CN103692502A - Production method for non-woven fabric enhanced laminated veneer lumber used as decorative profile base materials - Google Patents
Production method for non-woven fabric enhanced laminated veneer lumber used as decorative profile base materials Download PDFInfo
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- CN103692502A CN103692502A CN201310699345.6A CN201310699345A CN103692502A CN 103692502 A CN103692502 A CN 103692502A CN 201310699345 A CN201310699345 A CN 201310699345A CN 103692502 A CN103692502 A CN 103692502A
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- nonwoven
- veneer
- hot pressing
- laminated veneer
- veneer lumber
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 title claims abstract description 28
- 239000004745 nonwoven fabric Substances 0.000 title abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000007731 hot pressing Methods 0.000 claims description 50
- 239000007822 coupling agent Substances 0.000 claims description 29
- 239000000853 adhesive Substances 0.000 claims description 28
- 230000001070 adhesive effect Effects 0.000 claims description 28
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 26
- 238000004026 adhesive bonding Methods 0.000 claims description 26
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 24
- 238000005034 decoration Methods 0.000 claims description 22
- 241000219000 Populus Species 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 13
- 230000032683 aging Effects 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 8
- 150000004645 aluminates Chemical class 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 229910000077 silane Inorganic materials 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229920004933 Terylene® Polymers 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 244000166124 Eucalyptus globulus Species 0.000 claims 2
- 239000002023 wood Substances 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 abstract 1
- 241000219927 Eucalyptus Species 0.000 description 17
- 239000000203 mixture Substances 0.000 description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 10
- 238000003892 spreading Methods 0.000 description 10
- 230000007480 spreading Effects 0.000 description 10
- 244000050510 Cunninghamia lanceolata Species 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention discloses a production method for non-woven fabric enhanced laminated veneer lumber used as decorative profile base materials. Veneer and non-fabric which are served as raw materials are assembled to be in a required thickness after processing and are hot pressed to form into laminated veneer lumber through a hot compressor. The laminated veneer lumber base materials produced through the production method has the advantages of being good in physical and mechanical performance, reducing production costs, improving product technological contents and additional values, enabling existing timber resources and small and medium fast growing wood veneer to be effectively used, meanwhile improving the production efficiency, enabling the environmental protection standard to achieve a E1-level requirement, being capable of exporting to Europe and Southeast Asia countries and having remarkable economic and social benefits.
Description
Technical field
The invention belongs to technical field of composite materials, be specifically related to a kind of manufacture method of the nonwoven enhancement mode laminated veneer lumber as decoration bar section base material.
Background technology
Along with the fast-developing timber imbalance between supply and demand of China's economy becomes increasingly conspicuous, relatively deficient through level, hard broadleaf resource greatly.Add other types artificial board production equipment relative with technology backward, make timber comprehensive utilization ratio low, timber waste is serious, the development of having made to a certain extent wood-based panel industry.How efficiently utilizing existing timber resources, improve scientific and technological content and the added value of product, is problem demanding prompt solution.Comprise that the decorative timber of wooden decorative section bar, because of its good characteristic, is more and more subject to people's favor, in decorations, occupy very important status.In recent years, the fast development of real estate has driven the development of China's decorations industry greatly, for wooden decorative section bar has brought the huge market space.For a long time, people are to greatly through a large amount of fellings of level wildwood China fir, and China fir trends towards small diameter for material, has affected largely the application of China fir in decorative material.Therefore, explore the disparities between supply and demand problem that solves China fir, improve the comprehensive utilization ratio of timber, increase technology content, improve added value of product, the production application by sheet for decoration bar section, has important theory significance and actual application value to the development of forest products processing industry.Laminated veneer lumber is that multilayer view picture (or through splicing) veneer is the sheet material that main assembly gummed forms by rift grain, there is the wood-based plate that is similar to solid wood performance, the added value that has effectively improved fast growing wood Eucalyptus, poplar converted products, the class of improving product, widen its use field.Present standard GB/T/T20214-2006 is divided into laminated veneer lumber and structure laminated veneer lumber for non-structure by laminated veneer lumber, requirement for non-structure by not mentioned concrete mechanical property in laminated veneer lumber, is difficult to instructions for use in the practical application as decoration type base material.If with structure with laminated veneer lumber for the base material of decoration bar section, cause wasting one's talent on a petty job and bring the shortcoming that manufacturing cost is high.Because the Fast Growth of fast growing wood causes, its short texture, density are low, intensity difference, prepared decoration bar section with laminated veneer lumber exist that intensity is low, poor rigidity, the problem such as yielding, be unfavorable for the use of product, production technology is badly in need of being improved.
Nonwoven is through support row, to form fibre net structure by orientation or random fiber, then adopt the method reinforcing such as mechanical, hot sticky or chemical to form, there is the features such as pliable and tough, light weight, nontoxic, cheap, environmental protection, can overcome preferably the problem that increases cost of transportation because of board quality, and can play preferably the physical mechanics intensity that strengthens base material, in timber industry is produced, application prospect is good.
On traditional laminated veneer lumber production technology basis, the mechanical property that the present invention has adopted nonwoven to strengthen laminated veneer lumber reaches 15 ~ 45% than untreated raising, not only improved the comprehensive utilization ratio of small diameter grade fast growing wood, further widen the scope of application of poplar, Eucalyptus fast growing wood, the class of improving product.With nonwoven, strengthening laminated veneer lumber uses as decoration bar section base material, be conducive to change traditional mode of production that solid wood is base material of take, both saved a large amount of China fir resources, the generation of the defects such as distortion while having avoided again usining non-structure that Eucalyptus or board using poplar board are produced to use as decoration bar section base material with laminated veneer lumber, cracking, is conducive to promote the sustainable development of decoration bar section.Visible, adopt nonwoven to strengthen laminated veneer lumber and in the production application of decoration bar section, there are wide market prospects, there is remarkable economic and social profit.
Publication number be " CN202627407U " disclosure of the invention the preparation method of the non-woven fabric compounded plate of a kind of metal, take metal material as top layer, polymeric laminate is sandwich layer, nonwoven is bottom, molded through high-temperature roller.During use therein nonwoven assembly, nonwoven is positioned at top layer, be to be mainly convenient to institute's panel and outer surface of wall paste, and not mentioned to adopted nonwoven, be for strengthening sheet material physical and mechanical property.
Publication number be " CN102152564A " disclosure of the invention a kind of preparation method of synthetic resin dipped splint decorative finish artificial board, take veneer veneer, brown paper or nonwoven, thermoset synthetic resin, wood-based plate is raw material, is pressed into the sheet material of dull and stereotyped wood-based plate, mould pressing door panels and mold pressing abnormal shape through special process.But the effect of its not mentioned nonwoven, more without the effect that strengthens sheet material physical and mechanical property.
Summary of the invention
The object of the invention is for existing decoration bar section poor with the product physical and mechanical property of laminated veneer lumber, the problem that surface coating material is easy to crack, a kind of manufacture method of nonwoven enhancement mode laminated veneer lumber is provided, the nonwoven that the present invention manufactures strengthens laminated veneer lumber, there is good physical and mechanical property, be especially suitable for use as the base material of decoration bar section, not only reduce production costs, simple to operate, can improve timber comprehensive utilization ratio and production efficiency, and its physical and mechanical property is better than the index of full wood single-plate laminated timber, the successful implementation of nonwoven enhancement mode laminated veneer lumber has significant economic benefit and social benefit.
The present invention implements by the following technical programs:
A kind of manufacture method of the nonwoven enhancement mode laminated veneer lumber as decoration bar section base material: take veneer, nonwoven is raw material, veneer through gluing process, nonwoven is after coupling agent treatment, assembly, to the thickness needing, then makes nonwoven enhancement mode laminated veneer lumber through heat pressing process.
Described veneer is one or both in Eucalyptus veneer, board using poplar board.
Described nonwoven is one or more in polypropylene fibre, polyvinyl chloride fibre, terylene.
Described coupling agent is one or more of silane coupler, titanate coupling agent, aluminate coupling agent.
The manufacture method of the described nonwoven enhancement mode laminated veneer lumber as decoration bar section base material, comprises the following steps:
(1) Eucalyptus veneer or board using poplar board being dried to moisture content is 8 ~ 10%;
(2) choose thickness be the veneer of 1.2 ~ 1.6mm as dash board, the veneer that thickness is 1.8 ~ 2.8mm is central layer;
(3) nonwoven upper and lower surface is adopted to coupling agent treatment, coupling agent consumption is 0.5 ~ 1.5% of nonwoven weight;
(4) with urea-formaldehyde resin adhesive, the one side of dash board is carried out to gluing, glue-spread is 110 ~ 180 g/m
2, the two-sided gluing that carries out with urea-formaldehyde resin adhesive to central layer, glue-spread is 240 ~ 330 g/m
2;
(5) by blanket glued veneer ageing 10 ~ 20min;
(6) using dash board as ground floor (panel), coated face adds nonwoven, then add central layer successively, nonwoven, by rift grain assembly, to the thickness needing, finally add another layer of dash board (backboard), dash board not coated face, obtains slab outwardly;
(7) slab is carried out to precompressed processing, the time is 20 ~ 30min, and pressure is 0.8 ~ 1.1 MPa;
(8) slab of processing through step (7) is moved to hot press and carry out hot pressing, 100 ~ 135 ℃ of hot pressing temperatures, hot pressing pressure is 1.2 ~ 1.6MPa, hot pressing time is 0.8 ~ 1.3min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
The present invention can also be perfect by following measure: 1., by adopting the veneer of other fast growing woods to produce, can further widen raw material sources.2. by adopting surface modification treatment can reach the nonwoven that has good interface compatibility with timber, can simplify the use number of plies that maybe can reduce nonwoven in production to the process of surface treatment of nonwoven.3. by other adhesives such as phenolic resins, isocyanate glues, substitute urea-formaldehyde resin adhesive and produce, can further promote physical and mechanical property.
remarkable advantage of the present invention is:
(1) the prepared nonwoven of the present invention strengthens laminated veneer lumber, is that a kind of physical and mechanical property is good, the composite wooden material of low-carbon environment-friendly, and existing plywood production line is transformed a little and can be realized industrialization production.
(2) the prepared nonwoven of the present invention strengthens laminated veneer lumber, take by 9 layers of veneer and 8 layers of non-woven fabric compounded forms and product that thickness is 21mm is example, its specific performance index: moisture content 6 ~ 14%, 1/3 of arbitrary limit this limit tree lace length of tree lace strip length < of test specimen same layer glue-line; Burst size of methanal < 1.2mg/L, MOR >=20.8MPa, elastic modelling quantity >=7200 MPa, is particularly suitable as that decoration bar section base material maybe needs certain load bearing requirements but the occasion that do not reach structure instructions for use is used.
The specific embodiment
Embodiment 1
1) by rotary-cut Eucalyptus veneer drying to moisture content, be 8%; 2) get thickness be 1.3mm veneer as dash board, thickness is that 2.6mm veneer is central layer; 3) getting is quantitatively 40 g/m
2pP nonwoven; 4) nonwoven upper and lower surface is by adopting titanate coupling agent to process, and coupling agent consumption is 0.5% of non-woven fabrics quality umber; 5) for dash board, urea-formaldehyde resin adhesive (UF) carries out gluing, to the loose side single spreading amount of dash board, is 130g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 280 g/m
2, blanket glued veneer carries out ageing 15min; 6) get blanket glued veneer and carry out rift grain assembly, between adjacent veneer, add the nonwoven of processing through step 4) simultaneously; Outside the dash board of composition slab tightly faces; 7) slab carries out precompressed processing, and the time is 20min, and pressure is 1.1MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 115 ℃ of hot pressing temperatures, and under 1.3MPa pressure, hot pressing time is 1.3min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
Embodiment 2
1) rotary-cut board using poplar board being dried to moisture content is 8%; 2) learn from else's experience the thickness of step 1) be 1.6mm veneer as dash board, thickness is that 2.5mm veneer is central layer; 3) getting is quantitatively 25 g/m
2pP nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting aluminate coupling agent to process, coupling agent consumption is 0.5% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 150g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 260 g/m
2, blanket glued veneer carries out ageing 20min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 20min, and pressure is 1.1 MPa; 8) slab is moved to hot press and carry out hot pressing, 135 ℃ of hot pressing temperatures, under 1.3MPa pressure, hot pressing time is 1.2min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
Embodiment 3
1) by rotary-cut Eucalyptus veneer drying to moisture content, be 8%; 2) learn from else's experience the thickness of step 1) be 1.3mm veneer as dash board, thickness is that 2.6mm veneer is central layer; 3) getting is quantitatively 25 g/m
2pET nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting silane coupler to process, coupling agent consumption is 0.5% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 180g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 300 g/m
2, blanket glued veneer carries out ageing 15min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 30min, and pressure is 0.8 MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 120 ℃ of hot pressing temperatures, and under 1.3MPa pressure, hot pressing time is 1.2min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
Embodiment 4
1) by rotary-cut Eucalyptus veneer drying to moisture content, be 9%; 2) learn from else's experience the thickness of step 1) be 1.6mm veneer as dash board, thickness is that 2.6mm veneer is central layer; 3) getting is quantitatively 35 g/m
2pVC nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting silane coupler to process, coupling agent consumption is 1.2% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 130g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 330 g/m
2, blanket glued veneer carries out ageing 10min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 25min, and pressure is 1.0 MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 125 ℃ of hot pressing temperatures, and under 1.3MPa pressure, hot pressing time is 1.2min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
Embodiment 5
1) by rotary-cut Eucalyptus veneer drying to moisture content, be 10%; 2) learn from else's experience the thickness of step 1) be 1.5mm veneer as dash board, thickness is that 2.6mm veneer is central layer; 3) getting is quantitatively 30 g/m
2pVC nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting aluminate coupling agent to process, coupling agent consumption is 1.1% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 140g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 280 g/m
2, blanket glued veneer carries out ageing 15min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 20min, and pressure is 1.1MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 135 ℃ of hot pressing temperatures, and under 1.2MPa pressure, hot pressing time is 1.6min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.(in the 0.8 scope 1.2-1.6Mpa not giving in claim)
Embodiment 6
1) rotary-cut board using poplar board being dried to moisture content is 9%; 2) learn from else's experience the thickness of step 1) be 1.4mm veneer as dash board, thickness is that 2.8mm veneer is central layer; 3) getting is quantitatively 45 g/m
2pET nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting aluminate coupling agent to process, coupling agent consumption is 0.9% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 180g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 280 g/m
2, blanket glued veneer carries out ageing 15min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 20min, and pressure is 1.1MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 100 ℃ of hot pressing temperatures, and under 1.3MPa pressure, hot pressing time is 1.3min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.(1.6 min/mm are not also in scope)
Embodiment 7
1) by rotary-cut Eucalyptus veneer drying to moisture content, be 9%; 2) learn from else's experience the thickness of step 1) be 1.5mm veneer as dash board, thickness is that 2.5mm veneer is central layer; 3) getting is quantitatively 45 g/m
2pP nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting aluminate coupling agent to process, coupling agent consumption is 0.9% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 130g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 280 g/m
2, blanket glued veneer carries out ageing 15min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 20min, and pressure is 1.1MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 125 ℃ of hot pressing temperatures, and under 1.6MPa pressure, hot pressing time is 0.8min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
Embodiment 8
1) rotary-cut Eucalyptus veneer and board using poplar board being dried to moisture content is 9%; 2) learn from else's experience the thickness of step 1) be 1.3mm poplar veneer as dash board, thickness is that 2.6mm Eucalyptus veneer is central layer; 3) getting is quantitatively 50 g/m
2pVC nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting silane coupler to process, coupling agent consumption is 1.1% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 110g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 240 g/m
2, blanket glued veneer carries out ageing 12min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 20min, and pressure is 1.1MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 125 ℃ of hot pressing temperatures, and under 1.2MPa pressure, hot pressing time is 1.3min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
Embodiment 9
1) rotary-cut Eucalyptus veneer and board using poplar board being dried to moisture content is 9%; 2) learn from else's experience the thickness of step 1) be 1.6mm poplar veneer as dash board, thickness is that 2.7mm Eucalyptus veneer is central layer; 3) getting is quantitatively 35 g/m
2pVC nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting metatitanic acid coupling agent treatment, coupling agent consumption is 1.5% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 150g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 290 g/m
2, blanket glued veneer carries out ageing 12min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 25min, and pressure is 1.1MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 115 ℃ of hot pressing temperatures, and under 1.3MPa pressure, hot pressing time is 1.3min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
Embodiment 10
1) rotary-cut Eucalyptus veneer and board using poplar board being dried to moisture content is 9%; 2) learn from else's experience the thickness of step 1) be 1.3mm poplar veneer as dash board, thickness is that 2.8mm Eucalyptus veneer is central layer; 3) getting is quantitatively 30 g/m
2pP nonwoven; 4) get step 3) nonwoven upper and lower surface by adopting metatitanic acid coupling agent treatment, coupling agent consumption is 0.8% of non-woven fabrics quality umber; 5) urea-formaldehyde resin adhesive for dash board (UF) step 2 of learning from else's experience) carries out gluing, to the loose side single spreading amount of dash board, is 145g/m
2; The step 2 of learning from else's experience) urea-formaldehyde resin adhesive for central layer (UF) carries out gluing, and double spread amount is 310 g/m
2, blanket glued veneer carries out ageing 18min; 6) the learn from else's experience veneer of step 5) carries out rift grain assembly, adds the nonwoven through step 4) between adjacent veneer simultaneously; Outside the dash board of composition slab tightly faces; 7) slab of getting step 6) carries out precompressed processing, and the time is 30min, and pressure is 1.1MPa; 8) slab of getting step 7) moves to hot press and carries out hot pressing, 105 ℃ of hot pressing temperatures, and under 1.2MPa pressure, hot pressing time is 1.2min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
It should be noted that: 1) the present invention adopts is that to take poplar, Eucalyptus veneer be raw material, and in order to widen raw material range, can adopt other former veneers is that raw material is produced nonwoven enhancement mode laminated veneer lumber by adding the compound assemble pattern of nonwoven.2) the present invention adopts polypropylene fibre (PP, polypropylene) nonwoven, polyvinyl chloride fibre (PVC, polyvinyl chloride) nonwoven, terylene (PET, polyester) nonwoven, is main nonwoven on market, and intensity is better simultaneously.The nonwoven of other compositions is applicable equally.3) physical and mechanical property that adopts other adhesives such as phenolic resin glue, isocyanate glue to substitute urea-formaldehyde resin adhesive production nonwoven enhancement mode laminated veneer lumber section product increases.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (5)
1. the manufacture method as the nonwoven enhancement mode laminated veneer lumber of decoration bar section base material, it is characterized in that: take veneer, nonwoven is raw material, veneer is through gluing processing, nonwoven after coupling agent treatment, and assembly, then makes nonwoven enhancement mode laminated veneer lumber through heat pressing process.
2. the manufacture method of the nonwoven enhancement mode laminated veneer lumber as decoration bar section base material according to claim 1, is characterized in that: described veneer is one or both in Eucalyptus veneer, board using poplar board.
3. the manufacture method of the nonwoven enhancement mode laminated veneer lumber as decoration bar section base material according to claim 1, is characterized in that: described nonwoven is one or more in polypropylene fibre, polyvinyl chloride fibre, terylene.
4. the manufacture method of the nonwoven enhancement mode laminated veneer lumber as decoration bar section base material according to claim 1, is characterized in that: described coupling agent is one or more of silane coupler, titanate coupling agent, aluminate coupling agent.
5. the manufacture method of the nonwoven enhancement mode laminated veneer lumber as decoration bar section base material according to claim 1, is characterized in that: comprise the following steps:
(1) Eucalyptus veneer or board using poplar board being dried to moisture content is 8 ~ 10%;
(2) choose thickness be the veneer of 1.2 ~ 1.6mm as dash board, the veneer that thickness is 1.8 ~ 2.8mm is central layer;
(3) nonwoven upper and lower surface is adopted to coupling agent treatment, coupling agent consumption is 0.5 ~ 1.5% of nonwoven weight;
(4) with urea-formaldehyde resin adhesive, the one side of dash board is carried out to gluing, glue-spread is 110 ~ 180 g/m
2, the two-sided gluing that carries out with urea-formaldehyde resin adhesive to central layer, glue-spread is 240 ~ 330 g/m
2;
(5) by blanket glued veneer ageing 10 ~ 20min;
(6), using dash board as ground floor, coated face adds nonwoven, then add central layer successively, nonwoven, by rift grain assembly, to the thickness needing, finally add dash board, dash board not coated face, obtains slab outwardly;
(7) slab is carried out to precompressed processing, the time is 20 ~ 30min, and pressure is 0.8 ~ 1.1 MPa;
(8) slab of processing through step (7) is moved to hot press and carry out hot pressing, 100 ~ 135 ℃ of hot pressing temperatures, hot pressing pressure is 1.2 ~ 1.6MPa, hot pressing time is 0.8 ~ 1.3min/mm; After hot pressing completes, step-down is unloaded plate and is obtained nonwoven enhancement mode laminated veneer lumber.
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| CN104946179A (en) * | 2015-06-12 | 2015-09-30 | 柳州市骏马木业有限公司 | Preparation method of environment-friendly eucalyptus plywood |
| CN107364275A (en) * | 2017-08-09 | 2017-11-21 | 广西大学 | A kind of preparation method of timber batik product |
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| CN103692502B (en) | 2015-11-18 |
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Denomination of invention: Production method for non-woven fabric enhanced laminated veneer lumber used as decorative profile base materials Effective date of registration: 20161027 Granted publication date: 20151118 Pledgee: Nanping Fujian rural commercial bank Limited by Share Ltd Pledgor: Arbor industry Co., Ltd of unit of Nanping city in Fujian Registration number: 2016350000121 |
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Date of cancellation: 20170714 Granted publication date: 20151118 Pledgee: Nanping Fujian rural commercial bank Limited by Share Ltd Pledgor: Arbor industry Co., Ltd of unit of Nanping city in Fujian Registration number: 2016350000121 |