CN105382911B - A kind of preparation method of agricultural crop straw building exterior wall heat preserving sheet material - Google Patents
A kind of preparation method of agricultural crop straw building exterior wall heat preserving sheet material Download PDFInfo
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- CN105382911B CN105382911B CN201510746497.6A CN201510746497A CN105382911B CN 105382911 B CN105382911 B CN 105382911B CN 201510746497 A CN201510746497 A CN 201510746497A CN 105382911 B CN105382911 B CN 105382911B
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- exterior wall
- agricultural crop
- heat preserving
- crop straw
- wall heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
- B27N3/143—Orienting the particles or fibres
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The present invention provides a kind of manufacture method of agricultural crop straw building exterior wall heat preserving plate.This method is using crop residues such as wheat straw, rice straw and cotton stalks as raw material, crushed by cutting hand hay cutter, mix the technical process such as shredding, airflow pavement, needle felting, applying glue sizing and solidifying, fire-retardant and anti-corrosion/mould proof processing, cutting block forming, it is finally made with fire-retardant and sound insulation function light weight durable building exterior wall heat preserving sheet material, to promote the development of China's green building, the energy consumption of building is substantially reduced, realizes that the efficient and high additive value of agricultural crop straw is recycled.
Description
Technical field
The present invention relates to building material technical field, and in particular to one kind prepares building exterior wall heat preserving with agricultural crop straw
The method of sheet material.
Background technology
In modern architecture, the energy consumption of building accounts for more than the 30% of total energy consumption.To reduce carbon emission, building energy-saving is non-
It is often important.In order to reach preferable building energy conservation requirement, the isothermal holding that exterior wall is used in modern architecture is indispensable arranges
One of apply.Current popular external wall insulation is mainly that (extrusion type gathers by EPS (expanded polystyrene foamed plastics), XPS
Styrofoam), PUR (rigid polyurethane foam) and PIR (hard polyisocyanate foam plastics) etc. constitute.These
The major defect of material is inflammable (fire retardant in spite of part, but also have larger smoke amount), and combustion gas is poisonous, to the danger of human body
Evil property is very big.And raw material is mainly high-carbon, the non-renewable and petrochemical material that recycles, price is also high.Therefore, with rich
It should be one important that rich and renewable and circulation biological material, which substitutes petroleum-based products manufacture building exterior wall heat preserving plate,
Developing direction.
Agricultural crop straw is the discarded residue produced in China's agricultural production.At present still without preferable processing method and
Using by way of, main or on-site incineration, therefore cause the serious environmental problem such as flue dust and haze, thus solve China because
The problem of environmental pollution that crop straw burning is produced is very urgent.
The content of the invention
The invention provides a kind of manufacture method of agricultural crop straw building exterior wall heat preserving sheet material.This method is a large amount of with China
Agricultural crop straw residue be raw material, be made into by a series of technical process with fire-retardant and sound insulation function lightweight
Durable building outer wall warming plate, substitutes traditional foamed plastics, not only can largely save the non-renewable petrochemical industry such as plastics
Resource, is that tribute is made in the conservation culture of China while the environmental pollution caused by the agricultural stalk that burns can also be greatly reduced
Offer.
The technical solution adopted in the present invention is：
A kind of preparation method of agricultural crop straw building exterior wall heat preserving sheet material, this method is led to using agricultural crop straw as raw material
Cross and cut hand hay cutter pulverization process, mixing shredding, airflow pavement, needle felting, applying glue solidification and fire-retardant and anti-corrosion/mould proof processing, stripping and slicing
The technical process such as shaping, are finally made with fire-retardant and sound insulation function light weight durable building exterior wall heat preserving plate.
Raw material stalk is one kind in the various agricultural crop straws such as wheat straw, rice straw, cotton stalk or any several mixing.Tool
Production procedure is as follows：
(1) hand hay cutter pulverization process is cut：Stalk is cut hand hay cutter machine and pulverizer by stalk fiber, wood shavings and each are made using various
The various sizes of short material of stalk is planted, the short material of stalk generally refers to crushed straw aggregate of the length at 3-5 centimetres.
(2) shredding is mixed：The short material weight 10-30% of stalk synthetic fibers are added in the short material of stalk, are opened using mixing
Loose machinery carries out mixing shredding, becomes uniform compound.The synthetic fibers are one kind in polyethylene, polypropylene, polyester.
Compared with conventional artificial's board device, the advantage using on-woven equipment is can be the long and short fiber for being difficult to mix according to a conventional method
It is uniformly mixed together.
(3) airflow pavement：Mated formation using assorted fibre Solution on Air Forming Equipment, according to the big of material form and the amount of feeding
It is small, intake is adjusted, regulation slab thickness is made up to, equally distributed assorted fibre slab is formed.The step can be difficulty
Uniformly mixed with the long and short fiber of mixing, expeditiously meet production requirement.
(4) needle felting：Using the needing machine progress needling treatment of two to three times, needling density is 5-10 every square centimeter
Root, is made mixed fibre felt.Needle felting the fragmentary stalk fibre that can not be molded is made the felt with certain form and intensity
Son.
(5) applying glue solidification and fire-retardant and anti-corrosion/mould proof processing, can use two ways：Or pass through glue spraying or impregnation or painting
Glue mode will be mixed with composite adhesive of the fire retardant with anti-corrosion/mould inhibitor and add in the mixed fibre felt that needle felting is obtained, so
Carried out afterwards by hot-pressing processing mode hot-forming；Or adhesive is added by needle felting by glue spraying or impregnation or gluing mode
In obtained mixed fibre felt, hot-forming, then spray coated flame retardant agent, anti-corrosion/mould inhibitor are carried out by hot-pressing processing mode.
The addition weight of the adhesive is the 5-10% of mixed fibre felt, and the fire retardant adds with anti-corrosion/mould inhibitor
Enter the 10-15% that weight is mixed fibre felt.
The adhesive is one or more of mixing in phenolic resin, resorcinol resin, isocyanates.
The fire retardant is one or more of combinations in phosphorus-nitrogen containing flame retardant, intumescent flame retardent.The anti-corrosion/mould proof
Agent is boron system and halogen and other organic and inorganic anti-corrosion/mould inhibitor.It can be any ratio between fire retardant and anti-corrosion/mould inhibitor
Example, depending on actual use demand.
The hot pressing temperature of the hot-pressing processing is 100-200 DEG C (being preferably 100-160 DEG C), and plate face hot pressing pressure is 0.1-
5.0MPa (being preferably 0.1-2.0MPa), processing time is 10-40 minutes (being preferably 15-30 minutes).It is glued the purpose of solidification
It is the felt intensity of further increase stalk fibre, reaches the intensity index requirement of building exterior wall heat preserving plate；Fire-retardant and anti-corrosion/
Mould proof processing is the fire-protection rating and useful life longevity for further improving the product.
Compared with prior art, the present invention has following remarkable advantage and beneficial effect：
(1) the discarded residue stalk using agricultural production is realized effective utilization of waste material, greatly reduced as main material
The energy consumption of building, realizes that the efficient and high additive value of agricultural crop straw is recycled, to promote the hair of China's green building
Exhibition；
(2) using cheap reproducible biological material, production cost is low；
(3) using the substantial amounts of agricultural crop straw residue of China as raw material, by mixing shredding, airlaid, needle felting
On-woven technical process be made into fire-retardant and sound insulation function light weight durable building exterior wall heat preserving sheet material, to substitute biography
The foamed plastics of system, not only can largely save the non-renewable fossil resources such as plastics, at the same can also be greatly reduced because
The environmental pollution that burning agricultural stalk is caused；
(4) current external wall insulation is mainly the foamed plastics such as EPS, XPS, is the non-renewable of high-carbon and to recycle
Petrochemical material, and price is higher；Petroleum-based products are substituted with abundant and renewable and circulation cheap biological material
Building exterior wall heat preserving sheet material is manufactured, the problems such as can not only solving inflammable current China's wall thermal insulation board and high price, and
Because the utilization of agricultural crop straw can partly alleviate the serious environmental problems caused by stalk on-site incineration.
Embodiment
The present invention is further described in detail with reference to embodiments.It is noted that detailed description below is all to illustrate
Property, it is intended to provide further instruction to the present invention.Unless otherwise indicated, all scientific and technical terms that the present invention is used
With the identical meanings being generally understood that with the technical field of the invention personnel.
Embodiment 1：
Wheat straw stalk cuts the short material for cutting up with a hay cutter into 5 cms, then broken into needle-like wood shavings by mechanical crushings such as ring flakers
Material.Then, by synthetic fibers such as crushed straw aggregate and polyester (or polyethylene, polypropylene), (synthetic fibers addition is material total amount
10%), by mix opener carry out twice mix shredding, be made into the uniform compound of crushed straw aggregate/synthetic fibers.Should
Compound is mated formation by assorted fibre Solution on Air Forming Equipment, and equally distributed assorted fibre slab is made.Slab is arrived by two again
Mixed fibre felt is made in the needing machine acupuncture of three times.Sprayed on mixed fibre felt and be mixed with answering for fire retardant and anti-corrosion/mould inhibitor
Rubber alloy stick (composite adhesive consumption is the 15% of material total amount), then by hot pressing (140 DEG C of temperature, plate face hot pressing pressure
0.5MPa, 20 minutes time) make the composite adhesive solidifying and setting in mixed fibre felt, then building exterior wall heat preserving is made through tailoring
Plate.
Embodiment 2：
The mixed straw (arbitrary proportion) of wheat straw and rice straw cuts the short material for cutting up with a hay cutter into 5 cms, is passing through beater grinder
Wood shavings particle is made.Particle is sieved, removed after tiny powder, by it with polyester (or polyethylene, polypropylene) etc. synthetic fibers
(synthetic fibers addition is the 15% of material total amount), carries out twice mixing shredding by mixing opener, is made into stalk
The uniform compound of particle/synthetic fibers.The compound is mated formation by assorted fibre Solution on Air Forming Equipment, and equally distributed mix is made
Fibre mat.Mixed fibre felt is made by the needing machine acupuncture of two to three times again in slab.Phenol is sprayed on mixed fibre felt
Urea formaldehyde adhesive (adhesive consumption is the 10% of material total amount), then by hot pressing (130 DEG C of temperature, plate face hot pressing pressure
0.2MPa, 30 minutes time) make the adhesive curing molding in mixed fibre felt.Plate surface after shaping is sprayed respectively again
Fire retardant, anti-corrosion/mould inhibitor and setting agent, building exterior wall heat preserving plate is made through tailoring.
The present embodiments relate to material, reagent and experimental facilities, be to meet external wall unless otherwise instructed
The commercially available prod of warming plate technical field.
It is described above, only the preferred embodiments of the present invention, it is noted that for those skilled in the art
For, on the premise of the core technology of the present invention is not departed from, improvements and modifications can also be made, these improvements and modifications also should
Belong to the scope of patent protection of the present invention.Any change in the implication and scope suitable with claims of the present invention, all
It is considered as being included within the scope of the claims.
Claims (7)
1. a kind of preparation method of agricultural crop straw building exterior wall heat preserving sheet material, it is characterised in that：Using agricultural crop straw as raw material,
By cut hand hay cutter pulverization process, mixing shredding, airflow pavement, needle felting, applying glue solidification and it is fire-retardant with anti-corrosion/mould proof processing, cut
Formation of lots, is made the durable lightweight wall thermal insulation board of flame retardant type；It is described mixing shredding refer to add 10-30% weight than synthesis
Fiber, carries out mixing shredding using mixing shredding machinery, forms uniform compound；The airflow pavement refers to use assorted fibre
Solution on Air Forming Equipment is mated formation, according to material form and the size of the amount of feeding, and regulation intake reaches regulation slab thickness, is formed
Equally distributed assorted fibre slab；The needle felting refers to carry out the needling treatment of two to three times, acupuncture using needing machine
Density is 5-10 roots every square centimeter, and mixed fibre felt is made.
2. a kind of preparation method of agricultural crop straw building exterior wall heat preserving plate according to claim 1, it is characterised in that：Institute
It is one kind in polyethylene, polypropylene or polyester to state synthetic fibers.
3. a kind of preparation method of agricultural crop straw building exterior wall heat preserving plate according to claim 1, it is characterised in that：Institute
State applying glue solidification and fire-retardant and anti-corrosion/mould proof processing refers to that fire retardant will be mixed with preventing by glue spraying or impregnation or gluing mode
The composite adhesive of corruption/mould inhibitor is added in the mixed fibre felt that needle felting is obtained, and is then carried out by hot-pressing processing mode
It is hot-forming.
4. a kind of preparation method of agricultural crop straw building exterior wall heat preserving plate according to claim 1, it is characterised in that：Institute
State applying glue solidification and it is fire-retardant refer to anti-corrosion/mould proof processing by glue spraying or impregnation or gluing mode by adhesive addition acupuncture into
In the mixed fibre felt that felt is obtained, hot-forming, then spray coated flame retardant agent, anti-corrosion/mould inhibitor are carried out by hot-pressing processing mode.
5. a kind of preparation method of agricultural crop straw building exterior wall heat preserving plate according to claim 3 or 4, its feature exists
In：The addition weight of the adhesive is the 5-10% of mixed fibre felt, the addition weight of the fire retardant and anti-corrosion/mould inhibitor
For the 10-15% of mixed fibre felt.
6. a kind of preparation method of agricultural crop straw building exterior wall heat preserving plate according to claim 3 or 4, its feature exists
In：The adhesive is one or more of mixing in phenolic resin, resorcinol resin or isocyanates.
7. a kind of preparation method of agricultural crop straw building exterior wall heat preserving plate according to claim 3 or 4, its feature exists
In：The hot pressing temperature of the hot-pressing processing is 100-200 DEG C, and plate face hot pressing pressure is 0.1-5.0MPa, and processing time is 10-40
Minute.
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| CN201510746497.6A CN105382911B (en) | 2015-11-06 | 2015-11-06 | A kind of preparation method of agricultural crop straw building exterior wall heat preserving sheet material |
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| CN201510746497.6A CN105382911B (en) | 2015-11-06 | 2015-11-06 | A kind of preparation method of agricultural crop straw building exterior wall heat preserving sheet material |
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| CN105382911A CN105382911A (en) | 2016-03-09 |
| CN105382911B true CN105382911B (en) | 2017-11-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042133A (en) * | 2016-05-23 | 2016-10-26 | 宁波中加低碳新技术研究院有限公司 | Manufacturing method for outdoor floor tiles, floors and exterior wall cladding panels |
| CN105965617B (en) * | 2016-05-23 | 2019-05-21 | 宁波中加低碳新技术研究院有限公司 | A kind of manufacturing method of veneer base exterior wall cladding |
| CN106117959A (en) * | 2016-06-29 | 2016-11-16 | 合肥广能新材料科技有限公司 | Phenolic resin compound insulating material and preparation method thereof |
| CN109174904A (en) * | 2018-08-21 | 2019-01-11 | 陆海波 | A kind of waste disposal processing technology |
| CN110078975A (en) * | 2019-05-22 | 2019-08-02 | 合肥天沃能源科技有限公司 | A kind of preparation process of agricultural crop straw regenerated plates |
| CN112497802A (en) * | 2020-12-15 | 2021-03-16 | 长春一汽四环总装福利包装有限公司 | Production process of composite pad |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100217921B1 (en) * | 1997-01-15 | 1999-09-01 | 최영모 | Cooling wall for a building |
| CN1142336C (en) * | 2001-02-27 | 2004-03-17 | 东华大学 | Forming process and its equipment for straw fibre felt |
| CN100577380C (en) * | 2008-07-11 | 2010-01-06 | 东北林业大学 | Heat pressing production method of polyethylene fiber-plant fibre compound material |
| CN101823279B (en) * | 2009-03-05 | 2012-10-03 | 计忠杰 | Maize straw heat-insulating board and preparation method thereof |
| CN101544837A (en) * | 2009-05-08 | 2009-09-30 | 东北林业大学 | Polypropylene fiber-straw fragment composite material and heat pressing manufacturing method thereof |
| CN101899883A (en) * | 2010-07-07 | 2010-12-01 | 南京林业大学 | Manufacturing method of thick and light straw wall material |
| CN102294858B (en) * | 2011-07-27 | 2014-07-16 | 乔刚 | Environmentally-friendly and energy-saving paper wall board and manufacturing method thereof |
| CN103770191B (en) * | 2014-01-23 | 2015-07-08 | 吴波 | Straw fireproofing heat retaining panel and preparation method |
| CN104744010A (en) * | 2015-03-04 | 2015-07-01 | 昆山文创建筑装饰工程有限公司 | Fireproof insulating board for exterior wall and production method thereof |
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Denomination of invention: A preparation method of crop straw building exterior wall thermal insulation plate Effective date of registration: 20211108 Granted publication date: 20171107 Pledgee: China Construction Bank Corporation Ninghai sub branch Pledgor: Ningbo Zhongjia low carbon New Technology Research Institute Co., Ltd Registration number: Y2021330002165 |
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