CN107618084A - A kind of processing method for strengthening mao bamboon mechanical property - Google Patents
A kind of processing method for strengthening mao bamboon mechanical property Download PDFInfo
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- CN107618084A CN107618084A CN201710723913.XA CN201710723913A CN107618084A CN 107618084 A CN107618084 A CN 107618084A CN 201710723913 A CN201710723913 A CN 201710723913A CN 107618084 A CN107618084 A CN 107618084A
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- mao bamboon
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Abstract
The invention belongs to bamboo processing technology field, especially a kind of processing method for strengthening mao bamboon mechanical property, specific method is as follows：（1）Mao bamboon after harvesting is blocked, heat-insulation soaking in boric acid solution is immersed in, pulls out, inserts cryostat in household freezer, is taken out, steam treatment；（2）It is immersed in treatment fluid and is boiled by slow fire, pulls out, application of vacuum；（3）Drying baker is dried, and is taken out, chilling room cooling；Not only effectively enhance the uniformity between mao bamboon cellulose, binding strength between reinforcing fiber element, mao bamboon is set to resist the ability enhancing of sliding rupture between cellulose fibril during bearing load, effectively strengthen its mechanical property, and be advantageous to prevent the polysaccharide decomposing enzyme of microorganism from entering the glycosidic inkage of poly- polysaccharide and cause hydrolysis, strengthen its antiseptic insect-repelling ability.
Description
Technical field
The invention belongs to bamboo processing technology field, especially a kind of processing method for strengthening mao bamboon mechanical property.
Background technology
Mao bamboon is that China's long, area of cultivation is most wide, economic value also most important bamboo kind, and its pole type is thick, preferably supplies to build
Use, such as beam column, frame, scaffold are built, the thin bamboo strip is excellent, apparatus and handicraft for weaving various thicknesses, its physical mechanics property
Matter is to weigh the important indicator of quality of bamboo timber, is the basis of bamboo processing utilization；But the mechanical property of mao bamboon can not be fine
Satisfaction processing and use during requirement, often lead to the waste of material and the decline of bamboo product performance, therefore, hair
A kind of development of the bright processing method that can effectively strengthen mao bamboon mechanical property to bamboo product field is significant.
The content of the invention
A kind of in view of the above-mentioned problems, the present invention is intended to provide processing method for strengthening mao bamboon mechanical property.
The present invention is achieved through the following technical solutions：
A kind of processing method for strengthening mao bamboon mechanical property, specific method are as follows：
（1）Mao bamboon after harvesting is blocked, is immersed in the boric acid solution that temperature is 66 ~ 70 DEG C, mass fraction is 1.3% ~ 1.5%
6 ~ 7h of heat-insulation soaking, is pulled out, is inserted 70 ~ 80min of cryostat in the household freezer that temperature is -17 ~ -15 DEG C, is taken out, steam treatment
38~42min；
（2）Will be through step（1）Mao bamboon after processing, which is immersed in treatment fluid, to be boiled by slow fire, and is pulled out, 54 ~ 58min of application of vacuum；
Described treatment fluid, it is made up of the raw material of following parts by weight：2.3 ~ 2.7 parts of sodium lignin sulfonate, sucrose ester 3.2 ~ 3.6
Part, 5.1 ~ 5.5 parts of tartaric acid, 8.8 ~ 9.2 parts of polyvinyl alcohol, 4.4 ~ 4.6 parts of potassium permanganate, 1.7 ~ 1.9 parts of guar gum, peroxophosphoric acid
7.7 ~ 8.1 parts of calcium, 110 ~ 120 parts of water；
（3）Will be through step（2）Mao bamboon after processing inserts 6 ~ 8min of constant temperature drying in the drying baker that temperature is 42 ~ 44 DEG C, with 2.5
~ 2.9 DEG C/min heating rate is warming up to 70 ~ 72 DEG C of continuation 22 ~ 24min of constant temperature drying, takes out, and it is 1 ~ 3 DEG C to insert temperature
Chilling room cools down.
As the further scheme of invention：Step（1）Described steam treatment, first in the condition that temperature is 185 ~ 190 DEG C
8 ~ 10min of lower steam treatment, 30 ~ 32min of steam treatment under conditions of being then 105 ~ 110 DEG C in temperature.
As the further scheme of invention：Step（2）Described application of vacuum, first temperature be 76 ~ 78 DEG C, vacuum be
13 ~ 15min of application of vacuum under conditions of 160 ~ 170Pa, then in the condition that temperature is 60 ~ 62 DEG C, vacuum is 270 ~ 280Pa
41 ~ 43min of lower application of vacuum.
Beneficial effects of the present invention：A kind of processing method for strengthening mao bamboon mechanical property provided by the invention, boric acid processing
Then steam treatment is freezed, effectively enhances the uniformity between mao bamboon cellulose, the binding strength between reinforcing fiber element, treatment fluid leaching
Bubble and then application of vacuum, the active chemical and the active group of mao bamboon being immersed in inside mao bamboon are chemically reacted, and are generated
Similar to the crust class material such as lignin, hemicellulose, so as to be wrapped in around cellulose microfibril, bundle is played to mao bamboon fibril
Effect is tied up, preferably plays a part of scattered under external force effect and transmits stress, make mao bamboon cellulose during bearing load
The ability enhancing of sliding rupture is resisted between fibril, effectively strengthens its mechanical property, and is advantageous to prevent more sugars of microorganism
Solution enzyme enters the glycosidic inkage of poly- polysaccharide and causes hydrolysis, is reacted with active function groups inside mao bamboon, is formed firm
Chemical bonds, among cellulose fibril is fixed on into the three-dimensional netted high polymer of mutual glue even, hinder entering for extraneous entomogenous fungi
Invade, strengthen its antiseptic insect-repelling ability.
Embodiment
Illustrate the present invention with specific embodiment below, but be not limitation of the present invention.
Embodiment 1
In the embodiment of the present invention, a kind of processing method for strengthening mao bamboon mechanical property, specific method is as follows：
（1）Mao bamboon after harvesting is blocked, is immersed in heat-insulation soaking in the boric acid solution that temperature is 66 DEG C, mass fraction is 1.3%
6h, pull out, insert cryostat 70min in the household freezer that temperature is -17 DEG C, take out, steam treatment 38min；
（2）Will be through step（1）Mao bamboon after processing, which is immersed in treatment fluid, to be boiled by slow fire, and is pulled out, application of vacuum 54min；
Described treatment fluid, it is made up of the raw material of following parts by weight：2.3 parts of sodium lignin sulfonate, 3.2 parts of sucrose ester, tartaric acid
5.1 parts, 8.8 parts of polyvinyl alcohol, 4.4 parts of potassium permanganate, 1.7 parts of guar gum, 7.7 parts of calcium superphosphate, 110 parts of water；
（3）Will be through step（2）It is constant temperature drying 6min in 42 DEG C of drying baker that mao bamboon after processing, which inserts temperature, with 2.5 DEG C/
Min heating rate is warming up to 70 DEG C of continuation constant temperature drying 22min, takes out, and inserts the chilling room that temperature is 1 DEG C and cools down.
As the further scheme of invention：Step（1）Described steam treatment, steamed under conditions of being first 185 DEG C in temperature
Vapour handles 8min, steam treatment 30min under conditions of being then 105 DEG C in temperature.
As the further scheme of invention：Step（2）Described application of vacuum, first temperature be 76 DEG C, vacuum be
Application of vacuum 13min under conditions of 160Pa, the then application of vacuum under conditions of temperature is 60 DEG C, vacuum is 270Pa
41min。
Embodiment 2
In the embodiment of the present invention, a kind of processing method for strengthening mao bamboon mechanical property, specific method is as follows：
（1）Mao bamboon after harvesting is blocked, is immersed in heat-insulation soaking in the boric acid solution that temperature is 68 DEG C, mass fraction is 1.4%
6.5h, pull out, insert cryostat 75min in the household freezer that temperature is -16 DEG C, take out, steam treatment 40min；
（2）Will be through step（1）Mao bamboon after processing, which is immersed in treatment fluid, to be boiled by slow fire, and is pulled out, application of vacuum 56min；
Described treatment fluid, it is made up of the raw material of following parts by weight：2.5 parts of sodium lignin sulfonate, 3.4 parts of sucrose ester, tartaric acid
5.3 parts, 9 parts of polyvinyl alcohol, 4.5 parts of potassium permanganate, 1.8 parts of guar gum, 7.9 parts of calcium superphosphate, 115 parts of water；
（3）Will be through step（2）It is constant temperature drying 7min in 43 DEG C of drying baker that mao bamboon after processing, which inserts temperature, with 2.7 DEG C/
Min heating rate is warming up to 71 DEG C of continuation constant temperature drying 23min, takes out, and inserts the chilling room that temperature is 2 DEG C and cools down.
As the further scheme of invention：Step（1）Described steam treatment, steamed under conditions of being first 188 DEG C in temperature
Vapour handles 9min, steam treatment 31min under conditions of being then 108 DEG C in temperature.
As the further scheme of invention：Step（2）Described application of vacuum, first temperature be 77 DEG C, vacuum be
Application of vacuum 14min under conditions of 165Pa, the then application of vacuum under conditions of temperature is 61 DEG C, vacuum is 275Pa
42min。
Embodiment 3
In the embodiment of the present invention, a kind of processing method for strengthening mao bamboon mechanical property, specific method is as follows：
（1）Mao bamboon after harvesting is blocked, is immersed in heat-insulation soaking in the boric acid solution that temperature is 70 DEG C, mass fraction is 1.5%
7h, pull out, insert cryostat 80min in the household freezer that temperature is -15 DEG C, take out, steam treatment 42min；
（2）Will be through step（1）Mao bamboon after processing, which is immersed in treatment fluid, to be boiled by slow fire, and is pulled out, application of vacuum 58min；
Described treatment fluid, it is made up of the raw material of following parts by weight：2.7 parts of sodium lignin sulfonate, 3.6 parts of sucrose ester, tartaric acid
5.5 parts, 9.2 parts of polyvinyl alcohol, 4.6 parts of potassium permanganate, 1.9 parts of guar gum, 8.1 parts of calcium superphosphate, 120 parts of water；
（3）Will be through step（2）It is constant temperature drying 8min in 44 DEG C of drying baker that mao bamboon after processing, which inserts temperature, with 2.9 DEG C/
Min heating rate is warming up to 72 DEG C of continuation constant temperature drying 24min, takes out, and inserts the chilling room that temperature is 3 DEG C and cools down.
As the further scheme of invention：Step（1）Described steam treatment, steamed under conditions of being first 190 DEG C in temperature
Vapour handles 10min, steam treatment 32min under conditions of being then 110 DEG C in temperature.
As the further scheme of invention：Step（2）Described application of vacuum, first temperature be 78 DEG C, vacuum be
Application of vacuum 15min under conditions of 170Pa, the then application of vacuum under conditions of temperature is 62 DEG C, vacuum is 280Pa
43min。
Comparative example
Untreated control group
Using the method for embodiment and comparative example to being handled with a collection of mao bamboon, its parallel-to-grain compressive strength, suitable is detected after processing
Line tensile strength, bending strength, modulus of elasticity, shearing-strength of wood along the grain and impact flexibility, testing result such as table 1：
The comparing result of the embodiment of table 1 and comparative example
| Parallel-to-grain compressive strength（MPa） | Tensile strength parallel to grain（MPa） | Bending strength（MPa） | Modulus of elasticity（GPa） | Shearing-strength of wood along the grain（MPa） | Impact flexibility（kJ/m2） | |
| Embodiment 1 | 98.73 | 334.77 | 234.55 | 24.62 | 17.79 | 5898.23 |
| Embodiment 2 | 98.81 | 334.94 | 234.67 | 24.79 | 17.71 | 5898.54 |
| Embodiment 3 | 98.87 | 334.88 | 234.76 | 24.67 | 17.87 | 5898.97 |
| Comparative example | 57.87 | 244.65 | 112.43 | 11.31 | 10.23 | 3332.65 |
As it can be seen from table 1 the mechanical property of the mao bamboon after processed by the invention is significantly improved, its usability is effectively improved
Energy.
Claims (3)
1. a kind of processing method for strengthening mao bamboon mechanical property, it is characterised in that specific method is as follows：
（1）Mao bamboon after harvesting is blocked, is immersed in the boric acid solution that temperature is 66 ~ 70 DEG C, mass fraction is 1.3% ~ 1.5%
6 ~ 7h of heat-insulation soaking, is pulled out, is inserted 70 ~ 80min of cryostat in the household freezer that temperature is -17 ~ -15 DEG C, is taken out, steam treatment
38~42min；
（2）Will be through step（1）Mao bamboon after processing, which is immersed in treatment fluid, to be boiled by slow fire, and is pulled out, 54 ~ 58min of application of vacuum；
Described treatment fluid, it is made up of the raw material of following parts by weight：2.3 ~ 2.7 parts of sodium lignin sulfonate, sucrose ester 3.2 ~ 3.6
Part, 5.1 ~ 5.5 parts of tartaric acid, 8.8 ~ 9.2 parts of polyvinyl alcohol, 4.4 ~ 4.6 parts of potassium permanganate, 1.7 ~ 1.9 parts of guar gum, peroxophosphoric acid
7.7 ~ 8.1 parts of calcium, 110 ~ 120 parts of water；
（3）Will be through step（2）Mao bamboon after processing inserts 6 ~ 8min of constant temperature drying in the drying baker that temperature is 42 ~ 44 DEG C, with 2.5
~ 2.9 DEG C/min heating rate is warming up to 70 ~ 72 DEG C of continuation 22 ~ 24min of constant temperature drying, takes out, and it is 1 ~ 3 DEG C to insert temperature
Chilling room cools down.
2. the processing method of enhancing mao bamboon mechanical property according to claim 1, it is characterised in that step（1）Described
Steam treatment, 8 ~ 10min of steam treatment under conditions of being first 185 ~ 190 DEG C in temperature, then in the bar that temperature is 105 ~ 110 DEG C
30 ~ 32min of steam treatment under part.
3. the processing method of enhancing mao bamboon mechanical property according to claim 1, it is characterised in that step（2）Described
Application of vacuum, first 13 ~ 15min of application of vacuum under conditions of temperature is 76 ~ 78 DEG C, vacuum is 160 ~ 170Pa, then in temperature
Spend for 60 ~ 62 DEG C, vacuum be 270 ~ 280Pa under conditions of 41 ~ 43min of application of vacuum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710723913.XA CN107618084A (en) | 2017-08-22 | 2017-08-22 | A kind of processing method for strengthening mao bamboon mechanical property |
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| CN201710723913.XA CN107618084A (en) | 2017-08-22 | 2017-08-22 | A kind of processing method for strengthening mao bamboon mechanical property |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108789721A (en) * | 2018-05-17 | 2018-11-13 | 阜南县铭钰柳木工艺品有限公司 | A method of enhancing reed grass stalk mechanical property |
| CN109049231A (en) * | 2018-08-07 | 2018-12-21 | 安徽昌发实业有限公司 | A kind of toughening enhancing processing method of bamboo chip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400856A (en) * | 2014-11-18 | 2015-03-11 | 福建农林大学 | Method for processing bamboos through circularly freezing and thawing, product and application |
| CN105500483A (en) * | 2015-12-01 | 2016-04-20 | 安徽雪峰木业有限公司 | Antifouling wood softening agent capable of improving handfeeling of woods and preparation method of antifouling wood softening agent |
| CN105904556A (en) * | 2016-05-23 | 2016-08-31 | 阜南县方柳工艺品有限公司 | Processing technology for moso bamboo for bamboo-woven basket |
| CN105936085A (en) * | 2016-05-28 | 2016-09-14 | 安徽舒城乐天工艺制品有限公司 | Method for increasing strength of moso bamboo |
-
2017
- 2017-08-22 CN CN201710723913.XA patent/CN107618084A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400856A (en) * | 2014-11-18 | 2015-03-11 | 福建农林大学 | Method for processing bamboos through circularly freezing and thawing, product and application |
| CN105500483A (en) * | 2015-12-01 | 2016-04-20 | 安徽雪峰木业有限公司 | Antifouling wood softening agent capable of improving handfeeling of woods and preparation method of antifouling wood softening agent |
| CN105904556A (en) * | 2016-05-23 | 2016-08-31 | 阜南县方柳工艺品有限公司 | Processing technology for moso bamboo for bamboo-woven basket |
| CN105936085A (en) * | 2016-05-28 | 2016-09-14 | 安徽舒城乐天工艺制品有限公司 | Method for increasing strength of moso bamboo |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108789721A (en) * | 2018-05-17 | 2018-11-13 | 阜南县铭钰柳木工艺品有限公司 | A method of enhancing reed grass stalk mechanical property |
| CN109049231A (en) * | 2018-08-07 | 2018-12-21 | 安徽昌发实业有限公司 | A kind of toughening enhancing processing method of bamboo chip |
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Application publication date: 20180123 |