CN106182327A - A kind of zero formaldehyde bamboo shaving plate and preparation method thereof - Google Patents
A kind of zero formaldehyde bamboo shaving plate and preparation method thereof Download PDFInfo
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- CN106182327A CN106182327A CN201610545050.7A CN201610545050A CN106182327A CN 106182327 A CN106182327 A CN 106182327A CN 201610545050 A CN201610545050 A CN 201610545050A CN 106182327 A CN106182327 A CN 106182327A
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- bamboo shaving
- unsaturated polyester
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- polyester resin
- bamboo
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
- C09J167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The present invention relates to a kind of zero formaldehyde bamboo shaving plate and preparation method thereof, the raw material composition of this bamboo shaving plate is calculated by weight as: bamboo shaving 100 parts, modified unsaturated polyester resin 6 20 parts, surface conditioning agent 0.01 2 parts and water-proofing agent 0.5 2 parts.The present invention utilizes modified unsaturated polyester resin as adhesive and to carry out bamboo shaving surface processing preparation zero formaldehyde bamboo shaving plate, prepared bamboo shaving plate is without formaldehyde, the water resistance of sheet material is good, mechanical property is high, paint adhesion is good, on existing dry method bamboo shaving board assembly line, transformation can realize industrialization a little, can efficiently solve the formaldehyde pollution problem in living space, break away from Form aldehyde release problem for wood-based panel product and provide new solution route.
Description
Technical field
The invention belongs to field of material preparation, be more particularly to a kind of zero formaldehyde bamboo shaving plate and preparation method thereof.
Background technology
Along with living standard improves, people are more and more higher to the requirement of IAQ (indoor air quality).House decoration sheet material and furniture
Sheet material source major part is three big plates, i.e. fibre board, particieboard and plywood.They mixed compacting with adhesive by bamboo timber and
Become, in use can slowly release formaldehyde, cause room air pollution, affect resident healthy, be chronically at first
Even can cause cancer in the environment that aldehyde concentration is high.Over more than 100 year, it is attempted to eliminate the Form aldehyde release of urea aldehyde goods, produces effects
Little.Because of its corrosion resistant with low cost, water-fast, intensity is preferable, technique is simple, and social required quantity is continuously increased on the contrary, the year of China
Volume of production and demand are above million tons.Within 2015, national environmental protection portion is by three big plates and three big glue (urea-formaldehyde glue, phenol glues
With melamino-formaldehyde glue) list high pollution, high environmental risk register in, seriously constrain the development of wood-based plate.How to eliminate
Form aldehyde release affects, and ensures product quality simultaneously, is the bamboo timber industry problem that needs constantly to probe into.The collection of major part research at present
In with isocyanates as adhesive, it is achieved zero formaldehyde Wood-based Panel Production.Unlike particieboard, bamboo shaving density is big, simultaneously
The bamboo green grass or young crops part of bamboo wood is untreated, and hydrophobicity is relatively big, and in the case of with urea-formaldehyde glue as adhesive, internal bond strength is undesirable,
Mechanical property is poor.
Unsaturated polyester resin is one the most frequently used in thermosetting resin, be usually by unsaturated dibasic acid dihydroxylic alcohols or
The chain macromolecule compound with ester bond and unsaturated double-bond of person's monounsaturated dicarboxylic acid unsaturation dihydroxylic alcohols polycondensation, passes through
The resin solution with certain viscosity that cross-linking monomer or active solvent dilution are formed, is called for short UP.UP is characterized as that main chain contains-C=
C-double bond (except phenyl ring), can at room temperature solidify, normal pressure compacted under, and processing performance is flexible, is particularly suitable for large-scale and on-the-spot
Manufacture glass fiber reinforced plastics product.Resin good combination property after solidification, mechanical performance index is slightly below epoxy resin, but is better than phenolic aldehyde tree
Fat, has corrosion resistance.So far, the most adjacent benzene of unsaturated polyester (UP) (resin) matrix of matrices of composite material it is used as both at home and abroad
Diformazan acid type (being called for short adjacent benzene-type), M-phthalic acid type (abbreviation metaphenylene), bisphenol A-type and vinyl ester type, halo unsaturation
Polyester resin etc..Unsaturated polyester (UP), with the mechanical property of its excellence, is made into high-intensity plastic product, is not almost developed to
Artificial Plate Adhesive.Its main cause is, each constitutional repeating unit of the main component cellulosic molecule of bamboo and woods fiber contains
Three hydroxyls, make bamboo and woods fiber present strongly hydrophilic, highly polar and high-crystallinity, cause bamboo and woods fiber and hydrophobic insatiable hunger
With interface compatibility between polyester (UPR) is poor.This is also that restriction bamboo and woods fiber/unsaturated polyester composite performance improves
One of critical problem.Unsaturated polyester (UP) and bamboo shaving direct heat of mixing pressboard, although have good MOR and
Elastic modelling quantity, but internal bond strength and water proofing property are the most poor.The present invention by bamboo fibre surface modification, improve bamboo fibre and
The compatibility of unsaturated polyester (UP), and then promote bamboo shaving plate performance, be up to state standards requirement.
The disclosure of the invention of Publication No. " the CN 104290169 A " production technology of a kind of zero formaldehyde density fiber board, with
'-diphenylmethane diisocyanate MDI is adhesive, but the method need to use releasing agent, brings tired for the processing of later stage sheet material japanning
Difficulty, impact uses.
Summary of the invention
It is an object of the invention to provide a kind of zero formaldehyde bamboo shaving plate and preparation method thereof.With modified unsaturated polyester tree
Fat is adhesive, develops novel not release formaldehyde, the bamboo shaving plate of superior performance, and in existing Flakeboard Product Line i.e.
Can realize industrialization, economical, societal benefits are notable, wide market.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of zero formaldehyde bamboo shaving plate, its raw material composition is calculated as by weight: bamboo shaving 100 parts, modified unsaturated polyester resin
6-20 part, surface conditioning agent 0.01-2 part and water-proofing agent 0.5-2 part.
The raw material composition of described modified unsaturated polyester resin is calculated as by weight: unsaturated polyester resin 100 parts, have
Machine peroxide 0.1-5 part, accelerator 0.01-3 part and coupling agent 0.7-3 part.
Described unsaturated polyester resin is general commercial unsaturated polyester resin, and main chain contains-C=C-double bond, and (phenyl ring removes
Polyester outward) is dissolved in the solution formed with styrene or other organic reagents containing-C=C-double bond, and unsaturated polyester (UP) quality is divided
Number is 60-80%；Described organic peroxide is hydroperoxides, dialkyl peroxide, diacyl peroxide, peroxide
One or more in ester, peroxycarbonates and ketone peroxide；Described accelerator is ring cobalt octoate or tertiary amines
Compound；Described coupling agent is one or both in silane coupler and titanate coupling agent.Organic peroxide is as certainly
By base initiator, unsaturated polyester resin polymerizing curable under hot pressing, is caused to prepare bamboo shaving plate.
Described surface conditioning agent is maleic anhydride, isocyanates, epoxychloropropane, Acetolon, novolac solution and fluorine carbon
One or more in surfactant.
Described water-proofing agent is one or more in paraffin, zinc stearate and magnesium stearate.
The preparation method of a kind of zero formaldehyde bamboo shaving plate, specifically comprises the following steps that
(1) use surface conditioning agent that bamboo shaving is processed；
(2) step (1) gained bamboo shaving is dried to moisture content be 3-12wt%, applying glue modified unsaturated polyester resin, add resistance to
Water preparation；
(3) by step (2) gained bamboo shaving after assembly, use continuous way hot press to carry out hot pressing and obtain zero described formaldehyde bamboo
Particieboard；
In described step (3), hot pressing temperature is 120-220 DEG C, and hot pressing pressure is unit pressure 2.5-10MPa, hot pressing factor 20-
60s/mm。
Described preparation method is also applied to the Wood-based Panel Production that fiber-like material is raw material, as with straw, fiber crops, bagasse
Wood-based Panel Production for raw material.
The beneficial effects of the present invention is:
Zero formaldehyde bamboo shaving plate obtained by the present invention, has formaldehyde " zero " feature such as burst size, excellent in mechanical performance, it is not necessary to change
Making existing bamboo shaving board assembly line and can realize industrialization production, the formaldehyde efficiently solving living environment ornament furnishings material is dirty
Dye problem, breaks away from Form aldehyde release problem for wood-based panel product and provides new solution route.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described, but the present invention is not limited only to these embodiments.
Embodiment 1
100 parts of bamboo shavings are applied 1 part of surface conditioning agent (isocyanates mixes for 1:2 with mass ratio with maleic anhydride) and is dried
To moisture content 5wt%, spraying into modified unsaturated polyester resin 6 parts, the raw material of described modified unsaturated polyester resin forms by weight
Number is calculated as: unsaturated polyester resin 100 parts, tert-butyl hydroperoxide 1 part, ring cobalt octoate 1 part and 2 parts of (coupling agents of coupling agent
Mix with mass ratio 1:1 for silane coupler and titanate coupling agent), add 0.5 part of paraffin, assembly, temperature 120 DEG C, pressure
Under conditions of 10MPa, time 7min, hot pressing obtains the bamboo shaving plate that thickness is 12 mm.
Embodiment 2
100 parts of bamboo shavings are applied 0.01 part of surface conditioning agent (Acetolon mixes with mass ratio 3:1 with epoxychloropropane) and does
Dry to moisture content 12wt%, spray into modified unsaturated polyester resin 11 parts, the raw material composition of described modified unsaturated polyester resin is pressed
Parts by weight are calculated as: unsaturated polyester resin 100 parts, cumyl peroxide 0.1 part, ring cobalt octoate 0.01 part and coupling agent
0.7 part (coupling agent is that silane coupler and titanate coupling agent mix with mass ratio 2:5), adds 0.5 part of paraffin, and assembly is warm
Spend 200 DEG C, under conditions of pressure 4MPa, time 6min hot pressing obtain the bamboo shaving plate that thickness is 18mm.
Embodiment 3
100 parts of bamboo shavings are applied 1.5 parts of surface conditioning agents (isocyanates mixes for 1:2 with mass ratio with maleic anhydride) and does
Dry to moisture content 8wt%, spray into modified unsaturated polyester resin 13 parts, the raw material composition of described modified unsaturated polyester resin is pressed
Parts by weight are calculated as: unsaturated polyester resin 100 parts, methyl ethyl ketone peroxide 5 parts, ring cobalt octoate 2 parts and 3 parts of (couplings of coupling agent
Agent is that silane coupler and titanate coupling agent mix with mass ratio 2:1), add 1 part of paraffin, assembly, temperature 160 DEG C, pressure
Under conditions of 3MPa, time 5min, hot pressing obtains the bamboo shaving plate that thickness is 12 mm.
Embodiment 4
100 parts of bamboo shavings apply 1.5 parts of surface conditioning agents, and (novolac solution and fluorocarbon surfactant mix with mass ratio for 1:1
Close) and it is dried to moisture content 12wt%, spray into modified unsaturated polyester resin 18 parts, described modified unsaturated polyester resin former
Material composition is calculated by weight as: unsaturated polyester resin 100 parts, peroxy dicarbonate 2 parts, ring cobalt octoate 1 part and coupling
Agent 3 parts (coupling agent is that silane coupler and titanate coupling agent mix with mass ratio 1:2), adds 2 parts of paraffin, assembly, temperature
220 DEG C, under conditions of pressure 2.5MPa, time 9min hot pressing obtain the bamboo shaving plate that thickness is 12 mm.
Embodiment 5
100 parts of bamboo shavings are applied 2 parts of surface conditioning agents (isocyanates mixes for 1:2 with mass ratio with maleic anhydride) and is dried
To moisture content 3wt%, spraying into modified unsaturated polyester resin 20 parts, the raw material composition of described modified unsaturated polyester resin is by weight
Amount number is calculated as: unsaturated polyester resin 100 parts, benzoyl peroxide 1 part, diethylaniline 3 parts and 3 parts of (couplings of coupling agent
Agent is that silane coupler and titanate coupling agent mix with mass ratio 2:1), add 1 part of magnesium stearate, assembly, temperature 220 DEG C,
Under conditions of pressure 8MPa, time 9min, hot pressing obtains the bamboo shaving plate that thickness is 20 mm.
Embodiment 6
100 parts of bamboo shavings are applied 2 parts of surface conditioning agents (isocyanates mixes for 1:2 with mass ratio with maleic anhydride) and is dried
To moisture content 5wt%, spray into modified unsaturated polyester resin (unsaturated polyester resin and the new enanthic acid of peroxide 1,1-dimethyl-3-hydroxyl
Butyl ester, dimethylaniline, silane coupler, titanate coupling agent (mass ratio 100:1:3:3:1)) 20 parts, described modified insatiable hunger
It is calculated by weight as with the raw material of polyester resin composition: unsaturated polyester resin 100 parts, peroxide new enanthic acid 1,1-dimethyl-
(coupling agent is that silane coupler and titanate coupling agent are with mass ratio for 3-hydroxy butyl ester 1 part, dimethylaniline 3 parts and coupling agent 3 parts
2:1 mixes), add 1 part of zinc stearate, assembly, under conditions of temperature 220 DEG C, pressure 6MPa, time 4min, hot pressing obtains thickness
It it is the bamboo shaving plate of 6 mm.Described number is weight portion.
Performance test
The zero formaldehyde bamboo shaving panel products that above-described embodiment prepares, its main performance index: density 0.55-1.0 g/cm3, formaldehyde
Burst size is 0 mg/100g, elastic modelling quantity 2500-5000MPa, MOR 15-25MPa, internal bond strength 0.45-1.5,2h
Thickness swelling rate 2-6%, moisture content 4-10%.Table 1 is above-described embodiment products obtained therefrom the performance test results.Product has nothing
Form aldehyde release, the characteristic such as excellent in mechanical performance, comply with the national standard requirements, can be widely used for interior decoration, furniture processing etc..
Table 1 zero formaldehyde bamboo shaving plate the performance test results
Above-mentioned bamboo shaving plate sample 1,2,3 is respectively the product that embodiment 1,2,3 method prepares.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modify, all should belong to the covering scope of the present invention.
Claims (9)
1. a formaldehyde bamboo shaving plate, it is characterised in that: the raw material composition of described bamboo shaving plate is calculated as by weight: bamboo shaving
100 parts, modified unsaturated polyester resin 6-20 part, surface conditioning agent 0.01-2 part and water-proofing agent 0.5-2 part.
Zero formaldehyde bamboo shaving plate the most according to claim 1, it is characterised in that: described modified unsaturated polyester resin
Raw material composition be calculated as by weight: unsaturated polyester resin 100 parts, organic peroxide 0.1-5 part, accelerator 0.01-3 part and
Coupling agent 0.7-3 part.
Zero formaldehyde oriented wood chipboard the most according to claim 2, it is characterised in that: described unsaturated polyester resin is main
Chain contains-C=C-double bond but polyester except phenyl ring is dissolved in and being formed with styrene or other organic reagents containing-C=C-double bond
Solution, unsaturated polyester (UP) mass fraction is 60-80%.
Zero formaldehyde bamboo shaving plate the most according to claim 2, it is characterised in that: described organic peroxide is hydrogen peroxide
One in compound, dialkyl peroxide, diacyl peroxide, peroxy esters, peroxycarbonates and ketone peroxide or
Person is multiple；Described accelerator is ring cobalt octoate or tertiary amine compounds；Described coupling agent is silane coupler and titanate esters
One or both in coupling agent.
Zero formaldehyde bamboo shaving plate the most according to claim 1, it is characterised in that: described surface conditioning agent is maleic acid
One or more in acid anhydride, isocyanates, epoxychloropropane, Acetolon, novolac solution and fluorocarbon surfactant.
Zero formaldehyde bamboo shaving plate the most according to claim 1, it is characterised in that: described water-proofing agent is paraffin, stearic acid
One or more in zinc and magnesium stearate.
7. the preparation method of a zero formaldehyde bamboo shaving plate as claimed in claim 1, it is characterised in that: specifically comprise the following steps that
(1) use surface conditioning agent that bamboo shaving is processed；
(2) step (1) gained bamboo shaving is dried to moisture content be 3-12wt%, applying glue modified unsaturated polyester resin, add resistance to
Water preparation；
(3) by step (2) gained bamboo shaving after assembly, use continuous way hot press to carry out hot pressing and obtain zero described formaldehyde bamboo
Particieboard.
The preparation method of zero formaldehyde bamboo shaving plate the most according to claim 7, it is characterised in that: heat in described step (3)
Pressure temperature is 120-220 DEG C, and hot pressing pressure is unit pressure 2.5-10MPa, hot pressing factor 20-60s/mm.
9. the preparation method of zero formaldehyde bamboo shaving plate described in a claim 7, it is characterised in that: described preparation method is applied to
Wood-based Panel Production with fiber-like material as raw material.
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| CN201610545050.7A CN106182327A (en) | 2016-07-12 | 2016-07-12 | A kind of zero formaldehyde bamboo shaving plate and preparation method thereof |
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| CN201610545050.7A CN106182327A (en) | 2016-07-12 | 2016-07-12 | A kind of zero formaldehyde bamboo shaving plate and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671217A (en) * | 2016-12-17 | 2017-05-17 | 浦北县建业胶合板有限责任公司 | Zero-formaldehyde plywood and preparation method thereof |
| CN115319875A (en) * | 2022-07-08 | 2022-11-11 | 浙江农林大学 | High-strength stable mildew-proof bamboo material and preparation method thereof |
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| CN115319875A (en) * | 2022-07-08 | 2022-11-11 | 浙江农林大学 | High-strength stable mildew-proof bamboo material and preparation method thereof |
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Application publication date: 20161207 |