CN106543938A - A kind of double-component chemical modification straw aldehyde-free cement and preparation method thereof - Google Patents
A kind of double-component chemical modification straw aldehyde-free cement and preparation method thereof Download PDFInfo
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- CN106543938A CN106543938A CN201510606502.3A CN201510606502A CN106543938A CN 106543938 A CN106543938 A CN 106543938A CN 201510606502 A CN201510606502 A CN 201510606502A CN 106543938 A CN106543938 A CN 106543938A
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- straw
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- wood adhesive
- formaldehyde
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- 239000010902 straw Substances 0.000 title claims abstract description 67
- 238000007385 chemical modification Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000004568 cement Substances 0.000 title description 2
- 239000000843 powder Substances 0.000 claims abstract description 66
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 230000001070 adhesive Effects 0.000 claims abstract description 27
- 239000002023 wood Substances 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000011256 inorganic filler Substances 0.000 claims abstract description 13
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 13
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 13
- 239000000178 monomer Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- XZMCDFZZKTWFGF-UHFFFAOYSA-N carbodiimide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 6
- 150000002978 peroxides Chemical class 0.000 claims abstract description 5
- 239000003381 stabilizer Substances 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 102000004190 Enzymes Human genes 0.000 claims description 10
- 108090000790 Enzymes Proteins 0.000 claims description 10
- PZZYQPZGQPZBDN-UHFFFAOYSA-N Aluminium silicate Chemical group O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 8
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 claims description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims description 8
- 229960001826 dimethylphthalate Drugs 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 7
- 235000005822 corn Nutrition 0.000 claims description 7
- 235000005824 corn Nutrition 0.000 claims description 7
- 150000002432 hydroperoxides Chemical class 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- HRPVXLWXLXDGHG-UHFFFAOYSA-N acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000004220 aggregation Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 238000004137 mechanical activation Methods 0.000 claims description 3
- 241000209149 Zea Species 0.000 claims description 2
- -1 diacyl peroxide class compound Chemical class 0.000 claims description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-M hydroperoxide group Chemical group [O-]O MHAJPDPJQMAIIY-UHFFFAOYSA-M 0.000 claims 1
- ODGAOXROABLFNM-UHFFFAOYSA-N Polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 abstract description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 abstract description 3
- 230000003000 nontoxic Effects 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 229960004279 formaldehyde Drugs 0.000 description 17
- 235000019256 formaldehyde Nutrition 0.000 description 17
- 240000008042 Zea mays Species 0.000 description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 210000000867 Larynx Anatomy 0.000 description 1
- 210000001331 Nose Anatomy 0.000 description 1
- 210000003800 Pharynx Anatomy 0.000 description 1
- SOGAXMICEFXMKE-UHFFFAOYSA-N butyl 2-methylprop-2-enoate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic Effects 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000002147 killing Effects 0.000 description 1
- 230000003908 liver function Effects 0.000 description 1
- 210000000056 organs Anatomy 0.000 description 1
- 230000002685 pulmonary Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Abstract
Entitled double-component modified straw powder non-formaldehyde wood adhesive of the present invention and preparation method thereof.Belong to double-component chemical modification powder of straw non-formaldehyde wood adhesive technical field.It mainly solves the problems, such as that the product of existing use urea-formaldehyde resin adhesive manufacture can continuously discharge formaldehyde.It is mainly characterized by：Comprising host component：45% ~ 55%Wt is at least containing 90% chemical modification powder of straw monomer, 0% ~ 20%Wt vinyl monomers, 0% ~ 5%Wt toughener, 0.1% ~ 3.0%Wt peroxide, 0% ~ 1% stabilizer, 0% ~ 30%Wt inorganic fillers；Curing agent component：40% ~ 90%Wt at least contains effective Carbimide. 25-30% contents；Host and firming agent proportioning are 1:0.1-0.3.The present invention have high solids content, low viscosity, high activity and it is nontoxic the characteristics of, be widely used in Furniture manufacture and interior decoration etc..
Description
Technical field
The invention belongs to double-component modified straw powder non-formaldehyde wood adhesive technical field, and in particular to a kind of excellent performance, nothing has double-component modified straw powder non-formaldehyde wood adhesive of formaldehyde components and preparation method thereof.
Background technology
China's Wood-based Panel Production overwhelming majority is applied on Furniture manufacture and interior decoration, and adhesive used by the manufacture of all kinds of indoor type wood-based plates is mainly urea-formaldehyde resin adhesive, the high problem of generally existing free formaldehyde release.As the product that manufactured using urea-formaldehyde resin adhesive can continuously release formaldehyde, formaldehyde is the toxic gas with intense irritation, it not only pollutes environment, and the organ such as the eye to people, nose, larynx has strong impulse, causes pulmonary function, liver function, immunologic dysfunction.Therefore the pollution of urea-formaldehyde resin adhesive free formaldehyde and harm problem receive much concern.Specify for this in the world, building industry using wood-based plate have to comply with E1 level standards.
Lived in the formaldehyde pollution environment of high concentration for a long time, various diseases can be produced, such as throat inflammation damages respiratory tract, and serious can be carcinogenic, is living environment：" Health Killer ".Nearest authoritative inquiry shows, in the city of China, after " coal smoke type ", " photochemical fog type " pollution, modern falls into the third party's pollution period in " room air pollution ", and cause room air pollution most serious is adhesive, wood-based plate, coating successively, therefore developing environment-friendly adhesive has become inevitable trend, becomes the new focus in Study on Adhesive field.
The content of the invention
A kind of toxicity that the present invention is produced to human body for Form aldehyde release, there is provided the double-component chemical modification powder of straw non-formaldehyde wood adhesive of excellent performance.
Technical specification and performance requirement of the country to wood adhesive are not only reached with the wood adhesive that the present invention is prepared, and production unit need not be changed in equipment, technological parameter the same terms produce up to the timber-work of national standard.A further object of the present invention is to provide a kind of method for preparing above-mentioned double-component chemical modification powder of straw non-formaldehyde wood adhesive.
The present invention technical solution be：A kind of double-component modified straw powder non-formaldehyde wood adhesive, it is characterised in that：
（1）Host component：45% ~ 55%Wt is at least containing 90% chemical modification powder of straw monomer, 0% ~ 20%Wt vinyl monomers, 0% ~ 5%Wt toughener, 0.1% ~ 3.0%Wt peroxide, 0% ~ 1% stabilizer, 0% ~ 30%Wt inorganic fillers；
（2）Curing agent component：40% ~ 90%Wt at least contains effective Carbimide. 25-30% contents；
（1）Host and firming agent proportioning are 1:0.1-0.3.
Corn stalk powder described in the technical solution of present invention mechanical activation under 120-140 DEG C of high temperature, their crystalline texture are destroyed, and are transformed into amorphous state by polycrystalline state；, from irregular bulky grain structure to the aggregation reunited by numerous fine particles, soak time is longer, and the apparent viscosity of powder of straw is lower, with good mobility for the granule-morphology of powder of straw.
The product of Jing mechanical activations and chemical modification described in the technical solution of the present invention, can obtain>50% high solids content, the low viscosity of 300mPa..S, highly active powder of straw product.
Vinyl monomer described in the technical solution of the present invention is VAM, styrene monomer, acrylamide, acrylic monomerss or its mixture.
Firming agent described in the technical solution of the present invention is polymer MDI compounds, its effective Carbimide. 25-30% content.
Peroxide described in the technical solution of the present invention is hydroperoxide type compound, diacyl peroxide class compound or its mixture.
Toughener described in the technical solution of the present invention is Petropols, makes dimethyl phthalate or its mixture.
Inorganic filler described in the technical solution of the present invention is Kaolin, aluminium silicate.
The present invention prepares the method for double-component modified straw powder non-formaldehyde wood adhesive：It is characterized in that the product of described Jing mechanical activations and chemical modification, can obtain>50% high solids content, the low viscosity of 300mPa..S, highly active powder of straw product vinyl monomer is VAM, styrene monomer, acrylamide, acrylic monomerss or its mixture, and the firming agent described in 0% ~ 30%Wt is polymer MDI compounds, its effective Carbimide. 25-30% content；0% ~ 30%Wt inorganic fillers are Kaolin, aluminium silicate；0% ~ 30%Wt toughener is Petropols, makes dimethyl phthalate or its mixture；Preparation method：In powder of straw reactor of the input equipped with steel ball, 2 ~ 4h is stirred under high temperature, it is allowed to uniformly amorphous state powder of straw, product is put in reactor again, adding water makes into 45% ~ 55Wt straw slurries, add 0.3%-0.8% powder of straw enzymes, lower treatment temperature 80-90 DEG C of stirring, process time 30-60min, the chemical modification powder of straw product of high reaction activity is obtained, 0-20% vinyl monomers are then put into, the hydroperoxide type compound of 0.1-3.0% reacts 1-2h in 50-70 DEG C, 0% ~ 30%Wt inorganic fillers are put into again, and 10 ~ 20min is stirred under room temperature.
The present invention is destroyed by corn stalk powder mechanical activation under 120-140 DEG C of high temperature, their crystalline texture, is transformed into amorphous state by polycrystalline state；, from irregular bulky grain structure to the aggregation reunited by numerous fine particles, soak time is longer, and the apparent viscosity of powder of straw is lower, with good mobility for the granule-morphology of powder of straw.The product of Jing mechanical activations and chemical modification, can obtain>50% high solids content, the low viscosity of 300mPa..S, highly active powder of straw product.The composite can be widely applied to Furniture manufacture and interior decoration etc..
Specific embodiment
Following enforcement and comparative example will be described in greater detail the present invention, but the present invention is not limited to this.
Embodiment 1：
Proportioning
Corn stalk powder
55%Wt
Powder of straw enzyme 0.5%Wt
Vinyl acetate
10%Wt
Butyl methacrylate 5%Wt
Dicumyl peroxide
0.5%Wt
Preparation method：
Host preparation method：In powder of straw reactor of the input equipped with steel ball, 2 ~ 4h is stirred under high temperature, it is allowed to uniformly amorphous state powder of straw, product is put in reactor again, adding water makes into 45% ~ 55Wt straw slurries, add 0.3%-0.8% powder of straw enzymes, lower treatment temperature 80-90 DEG C of stirring, process time 30-60min, the chemical modification powder of straw product of high reaction activity is obtained, 0-20% vinyl monomers are then put into, the hydroperoxide type compound of 0.1-3.0% reacts 1-2h in 50-70 DEG C, 0% ~ 30%Wt inorganic fillers are put into again, and 10 ~ 20min is stirred under room temperature.
Firming agent：The polymer grade MDI produced by Yantai Wan Hua companies：80%Wt, 30%Wt toughener is Petropols, dimethyl phthalate or its mixture, in input reactor, stirs 2h, make uniform liquid under room temperature.
During use, host and firming agent proportioning are 1:0.2
Performance test：Free formaldehyde is not detected, surface bonding intensity>1.15Mpa, dipping and stripping intensity<20Mpa
Embodiment 2：
Corn stalk powder 55%Wt
Powder of straw enzyme 0.5%Wt
Butyl acrylate
10%Wt
Styrene
5%Wt
Dicumyl peroxide
0.5%Wt
Host preparation method：In powder of straw reactor of the input equipped with steel ball, 2 ~ 4h is stirred under high temperature, it is allowed to uniformly amorphous state powder of straw, product is put in reactor again, adding water makes into 45% ~ 55Wt straw slurries, add 0.3%-0.8% powder of straw enzymes, lower treatment temperature 80-90 DEG C of stirring, process time 30-60min, the chemical modification powder of straw product of high reaction activity is obtained, 0-20% vinyl monomers are then put into, the hydroperoxide type compound of 0.1-3.0% reacts 1-2h in 50-70 DEG C, 0% ~ 30%Wt inorganic fillers are put into again, and 10 ~ 20min is stirred under room temperature.
Firming agent：The polymer grade MDI produced by Yantai Wan Hua companies：80%Wt, 30%Wt toughener is Petropols, dimethyl phthalate or its mixture, in input reactor, stirs 2h, make uniform liquid under room temperature.
During use, host and firming agent proportioning are 1:0.2
Performance test：Free formaldehyde is not detected, surface bonding intensity>0.98Mpa, dipping and stripping intensity<22Mpa
Embodiment 3：
Corn stalk powder
55%Wt
Powder of straw enzyme 0.5%Wt
Styrene 10%Wt
Acrylamide 5%Wt
Cumyl peroxide
0.5%Wt
Host preparation method：
In powder of straw reactor of the input equipped with steel ball, 2 ~ 4h is stirred under high temperature, it is allowed to uniformly amorphous state powder of straw, product is put in reactor again, adding water makes into 45% ~ 55Wt straw slurries, add 0.3%-0.8% powder of straw enzymes, lower treatment temperature 80-90 DEG C of stirring, process time 30-60min, the chemical modification powder of straw product of high reaction activity is obtained, 0-20% vinyl monomers are then put into, the hydroperoxide type compound of 0.1-3.0% reacts 1-2h in 50-70 DEG C, 0% ~ 30%Wt inorganic fillers are put into again, and 10 ~ 20min is stirred under room temperature.
Firming agent：The polymer grade MDI produced by Yantai Wan Hua companies：80%Wt, 30%Wt toughener is Petropols, dimethyl phthalate or its mixture, in input reactor, stirs 2h, make uniform liquid under room temperature.
During use, host and firming agent proportioning are 1:0.2
Performance test：Free formaldehyde is not detected, surface bonding intensity>1.02Mpa, dipping and stripping intensity<20Mpa
Embodiment 4：
Corn stalk powder
55%Wt
Powder of straw enzyme 0.5%Wt
Vinyl acetate
10%Wt
Butyl acrylate
5%Wt
Cumyl peroxide
0.5%Wt
Host preparation method：
In powder of straw reactor of the input equipped with steel ball, 2 ~ 4h is stirred under high temperature, it is allowed to uniformly amorphous state powder of straw, product is put in reactor again, adding water makes into 45% ~ 55Wt straw slurries, add 0.3%-0.8% powder of straw enzymes, lower treatment temperature 80-90 DEG C of stirring, process time 30-60min, the chemical modification powder of straw product of high reaction activity is obtained, 0-20% vinyl monomers are then put into, the hydroperoxide type compound of 0.1-3.0% reacts 1-2h in 50-70 DEG C, 0% ~ 30%Wt inorganic fillers are put into again, and 10 ~ 20min is stirred under room temperature.
Firming agent：The polymer grade MDI produced by Yantai Wan Hua companies：80%Wt, 30%Wt toughener is Petropols, dimethyl phthalate or its mixture, in input reactor, stirs 2h, make uniform liquid under room temperature.
During use, host and firming agent proportioning are 1:0.3
Performance test：Free formaldehyde is not detected, surface bonding intensity>1.25Mpa, dipping and stripping intensity<10Mpa.
Claims (9)
1. a kind of double-component modified straw powder non-formaldehyde wood adhesive, it is characterised in that：
Host component：45% ~ 55%Wt is at least containing 90% chemical modification powder of straw monomer, 0% ~ 20%Wt vinyl monomers, 0% ~ 5%Wt toughener, 0.1% ~ 3.0%Wt peroxide, 0% ~ 1% stabilizer, 0% ~ 30%Wt inorganic fillers；
Curing agent component：40% ~ 90%Wt at least contains effective Carbimide. 25-30% contents；
Host and firming agent proportioning are 1:0.1-0.3.
2. a kind of double-component modified straw powder non-formaldehyde wood adhesive according to belonging to claim 1, it is characterised in that：Described corn stalk powder mechanical activation under 120-140 DEG C of high temperature, their crystalline texture are destroyed, and are transformed into amorphous state by polycrystalline state；, from irregular bulky grain structure to the aggregation reunited by numerous fine particles, soak time is longer, and the apparent viscosity of powder of straw is lower, with good mobility for the granule-morphology of powder of straw.
3. a kind of double-component modified straw powder non-formaldehyde wood adhesive according to claim 1 and 2, it is characterised in that：The product of described Jing mechanical activations and chemical modification, can obtain>50% high solids content, the low viscosity of 300mPa..S, highly active powder of straw product.
4. a kind of double-component modified straw powder non-formaldehyde wood adhesive according to claim 1 and 2, it is characterised in that：Described vinyl monomer is VAM, styrene monomer, acrylamide, acrylic monomerss or its mixture.
5. a kind of double-component modified straw powder non-formaldehyde wood adhesive according to claim 1 and 2, it is characterised in that：Described firming agent is polymer MDI compounds, its effective Carbimide. 25-30% content.
6. a kind of double-component modified straw powder non-formaldehyde wood adhesive according to claim 1 and 2, it is characterised in that：Described peroxide is hydroperoxide type compound, diacyl peroxide class compound or its mixture.
7. a kind of double-component modified straw powder non-formaldehyde wood adhesive according to claim 1 and 2, it is characterised in that：Described toughener is Petropols, makes dimethyl phthalate or its mixture.
8. a kind of double-component modified straw powder non-formaldehyde wood adhesive according to claim 1 and 2, it is characterised in that：Described inorganic filler is Kaolin, aluminium silicate.
9. a kind of manufacture method for preparing the double-component modified straw powder non-formaldehyde wood adhesive described in claim 1, it is characterised in that：The product of described Jing mechanical activations and chemical modification, can obtain>50% high solids content, the low viscosity of 300mPa..S, highly active powder of straw product vinyl monomer is VAM, styrene monomer, acrylamide, acrylic monomerss or its mixture, and the firming agent described in 0% ~ 30%Wt is polymer MDI compounds, its effective Carbimide. 25-30% content；0% ~ 30%Wt inorganic fillers are Kaolin, aluminium silicate；0% ~ 30%Wt toughener is Petropols, makes dimethyl phthalate or its mixture；Preparation method：In powder of straw reactor of the input equipped with steel ball, 2 ~ 4h is stirred under high temperature, it is allowed to uniformly amorphous state powder of straw, product is put in reactor again, adding water makes into 45% ~ 55Wt straw slurries, add 0.3%-0.8% powder of straw enzymes, lower treatment temperature 80-90 DEG C of stirring, process time 30-60min, the chemical modification powder of straw product of high reaction activity is obtained, 0-20% vinyl monomers are then put into, the hydroperoxide type compound of 0.1-3.0% reacts 1-2h in 50-70 DEG C, 0% ~ 30%Wt inorganic fillers are put into again, and 10 ~ 20min is stirred under room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606502.3A CN106543938A (en) | 2015-09-22 | 2015-09-22 | A kind of double-component chemical modification straw aldehyde-free cement and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606502.3A CN106543938A (en) | 2015-09-22 | 2015-09-22 | A kind of double-component chemical modification straw aldehyde-free cement and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106543938A true CN106543938A (en) | 2017-03-29 |
Family
ID=58364683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510606502.3A Pending CN106543938A (en) | 2015-09-22 | 2015-09-22 | A kind of double-component chemical modification straw aldehyde-free cement and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106543938A (en) |
-
2015
- 2015-09-22 CN CN201510606502.3A patent/CN106543938A/en active Pending
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Application publication date: 20170329 |
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