CN102615685A - Integrated processing method for realizing flame retarding, hardening and wear resisting for fast-growing wood - Google Patents
Integrated processing method for realizing flame retarding, hardening and wear resisting for fast-growing wood Download PDFInfo
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- CN102615685A CN102615685A CN2012101234568A CN201210123456A CN102615685A CN 102615685 A CN102615685 A CN 102615685A CN 2012101234568 A CN2012101234568 A CN 2012101234568A CN 201210123456 A CN201210123456 A CN 201210123456A CN 102615685 A CN102615685 A CN 102615685A
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Abstract
The invention discloses an integrated processing method for realizing flame retarding, hardening and wear resisting for fast-growing wood. The method comprises the following specific steps of: (1) processing a fast-growing wood raw material into square wood or boards, putting the square wood or boards in a drying kiln to dry and carrying out microwave processing in a microwave processing chamber; and (2) delivering aqueous suspension of nano aluminum hydroxide and a silane coupling agent to a pressurizing impregnation tank, immersing the wood, subjected to the treatment in (1), in the aqueous suspension of the nano aluminum hydroxide and the silane coupling agent, covering a top cover of the impregnation tank, carrying out pressurizing treatment, then relieving pressure, opening the top cover of the impregnation tank, taking out the wood and drying in the drying kiln. After the fast-growing wood is subjected to the treatment according to the invention, the flame-retarding grade reaches the grade B1; the parallel-to-grain compressive strength of the fast-growing wood is 62.1MPa, the lateral hardness is 7965N, the end hardness is 8804N and the abrasion resistance reaches WR2 (not less than 5000r).
Description
Technical field
The invention belongs to the lumber functionality improvement field, be specifically related to that a kind of fast growing wood is fire-retardant to increase hard wear-resisting integral treatment method.
Background technology
There is inflammable problem in timber, and many fire take place and spread all directly related with wood material.In addition, compare with materials such as stone materials with other metal, timber (particularly fast growing wood) density is little, self hardness, wears no resistance, and has limited its application., hardness inflammable to timber and the bad shortcoming of wearability, people have carried out many fire-retarding of wood and have increased hard research, have obtained some achievements.But conventional fire-retarding of wood processing and timber increase hard processing and normally separately carry out, and treatment process is loaded down with trivial details, and efficient is low.And fire-retarding of wood is handled and is increased in the hard processing procedure, and fire retardant is difficult to the degree of depth, and to get into timber inner, and fire retardant is at the inner skewness of timber, and fire retardant is prone to run off with to increase the adhesive force of hard agent in timber little, and treatment effect has certain ageing.Therefore; Select the medicament of potion multiple-effect,, carry out fire-retarding of wood and increase hard wear-resisting integrated Processing Technology Research through certain physical, chemical treatment method; Realize fire-retarding of wood, increase the efficiently compound of hard, wear-resisting functions, it is very necessary to significantly improve the timber added value.
Summary of the invention
The technical problem that the present invention solved is to provide that a kind of fast growing wood is fire-retardant increases hard wear-resisting integral treatment method; This method is handled fast growing wood through high-intensity microwave, makes the inner high temperature that produces rapidly of the fast growing wood with certain moisture content, and high temperature impels the moisture of fast growing wood lumen to vaporize rapidly, produces higher vapour pressure.Form micropore at the fast growing wood cell membrane in the process of vapour pressure outwash, thereby improve the permeability of fast growing wood greatly.Then, carrying out pressure impregnating in the water slurry with immersion nano-aluminum hydroxide of the fast growing wood after the microwave treatment and silane coupler handles.Because the fast growing wood after microwave treatment is handled has good penetration property; It is inner that nano-aluminum hydroxide particle and silane coupler are easy to get into fast growing wood through the micropore on the fast growing wood cell membrane; Silane coupler plays a part parents' agent; Can nano-aluminum hydroxide and timber be coupled together closely, improve nano-aluminum hydroxide, avoid producing in processing and the use and run off in inner " implantation " power of timber.Aluminium hydroxide is a kind of environment-friendly highly efficient fire retardant, and has stronger wearability.The nanoscale aluminum hydroxide particles; Through the entering of the micropore on cell membrane timber inside and attached on the wood cell wall; Both play fabulous fire retardation, and can play fast growing wood and increase hard effect, improved fast growing wood hardness and wearability; Therefore, can reach fast growing wood highly effective flame-retardant and the stack and the coupling that increase hard wear-resisting functions through above-mentioned processing.
The technical problem that the present invention solved adopts following technical scheme to realize:
A kind of fast growing wood is fire-retardant to increase hard wear-resisting integral treatment method, and concrete steps are following:
(1) the fast growing wood raw material is processed into square bar or the sheet material that thickness is 10～200mm; Placing drying kiln for drying then is 22%～30% to moisture content; Place the indoor microwave treatment of carrying out of microwave treatment again, processing power is 10～30KW, and the processing time is 20～60s;
(2) elder generation is delivered to the pressure impregnating jar with the aqueous suspension of nano-aluminum hydroxide and silane coupler; To pass through the timber of (1) handling again is immersed in the aqueous suspension of nano-aluminum hydroxide and silane coupler; Cover the immersion can top cover; Pressurized treatments, pressure are 0.6～1.2MPa, and the pressure impregnating time is 20～40min; The immersion can top cover is opened in release then, and timber is taken out, and placing drying kiln for drying again is 8%～12% to moisture content.
Being delivered to the timber of pressure impregnating jar and the mass ratio of aqueous suspension in the step (2) is 1:20.
The preparation method of the aqueous suspension of said nano-aluminum hydroxide and silane coupler is: nano-aluminum hydroxide powder and silane coupler are poured in the container that has agitator that 25～35 ℃ of hot water are housed; Turn on agitator; Rotating speed 1000r/min stirs 8～12min, can make.
Said water, nano-aluminum hydroxide and silane coupler mass ratio are 100:20:0.5.
Beneficial effect:All adhered to uniform nano-aluminum hydroxide particle inside and outside the wood cell wall that utilizes the present invention to handle, had fire resistance significantly, simultaneously, the nano-aluminum hydroxide particle has played the extremely strong hard effect that increases in timber, and the hardness of wood and wearability obviously improve.Simultaneously; Owing to added silane coupler; Nano-aluminum hydroxide " implantation " power on wood cell wall improves greatly, can not occur fire retardant and the loss that increases hard anti-wear agent in the timber use basically, and fast growing wood fire resistance, hardness and wearability can in use not reduce.Utilize the fast growing wood flame retardant rating after this inventive method is handled to reach the B1 level, fast growing wood parallel-to-grain compressive strength 62.1MPa, side hardness 7965N, end hardness 8804N, anti-wear performance reach WR2 (>=5000r).
Description of drawings
Fig. 1 increases hard wear-resisting integrated process chart for fast growing wood is fire-retardant.
The specific embodiment
Be easy to understand and understand in order to make technological means of the present invention, creation characteristic, workflow, method for using reach purpose and effect,, further set forth the present invention below in conjunction with concrete diagram.
As shown in Figure 1, the fire-retardant wear-resisting integrated process chart firmly that increases of fast growing wood all can be handled the fast growing wood that obtains having highly effective flame-retardant He increase hard wear-resisting functions according to this flow chart for various fast growing woods.
Embodiment 1
(1) quick growth poplar wood side's (plate) material processing: it is square bar or the sheet material of 80mm that the Wood Processing of fresh cut is become thickness;
(2) quick growth poplar wood side's (plate) material is dry: it is 24% to moisture content that flitch (plate) material is sent into drying kiln for drying;
(3) high-strength microwave treatment: the timber that drying is good is delivered to the microwave treatment chamber and is carried out microwave treatment; Processing power is 10KW, and the processing time is 50s;
(4) aqueous suspension of preparation of nano aluminium hydroxide and silane coupler: certain amount of nano aluminium-hydroxide powder and silane coupler are poured in the container that has agitator that 30 ℃ of hot water are housed; Turn on agitator; Rotating speed 1000r/min; Stir 10min, make the aqueous suspension of nano-aluminum hydroxide and silane coupler; Wherein water, nano-aluminum hydroxide and silane coupler mass ratio are 100:20:0.5;
(5) pressure impregnating is handled: pour the aqueous suspension of nano-aluminum hydroxide for preparing and silane coupler into the pressure impregnating jar, with in the timber submergence aqueous suspension, cover the immersion can top cover, pressurized treatments again; Pressure is 0.8MPa, and the pressure impregnating time is 30min; Timber and aqueous suspension mass ratio are 1:20;
(6) dried: release, open the immersion can top cover, the timber of pressure impregnating is taken out from immersion can, send into lumber kiln then, adopt conventional method for drying wood to carry out dried, moisture content is reached about 10%.
Embodiment 2
(1) speed is given birth to Eucalyptus side's (plate) material processing: it is square bar or the sheet material of 150mm that the Wood Processing of fresh cut is become thickness;
(2) it is dry that speed is given birth to Eucalyptus side's (plate) material: it is 27% to moisture content that flitch (plate) material is sent into drying kiln for drying;
(3) high-strength microwave treatment: the timber that drying is good is delivered to the microwave treatment chamber and is carried out microwave treatment; Processing power is 25KW, and the processing time is 40s;
(4) aqueous suspension of preparation of nano aluminium hydroxide and silane coupler: certain amount of nano aluminium-hydroxide powder and silane coupler are poured in the container that has agitator that 30 ℃ of hot water are housed; Turn on agitator; Rotating speed 1000r/min; Stir 10min, make the aqueous suspension of nano-aluminum hydroxide and silane coupler; Water, nano-aluminum hydroxide and silane coupler mass ratio are 100:20:0.5;
(5) pressure impregnating is handled: pour the aqueous suspension of nano-aluminum hydroxide for preparing and silane coupler into the pressure impregnating jar, with in the timber submergence aqueous suspension, cover the immersion can top cover, pressurized treatments again; Pressure is 1MPa, and the pressure impregnating time is 40min; Timber and aqueous suspension mass ratio are 1:20;
(6) dried: release, open the immersion can top cover, the timber of pressure impregnating is taken out from immersion can, send into lumber kiln then, adopt conventional method for drying wood to carry out dried, moisture content is reached about 10%.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. a fast growing wood is fire-retardant increases hard wear-resisting integral treatment method, it is characterized in that concrete steps are following:
(1) the fast growing wood raw material is processed into square bar or the sheet material that thickness is 10～200mm; Placing drying kiln for drying then is 22%～30% to moisture content; Place the indoor microwave treatment of carrying out of microwave treatment again, processing power is 10～30KW, and the processing time is 20～60s;
(2) elder generation is delivered to the pressure impregnating jar with the aqueous suspension of nano-aluminum hydroxide and silane coupler; To pass through the timber of (1) handling again is immersed in the aqueous suspension of nano-aluminum hydroxide and silane coupler; Cover the immersion can top cover; Pressurized treatments, pressure are 0.6～1.2MPa, and the pressure impregnating time is 20～40min; The immersion can top cover is opened in release then, and timber is taken out, and placing drying kiln for drying again is 8%～12% to moisture content.
2. a kind of fast growing wood according to claim 1 is fire-retardant to increase hard wear-resisting integral treatment method, it is characterized in that being delivered to the timber of pressure impregnating jar and the mass ratio of aqueous suspension in the step (2) is 1:20.
3. a kind of fast growing wood according to claim 1 is fire-retardant to increase hard wear-resisting integral treatment method; It is characterized in that; The preparation method of the aqueous suspension of said nano-aluminum hydroxide and silane coupler is: pour in the container that has agitator that 25～35 ℃ of hot water are housed nano-aluminum hydroxide powder and silane coupler into turn on agitator, rotating speed 1000r/min; Stir 8～12min, promptly make.
4. a kind of fast growing wood according to claim 3 is fire-retardant to increase hard wear-resisting integral treatment method, it is characterized in that said water, nano-aluminum hydroxide and silane coupler mass ratio are 100:20:0.5.
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Cited By (6)
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| CN102873724A (en) * | 2012-10-15 | 2013-01-16 | 安徽农业大学 | Nanometer hydroxide wood composite material and preparation method thereof |
| CN102995141A (en) * | 2012-10-25 | 2013-03-27 | 郭荣才 | Bamboo fiber |
| CN105583926A (en) * | 2014-10-21 | 2016-05-18 | 贾超 | Timber modification agent and preparation method thereof |
| CN107457858A (en) * | 2017-08-30 | 2017-12-12 | 常州市天宁区鑫发织造有限公司 | A kind of particieboard fire retardant |
| CN107901161A (en) * | 2017-11-24 | 2018-04-13 | 徐州得铸生物科技有限公司 | A kind of nano-compound modified wood of garden landscape |
| CN110605767A (en) * | 2019-10-25 | 2019-12-24 | 毛克升 | Wear-resistant treatment method for Chinese fir |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873724A (en) * | 2012-10-15 | 2013-01-16 | 安徽农业大学 | Nanometer hydroxide wood composite material and preparation method thereof |
| CN102873724B (en) * | 2012-10-15 | 2014-10-29 | 安徽农业大学 | Nanometer hydroxide wood composite material and preparation method thereof |
| CN102995141A (en) * | 2012-10-25 | 2013-03-27 | 郭荣才 | Bamboo fiber |
| CN102995141B (en) * | 2012-10-25 | 2014-06-18 | 郭荣才 | Bamboo fiber |
| CN105583926A (en) * | 2014-10-21 | 2016-05-18 | 贾超 | Timber modification agent and preparation method thereof |
| CN105583926B (en) * | 2014-10-21 | 2017-11-07 | 贾超 | A kind of Wooden modifying decoction and preparation method |
| CN107457858A (en) * | 2017-08-30 | 2017-12-12 | 常州市天宁区鑫发织造有限公司 | A kind of particieboard fire retardant |
| CN107901161A (en) * | 2017-11-24 | 2018-04-13 | 徐州得铸生物科技有限公司 | A kind of nano-compound modified wood of garden landscape |
| CN110605767A (en) * | 2019-10-25 | 2019-12-24 | 毛克升 | Wear-resistant treatment method for Chinese fir |
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| CN102615685B (en) | 2015-05-06 |
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Inventor after: Li Xingong Inventor after: Duan Jiabao Inventor after: Li Xianjun Inventor after: Wu Yiqiang Inventor after: Zheng Xia Inventor before: Li Xingong Inventor before: Li Xianjun Inventor before: Wu Yiqiang Inventor before: Zheng Xia |
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Effective date of registration: 20170904 Address after: Lu Miao village the Yanghe River town Pingqiao District Xinyang city Henan province 464000 Hengshun Paper No. 1 Patentee after: Henan Hengshun plant fiber board Co. Ltd. Address before: 410000 Shaoshan South Road, Hunan, No. 498, No. Patentee before: Central South University of Forestry and Technology |