CN102442813A - Cotton stalk bark fiber reinforced gypsum composite material and preparation method thereof - Google Patents
Cotton stalk bark fiber reinforced gypsum composite material and preparation method thereof Download PDFInfo
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- CN102442813A CN102442813A CN2011103123423A CN201110312342A CN102442813A CN 102442813 A CN102442813 A CN 102442813A CN 2011103123423 A CN2011103123423 A CN 2011103123423A CN 201110312342 A CN201110312342 A CN 201110312342A CN 102442813 A CN102442813 A CN 102442813A
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- cotton stalk
- stalk bark
- bark fibre
- auxiliary agent
- gypsum
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a cotton stalk bark fiber reinforced gypsum composite material and a preparation method thereof. The cotton stalk bark fiber reinforced gypsum composite material comprises the following ingredients: 90-100 weight portions of gypsum material, 10-15 weight portions of cotton stalk bark fiber, 5-10 weight portions of filling material, 1-4 weight portions of auxiliary agent, 1-10 weight portions of lubricant, and 20-30 weight portions of water. The preparation method comprises the following steps: cutting cotton stalks by rolling, peeling cotton stalk bark fibers out and crushing by a crusher, removing dust, then immersing cotton stalk bark fibers in a low alkali solution for modification, taking out the modified cotton stalk bark fibers and draining, then dissolving auxiliary agent in water, and then uniformly mixing gypsum and the modified cotton stalk bark fibers, injecting the aqueous solution containing the auxiliary agent, fully mixing and then adding in a die, curing molding, demolding 2-3 hours later, and drying at a temperature of 40-50 DEG C to obtain the cotton stalk bark fiber reinforced gypsum composite material. According to the invention, the flexural strength of a gypsum product is increased, and simultaneously the compressive strength of gypsum is reduced.
Description
Technical field
The present invention relates to the Composite Preparation field, be specifically related to a kind of cotton stalk bark fibre and strengthen composite gypsum material and preparation method thereof.
Background technology
Gypsum and cement, lime are referred to as three big gelling material, have light weight, characteristics such as sound isolating and heat insulating performance is good, dimensional stability is good, fire resistance is good, environmental protection and energy saving.Though gypsum has more excellent properties, its folding strength is lower thereby often adopt the strongthener of various fibers as gypsum.At present, short glass fiber commonly used strengthens gypsum in the industrial production, and spun glass is a regenerated fiber, and cost height and smooth surface cause a little less than the interface keying action between fiber and the plaster matrix.
The agricultural plants aboundresources of China, the comparatively coarse and wide material sources in agronomic crop fibre surface, with low cost, cotton stalk bark fibre is exactly one of very high agronomic crop fibre of a kind of intensity own, but uses as gypsum enhanced material, and research is fewer at present.
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Summary of the invention
Technical problem to be solved of the present invention provides that a kind of cost is lower, technology is simple, the cotton stalk bark fibre of each item good mechanical properties strengthens composite gypsum material and preparation method thereof.
Technical scheme of the present invention is: a kind of cotton stalk bark fibre strengthens composite gypsum material, and the ratio of quality and the number of copies of each component is in the raw material: gypsum material 90-100 part, cotton stalk bark fibre 10-15 part, packing material 5-10 part, auxiliary agent 1-4 part, lubricant 1-10 part, water 20-30 part.
In preferred embodiment of the present invention, described cotton stalk bark fibre is long to be 9-15mm.
In preferred embodiment of the present invention, described packing material is one or more mixing in flyash, vermiculite power, perlite powder or the sand.
In preferred embodiment of the present invention, described auxiliary agent is sulfonated lignin.
In preferred embodiment of the present invention, described lubricant is one or more mixing in Triple Pressed Stearic Acid, StNa or the polyethylene wax.
The invention also discloses a kind of preparation method of cotton stalk bark fibre enhancing composite gypsum material, described preparation method is: cotton stalk is carried out roll-in cut off, with kibbler cotton stalk bark fibre is peeled off pulverizing; And remove dust modification in the low alkaline solution of cotton stalk bark fibre immersion, taking-up drains, and auxiliary agent is dissolved in the water again; Then with the cotton stalk bark fibre uniform mixing after gypsum and the modification; And inject the aqueous solution that contains auxiliary agent, behind thorough mixing, add in the mould curing molding; The 2-3 h demoulding is dried to such an extent that cotton stalk bark fibre strengthens composite gypsum material for 40-50 ℃.
In preferred embodiment of the present invention, described is that the immersion time is 0.5-1h through in the sodium hydroxide solution with cotton stalk bark fibre immersion 5% with modification in the low alkaline solution of cotton stalk bark fibre immersion.
Owing to take technique scheme; Cotton stalk bark fibre of the present invention strengthens the folding strength that composite gypsum material has improved plastering; Reduced the ultimate compression strength of gypsum simultaneously, under the situation that keeps the plastering water tolerance not descend, water-intake rate of the present invention is improved; Strengthen composite gypsum material owing to adopt the agricultural by-products cotton stalk to produce cotton stalk bark fibre simultaneously, meet the sharp useless environmental protection of country, the policy of recycling economy has good social benefit and environmental benefit.
Embodiment
Below in conjunction with embodiment the present invention is done further to set forth in detail.
Embodiment 1
A kind of cotton stalk bark fibre strengthens composite gypsum material, and the ratio of quality and the number of copies of each component is in the raw material: 90 parts of gypsum materials, length are 1 part of 1 part of 5 parts of 10 parts of cotton stalk bark fibres, packing materials, sulfonated lignin, the lubricant of 9-15mm, 20 parts in water.Wherein, packing material is one or more mixing in flyash, vermiculite power, perlite powder or the sand; Lubricant is one or more mixing in Triple Pressed Stearic Acid, StNa or the polyethylene wax.
Cotton stalk is carried out roll-in cut off, cotton stalk bark fibre is peeled off pulverizing, and remove dust modification in the low alkaline solution of cotton stalk bark fibre immersion with kibbler; In the logical sodium hydroxide solution with cotton stalk bark fibre immersion 5%, the immersion time is 0.5h, and taking-up drains; Again auxiliary agent is dissolved in the water,, and injects the aqueous solution that contains auxiliary agent then with the cotton stalk bark fibre uniform mixing after gypsum and the modification; Behind thorough mixing, add in the mould; Curing molding, the 2 h demouldings are dried to such an extent that cotton stalk bark fibre strengthens composite gypsum material for 40-50 ℃.
Embodiment 2
A kind of cotton stalk bark fibre strengthens composite gypsum material, and the ratio of quality and the number of copies of each component is in the raw material: 93 parts of gypsum materials, length are 3 parts of 2 parts of 7 parts of 12 parts of cotton stalk bark fibres, packing materials, sulfonated lignin, the lubricants of 9-15mm, 23 parts in water.Wherein, packing material is one or more mixing in flyash, vermiculite power, perlite powder or the sand; Lubricant is one or more mixing in Triple Pressed Stearic Acid, StNa or the polyethylene wax.
Cotton stalk is carried out roll-in cut off, cotton stalk bark fibre is peeled off pulverizing, and remove dust modification in the low alkaline solution of cotton stalk bark fibre immersion with kibbler; In the logical sodium hydroxide solution with cotton stalk bark fibre immersion 5%, the immersion time is 0.5h, and taking-up drains; Again auxiliary agent is dissolved in the water,, and injects the aqueous solution that contains auxiliary agent then with the cotton stalk bark fibre uniform mixing after gypsum and the modification; Behind thorough mixing, add in the mould; Curing molding, the 2 h demouldings are dried to such an extent that cotton stalk bark fibre strengthens composite gypsum material for 40-50 ℃.
Embodiment 3
A kind of cotton stalk bark fibre strengthens composite gypsum material, and the ratio of quality and the number of copies of each component is in the raw material: 98 parts of gypsum materials, length are 6 parts of 3 parts of 8 parts of 13 parts of cotton stalk bark fibres, packing materials, sulfonated lignin, the lubricants of 9-15mm, 25 parts in water.Wherein, packing material is one or more mixing in flyash, vermiculite power, perlite powder or the sand; Lubricant is one or more mixing in Triple Pressed Stearic Acid, StNa or the polyethylene wax.
Cotton stalk is carried out roll-in cut off, cotton stalk bark fibre is peeled off pulverizing, and remove dust modification in the low alkaline solution of cotton stalk bark fibre immersion with kibbler; In the logical sodium hydroxide solution with cotton stalk bark fibre immersion 5%, the immersion time is 1h, and taking-up drains; Again auxiliary agent is dissolved in the water,, and injects the aqueous solution that contains auxiliary agent then with the cotton stalk bark fibre uniform mixing after gypsum and the modification; Behind thorough mixing, add in the mould; Curing molding, the 3 h demouldings are dried to such an extent that cotton stalk bark fibre strengthens composite gypsum material for 40-50 ℃.
Embodiment 4
A kind of cotton stalk bark fibre strengthens composite gypsum material, and the ratio of quality and the number of copies of each component is in the raw material: 100 parts of gypsum materials, length are 10 parts of 4 parts of 10 parts of 15 parts of cotton stalk bark fibres, packing materials, sulfonated lignin, the lubricants of 9-15mm, 30 parts in water.Wherein, packing material is one or more mixing in flyash, vermiculite power, perlite powder or the sand; Lubricant is one or more mixing in Triple Pressed Stearic Acid, StNa or the polyethylene wax.
Cotton stalk is carried out roll-in cut off, cotton stalk bark fibre is peeled off pulverizing, and remove dust modification in the low alkaline solution of cotton stalk bark fibre immersion with kibbler; In the logical sodium hydroxide solution with cotton stalk bark fibre immersion 5%, the immersion time is 1h, and taking-up drains; Again auxiliary agent is dissolved in the water,, and injects the aqueous solution that contains auxiliary agent then with the cotton stalk bark fibre uniform mixing after gypsum and the modification; Behind thorough mixing, add in the mould; Curing molding, the 3h demoulding is dried to such an extent that cotton stalk bark fibre strengthens composite gypsum material for 40-50 ℃.
The experimental result of embodiment 1-embodiment 4 is seen table 1:
Table 1
| Title | Ultimate compression strength (MPa) | Folding pressure degree (MPa) | Water-intake rate (%) | Coefficient of softening |
| Embodiment 1 | 5.51 | 3.97 | 29.1 | 0.275 |
| Embodiment 2 | 5.54 | 3.95 | 29.5 | 0.271 |
| Embodiment 3 | 5.53 | 3.98 | 29.4 | 0.271 |
| Embodiment 4 | 5.52 | 3.96 | 29.0 | 0.274 |
The above; Be merely embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (7)
1. a cotton stalk bark fibre strengthens composite gypsum material; It is characterized in that the ratio of quality and the number of copies of each component is in the raw material: gypsum material 90-100 part, cotton stalk bark fibre 10-15 part, packing material 5-10 part, auxiliary agent 1-4 part, lubricant 1-10 part, water 20-30 part.
2. cotton stalk bark fibre according to claim 1 strengthens composite gypsum material, it is characterized in that, described cotton stalk bark fibre is long to be 9-15mm.
3. cotton stalk bark fibre according to claim 1 strengthens composite gypsum material, it is characterized in that described packing material is one or more mixing in flyash, vermiculite power, perlite powder or the sand.
4. cotton stalk bark fibre according to claim 1 strengthens composite gypsum material, it is characterized in that described auxiliary agent is sulfonated lignin.
5. cotton stalk bark fibre according to claim 1 strengthens composite gypsum material, it is characterized in that described lubricant is one or more mixing in Triple Pressed Stearic Acid, StNa or the polyethylene wax.
6. the preparation method of a cotton stalk bark fibre enhancing composite gypsum material is characterized in that described preparation method is: cotton stalk is carried out roll-in cut off; With kibbler cotton stalk bark fibre is peeled off pulverizing, and remove dust modification in the low alkaline solution of cotton stalk bark fibre immersion, taking-up drains; Again auxiliary agent is dissolved in the water,, and injects the aqueous solution that contains auxiliary agent then with the cotton stalk bark fibre uniform mixing after gypsum and the modification; Behind thorough mixing, add in the mould; Curing molding, the 2-3 h demoulding is dried to such an extent that cotton stalk bark fibre strengthens composite gypsum material for 40-50 ℃.
7. cotton stalk bark fibre according to claim 6 strengthens the preparation method of composite gypsum material; It is characterized in that; Described is that the immersion time is 0.5-1h through in the sodium hydroxide solution with cotton stalk bark fibre immersion 5% with modification in the low alkaline solution of cotton stalk bark fibre immersion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103123423A CN102442813A (en) | 2011-10-17 | 2011-10-17 | Cotton stalk bark fiber reinforced gypsum composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103123423A CN102442813A (en) | 2011-10-17 | 2011-10-17 | Cotton stalk bark fiber reinforced gypsum composite material and preparation method thereof |
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| CN102442813A true CN102442813A (en) | 2012-05-09 |
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| CN2011103123423A Pending CN102442813A (en) | 2011-10-17 | 2011-10-17 | Cotton stalk bark fiber reinforced gypsum composite material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935524A (en) * | 2017-11-01 | 2018-04-20 | 泰山石膏（铜陵）有限公司 | The preparation method of the desulfurated plaster composite material of wheat straw fiber is mixed after a kind of |
| CN109467950A (en) * | 2018-10-26 | 2019-03-15 | 杭州中齐新材料科技有限公司 | A kind of environment-friendly composite material for building and preparation method thereof |
| CN111378292A (en) * | 2020-02-25 | 2020-07-07 | 贵州益全佳科技有限公司 | Brightening lubricant and preparation method thereof |
| CN115090656A (en) * | 2022-05-13 | 2022-09-23 | 北京华能长江环保科技研究院有限公司 | Comprehensive disposal system and comprehensive disposal method for fan blades |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523062A (en) * | 2003-09-11 | 2004-08-25 | 詹子亮 | Composition and process for producing cotton stalk fiber high-density decorative plate |
| CN1948216A (en) * | 2006-09-30 | 2007-04-18 | 孝感市天然居墙材有限责任公司 | Production method of plant fiber gypsum slag hollow building block |
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2011
- 2011-10-17 CN CN2011103123423A patent/CN102442813A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523062A (en) * | 2003-09-11 | 2004-08-25 | 詹子亮 | Composition and process for producing cotton stalk fiber high-density decorative plate |
| CN1948216A (en) * | 2006-09-30 | 2007-04-18 | 孝感市天然居墙材有限责任公司 | Production method of plant fiber gypsum slag hollow building block |
Non-Patent Citations (2)
| Title |
|---|
| 张卫豪等: "棉秆皮纤维增强石膏复合材料的性能研究", 《砖瓦》 * |
| 王裕银等: "碱处理对秸秆纤维石膏复合材料力学性能的影响", 《墙材革新与建筑节能》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935524A (en) * | 2017-11-01 | 2018-04-20 | 泰山石膏（铜陵）有限公司 | The preparation method of the desulfurated plaster composite material of wheat straw fiber is mixed after a kind of |
| CN109467950A (en) * | 2018-10-26 | 2019-03-15 | 杭州中齐新材料科技有限公司 | A kind of environment-friendly composite material for building and preparation method thereof |
| CN109467950B (en) * | 2018-10-26 | 2021-06-29 | 深圳市德勤装饰工程有限公司 | Environment-friendly composite material for building and preparation method thereof |
| CN111378292A (en) * | 2020-02-25 | 2020-07-07 | 贵州益全佳科技有限公司 | Brightening lubricant and preparation method thereof |
| CN115090656A (en) * | 2022-05-13 | 2022-09-23 | 北京华能长江环保科技研究院有限公司 | Comprehensive disposal system and comprehensive disposal method for fan blades |
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Application publication date: 20120509 |