CN109749632B - Inorganic adhesive for preparing straw board, ecological straw board and preparation method thereof - Google Patents
Inorganic adhesive for preparing straw board, ecological straw board and preparation method thereof Download PDFInfo
- Publication number
- CN109749632B CN109749632B CN201910095863.4A CN201910095863A CN109749632B CN 109749632 B CN109749632 B CN 109749632B CN 201910095863 A CN201910095863 A CN 201910095863A CN 109749632 B CN109749632 B CN 109749632B
- Authority
- CN
- China
- Prior art keywords
- parts
- straw
- ecological
- board
- meshes
- 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.)
- Active
Links
Abstract
The invention provides an inorganic adhesive for preparing straw boards, an ecological straw board and a preparation method thereof, wherein the inorganic adhesive comprises the following components in parts by weight: 1-20 parts of magnesium oxide; 4-10 parts of aluminum oxide; 2-20 parts of calcium oxide; 1-12 parts of silicic acid; 0.5-8 parts of zeolite; 1-15 parts of bamboo charcoal. The ecological straw board comprises 42-80 parts of inorganic adhesive, 42-80 parts of straw and 6-12 parts of water. The inorganic adhesive and the ecological straw board do not contain toxic and harmful substances, harmful gases such as formaldehyde and toluene cannot be volatilized in use, the adhesiveness of the adhesive to the straw powder is strong, and the obtained straw board is high in mechanical strength.
Description
Technical Field
The invention belongs to the technical field of environment-friendly boards, and particularly relates to an inorganic adhesive for preparing a straw board, an ecological straw board and a preparation method thereof.
Background
Along with the shortage of wood resources, the price of the wood board taking wood as the raw material is higher, so that the research and development of the substitute of the wood board have important significance. The crop straw has high yield, high cellulose and lignin content and low price, and if the crop straw is used for replacing wood, not only can waste be changed into valuable, but also the environmental pollution caused by straw burning can be reduced, and forest resources can be protected. But the processing difficulty of the crop board is far greater than that of the wooden artificial board. Currently, the preparation process of straw board generally comprises the following steps: the method comprises the steps of raw material classification, raw material pretreatment, wood shaving preparation, adhesive adding to mix the raw materials, paving, hot pressing, pretreatment and finished product treatment. There are many factors affecting the quality of the finished board, but the adhesive has become a bottleneck restricting the quality of the crop straw board when the adhesive is developed to the present. The urea-formaldehyde resin or the phenol-formaldehyde resin is used as the adhesive, so that although the cost of the plate is low, the problem of long-term release of harmful gases such as formaldehyde exists. Although straw boards which do not release formaldehyde exist, isocyanate binders with higher price are used, so that the cost of the boards is higher. In addition, the existing straw board has the problems of low strength, easy deformation, simple preparation process and the like.
Disclosure of Invention
The invention aims to provide an inorganic adhesive for preparing a straw board, an ecological straw board and a preparation method thereof.
In order to solve the problems, the invention provides an inorganic adhesive for preparing straw boards, which comprises the following components in parts by mass:
in the technical scheme, preferably, the inorganic adhesive further comprises 0.002-0.009 parts by mass of additives; the additive is one or more of sodium silicate, sodium stearate and sodium dodecyl sulfate.
In the technical scheme, preferably, the additives are sodium silicate, sodium stearate and sodium dodecyl sulfate according to the proportion of 3: (0.1-2): (0.1-0.5) by mass ratio.
In the technical scheme, preferably, the inorganic adhesive comprises the following components in parts by weight:
in the technical scheme, the particle size of the bamboo charcoal is preferably 50-150 meshes; the particle size of the zeolite is 50-150 meshes; the particle size of the calcium oxide and/or the magnesium oxide and/or the aluminum oxide is 200-400 meshes.
The invention also aims to provide an ecological straw board, which comprises the following raw materials in parts by weight:
42-80 parts of straw;
6-12 parts of water.
In the technical scheme, the preferable raw materials comprise the following components in parts by mass:
50-53 parts of straw;
24-55 parts of an inorganic adhesive;
6-12 parts of water.
In the technical scheme, the straws are preferably one or more of corn straws, wheat straws and rice straws, and the particle size of the straws is 20-150 meshes.
Still another object of the present invention is to provide a method for preparing the above ecological straw board, comprising: mixing the straws, water and an inorganic adhesive, and forming into the ecological straw board.
In the technical scheme, the method preferably comprises the following steps:
firstly, mixing calcium oxide, magnesium oxide, aluminum oxide and water according to selected parts by weight;
secondly, adding the crushed straws into the mixture obtained in the first step, adding silicic acid, bamboo charcoal and zeolite into the mixture, and mixing to obtain a mixture of the inorganic adhesive and the straws;
thirdly, forming the mixture obtained in the second step on a plate forming machine to prepare a plate blank;
and fourthly, standing the plate blank obtained in the third step to obtain the ecological straw plate.
In the technical scheme, preferably, in the second step, 0.002-0.009 parts by weight of additive is added into the mixture obtained in the first step for mixing, and the additive is sodium silicate, sodium stearate and sodium dodecyl sulfonate according to the ratio of 3: (0.1-2): (0.1-0.5) by mass ratio.
In the technical solution, it is preferable that the method includes:
firstly, crushing straws to obtain straw powder with the granularity of 20-150 meshes;
secondly, adding calcium oxide, magnesium oxide, aluminum oxide and water into a mixer and uniformly stirring;
step three, adding the straw powder obtained in the step one, silicic acid, bamboo charcoal, zeolite and an additive into the mixture obtained in the step two in sequence and stirring uniformly;
fourthly, forming the mixture obtained in the third step on a plate forming machine to prepare a plate blank;
and fifthly, standing the slab obtained in the fourth step for 6-48 hours to obtain the ecological straw board.
Compared with the prior art, the invention has the following beneficial effects:
1. the inorganic adhesive does not contain toxic and harmful substances, and does not volatilize harmful gases such as formaldehyde, toluene and the like in the using process; the inorganic adhesive has wide component sources and low price; the inorganic adhesive has strong adhesiveness to the straw powder, and the prepared plate has high mechanical strength;
2. the ecological straw board is an ecological board, does not contain toxic and harmful substances, does not volatilize harmful gases such as formaldehyde, toluene and the like in the using process, and has high mechanical strength and fire resistance;
3. the preparation method has simple preparation process and simple operation.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The board is made by taking the straws as the raw material, so that crops such as the straws and the like can be reasonably utilized, the environmental pollution caused by straw burning is reduced, and forest resources such as wood and the like are protected. But the manufacturing difficulty of the straw board is far greater than that of a wooden board, the production process is complex, and an adhesive is needed when the board is manufactured, and can release harmful gases such as formaldehyde and the like for a long time, so that the health of a human body is damaged; in addition, the existing straw board still has the problems of low strength and easy deformation.
In order to solve the problems, the invention provides an inorganic adhesive for preparing straw boards, which comprises the following components in parts by weight:
the straw board prepared by bonding the inorganic adhesive consisting of the inorganic substances does not release toxic and harmful substances such as formaldehyde, toluene and the like in use, does not cause harm to human bodies, and has rich sources of all components, low price and no toxicity.
Wherein, magnesium oxide, aluminium oxide and calcium oxide not only play the adhesive action as the principal ingredients of gluing agent to straw powder, because it belongs to alkaline oxide, can regard as alkaline regulator to change the straw after adding water, dissolve out hemicellulose and lignin in the straw, improved the fibrous roughness of straw, can increase the area of contact of straw powder and gluing agent, improve the interact between straw powder and the gluing agent, make the adhesive degree of straw powder higher, the panel intensity of making is higher.
The zeolite and silicic acid can improve adhesive strength, and the bamboo charcoal can release negative oxygen ions and far infrared rays, and has health promoting effect.
The magnesium oxide has good stability and fire resistance, the aluminum oxide and the calcium oxide have high mechanical strength, and the prepared straw board has high mechanical strength and high fire resistance.
The components in the adhesive have interaction, and each component has great influence on the exertion of the structure and performance of other components, so that the addition of each component directly influences the firmness of the adhesive on the adhesion of straw powder, and further influences the mechanical strength and stability of the straw board. A large number of experimental researches prove that the adhesive has the best adhesion to the straw powder when the components are adopted according to the proportion.
In the technical scheme, preferably, the inorganic adhesive comprises the following components in parts by weight:
wherein, the additive is one or a combination of sodium silicate, sodium stearate and sodium dodecyl sulfate.
In the technical scheme, the additive is preferably prepared by mixing sodium silicate, sodium stearate and sodium dodecyl sulfate according to the mass ratio of 3 (0.1-2) to 0.1-0.5.
Sodium silicate in the additive contacts with air to generate carbonization and dehydration crystallization reaction, so that the strength of the plate is improved; sodium stearate and sodium dodecyl sulfate are easy to be mixed with Ca in the raw materials2+The reaction generates viscous substances, sodium dodecyl sulfonate forms an active center to accelerate the reaction, sodium silicate, sodium stearate and sodium dodecyl sulfonate are added into the adhesive according to the proportion, so that the interaction between the adhesive and the straw powder is stronger, the adhesiveness of the adhesive is higher, and the mechanical strength of the prepared straw board is higher.
Further preferably, the inorganic adhesive comprises the following components in parts by weight:
further preferably, the particle size of the bamboo charcoal is 50-150 meshes; the particle size of the zeolite is 50-150 meshes; the particle size of the calcium oxide and/or the magnesium oxide and/or the aluminum oxide is 200-400 meshes.
The invention also aims to provide an ecological straw board, which comprises the following raw materials in parts by weight:
42-80 parts of straw;
6-12 parts of water.
The ecological straw board does not contain harmful substances, can reasonably utilize crops such as straws and the like, reduces the environmental pollution caused by straw burning, and protects forest resources such as wood and the like. The straw board prepared by using the inorganic adhesive does not release harmful substances such as formaldehyde, toluene and the like in the using process, is harmless to human bodies, has strong adhesiveness to straw powder, and has high mechanical strength and better fire resistance.
Further preferably, the raw materials of the ecological straw board comprise the following components in parts by weight:
further preferably, the straws are one or more of corn straws, wheat straws and rice straws, and the particle size of the straws is 20-150 meshes.
Still another object of the present invention is to provide a method for preparing the above ecological straw board, comprising: mixing the straws, water and an inorganic adhesive, and forming into the ecological straw board.
In the technical scheme, the method preferably comprises the following steps:
firstly, mixing calcium oxide, magnesium oxide, aluminum oxide and water according to selected parts by weight;
secondly, adding the crushed straws into the mixture obtained in the first step, adding silicic acid, bamboo charcoal and zeolite into the mixture, and mixing to obtain a mixture of the inorganic adhesive and the straws;
thirdly, forming the mixture obtained in the second step on a plate forming machine to prepare a plate blank;
and fourthly, standing the plate blank obtained in the third step to obtain the ecological straw plate.
In the technical scheme, preferably, in the second step, 0.002-0.009 parts by mass of additives are further added into the mixture obtained in the first step for mixing, and the additives comprise 3: (0.1-2): (0.1-0.5) sodium silicate, sodium stearate and sodium dodecyl sulfate.
In the technical scheme, preferably, the method for preparing the ecological straw board comprises the following steps:
firstly, crushing straws to obtain straw powder with the granularity of 20-150 meshes;
secondly, adding calcium oxide, magnesium oxide, aluminum oxide and water into a mixer and uniformly stirring;
step three, adding the straw powder obtained in the step one, silicic acid, bamboo charcoal, zeolite and an additive into the mixture obtained in the step two in sequence and stirring uniformly;
fourthly, forming the mixture obtained in the third step on a plate forming machine to prepare a plate blank;
and fifthly, standing the slab obtained in the fourth step for 6-48 hours to obtain the ecological straw board.
The preparation method of the ecological straw is simple in preparation process and simple and convenient to operate.
Example one
The raw materials of the ecological straw board comprise the following components in parts by mass:
50 parts of straw, 3.997 parts of bamboo charcoal, 4 parts of zeolite, 12 parts of magnesium oxide, 6 parts of aluminum oxide, 4 parts of silicic acid, 10 parts of calcium oxide, 0.003 part of additive and 10 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 3: 1: 0.2, the granularity of the zeolite is 80 meshes, the granularity of the bamboo charcoal is 100 meshes, and the granularity of the calcium oxide, the magnesium oxide and the aluminum oxide is 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 10 parts of calcium oxide, 12 parts of magnesium oxide, 6 parts of aluminum oxide and 10 parts of water into a mixer, and fully and uniformly stirring;
after 3.2min, sequentially adding 50 parts of crushed straw powder, 4 parts of silicic acid, 3.997 parts of bamboo charcoal, 4 parts of zeolite and 0.003 part of additive into a mixer for fully stirring to uniformly mix;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.51MPa, and the bending strength is 4.79 MPa.
Example two
The raw materials of the ecological straw board comprise the following components in parts by mass:
50 parts of straw, 3.997 parts of bamboo charcoal, 4 parts of zeolite, 12 parts of magnesium oxide, 6 parts of aluminum oxide, 4 parts of silicic acid, 10 parts of calcium oxide, 0.003 part of additive and 10 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 3: 0.1: 0.1, the granularity of zeolite is 80 meshes, the granularity of bamboo charcoal is 100 meshes, and the granularity of calcium oxide, magnesium oxide and aluminum oxide is 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
6. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
7. adding 10 parts of calcium oxide, 12 parts of magnesium oxide, 6 parts of aluminum oxide and 10 parts of water into a mixer, and fully and uniformly stirring;
after 8.2min, sequentially adding 50 parts of crushed straw powder, 4 parts of silicic acid, 3.997 parts of bamboo charcoal, 4 parts of zeolite and 0.003 part of additive into a mixer for fully stirring to uniformly mix;
9. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
10. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.54MPa, and the bending strength is 4.82 MPa.
EXAMPLE III
The raw materials of the ecological straw board comprise the following components in parts by mass:
50 parts of straw, 3.997 parts of bamboo charcoal, 4 parts of zeolite, 12 parts of magnesium oxide, 6 parts of aluminum oxide, 4 parts of silicic acid, 10 parts of calcium oxide, 0.003 part of additive and 10 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 3: 2: 0.5, the granularity of the zeolite is 80 meshes, the granularity of the bamboo charcoal is 100 meshes, and the granularity of the calcium oxide, the magnesium oxide and the aluminum oxide is 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
11. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
12. adding 10 parts of calcium oxide, 12 parts of magnesium oxide, 6 parts of aluminum oxide and 10 parts of water into a mixer, and fully and uniformly stirring;
after 13.2min, sequentially adding 50 parts of crushed straw powder, 4 parts of silicic acid, 3.997 parts of bamboo charcoal, 4 parts of zeolite and 0.003 part of additive into a mixer for fully stirring to uniformly mix;
14. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
15. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.50MPa, and the bending strength is 4.77 MPa.
Example four
The raw materials of the ecological straw board comprise the following components in parts by mass:
53 parts of straw, 5.995 parts of bamboo charcoal, 3 parts of zeolite, 9 parts of magnesium oxide, 8 parts of aluminum oxide, 5 parts of silicic acid, 8 parts of calcium oxide, 0.005 part of additive and 8 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 3: 1: 0.2, the granularity of the zeolite is 50 meshes, the granularity of the bamboo charcoal is 50 meshes, and the granularity of the calcium oxide, the magnesium oxide and the aluminum oxide is 200 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 8 parts of calcium oxide, 9 parts of magnesium oxide, 8 parts of aluminum oxide and 8 parts of water into a mixer, and fully and uniformly stirring;
after 3.6min, adding 53 parts of crushed straw powder, 5 parts of silicic acid, 5.995 parts of bamboo charcoal, 3 parts of zeolite and 0.005 part of additive into a mixer in sequence, and fully stirring to uniformly mix the materials;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 18 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.63MPa, and the bending strength is 4.65 MPa.
EXAMPLE five
The raw materials of the ecological straw board comprise the following components in parts by mass:
51 parts of straw, 4 parts of bamboo charcoal, 4.993 parts of zeolite, 11 parts of magnesium oxide, 7 parts of aluminum oxide, 8 parts of silicic acid, 8 parts of calcium oxide, 0.007 part of additive and 6 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 3: 2: 0.5, the granularity of the zeolite is 150 meshes, the granularity of the bamboo charcoal is 150 meshes, and the granularity of the calcium oxide, the magnesium oxide and the aluminum oxide is 400 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks to 150 meshes;
2. adding 8 parts of calcium oxide, 11 parts of magnesium oxide, 7 parts of aluminum oxide and 6 parts of water into a mixer, and fully and uniformly stirring;
after 3.3min, sequentially adding 51 parts of crushed straw powder, 8 parts of silicic acid, 4 parts of bamboo charcoal, 4.993 parts of zeolite and 0.007 part of additive into a mixer for fully stirring to uniformly mix;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 48 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.62MPa, and the bending strength is 4.57 MPa.
EXAMPLE six
The raw materials of the ecological straw board comprise the following components in parts by mass:
52 parts of straw, 10 parts of bamboo charcoal, 0.991 part of zeolite, 6 parts of magnesium oxide, 5 parts of aluminum oxide, 9 parts of silicic acid, 5 parts of calcium oxide, 0.009 parts of additives and 12 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 3: 1: 0.1, the granularity of zeolite is 80 meshes, the granularity of bamboo charcoal is 80 meshes, and the granularity of calcium oxide, magnesium oxide and aluminum oxide is 200 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks to 120 meshes;
2. adding 5 parts of calcium oxide, 6 parts of magnesium oxide, 5 parts of aluminum oxide and 12 parts of water into a mixer, and fully and uniformly stirring;
after 3.5min, adding 52 parts of crushed straw powder, 9 parts of silicic acid, 10 parts of bamboo charcoal, 0.991 part of zeolite and 0.009 parts of additive into a mixer in sequence, and fully stirring to uniformly mix the materials;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 48 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.60MPa, and the bending strength is 4.61 MPa.
EXAMPLE seven
The raw materials of the ecological straw board comprise the following components in parts by mass:
50 parts of straw, 3.997 parts of bamboo charcoal, 4 parts of zeolite, 12 parts of magnesium oxide, 6 parts of aluminum oxide, 4 parts of silicic acid, 10 parts of calcium oxide, 0.003 part of additive and 10 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 1: 1: 3, the granularity of the zeolite is 80 meshes, the granularity of the bamboo charcoal is 100 meshes, and the granularity of the calcium oxide, the magnesium oxide and the aluminum oxide is 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 10 parts of calcium oxide, 12 parts of magnesium oxide, 6 parts of aluminum oxide and 10 parts of water into a mixer, and fully and uniformly stirring;
after 3.2min, sequentially adding 50 parts of crushed straw powder, 4 parts of silicic acid, 3.997 parts of bamboo charcoal, 4 parts of zeolite and 0.003 part of additive into a mixer for fully stirring to uniformly mix;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.39MPa, and the bending strength is 4.50 MPa.
Example eight
The raw materials of the ecological straw board comprise the following components in parts by mass:
42 parts of straw, 1 part of bamboo charcoal, 0.5 part of zeolite, 1 part of magnesium oxide, 4 parts of aluminum oxide, 1 part of silicic acid, 2 parts of calcium oxide, 0.002 part of additive and 6 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 1: 1: 2, the granularity of the zeolite is 80 meshes, the granularity of the bamboo charcoal is 100 meshes, and the granularity of the calcium oxide, the magnesium oxide and the aluminum oxide is 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 2 parts of calcium oxide, 1 part of magnesium oxide, 4 parts of aluminum oxide and 10 parts of water into a mixer, and fully and uniformly stirring;
after 3.2min, adding 42 parts of crushed straw powder, 1 part of silicic acid, 1 part of bamboo charcoal, 0.5 part of zeolite and 0.002 part of additive into a mixer in sequence, and fully stirring to uniformly mix the materials;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.20MPa, and the bending strength is 4.71 MPa.
Example nine
The raw materials of the ecological straw board comprise the following components in parts by mass:
80 parts of straw, 15 parts of bamboo charcoal, 8 parts of zeolite, 20 parts of magnesium oxide, 10 parts of aluminum oxide, 12 parts of silicic acid, 20 parts of calcium oxide, 0.009 parts of additive and 12 parts of water.
The additive comprises sodium silicate, sodium stearate and sodium dodecyl sulfate, and the mass ratio of the components is 3: 2: 1, the granularity of zeolite is 80 meshes, the granularity of bamboo charcoal is 100 meshes, and the granularity of calcium oxide, magnesium oxide and aluminum oxide is 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 20 parts of calcium oxide, 20 parts of magnesium oxide, 10 parts of aluminum oxide and 12 parts of water into a mixer, and fully and uniformly stirring;
after 3.2min, sequentially adding 80 parts of crushed straw powder, 12 parts of silicic acid, 15 parts of bamboo charcoal, 8 parts of zeolite and 0.009 parts of additive into a mixer for fully stirring to uniformly mix;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.82MPa, and the bending strength is 4.30 MPa.
Example ten
The raw materials of the ecological straw board comprise the following components in parts by mass:
50 parts of straw, 3.997 parts of bamboo charcoal, 4 parts of zeolite, 12 parts of magnesium oxide, 6 parts of aluminum oxide, 4 parts of silicic acid, 10 parts of calcium oxide and 10 parts of water.
The particle size of the zeolite is 80 meshes, the particle size of the bamboo charcoal is 100 meshes, and the particle sizes of the calcium oxide, the magnesium oxide and the aluminum oxide are all 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 10 parts of calcium oxide, 12 parts of magnesium oxide, 6 parts of aluminum oxide and 10 parts of water into a mixer, and fully and uniformly stirring;
after 3.2min, sequentially adding 50 parts of crushed straw powder, 4 parts of silicic acid, 3.997 parts of bamboo charcoal and 4 parts of zeolite into a mixer for fully stirring to uniformly mix the materials;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.14MPa, and the bending strength is 4.23 MPa.
Example nine
The raw materials of the ecological straw board comprise the following components in parts by mass:
42 parts of straw, 1 part of bamboo charcoal, 2 parts of zeolite, 1 part of magnesium oxide, 4 parts of aluminum oxide, 1 part of silicic acid, 2 parts of calcium oxide and 6 parts of water.
The particle size of the zeolite is 80 meshes, the particle size of the bamboo charcoal is 100 meshes, and the particle sizes of the calcium oxide, the magnesium oxide and the aluminum oxide are all 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 2 parts of calcium oxide, 1 part of magnesium oxide, 4 parts of aluminum oxide and 6 parts of water into a mixer, and fully and uniformly stirring;
after 3.2min, adding 42 parts of crushed straw powder, 1 part of silicic acid, 1 part of bamboo charcoal and 2 parts of zeolite into a mixer in sequence, and fully stirring to uniformly mix the materials;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.02MPa, and the bending strength is 4.30 MPa.
Example ten
The raw materials of the ecological straw board comprise the following components in parts by mass:
80 parts of straw, 15 parts of bamboo charcoal, 8 parts of zeolite, 20 parts of magnesium oxide, 10 parts of aluminum oxide, 12 parts of silicic acid, 20 parts of calcium oxide and 12 parts of water.
The particle size of the zeolite is 80 meshes, the particle size of the bamboo charcoal is 100 meshes, and the particle sizes of the calcium oxide, the magnesium oxide and the aluminum oxide are all 300 meshes.
The specific preparation method of the ecological straw board comprises the following steps:
1. selecting high-quality straw stalks, and crushing the straw stalks until the granularity is 50 meshes;
2. adding 20 parts of calcium oxide, 20 parts of magnesium oxide, 10 parts of aluminum oxide and 12 parts of water into a mixer, and fully and uniformly stirring;
after 3.2min, sequentially adding 80 parts of crushed straw powder, 12 parts of silicic acid, 15 parts of bamboo charcoal and 8 parts of zeolite into a mixer for fully stirring to uniformly mix;
4. manufacturing a slab with a certain shape on a plate forming machine by using the mixture;
5. and standing the plate blank for 24 hours to obtain the high-performance ecological straw plate.
The obtained ecological straw board is subjected to mechanical strength test by adopting a DYE-300KN digital compression and bending testing machine, wherein the compression strength is 4.30MPa, and the bending strength is 4.11 MPa.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (6)
1. The inorganic adhesive for preparing the straw board is characterized by comprising the following components in parts by weight:
6-12 parts of magnesium oxide;
5-8 parts of aluminum oxide;
5-10 parts of calcium oxide;
4-9 parts of silicic acid;
0.5-5 parts of zeolite;
3-10 parts of bamboo charcoal;
0.003 to 0.009 part of additive;
the additive is sodium silicate, sodium stearate and sodium dodecyl sulfate according to the weight ratio of 3: (0.1-2): (0.1-0.5) by mass ratio.
2. The inorganic adhesive as claimed in claim 1, wherein the particle size of the bamboo charcoal is 50-150 meshes; the particle size of the zeolite is 50-150 meshes; the particle size of the calcium oxide and/or the magnesium oxide and/or the aluminum oxide is 200-400 meshes.
3. An ecological straw board, the raw materials of which comprise the inorganic adhesive as claimed in claim 1 or 2, and further comprise the following components in parts by weight:
42-80 parts of straw;
6-12 parts of water.
4. The ecological straw board of claim 3, wherein the straw is one or more of corn straw, wheat straw and rice straw, and the size of the straw is 20-150 mesh.
5. A method for preparing the ecological straw board as claimed in claim 3, which comprises the following steps: mixing straws, water and an inorganic adhesive, and forming into the ecological straw board.
6. The method for preparing ecological straw boards as claimed in claim 5, comprising the following steps:
firstly, mixing calcium oxide, magnesium oxide, aluminum oxide and water according to selected parts by weight;
and secondly, adding crushed straws into the mixture obtained in the first step, adding silicic acid, bamboo charcoal, zeolite and an additive into the mixture, and mixing to obtain a mixture of the inorganic adhesive and the straws, wherein the additive accounts for 0.003-0.009 parts by mass, and the additive is sodium silicate, sodium stearate and sodium dodecyl sulfate according to the ratio of 3: (0.1-2): (0.1-0.5) by mass ratio;
thirdly, forming the mixture obtained in the second step on a plate forming machine to prepare a plate blank;
and fourthly, standing the slab obtained in the third step to obtain the ecological straw board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095863.4A CN109749632B (en) | 2019-01-31 | 2019-01-31 | Inorganic adhesive for preparing straw board, ecological straw board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095863.4A CN109749632B (en) | 2019-01-31 | 2019-01-31 | Inorganic adhesive for preparing straw board, ecological straw board and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109749632A CN109749632A (en) | 2019-05-14 |
| CN109749632B true CN109749632B (en) | 2021-05-18 |
Family
ID=66407262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910095863.4A Active CN109749632B (en) | 2019-01-31 | 2019-01-31 | Inorganic adhesive for preparing straw board, ecological straw board and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109749632B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037701A (en) * | 2019-11-28 | 2020-04-21 | 南阳师范学院 | Ecological environment-friendly assembled building wallboard and wet preparation process thereof |
| CN111070370A (en) * | 2019-11-28 | 2020-04-28 | 南阳师范学院 | Ecological environment-friendly decorative plate and wet-method plate manufacturing process thereof |
| CN111116096A (en) * | 2019-11-28 | 2020-05-08 | 南阳师范学院 | Novel ecological environment-friendly assembly type building material and wet manufacturing process thereof |
| CN111056775A (en) * | 2019-11-28 | 2020-04-24 | 南阳师范学院 | Straw artificial board and wet process manufacturing process thereof |
| CN112694283B (en) * | 2021-01-20 | 2023-03-17 | 清远金谷智联环保产业研究院有限公司 | Artificial stone and method for preparing artificial stone by utilizing solid hazardous wastes |
| CN114833912B (en) * | 2022-04-06 | 2024-01-26 | 千年舟新材科技集团股份有限公司 | Straw composite board and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247178A (en) * | 1988-08-09 | 1990-02-16 | Nippon Chem Ind Co Ltd | Inorganic adhesive |
| KR20120003133A (en) * | 2010-07-02 | 2012-01-10 | 조용호 | Inorganic adhesive composition and manufacturing method for building materials |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856834A (en) * | 2009-04-13 | 2010-10-13 | 王海燕 | Method for preparing novel straw stalk fiber boards |
| CN104449411B (en) * | 2014-12-10 | 2017-01-25 | 中南林业科技大学 | Adhesive and preparation method thereof as well as application of adhesive in vegetable fiberboard or artificial board |
| CN106317931B (en) * | 2016-08-24 | 2020-07-10 | 河南省高新技术实业有限公司 | Biomass flame-retardant heat-insulation plate and preparation method thereof |
-
2019
- 2019-01-31 CN CN201910095863.4A patent/CN109749632B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247178A (en) * | 1988-08-09 | 1990-02-16 | Nippon Chem Ind Co Ltd | Inorganic adhesive |
| KR20120003133A (en) * | 2010-07-02 | 2012-01-10 | 조용호 | Inorganic adhesive composition and manufacturing method for building materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109749632A (en) | 2019-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109749632B (en) | Inorganic adhesive for preparing straw board, ecological straw board and preparation method thereof | |
| KR100779632B1 (en) | Functional cornstalk board and preparation method thereof | |
| US5348621A (en) | Low bulk and light-weight products | |
| CN101058207A (en) | Maize stalk and/or wheat stalk composite board and its manufacturing method | |
| CN101224965A (en) | Biomass composite material wall modules and processing technology thereof | |
| CN103214865A (en) | Carbon fibre wood electromagnetic shielding material and preparation method thereof | |
| CN103254840A (en) | Wood adhesive active filler and using method thereof | |
| AU2020100659A4 (en) | Adhesive, preparation method thereof, and use of the same in vegetable fiberboard or artificial board | |
| CN102501288A (en) | Method for preparing environment-friendly urea-formaldehyde resin adhesive particle plate of corn straw skins | |
| CN102477170B (en) | Natural plant fiber reinforced starch-based composite material and its preparation method | |
| CN102304280B (en) | Formaldehyde-free zero-carbon environmentally-friendly board synthetized by circuit board and manufacture technology thereof | |
| Osarenmwinda et al. | Development of composite material from agricultural wastes | |
| CN116947338A (en) | Composite biomass binder modified alkali-activated cementing material and preparation method thereof | |
| CN106675069A (en) | Fungus-based biomass fireproof material taking rice straw as main ingredient and preparation method thereof | |
| CN114833912B (en) | Straw composite board and manufacturing method thereof | |
| CN102321439A (en) | Additive agent of urea-formaldehyde resin adhesive and preparation method thereof | |
| CN107498686A (en) | Green Wheat Straw sheet production method | |
| CN107805526B (en) | Briquette composite binder and preparation method and application thereof | |
| CN110510925B (en) | Water-proof, fire-proof and moth-proof plant fiber and forming process thereof | |
| CN112809868A (en) | Plate and preparation method thereof | |
| CN1123732A (en) | Artificial wooden material and its manufacture | |
| CN85106931B (en) | Adhesional crushed material boards by molasses glue | |
| CN101343168A (en) | Straw gypsum composite board and preparation thereof | |
| Pirayesh et al. | Optimum condition of manufacturing wood-based composite from mixture of wood particles/walnut and almond shells | |
| CN111331703A (en) | Medium-density board and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |