.-2, when temperature rises to 115 ℃, add whipping agent, continue to heat up until 125 ℃, keep high temperature to mix 10 minutes; 1.-3, mixer is out of service, exports mixed material to the low-temperature mixed case; 1.-4, when material temperature drops to 45 ℃ in the low-temperature mixed case, low-temperature mixed case outputting material is to W moulding mixture tube; 1.-5, by W moulding mixture tube output dust-like material.
10. a kind of wood according to claim 9 is moulded the preparation method on composite sheet material floor, it is characterized in that adding colour batch in described step in 2., requires granular material and the colour batch batching of mixing colours according to reality earlier; Then granular material and the colour batch for preparing carried out drying treatment, the exsiccant temperature is no more than 85 ℃; Again dried granular material and colour batch are dropped in the forcing machine extrusion profile.
CN 201010556750 2010-11-24 2010-11-24 Wood plastic composite coiled material floor and preparation method thereof Pending CN102002251A (en)

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Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN102229728A (en) * 2011-05-10 2011-11-02 江苏明天材料科技有限公司 Micro-foaming wood plastic composite sheet and preparation method thereof
CN102653620A (en) * 2012-05-10 2012-09-05 昆山吉尔吉新型建材有限公司 Method for preparing wood-plastic composite material
CN102773905A (en) * 2012-08-07 2012-11-14 安徽光明槐祥工贸集团有限公司 Method for producing light wallboards by using rice hulls
CN103709544A (en) * 2013-11-26 2014-04-09 大连环美科技集团有限公司 High-strength micro-foaming PVC wood plastic special-purpose material and its preparation method and use
CN104004370A (en) * 2014-05-04 2014-08-27 安徽森泰塑木新材料有限公司 Production technology for plastic-wood plate with mixed color
CN104448605A (en) * 2014-11-05 2015-03-25 湖南益丰塑业有限公司 Preparation method of ecological bamboo-wood profile
CN105086257A (en) * 2015-08-26 2015-11-25 安徽北马科技有限公司 High-weatherability PVC (polyvinyl chloride) wood-plastic composite material
CN105647073A (en) * 2016-04-08 2016-06-08 苏州新区华士达工程塑胶有限公司 Wood-plastic type engineering plastic composition

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102229728A (en) * 2011-05-10 2011-11-02 江苏明天材料科技有限公司 Micro-foaming wood plastic composite sheet and preparation method thereof
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CN102653620A (en) * 2012-05-10 2012-09-05 昆山吉尔吉新型建材有限公司 Method for preparing wood-plastic composite material
CN102773905A (en) * 2012-08-07 2012-11-14 安徽光明槐祥工贸集团有限公司 Method for producing light wallboards by using rice hulls
CN103709544A (en) * 2013-11-26 2014-04-09 大连环美科技集团有限公司 High-strength micro-foaming PVC wood plastic special-purpose material and its preparation method and use
CN103709544B (en) * 2013-11-26 2015-12-02 大连环美科技集团有限公司 A kind of high strength fretting map PVC wood plastic PP Pipe Compound and preparation method thereof and application
CN104004370A (en) * 2014-05-04 2014-08-27 安徽森泰塑木新材料有限公司 Production technology for plastic-wood plate with mixed color
CN104448605A (en) * 2014-11-05 2015-03-25 湖南益丰塑业有限公司 Preparation method of ecological bamboo-wood profile
CN105086257A (en) * 2015-08-26 2015-11-25 安徽北马科技有限公司 High-weatherability PVC (polyvinyl chloride) wood-plastic composite material
CN105647073A (en) * 2016-04-08 2016-06-08 苏州新区华士达工程塑胶有限公司 Wood-plastic type engineering plastic composition

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Application publication date: 20110406