CN103086669B - Medium-density straw fiberboard and manufacturing method thereof - Google Patents
Medium-density straw fiberboard and manufacturing method thereof Download PDFInfo
- Publication number
- CN103086669B CN103086669B CN201310036183.8A CN201310036183A CN103086669B CN 103086669 B CN103086669 B CN 103086669B CN 201310036183 A CN201310036183 A CN 201310036183A CN 103086669 B CN103086669 B CN 103086669B
- Authority
- CN
- China
- Prior art keywords
- medium
- fiberboard
- cement
- density
- straw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a medium-density straw fiberboard which is mainly made from straw fiber, cement and water according to the weight proportion of 100: (30-50): (80-90). The invention also discloses a manufacturing method of the medium-density straw fiberboard. According to the medium-density straw fiberboard, straws are softened to produce fiber which accords with the production requirement of the fiberboard; and the medium-density straw fiberboard is environment-friendly, low in cost and wide in raw material sources as the cement is used as a bonding agent and is simple and convenient in production process as veneer cold-pressing is adopted. The performance of the medium-density straw fiberboard disclosed by the invention can reach even exceed the GB/T11718-1999 standard; and in addition, the cement is used as the bonding agent of the medium-density straw fiberboard instead of organic components, no harmful gas is produced in the production or using process, and the medium-density straw fiberboard accords with the using requirements of an environment-friendly fiberboard.
Description
Technical field
The present invention relates to a kind of Medium-density straw fiberboard and preparation method thereof.
Background technology
At present, the caking agent that medium density fibre board (MDF) is used in process of production mostly is resene or isocyanic ester etc., in process of production, and the problem such as easily produce obnoxious flavour or production cost is higher.And existing use cement as the product of caking agent as wooden cement-bonded wood chipboard, this shaving board density is higher, uses and is subject to a definite limitation.
Summary of the invention
The object of the present invention is to provide a kind of Medium-density straw fiberboard adopting cement to be made as caking agent.
Medium-density straw fiberboard of the present invention, is mixed by weight 100:30-50:80-90 primarily of stalk fibre, cement and water.
Described stalk fibre is dry rice straw or the grog fiber of wheat straw after sofening treatment, and its staple length is at 0.1-0.8mm.
Described cement is 32.5 grades of ordinary Portland cements.
The making method of Medium-density straw fiberboard of the present invention, comprises the steps:
(1) stalk fibre, cement and water are placed in batch agitator and mix ripe material;
(2) cold pressing in clamping apparatus at one-board, the grog after mixing is pressed, oil cylinder for presses pressure 20-25kg/cm
2, compacting static pressure time 5-10min;
(3) pressing plate tightened through step (2) is pushed curing room, at 90-100 DEG C of wet curing 8-10h, intensity (10-15) × 10
6n/m
2, dismantle locking latches, obtain fiberboard veneer;
(4) veneer obtained through step (3) is cut into some slabs, pushes kiln, at 70-110 DEG C of maintenance 7-8h, make plate water ratio within 20%, trimming polished finish.
When step (2) compression moulding, for ensureing the sheet material energy demoulding smoothly after compacting, clamping apparatus internal surface smearing release agent can be colded pressing as silicone emulsion etc. in one-board in advance.
The making method of the stalk fibre that the present invention is used is: first dry rice straw or wheat straw pulverized out the broken grass within 3cm by pulverizer; Then dry crushing grass is dropped in pulp of steam explosion machine, in 0.2-0.7Mpa, 3-5min environment, add 0.5%-15% S-WAT tenderizer. go out grog; Cleaning grog, after pressurization is anhydrated, dry through drying machine, moisture controlled is in 30%; For subsequent use extract the stalk fibre grating of staple length 0.1-0.8mm level in grog stalk crasher after.
In the present invention, cement used is common 32.5 grades of silicate cements, and cement is intensity 25 × 10 after 20 days
6n/m
2, intensity 45 × 10 after 28 days
6n/m
2, can add a small amount of Tai-Ace S 150, water glass, according to the presetting period of production requirement preparation cement, the presetting period controls within 40min.
Stalk softens by the present invention, has made the fiber meeting Fibreboard Production and require; Use cement is caking agent, environmental protection, cost is low, raw material sources are extensive, and veneer is colded pressing, and production technique is easy, even the performance of Medium-density straw fiberboard of the present invention can reach exceeded GB/T 11718-1999 standard, and the caking agent of Medium-density straw fiberboard of the present invention adopts cement and do not use organic composition, produce or can not obnoxious flavour be produced in use procedure, meeting the service requirements of environmental protection grade fibre board.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be appreciated that, these embodiments only for illustration of the present invention, and are not intended to limit the scope of the invention.Any improvement based on connotation of the present invention of making according to the present invention of those of ordinary skill in the art or adjustment, still belong to protection scope of the present invention in actual applications.
embodiment 1
The making of stalk fibre: first dry rice straw or wheat straw pulverized out the broken grass within 3cm by pulverizer; Then dropped in pulp of steam explosion machine by dry crushing grass, add 10wt% S-WAT tenderizer and soften slip in 0.5Mpa, 3-5min environment, cleaning, after pressurization is anhydrated, dry through drying machine, moisture controlled is in 30%; For subsequent use extract the stalk fibre grating of staple length 0.5-0.8mm in grog stalk crasher after.
(1) stalk fibre, cement and water are placed in batch agitator to mix; The weight ratio 100:30:80 of stalk fibre, cement and water.
(2) cold pressing in clamping apparatus at one-board, the grog after mixing is pressed, oil cylinder for presses pressure 25kg/cm
2, compacting static pressure time 5-10min;
(3) pressing plate tightened through step (2) is pushed curing room, at 90-100 DEG C of wet curing 8-10h, reach intensity 10 × 10
6n/m
2time, dismantle locking latches;
(4) veneer obtained through step (3) is cut into some slabs, pushes kiln, at 70-110 DEG C of maintenance 7-8h, make plate water ratio within 20%, trimming polished finish.The performance test results is as table 1.
embodiment 2
The making of stalk fibre: first dry rice straw or wheat straw pulverized out the broken grass within 3cm by pulverizer; Then dropped in pulp of steam explosion machine by dry crushing grass, add 10wt% S-WAT tenderizer and soften slip in 0.5Mpa, 3-5min environment, cleaning, after pressurization is anhydrated, dry through drying machine, moisture controlled is in 30%; For subsequent use extract the stalk fibre grating of staple length 0.5-0.8mm in grog stalk crasher after.
(1) by stalk fibre, cement and water are placed in batch agitator and mix, and the weight ratio of stalk fibre, cement and water is 100:40:90.
(2) cold pressing in clamping apparatus at one-board, the grog mixed is pressed, oil cylinder for presses pressure 25Kg/cm
2, the compacting static pressure time is 5-10min.
(3) pressing plate tightened through step (2) is pushed curing room, at 90-100 DEG C of wet curing 8-10h, reach intensity 15 × 10
6n/m
2time dismantle locking latches.
(4) veneer obtained through step (3) is cut into some slabs, pushes kiln, at 70-110 DEG C of maintenance 7-8h, make sheet material water ratio within 20%, trimming polished finish.The performance test results is as table 1.
Table 1: medium density fibre board (MDF) performance test (operative norm: GB/T 11718-1999 thickness of slab 1.2mm)
| Performance perameter | Standard | Embodiment 1 | Embodiment 2 |
| Density kg/m 2 | 450-880 | 860 | 870 |
| Water ratio % | 4-13 | 10% | 10% |
| MOR Mpa | 22 | 28 | 30 |
| Young's modulus Mpa | 2500 | 2650 | 2720 |
| Density variation % in plate | ±7.0 | ±6.0 | ±5.5 |
| Internal bond strength Mpa | 0.60 | 0.70 | 0.75 |
| Thickness swelling rate % | 12 | 9 | 7 |
Claims (1)
1. a making method for Medium-density straw fiberboard, is characterized in that, comprises the steps:
(1) stalk fibre, cement and water are placed in batch agitator and mix ripe material;
(2) cold pressing in clamping apparatus at one-board, the grog after mixing is pressed, oil cylinder for presses pressure 20-25kg/cm
2, compacting static pressure time 5-10min;
(3) pressing plate tightened through step (2) is pushed curing room, at 90-100 DEG C of wet curing 8-10h, intensity (10-15) × 10
6n/m
2, dismantle locking latches, obtain fiberboard veneer;
(4) veneer obtained through step (3) is cut into some slabs, pushes kiln, at 70-110 DEG C of maintenance 7-8h, make plate water ratio within 20%, trimming polished finish;
Described stalk fibre, cement and water are by weight 100:30-50:80-90 mixing; Described stalk fibre is for be prepared by following method: first dry rice straw or wheat straw pulverized out the broken grass within 3cm by pulverizer, then dry crushing grass is dropped in pulp of steam explosion machine, at 0.2-0.7MPa, add 0.5%-15% S-WAT tenderizer in 3-5min environment to soften, cleaning, after pressurization is anhydrated, dry through drying machine, moisture controlled is in 30%, for subsequent use extract the stalk fibre grating of staple length 0.1-0.8mm level in stalk crasher after; Described cement is 32.5 grades of ordinary Portland cements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310036183.8A CN103086669B (en) | 2013-01-31 | 2013-01-31 | Medium-density straw fiberboard and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310036183.8A CN103086669B (en) | 2013-01-31 | 2013-01-31 | Medium-density straw fiberboard and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103086669A CN103086669A (en) | 2013-05-08 |
| CN103086669B true CN103086669B (en) | 2015-05-20 |
Family
ID=48199866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310036183.8A Expired - Fee Related CN103086669B (en) | 2013-01-31 | 2013-01-31 | Medium-density straw fiberboard and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103086669B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760113B (en) * | 2015-02-12 | 2016-08-31 | 吕金阳 | A kind of manufacture method of high-strength environment-friendly sheet material |
| CN106431113B (en) * | 2016-09-28 | 2018-12-11 | 海南大学 | A kind of cement banana caulo fiberboard and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475455A (en) * | 2003-07-04 | 2004-02-18 | 张光辉 | Fiberboard made of straw and its manufacturing method |
| CN100371281C (en) * | 2005-09-01 | 2008-02-27 | 郭戈 | Straw fiber cement composite material |
-
2013
- 2013-01-31 CN CN201310036183.8A patent/CN103086669B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475455A (en) * | 2003-07-04 | 2004-02-18 | 张光辉 | Fiberboard made of straw and its manufacturing method |
| CN100371281C (en) * | 2005-09-01 | 2008-02-27 | 郭戈 | Straw fiber cement composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103086669A (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101058207B (en) | Maize stalk and/or wheat stalk composite board and its manufacturing method | |
| CN103878858A (en) | Method for manufacturing formaldehyde-free bamboo and wood fiberboard | |
| US20220032494A1 (en) | Formaldehyde-free medium-high-density board capable of meeting deep facing requirements and method for manufacturing same | |
| CN102179856B (en) | High-intensity shaving board and manufacturing method thereof | |
| CN105269642B (en) | Fire-retardant stalk lumber core and its manufacture method | |
| US20150345132A1 (en) | Fiber reinforcement fire-proof thermal insulation plate and preparation process thereof | |
| CN101186047A (en) | Method for using modified soy protein tackiness agent to prepare bamboo fiberboard | |
| CN105171883B (en) | A kind of manufacture method of bamboo and wood oriented wood chipboard used for bottom plate of container | |
| CN102001121B (en) | Method for producing bark mixed medium-density fiber plate | |
| CN102528861A (en) | Production method and manufacturing process for environmentally-friendly decorative board | |
| CN102248560A (en) | Method for manufacturing plant fiber exterior wall cladding | |
| CN102729311A (en) | Production method of eucalyptus bark shaving boards | |
| CN107471380B (en) | Composite shaving board and preparation method thereof | |
| CN105583935B (en) | A kind of method that environment protecting fiber board is prepared based on chitosan blend lignin | |
| CN104927374A (en) | Compression-resistant bending-resistant enhanced fiber board material and preparation method thereof | |
| CN103737695B (en) | A kind of wood-fibred advanced composite material manufacture method | |
| CN103086669B (en) | Medium-density straw fiberboard and manufacturing method thereof | |
| CN101722552A (en) | Regenerated particles, particle board and preparation method thereof | |
| CN110981279A (en) | Calcium silicate building material and preparation method thereof | |
| CN102225569B (en) | High-strength inorganic artificial board and manufacturing method thereof | |
| CN113942245A (en) | Manufacturing process of rock wool fiberboard | |
| CN101716785B (en) | Eucalyptus bark artificial sound-insulation fibreboard and manufacture method thereof | |
| CN107175857B (en) | plant fiber based floor tile and preparation method thereof | |
| CN104960066B (en) | A kind of grass tree structural slab and its production technology | |
| CN106553258B (en) | A kind of preparation process of formaldehydeless waterproof composite board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20170131 |