CN101508804A - Wood-plastic section bar and molding method thereof - Google Patents
Wood-plastic section bar and molding method thereof Download PDFInfo
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- CN101508804A CN101508804A CNA2009100966618A CN200910096661A CN101508804A CN 101508804 A CN101508804 A CN 101508804A CN A2009100966618 A CNA2009100966618 A CN A2009100966618A CN 200910096661 A CN200910096661 A CN 200910096661A CN 101508804 A CN101508804 A CN 101508804A
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- Dry Formation Of Fiberboard And The Like (AREA)
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Abstract
The invention relates to a wood-plastic section forming method by mixing wood and plastics, in which wood sawdust and plastic are used. In the method, powdery wood sawdust and plastic particles are evenly mixed in the proportion of 1:0.4 to 0.65 to form a wood-plastic particle mixture, then the wood-plastic particle mixture is added into a wood-plastic particle mixing and plasticizing machine for mixing and plasticizing or a wood-plastic extrusion molding machine for injection molding or extrusion molding. The invention has the following advantages: the first is that the wood-plastic section has the advantages of high strength, waterproofness, corrosion resistance, acid and alkali resistance, unlikely deformation, flame retardance, no formaldehyde and repeatability, thus being used as both outdoor decoration material and indoor decoration material; the second is that wood chips, sawdust and joints unable to be recycled can be crushed and recycled for the second time processing and utilization, thus not only avoiding environment.
Description
Technical field
The present invention relates to a kind of timber be mixed the forming method of a kind of Wood-plastic profiles of becoming a useful person with plastics, belong to and mix section bar and make the field.
Background technology
Publication number CN 101066599A, title " a kind of bamboo-plastic floorboard and preparation method thereof ", this bamboo-plastic floorboard is moulded plate with bamboo and is made the floor blanket, described floor blanket is controlled under 30～60 ℃ of conditions in temperature and covers with paint, lacquer, colour wash, etc. priming paint, the imitative natural bamboo line of real bamboo of printing, be coated with after the finishing paint drying described floor, described bamboo is moulded plate and expects particle by bamboo, the abundant mixing of plastic grain and additive is hot-forming under the heating high-pressure condition, described bamboo material particle, the mass ratio of plastic grain is 1:0.7～1.0, and the addition of described additive is a bamboo material particle, 0.5%～2% of plastic grain quality summation.The technology that is adopted is: the preparation that (1) bamboo is moulded plate: described bamboo is moulded plate and expects the abundant mixing of particle, plastic grain and tackiness agent by bamboo, at 165～195 ℃, pressure be carry out under 5～10MPa condition hot-forming, the cooling rear haulage is made bamboo and is moulded plate, the mass ratio of described bamboo material particle, plastic grain is 1:0.7～1.0, and the addition of described additive is 0.5%～2% of bamboo material particle, a plastic grain quality summation; (2) preparation of floor slab: the bamboo of making is moulded the plate cutting processing make the floor slab; (3) the floor slab is heated to 30～40 ℃ and keep under the temperature, covers with paint, lacquer, colour wash, etc. priming paint on the steel slab surface of described floor, after the priming paint drying, the imitative real bamboo natural wood grain of printing is coated with finishing paint again.The problem of its outwardness: the one, when the mass ratio of bamboo material particle, plastic grain is 1:0.7～1.0, at 165～195 ℃, pressure is when carrying out hot pressing under 5～10MPa condition, the layering inequality very easily takes place between bamboo material particle and the molten plastic, cause bamboo material and the phenomenon that the plastics piecemeal manifests, can't reach the inner quality and the sense organ effect of bamboo-plastic floorboard; Manufacturing process is unreasonable, because the Vicat softening point of plastics is at 75 ℃, when plastic pellet during at 165～195 ℃, plastics are in a liquid state, and the timber under the liquid state, mould mixture, both unmatchful plastics are implemented pressurization, also can't implement pressurization to the bamboo material effectively, lack exploitativeness, and under 165～195 ℃ temperature, catabiosis easily takes place in plastics, directly has influence on the Forming Quality and the work-ing life of bamboo-plastic floorboard.
Summary of the invention
Purpose of design: the weak point of avoiding background technology to exist, design a kind of liquid pressurization that both need not, need not a kind of Wood-plastic profiles and the forming method of high-temperature fusion again.
Design: in order to realize above-mentioned purpose of design.1, adopting 1: 0.4～0.65 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding, is one of feature of the present invention.The purpose of doing like this is: ratio is that 1: 0.4～0.69 powdery wood chip and plastic grain mix and constitute wooden plastic particles compound; not only can guarantee that powdered granule wood chip and plastic grain reach abundant plasticizing and mix the purpose of moulding in the mixing plasticizing machine of wooden plastic particles, and can not produce the demixing phenomenon of any state.2, wooden plastic particles compound is inserted mixing plastifying design in the mixing plasticizing machine of wooden plastic particles, is two of feature of the present invention.The purpose of doing like this is: because in the wooden plastic particles compound, agglomerating after the plastic pellet fusion with the plasticizing fully of wood grain, it is the key point that can Wood-plastic profiles become practical section bar, it should guarantee the complete affinity of wood grain and molten plastic, guarantee that again wood grain and plastics melting charge form relative distribution equably, make wood after the moulding mould face and be wooden texture face face, and can not produce mottled wood, mould face, and the mixing plasticizing in the mixing plasticizing machine of wooden plastic particles of wooden plastic particles compound, both can reach the complete affinity of wood grain and molten plastic, and can make wood form relative uniform mixing again with the plastics melting charge.3, the heating and temperature control of plastic pellet is three of a feature of the present invention 120～155 ℃ design.The purpose of doing like this is: because the Vicat softening point of plastics temperature is about 75 ℃, fusing point is crossed when temperature and to be higher than in 120～155 ℃ of temperature are enclosed, and has not only quickened the aging of plastic component, and the direct avidity of influence wood and molten plastic.Therefore control the Heating temperature of plastic pellet effectively, both be related to the work-ing life of plastics itself, be related to the reliability of the affinity quality that wood moulds again.4, adopting wood to mould extrusion shaping machine and make Wood-plastic profiles, is four of feature of the present invention.The purpose of doing like this is: have the adjustable function of temperature because wood is moulded extrusion shaping machine, have the function that band is extruded out again, therefore adopt wood to mould extrusion shaping machine and make Wood-plastic profiles, need not hot-press forming device, only need to change die orifice, can obtain required section bar.
Technical scheme 1: Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.4～0.65 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Technical scheme 2: the forming method of Wood-plastic profiles, it comprises wood chip and plastics, powdery wood chip and plastic pellet are mixed and constitute wooden plastic particles compound in 1: 0.4～0.65 ratio, then wooden plastic particles compound is inserted in the mixing plasticizing machine of wooden plastic particles mixing plasticizing or insert wood and mould extrusion shaping machine injection moulding or extrusion moulding.
The present invention compares with background technology, and the one, Wood-plastic profiles has intensity height, waterproof, anticorrosion, antiacid alkali resistant, not yielding, fire-retardant, formaldehydeless, reusable advantage, both can be used as the outdoor decoration material, can be used as house decorative material again; The 2nd, irretrievable corner wood chip, wood chip, wood, knaur can be pulverized the recovery secondary and carry out processing and utilization, not only avoided the environmental pollution and the wasting of resources, but also turned waste into wealth, realized the resource circulation utilization; The 3rd, it is attractive in appearance both to have kept woody texture, have heat insulation, insulation, waterproof, mothproof, fire-retardant, antiacid alkali-resistivity, erosion resistance characteristics again, and because Wood-plastic profiles need not tackiness agent, so do not contain obnoxious flavour such as formaldehyde in the Wood-plastic profiles, real is environmentfriendly products.
Description of drawings
Fig. 1 is the synoptic diagram of Wood-plastic profiles forming method.
Embodiment
Embodiment 1: with reference to accompanying drawing 1.A kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.4 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.Described plastics are polyethylene or polypropylene.
Embodiment 2: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.41 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 3: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.42 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 4: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.43 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 5: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.44 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 6: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.45 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 7: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.46 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 8: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.47 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 9: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.48 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 10: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.49 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 11: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.5 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 12: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.51 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 13: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.52 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 14: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.53 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 15: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.54 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 16: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.55 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 17: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.56 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 18: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.57 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 19: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.58 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 20: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.59 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 21: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.6 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 22: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.61 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 23: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.62 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 24: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.63 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 25: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.64 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 6: on the basis of embodiment 1, and a kind of Wood-plastic profiles, it comprises wood chip and plastics, is 1: 0.65 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding by ratio.
Embodiment 26: on the basis of embodiment 1～25, a kind of forming method of Wood-plastic profiles, it comprises wood chip and plastics, remove wood chip skin and haze tallow and wood dust is broken into powdered granule, powdery wood chip and plastic pellet are mixed and constitute wooden plastic particles compound in 1: 0.4～0.65 ratio, then wooden plastic particles compound is inserted in the mixing plasticizing machine of wooden plastic particles mixing plasticizing or insert wood and mould extrusion shaping machine injection moulding or extrusion moulding.The molded machine of described wood is the adjustable plastic extruding forming machine of temperature control, the mixing plasticizing machine of described wooden plastic particles is the mixing plasticizing machine of material, the heating and temperature control of plastic pellet is at 120～150 ℃ and select required temperature value in this temperature range, and comprises end value.
Embodiment 27: on the basis of embodiment 26, the heating and temperature control of plastic pellet is at 120 ℃ or 121 ℃ or 122 ℃ or 123 ℃ 124 ℃ 125 ℃ or 126 ℃ or 127 ℃ or 128 ℃ or 129 ℃ or 130 ℃ or 131 ℃ or 132 ℃ or 133 ℃ or 134 ℃ or 135 ℃ or 136 ℃ or 137 ℃ or 138 ℃ or 139 ℃ or 140 ℃ or 141 ℃ or 142 ℃ or 143 ℃ or 144 ℃ or 145 ℃ or 146 ℃ or 147 ℃ or 148 ℃ or 149 ℃ or 150 ℃.
What need understand is: though the foregoing description is to the present invention's detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than to the restriction of utility model mentality of designing; any combination, increase or modification that does not exceed mentality of designing of the present invention all falls within the scope of protection of the present invention.
Claims (6)
1, a kind of Wood-plastic profiles, it comprises wood chip and plastics, it is characterized in that by ratio be 1: 0.4～0.65 powdery wood chip and plastic grain fusion injection moulding or extrusion moulding.
2, Wood-plastic profiles according to claim 1 is characterized in that: described plastics are polyethylene or polypropylene.
3, a kind of forming method of Wood-plastic profiles, it comprises wood chip and plastics, it is characterized in that: powdery wood chip and plastic pellet are mixed and constitute wooden plastic particles compound in 1: 0.4～0.65 ratio, then wooden plastic particles compound is inserted in the mixing plasticizing machine of wooden plastic particles mixing plasticizing or insert wood and mould extrusion shaping machine injection moulding or extrusion moulding.
4, the forming method of Wood-plastic profiles according to claim 3 is characterized in that: the molded machine of described wood is the adjustable plastic extruding forming machine of temperature control.
5, the forming method of Wood-plastic profiles according to claim 3 is characterized in that: the mixing plasticizing machine of described wooden plastic particles is the mixing plasticizing machine of material.
6, the forming method of Wood-plastic profiles according to claim 3 is characterized in that: the heating and temperature control of plastic pellet is at 120～155 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100966618A CN101508804A (en) | 2009-03-11 | 2009-03-11 | Wood-plastic section bar and molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100966618A CN101508804A (en) | 2009-03-11 | 2009-03-11 | Wood-plastic section bar and molding method thereof |
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| Publication Number | Publication Date |
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| CN101508804A true CN101508804A (en) | 2009-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100966618A Pending CN101508804A (en) | 2009-03-11 | 2009-03-11 | Wood-plastic section bar and molding method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198687A (en) * | 2011-03-29 | 2011-09-28 | 南京航空航天大学 | Method for enhancing wood-plastic composite material |
| TWI424111B (en) * | 2010-06-02 | 2014-01-21 | ||
| CN105037939A (en) * | 2015-08-04 | 2015-11-11 | 豪元玩具（中山）有限公司 | Wood chip composite material |
-
2009
- 2009-03-11 CN CNA2009100966618A patent/CN101508804A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI424111B (en) * | 2010-06-02 | 2014-01-21 | ||
| CN102198687A (en) * | 2011-03-29 | 2011-09-28 | 南京航空航天大学 | Method for enhancing wood-plastic composite material |
| CN102198687B (en) * | 2011-03-29 | 2013-05-08 | 南京航空航天大学 | Method for enhancing wood-plastic composite material |
| CN105037939A (en) * | 2015-08-04 | 2015-11-11 | 豪元玩具（中山）有限公司 | Wood chip composite material |
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Open date: 20090819 |