CN105313208A - Manufacturing method of reconsolidated straws - Google Patents
Manufacturing method of reconsolidated straws Download PDFInfo
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- CN105313208A CN105313208A CN201410378218.0A CN201410378218A CN105313208A CN 105313208 A CN105313208 A CN 105313208A CN 201410378218 A CN201410378218 A CN 201410378218A CN 105313208 A CN105313208 A CN 105313208A
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- stalk
- producing
- recombining
- material according
- hot pressing
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Abstract
The invention relates to a manufacturing method of reconsolidated straws. The manufacturing method comprises the steps of softening, grinding, drying, gluing, laying, assembling, prepressing, hot-pressing and trimming. The manufacturing method is characterized in that straws are softened and ground into straw fiber bundles, over 80% of the straw fiber bundles are 100 to 800 mm in length and 0.2 to 5 mm in width, do not break longitudinally and are connected horizontally in a staggered mode, and the laying, assembling and arranging directions of the straw fiber bundles are coincident after gluing.
Description
Technical field
The present invention relates to a kind of manufacture method of wood-based plate, belong to wood-based panel industry technical field, relating in particular to a kind of take agricultural crop straw as recombinant material manufacturing process and the manufacturing technology of raw material.
Background technology
Along with China is to the increasing of forest conservation dynamics and the continuous increase to Wood demand, timber resources is more and more nervous.Agricultural crop straw is excellent biological material, and main component is similar to part broadleaf, wide material sources, is desirable wood substitute material, utilizes agricultural crop straw to manufacture wood-based plate and can solve raw material of artifical plate problem in short supply.
Existing straw-based panel powder of straw is broken into wood shavings or is processed into fiber, and these processing methods destroy the original longitudinal strength of stalk, and yield is low, and energy consumption is large, also have impact on the physical and mechanical property of product; Adopt isocyanates gluing Ji cost high and easily stick plate; The artificial board of straw mainly crushed straw aggregate plate of current production, kind is few, and structure is single.This patent is by a kind of novel stalk recombining material production method of exploitation.
Summary of the invention
For problem and the defect of above-mentioned prior art, object of the present invention discloses a kind of process of producing stalk recombining material, and object is the longitudinal tissue's structure and the mechanical property that keep stalk fibre, improves intensity and the bearing capacity of artificial board of straw.
The technical scheme realizing foregoing invention object be stalk through softening, rolling, drying, applying glue, assembly of mating formation, precompressed, hot pressing, trimming operation make, it is characterized in that: the raw material through softening, being rolled into more than 80% is length 100 ~ 800mm, width 0.2 ~ 5mm, longitudinally do not rupture, the horizontal staggered stalk fibre bundle be connected, and after applying glue, the assembly orientation of mating formation of stalk fibre bundle is consistent.
Described process of producing stalk recombining material, is characterized in that: stalk removes root, Ye Hou, adopts hot cooking's sofening treatment 1 ~ 3 hour, then carries out rolling process.
Described process of producing stalk recombining material, is characterized in that: stalk is one or more mixed stalk raw materials in cotton stalk, beans stalk, tobacco rod, capsicum stalk and cornstalk.
Described process of producing stalk recombining material, is characterized in that: after dry, the moisture control of raw material is 4 ~ 10%, and after applying glue, the moisture control of raw material is 10 ~ 20%.
Described process of producing stalk recombining material, is characterized in that: preload pressure is 1 ~ 5MPa, and squeeze time is 1 ~ 5min; Hot pressing pressure is 4 ~ 8MPa, and hot pressing temperature is 110 ~ 180, and press closes speed is 5 ~ 15mm/s, and the dwell time is 5 ~ 20min.
The stalk recombining material of manufacture of the present invention may be used for: make furniture, building structure, clad plate, compartment and base plate thereof, interior decoration.
Compared with prior art, process of producing stalk recombining material of the present invention has following advantage:
(1) production technology is simple, and energy consumption is low, and stalk fibre bundle can reach requirement by means of only rolling, and length size differs also completely available, and it is very little to roll required power.
(2) moisture content of raw material easily controls, and dry run can not cause the distortion of stalk fibre bundle, curling and frangible defect.
(3) post-production is convenient, saws, cuts, digs, holes, milling, splicing, spreading, veneer etc. be all very convenient.
Detailed description of the invention
Example 1
Cotton stalk is removed root, Ye Hou, and boiling is softened, roll and remove skin aft-loaded airfoil become longitudinally do not rupture, the horizontal staggered cotton stalk fiber bundle be connected; Cotton stalk fiber bundle is dried to moisture content≤10%, carries out glue spraying process with the urea-formaldehyde resin adhesive that solids content is about 50%, then assembly, and after applying glue, the assembly orientation of mating formation of stalk fibre bundle is consistent; Reconsolidated cotton-stalk finished product is obtained after cutting out through precompressed, hot pressing, saw.Following table is that the physical and mechanical property of the reconsolidated cotton-stalk that makes of the present invention and prior art associated materials contrasts.
The mechanical property of table 1 reconsolidated cotton-stalk
Density of material g/cm
3mOR/MPaMOE/MPa
Cotton stalk particieboard 0.65-0.7516.58-18.841868-2333
Poplar 0.38-0.4020.00-42.003724-12504
Poplar recombinant material 0.52-0.6065.00-70.003454-6214
Reconsolidated cotton-stalk 0.60-0.8051.83-62.804656-8348.
Example 2
Beans stalk is removed root, folder, Ye Hou, softens through boiling, roll and be processed into beans stalk fiber bundle.Beans stalk fiber bundle is dried to moisture content≤10%, carries out glue spraying process with the urea-formaldehyde resin adhesive that solids content is about 50%, then assembly, obtain beans stalk recombinant material finished product through precompressed, hot pressing, saw after cutting out.
Claims (5)
1. a process of producing stalk recombining material, through softening, rolling, drying, applying glue, assembly of mating formation, precompressed, hot pressing, trimming operation make, it is characterized in that: stalk through the raw material softening, be rolled into more than 80% be length 100 ~ 800mm, width 0.2 ~ 5mm, longitudinally do not rupture, the horizontal staggered stalk fibre bundle be connected, and after applying glue, the assembly orientation of mating formation of stalk fibre bundle is consistent.
2. process of producing stalk recombining material according to claim 1, is characterized in that: stalk removes root, Ye Hou, adopts hot cooking's sofening treatment 1 ~ 3 hour, then carries out rolling process.
3. process of producing stalk recombining material according to claim 1, is characterized in that: stalk is one or more mixed stalk raw materials in cotton stalk, beans stalk, tobacco rod, capsicum stalk and cornstalk.
4. process of producing stalk recombining material according to claim 1, is characterized in that: after dry, the moisture control of raw material is 4 ~ 10%, and after applying glue, the moisture control of raw material is 10 ~ 18%.
5. process of producing stalk recombining material according to claim 1, is characterized in that: preload pressure is 1 ~ 5MPa, and squeeze time is 1 ~ 5min; Hot pressing pressure is 4 ~ 8MPa, and hot pressing temperature is 110 ~ 180 DEG C, and press closes speed is 5 ~ 15mm/s, and the dwell time is 5 ~ 20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378218.0A CN105313208A (en) | 2014-08-04 | 2014-08-04 | Manufacturing method of reconsolidated straws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378218.0A CN105313208A (en) | 2014-08-04 | 2014-08-04 | Manufacturing method of reconsolidated straws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105313208A true CN105313208A (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410378218.0A Pending CN105313208A (en) | 2014-08-04 | 2014-08-04 | Manufacturing method of reconsolidated straws |
Country Status (1)
| Country | Link |
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| CN (1) | CN105313208A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313267A (en) * | 2016-10-31 | 2017-01-11 | 北华大学 | Straw recombination laminated wood and preparation method thereof |
| CN110355836A (en) * | 2019-05-27 | 2019-10-22 | 孙星海 | A kind of integrated approach of corn stover restructuring laminated timber |
| CN110370420A (en) * | 2019-05-27 | 2019-10-25 | 孙星海 | A kind of preparation method of corn stover recombinant material |
| CN111300565A (en) * | 2020-04-02 | 2020-06-19 | 北华大学 | Anticorrosive corn straw recombined material and manufacturing method thereof |
-
2014
- 2014-08-04 CN CN201410378218.0A patent/CN105313208A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313267A (en) * | 2016-10-31 | 2017-01-11 | 北华大学 | Straw recombination laminated wood and preparation method thereof |
| CN110355836A (en) * | 2019-05-27 | 2019-10-22 | 孙星海 | A kind of integrated approach of corn stover restructuring laminated timber |
| CN110370420A (en) * | 2019-05-27 | 2019-10-25 | 孙星海 | A kind of preparation method of corn stover recombinant material |
| CN111300565A (en) * | 2020-04-02 | 2020-06-19 | 北华大学 | Anticorrosive corn straw recombined material and manufacturing method thereof |
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Legal Events
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Application publication date: 20160210 |