CN103363284B - Comb composite bamboo and manufacture method thereof - Google Patents
Comb composite bamboo and manufacture method thereof Download PDFInfo
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Abstract
The invention discloses a kind of comb composite bamboo and manufacture method thereof, this comb composite bamboo is to make with bamboo wood for primary raw material, and surface is without visible gap, and density is 1.10g/cm3～1.40g/cm3, thickness swelling rate and water suction width expansion rate are respectively less than 2%.Manufacture method comprises the following steps: former bamboo is processed into bamboo chip, bamboo chip goes bamboo blue or green, fixed thick and rolls process, obtaining discongesting bamboo bundle；Process discongesting bamboo Shu Jinhang high-temperature-hot-water steaming and decocting, dry, high-temperature shaping and high-pressure injection plastic, obtain injecting glue bamboo bundle；Injecting glue bamboo bundle be dried, weave, assembly, sizing of colding pressing, obtain slab；It is heated slab solidifying, cooling down balance and post processing, obtains comb composite bamboo.The composite bamboo of the present invention has high density, high solidity and stronger weather-proof erosion resistance, and manufacture method is simple to operate, equipment investment is little, raw material sources are extensive.
Description
Technical field
The present invention relates to a kind of novel bamboo wood and machining manufacture thereof, particularly relate to a kind of with bamboo wood be main material comb high solidity composite bamboo and manufacture method.
Background technology
Comb is the indispensable daily living article in family.The good comb of quality generally requires possesses the advantages such as density is relatively big, feel is heavier, smooth surface.At present, the comb that China has good quality is nearly all adopt the precious timber that density is relatively big, color is deeper to make.Along with the awakening day by day reduced with people's environmental consciousness of rare tree timber, the source of comb making timber is day by day rare, it is therefore desirable to finds, develop new comb material.
China's bamboo grove area, accumulation and the bamboo output value all occupy first place in the world, and have the title of " bamboo kingdom ".According to statistics, existing bamboo grove area about 7,200,000 hm of China2, wherein Phyllostachys pubescens Mazei ex H.de Lebaie accounts for 70%.Compared with timber, bamboo wood has that intensity is big, good toughness, hardness are big, the graceful feature such as attractive in appearance of texture, is the desirable substitution material manufacturing high-grade comb.But meanwhile, bamboo wood has some natural defects and deficiency, and the density such as bamboo wood is relatively low, of light color, be fabricated to after comb feel gentlier, not thick and heavy, and the change of color is little；In addition, compared with timber, starch, glucide rich content in bamboo wood, if not being modified bamboo wood processing, the comb made in use is highly prone to antibacterial (such as mycete, rot fungi) and the invasion and attack of insect (such as Coptotermes formosanus Shtrari., timber beetle), has had a strong impact on its decorative effect and service life.Therefore, needs are employed new technology and bamboo wood are modified and restructuring process, density is relatively light, the color bamboo processing poor with rotproofness single, weather-proof becomes density and degree of compaction height, color-variable, the weather-proof comb composite bamboo strong with rotproofness, thus expanding bamboo wood application, improve its added value of product, solve the problem that high-grade comb manufacture material source is not enough simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, a kind of comb composite bamboo with high density, high solidity, high-flatness and stronger weather-proof erosion resistance is provided, correspondingly provide a kind of simple to operate, equipment investment is little, the manufacture method of raw material sources comb composite bamboo widely.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is a kind of comb composite bamboo, and described comb composite bamboo is to make with bamboo wood for primary raw material, and the density of described comb composite bamboo is 1.10g/cm3～1.40g/cm3, the thickness swelling rate of described comb composite bamboo is less than 2%, and water suction width expansion rate is less than 2%, and described comb composite bamboo surface is without visible gap, it is common that under natural light irradiation, perusal surface gaps when surface of test piece distance eyes 40cm.
Conceive as a total technology, present invention also offers a kind of manufacture method combed and use composite bamboo, comprise the following steps:
(1) former bamboo being processed into bamboo chip, the bamboo first removing bamboo chip is blue or green, then bamboo chip carries out fixed thick process and rolls process, obtaining discongesting bamboo bundle；
(2) bamboo Shu Jinhang high-temperature-hot-water steaming and decocting process is discongested to above-mentioned, then the bamboo bundle of discongesting after steaming and decocting being processed is dried, dried bamboo Shu Jinhang high-temperature shaping of discongesting is processed, then the bamboo Shu Jinhang high-pressure injection plastic of discongesting after high-temperature shaping process is processed, obtain injecting glue bamboo bundle；
(3) above-mentioned injecting glue bamboo bundle is dried, dried injecting glue bamboo bundle is woven well-thought-out plan bundle curtain, and be placed in a mould by bamboo bundle curtain after assembly to carry out and cold pressing that (usual pressure is 50MPa～80MPa in sizing, generally do not control pressure, but control the position of compression, as long as being compressed to appointment position, it is not necessary to pressurize), obtain slab；
(4) it is heated above-mentioned slab solidifying and cooling Balance Treatment, obtains sheet forming, sheet forming is carried out post processing, obtain comb composite bamboo.
Above-mentioned former bamboo generally selects 3～5 years setation bamboos, and the length of bamboo chip can select different length according to practical situation, controls at 1.9～2.0m generally according to die length.
In above-mentioned manufacture method, step (1) described bamboo chip is after fixed thickness processes, and along the length direction of bamboo chip, the thickness deviation of bamboo chip is less than 0.5mm；Described discongest bamboo bundle be longitudinally do not rupture, horizontal loose and staggered connected netted bamboo bundle, described in discongest in bamboo bundle the maximum gauge of contained bamboo Shu Danyuan less than 5mm.
In above-mentioned manufacture method, during described high-temperature-hot-water steaming and decocting processes, it is preferred to use the high-temperature-hot-water that temperature is 120 DEG C～140 DEG C discongests bamboo Shu Jinhang steaming and decocting, the preferred 0.5h～2.0h of digestion time to described.
In above-mentioned manufacture method, during described high-temperature shaping processes, it is preferred to use the normal pressure superheated vapour that temperature is 160 DEG C～200 DEG C discongests bamboo Shu Jinhang sizing, the preferred 0.5h～3.0h of shaping time to dried.
In above-mentioned manufacture method, the detailed process that described high-pressure injection plastic processes is as follows: is placed in high-pressure injection plastic tank and carries out initial vacuum process by the bamboo bundle of discongesting after high-temperature shaping, and vacuum degree control, at 0.06MPa～0.08MPa, keeps 10min～15min；After initial vacuum process terminates, with the phenolic resin adhesive that solid content is 35%～50% to discongesting bamboo Shu Jinhang high-pressure injection plastic in tank, injection pressure controls at 0.3MPa～0.6MPa, pressurize 8min～16min；After pressurize terminates, the bamboo Shu Jinhang final vacuum of discongesting of injecting glue being processed, vacuum degree control, at 0.04MPa～0.06MPa, keeps 10min～15min；After final vacuum process terminates, let out except the pressure in high-pressure injection plastic tank, obtain injecting glue bamboo bundle.
In above-mentioned manufacture method, it is preferred that discongesting bamboo bundle moisture content after drying described in step (2) is 8%～12%, and baking temperature is less than 100 DEG C；Injecting glue bamboo bundle moisture content after drying described in step (3) is 10%～16%, and baking temperature is less than 70 DEG C.
Preferred 0.5m～the 0.8m of distance in above-mentioned manufacture method, in described braiding process, it is preferred to use heat molten type tree lace is litzendraht wire, between adjacent heat molten type tree lace.
In above-mentioned manufacture method, the preferred 100mm～300mm of described width of plate slab, the preferred 100mm～400mm of slab thickness, the preferred 1.10g/cm of slab density3～1.40g/cm3。
In above-mentioned manufacture method, in step (4), it is preferred that described in the temperature that is heating and curing control at 130 DEG C～150 DEG C, the time of cure under pressure controls at 4h～10h；Described post processing include Mi Dui deposit, flush, plane limit and subdivision, wherein close preferably 10～20 days resting period of heap.
Compared with prior art, it is an advantage of the current invention that:
Instant invention overcomes that existing Recombined bamboo density is less, degree of compaction is relatively low, surface exists visible groove, silk in use easily occur to jump, mildew and the defect such as rotten; the comb composite bamboo of the present invention has that density is big, degree of compaction is high, surface is without the advantage such as visible groove, weather-proof rotproofness be strong; the manufacture for high-grade comb of the precious broad leaf tree timber can be substituted; significantly expand the application of bamboo wood goods; improve the added value of bamboo wood goods, advantageously reduce the consumption of precious broad leaf tree timber, economize on resources and preserve the ecological environment.Additionally, the manufacture method of comb composite bamboo of the present invention has the advantages such as simple to operate, equipment investment is little, raw material sources are extensive, be conducive to industrialization promotion and the application of comb composite bamboo.
Detailed description of the invention
Below in conjunction with concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
Embodiment 1:
The comb composite bamboo of a kind of present invention, is processed into bamboo wood for primary raw material, and the density of this comb composite bamboo is 1.20g/cm3, thickness swelling rate is 0.62%, and water suction width expansion rate is 1.3%, and the defects such as silk, without clearly visible gap, without visible groove, are jumped in the surface of this comb composite bamboo.
The manufacture method of the comb composite bamboo of a kind of above-mentioned the present embodiment, comprises the following steps:
(1) by 3～5 years setation bamboo (length is 17.5 meters) with some thick bamboo tubes that annular saw sawing is 1.9m length, with broken bamboo machine by bamboo chip that thick bamboo tube subdivision is 15 deciles, the long 1.9m of bamboo chip, then the bamboo green grass or young crops on bamboo chip surface is removed with bamboo strip splitting machine, with rough milling machine, the bamboo chip after removal bamboo green grass or young crops is carried out fixed thickness again to process, make bamboo chip thickness along its length basically identical, deviation is only smaller than 0.5mm(now bamboo chip without radian), with bamboo wood chaser, the bamboo chip after fixed thick process is rolled process again, roll bamboo chip to become and longitudinally do not rupture, laterally loose and staggered connected netted bamboo bundle, and bamboo Shu Danyuan maximum gauge is less than 5mm, obtain discongesting bamboo bundle.
(2) above-mentioned bamboo bundle of discongesting is placed in high temperature high pressure process tank, and the high-temperature-hot-water of 85 DEG C (can also be 80 DEG C～90 DEG C) is added in high temperature high pressure process tank through heat-exchanger pump, with the heater in high temperature high pressure process tank, high-temperature-hot-water is heated to 130 DEG C, bamboo bundle steaming and decocting 1.0h will be discongested in tank, pressure inside the tank is 0.3MPa, after steaming and decocting completes, take out and discongest bamboo bundle；With conventional steam dry kiln, by the bamboo bundle of discongesting after steaming and decocting, to be dried to moisture content be 9%, and the temperature of steam drying kiln controls at 90 DEG C；Dried bamboo bundle of discongesting is placed in high-temperature process kiln, with the normal pressure superheated vapour that temperature is 170 DEG C, the high-temperature shaping discongesting bamboo Shu Jinhang 2.0h is processed；Bamboo bundle of discongesting after high-temperature shaping is delivered in high-pressure injection plastic tank, processes discongesting bamboo Shu Jinhang initial vacuum, make the vacuum in high-pressure injection plastic tank reach 0.07MPa, and keep 12min；After initial vacuum process terminates, the phenolic resin adhesive that solid content is 40% is filled high-pressure injection plastic tank, and makes the pressure in high-pressure injection plastic tank reach 0.4MPa, pressurize 10min；After pressurize terminates, the bamboo Shu Jinhang final vacuum of discongesting of injecting glue is processed, makes the vacuum in high-pressure injection plastic tank reach 0.05MPa, keep 12min；After final vacuum process terminates, let out except the pressure in high-pressure injection plastic tank, obtain injecting glue bamboo bundle.
(3) be placed in conventional steam dry kiln being dried to moisture content by above-mentioned injecting glue bamboo bundle is 12%, and the temperature of steam drying kiln controls at 65 DEG C；Dried injecting glue bamboo bundle heat molten type tree lace is woven well-thought-out plan bundle curtain, and the distance between adjacent heat molten type tree lace is 0.5m；Weigh 171kg bamboo bundle curtain, it is put into assembly in the mould with locking device along die length direction, then the bamboo bundle curtain in mould colded pressing sizing with cold stamping die press, the target density of slab is controlled at 1.20g/cm3, after bamboo bundle curtain is compressed into target setting density (being namely compressed to slab thickness is 300mm), with steel plate and pin locking die, to prevent bounce-back from replying, obtaining slab, slab length is 1.9m, and width of plate slab is 250mm, and slab thickness is 300mm.
(4) above-mentioned slab together being sent into tunnel type together with mould and be heating and curing in equipment, the temperature that is heating and curing controls at 140 DEG C, and the process time is 8h, and be heating and curing rear natural cooling, obtains sheet forming；Sheet forming is carried out post processing, sheet forming is first placed in constant-temperature and constant humidity store, and (temperature is 25 DEG C, relative humidity is 65%) interior Mi Dui deposits 12 days, then sheet forming is longitudinally carried out flush, plane limit and subdivision with horizontal respectively, obtain being of a size of the comb composite bamboo of long 1.9m, wide 0.25m, thick 0.3m.
The comb composite bamboo thickness swelling rate of above-mentioned the present embodiment manufacture is 0.62%, and water suction width expansion rate is 1.3%, and the defects such as silk, without clearly visible gap, without visible groove, are jumped in the surface of this comb composite bamboo.
Embodiment 2:
The comb composite bamboo of a kind of present invention, is processed into bamboo wood for primary raw material, and the density of this comb composite bamboo is 1.35g/cm3, thickness swelling rate is 0.47%, and water suction width expansion rate is 0.96%, and the defects such as silk, without clearly visible gap, without visible groove, are jumped in the surface of this comb composite bamboo.
The manufacture method of the comb composite bamboo of a kind of above-mentioned the present embodiment, comprises the following steps:
(1) by 3～5 years setation bamboo (length is 16.5 meters) with some thick bamboo tubes that annular saw sawing is 2.0m length, with broken bamboo machine by bamboo chip that thick bamboo tube subdivision is 18 deciles, the long 2.0m of bamboo chip, then the bamboo green grass or young crops on bamboo chip top layer is removed with bamboo strip splitting machine, with rough milling machine, the bamboo chip after removal bamboo green grass or young crops is carried out fixed thickness again to process, make bamboo chip thickness along its length basically identical, deviation is only smaller than 0.5mm, with bamboo wood chaser, the bamboo chip after fixed thick process is rolled process again, roll bamboo chip to become and longitudinally do not rupture, laterally loose and staggered connected netted bamboo bundle, and bamboo Shu Danyuan maximum gauge is less than 5mm, obtain discongesting bamboo bundle.
(2) above-mentioned bamboo bundle of discongesting is placed in high temperature high pressure process tank, and the high-temperature-hot-water of 82 DEG C is added in high temperature high pressure process tank through heat-exchanger pump, with the heater in high temperature high pressure process tank, high-temperature-hot-water is heated to 135 DEG C, by to discongesting bamboo bundle steaming and decocting 1.5h in tank, pressure inside the tank is 0.35MPa, after steaming and decocting completes, take out and discongest bamboo bundle；With mesh-belt drier, by the bamboo bundle of discongesting after steaming and decocting, to be dried to moisture content be 11%, and the temperature of dry medium controls at 95 DEG C；Dried bamboo bundle of discongesting is placed in high-temperature process kiln, with the normal pressure superheated vapour that temperature is 180 DEG C, the high-temperature shaping discongesting bamboo Shu Jinhang 2.5h is processed；Bamboo bundle of discongesting after high-temperature shaping is delivered in high-pressure injection plastic tank, processes discongesting bamboo Shu Jinhang initial vacuum, make the vacuum in high-pressure injection plastic tank reach 0.07MPa, and keep 10min；After initial vacuum process terminates, the phenolic resin adhesive that solid content is 45% is filled high-pressure injection plastic tank, and makes the pressure in high-pressure injection plastic tank reach 0.5MPa, pressurize 14min；After pressurize terminates, the bamboo Shu Jinhang final vacuum of discongesting of injecting glue is processed, makes the vacuum in high-pressure injection plastic tank reach 0.04MPa, keep 14min；After final vacuum process terminates, let out except the pressure in high-pressure injection plastic tank, obtain injecting glue bamboo bundle.
(3) be placed in mesh-belt drier being dried to moisture content by above-mentioned injecting glue bamboo bundle is 15%, and the temperature of dry medium controls at 68 DEG C；Dried injecting glue bamboo bundle heat molten type tree lace is woven well-thought-out plan bundle curtain, and the distance between adjacent heat molten type tree lace is 0.7m；Weigh 135kg bamboo bundle curtain, put it into assembly in the mould with locking device, then the bamboo bundle curtain in mould colded pressing sizing with cold stamping die press, the target density of slab is controlled at 1.35g/cm3, after bamboo bundle curtain is compressed into target setting density (being namely compressed to slab thickness is 200mm), with steel plate and pin locking die, to prevent bounce-back from replying, obtaining slab, slab length is 2.0m, and width of plate slab is 250mm, and slab thickness is 200mm.
(4) above-mentioned slab together being sent into tunnel type together with mould and be heating and curing in equipment, the temperature that is heating and curing controls at 145 DEG C, and the process time is 9h, and be heating and curing rear natural cooling, obtains sheet forming；Sheet forming is carried out post processing, sheet forming is first placed in constant-temperature and constant humidity store, and (temperature is 28 DEG C, relative humidity is 60%) interior Mi Dui deposits 18 days, then sheet forming is longitudinally carried out flush, plane limit and subdivision with horizontal respectively, obtain being of a size of the comb composite bamboo of long 2.0m, wide 0.25m, thick 0.2m.
The comb composite bamboo thickness swelling rate of above-mentioned the present embodiment manufacture is 0.47%, and water suction width expansion rate is 0.96%, and the defects such as silk, without clearly visible gap, without visible groove, are jumped in the surface of comb composite bamboo.
The comb composite bamboo that above example produces is adopted to can substitute for precious broad-leaved wood, for high-grade comb manufacture, it is also possible to for the manufacture of other high-grade bamboo product (such as bamboo furniture, bamboo craftwork product etc.), to drastically increase the added value of bamboo wood goods.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment.All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.Iting is noted that for those skilled in the art, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. comb the manufacture method using composite bamboo, comprise the following steps:
(1) former bamboo being processed into bamboo chip, the bamboo first removing bamboo chip is blue or green, then bamboo chip carries out fixed thick process and rolls process, obtaining discongesting bamboo bundle；
(2) bamboo Shu Jinhang high-temperature-hot-water steaming and decocting process is discongested to above-mentioned, then the bamboo bundle of discongesting after steaming and decocting being processed is dried, dried bamboo Shu Jinhang high-temperature shaping of discongesting is processed, then the bamboo Shu Jinhang high-pressure injection plastic of discongesting after high-temperature shaping process is processed, obtain injecting glue bamboo bundle；
(3) above-mentioned injecting glue bamboo bundle is dried, dried injecting glue bamboo bundle is woven well-thought-out plan bundle curtain, and is placed in a mould by bamboo bundle curtain to carry out, after assembly, sizing of colding pressing, obtain slab；
(4) it is heated above-mentioned slab solidifying and cooling Balance Treatment, obtains sheet forming, sheet forming is carried out post processing, obtain comb composite bamboo；
The detailed process that described high-pressure injection plastic processes is as follows: is placed in high-pressure injection plastic tank and carries out initial vacuum process by the bamboo bundle of discongesting after high-temperature shaping, and vacuum degree control, at 0.06MPa～0.08MPa, keeps 10min～15min；After initial vacuum process terminates, with the phenolic resin adhesive that solid content is 35%～50% to discongesting bamboo Shu Jinhang injecting glue in tank, injection pressure controls at 0.3MPa～0.6MPa, pressurize 8min～16min；After pressurize terminates, the bamboo Shu Jinhang final vacuum of discongesting of injecting glue being processed, vacuum degree control, at 0.04MPa～0.06MPa, keeps 10min～15min；After final vacuum process terminates, let out except the pressure in high-pressure injection plastic tank, obtain injecting glue bamboo bundle.
2. manufacture method according to claim 1, it is characterised in that in step (1), described bamboo chip is after fixed thickness processes, and along the length direction of bamboo chip, the thickness deviation of bamboo chip is less than 0.5mm；Described discongest bamboo bundle be longitudinally do not rupture, horizontal loose and staggered connected netted bamboo bundle, described in discongest in bamboo bundle the maximum gauge of contained bamboo Shu Danyuan less than 5mm.
3. manufacture method according to claim 1, it is characterised in that during described high-temperature-hot-water steaming and decocting processes, the high-temperature-hot-water adopting temperature to be 120 DEG C～140 DEG C discongests bamboo Shu Jinhang steaming and decocting to described, and digestion time is 0.5h～2.0h.
4. manufacture method according to claim 1, it is characterised in that during described high-temperature shaping processes, the normal pressure superheated vapour adopting temperature to be 160 DEG C～200 DEG C discongests bamboo Shu Jinhang sizing to dried, and shaping time is 0.5h～3.0h.
5. manufacture method according to claim 1, it is characterised in that discongesting bamboo bundle moisture content after drying described in step (2) is 8%～12%, and baking temperature is less than 100 DEG C；Injecting glue bamboo bundle moisture content after drying described in step (3) is 10%～16%, and baking temperature is less than 70 DEG C.
6. the manufacture method according to any one of Claims 1 to 5, it is characterised in that in braiding process, adopting heat molten type tree lace is litzendraht wire, and the distance between adjacent heat molten type tree lace is 0.5m～0.8m.
7. the manufacture method according to any one of Claims 1 to 5, it is characterised in that described width of plate slab is 100mm～300mm, slab thickness is 100mm～400mm, and slab density is 1.10g/cm3～1.40g/cm3。
8. the manufacture method according to any one of Claims 1 to 5, it is characterised in that in step (4), described in the temperature that is heating and curing control at 130 DEG C～150 DEG C, the time being heating and curing controls at 4h～10h；Described post processing include Mi Dui deposit, flush, plane limit and subdivision, wherein the close heap resting period is 10～20 days.
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| CN103770168B (en) * | 2014-01-21 | 2016-04-20 | 湖南桃花江实业有限公司 | A kind of anticorrosion restructuring composite bamboo and manufacture method thereof |
| CN105150351A (en) * | 2015-08-31 | 2015-12-16 | 安徽宏宇竹业科技股份有限公司 | Bamboo pillar manufacturing technical method |
| CN113290650B (en) * | 2021-05-17 | 2022-08-02 | 中南林业科技大学 | High-strength bamboo composite recombined material and manufacturing method thereof |
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