CN104250877A - Method for preparing flame-retardant plant fiber nonwoven fabrics - Google Patents
Method for preparing flame-retardant plant fiber nonwoven fabrics Download PDFInfo
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- CN104250877A CN104250877A CN201410448171.0A CN201410448171A CN104250877A CN 104250877 A CN104250877 A CN 104250877A CN 201410448171 A CN201410448171 A CN 201410448171A CN 104250877 A CN104250877 A CN 104250877A
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Abstract
The invention provides a method for preparing flame-retardant plant fiber nonwoven fabrics. The method includes: enabling zinc borate, wheat straw fibers, zeolite powder and cavings to sequentially pass through a carding machine and an air netting machine to obtain meshed materials; mixing adhesives, water repellent and water to obtain steeping liquor; steeping the meshed materials into the steeping liquor to obtain a premade film; roasting the premade film at the temperature of 140-150 DEG C for 1-3min, and shaping at the temperature of 150-160 DEG C for 2-4min to obtain the plant fiber nonwoven fabrics for weed control. The zinc borate serving as a fire retardant is in synergistic action with the zeolite powder to guarantee excellent flame retardancy of the flame-retardant plant fiber nonwoven fabrics; the flame-retardant plant fiber nonwoven fabrics can be degraded completely, so that weed control is realized while environment pollution is avoided; in addition, firmness of the plant fiber nonwoven fabrics is improved owing to the cavings which are large-particle plant fibers.
Description
Technical field
The present invention relates to field of nonwoven fabric technology, particularly relate to a kind of preparation method of fire-retardant plant fiber nonwoven fabric.
Background technology
All the time, in agricultural production, anti-grass and weeding be all one time-consuming, require great effort, expensive work, vast agriculture practitioner, in order to reduce input, improves output, usually uses herbicide to carry out covering anti-grass, weeding.As everyone knows, herbicide is cured the symptoms, not the disease and is had stronger toxicity, and frequency of utilization is higher, and environmental pollution is serious.
In recent years, some have the agriculture practitioner of environmental consciousness and advanced eye, start to stop to use herbicide, and use the anti-careless film of plastics to cover anti-grass.The application of plastic film to increasing crop yield, increasing peasant income, promotes that the development function of agricultural production is very large as a kind of modern agricultural technology.But plastic film non-degradable, brings " white pollution " and make soil compaction, permeability is deteriorated, degradation problem under soil fertility, thus cost is high, contaminated environment, anti-careless weak effect.
For this reason, the market development multiple mulch film that can partially or completely degrade, as starch addition type degradable agricultural film, light degradation agricultural mulching etc.And starch addition type degradable agricultural film, light degradation agricultural mulching because of adopt main raw material be still plastics and chemical fibre, all can not eliminate " white pollution " problem in farmland completely, and specifically do not consider its fire protecting performance and combustibility, to such an extent as to when there is burning, the combustibles of surrounding of very easily igniting cause fire.The shortcomings such as therefore, it is high that the agricultural mulching of prior art exists cost, non-degradable, contaminated environment, flame retardant effect difference.
Summary of the invention
The technical problem that the present invention solves is the preparation method providing a kind of fire-retardant plant fiber nonwoven fabric, has good anti-careless effect, degradable, good flame retardation effect.
In view of this, the invention provides a kind of preparation method of fire-retardant plant fiber nonwoven fabric, comprise the following steps:
5 ~ 10 part by weight of boric acid zinc, 60 ~ 70 weight portion wheat stalk fibers, 5 ~ 10 weight portion zeolite powders and 10 ~ 20 weight portion cavings are obtained WEB successively after carding machine and random web-laying equipment;
5 ~ 10 parts by weight of binder, 2 ~ 3 weight portion water repellents and 80 ~ 90 weight parts waters are mixed, obtains maceration extract;
Described WEB is immersed in described maceration extract and bonds film forming, obtain prefabricated membrane;
Described prefabricated membrane is toasted 1 ~ 3 minute at 140 ~ 150 DEG C, then shapes 2 ~ 4 minutes at 150 ~ 160 DEG C, obtain weeding plant fiber non-woven fabric.
Preferably, following raw material is adopted:
6 ~ 9 part by weight of boric acid zinc, 65 ~ 70 weight portion wheat stalk fibers, 5 ~ 8 weight portion zeolite powders and 15 ~ 20 weight portion cavings.
Preferably, following raw material is adopted:
7 ~ 8 part by weight of boric acid zinc, 66 ~ 69 weight portion wheat stalk fibers, 6 ~ 7 weight portion zeolite powders and 16 ~ 19 weight portion cavings.
Preferably, the particle diameter of described zeolite powder is 100 ~ 200 microns.
Preferably, described maceration extract is prepared as follows:
5 ~ 7 parts by weight of binder, 2 weight portion water repellents and 80 ~ 85 weight parts waters are mixed, obtains maceration extract.
Preferably, described maceration extract is prepared as follows:
6 parts by weight of binder, 2 weight portion water repellents and 80 weight parts waters are mixed, obtains maceration extract.
Preferably, the temperature of baking is 144 ~ 148 DEG C.
Preferably, the time of baking is 2 minutes.
Preferably, the temperature of sizing is 155 ~ 158 DEG C.
Preferably, the time of sizing is 3 minutes.
The invention provides a kind of preparation method of fire-retardant plant fiber nonwoven fabric, comprise the following steps: 5 ~ 10 part by weight of boric acid zinc, 60 ~ 70 weight portion wheat stalk fibers, 5 ~ 10 weight portion zeolite powders and 10 ~ 20 weight portion cavings are obtained WEB successively after carding machine and random web-laying equipment; 5 ~ 10 parts by weight of binder, 2 ~ 3 weight portion water repellents and 80 ~ 90 weight parts waters are mixed, obtains maceration extract; Described WEB is immersed in described maceration extract and bonds film forming, obtain prefabricated membrane; Described prefabricated membrane is toasted 1 ~ 3 minute at 140 ~ 150 DEG C, then shapes 2 ~ 4 minutes at 150 ~ 160 DEG C, obtain weeding plant fiber non-woven fabric.Compared with prior art, fire-retardant plant fiber nonwoven fabric of the present invention, using Firebrake ZB as fire retardant, acts synergistically with zeolite powder, ensure that this fire-retardant plant fiber nonwoven fabric has good fire resistance.Secondly, this fire-retardant plant fiber nonwoven fabric can be degradable, free from environmental pollution, has the effect of weeding.Again, cavings, as bulky grain string, adds the firmness of plant fiber non-woven fabric.
Detailed description of the invention
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
The embodiment of the invention discloses a kind of preparation method of fire-retardant plant fiber nonwoven fabric, comprise the following steps:
5 ~ 10 part by weight of boric acid zinc, 60 ~ 70 weight portion wheat stalk fibers, 5 ~ 10 weight portion zeolite powders and 10 ~ 20 weight portion cavings are obtained WEB successively after carding machine and random web-laying equipment;
5 ~ 10 parts by weight of binder, 2 ~ 3 weight portion water repellents and 80 ~ 90 weight parts waters are mixed, obtains maceration extract;
Described WEB is immersed in described maceration extract and bonds film forming, obtain prefabricated membrane;
Described prefabricated membrane is toasted 1 ~ 3 minute at 140 ~ 150 DEG C, then shapes 2 ~ 4 minutes at 150 ~ 160 DEG C, obtain weeding plant fiber non-woven fabric.
Fire-retardant plant fiber nonwoven fabric of the present invention, using Firebrake ZB as fire retardant, acts synergistically with zeolite powder, ensure that this fire-retardant plant fiber nonwoven fabric has good fire resistance.Secondly, this fire-retardant plant fiber nonwoven fabric can be degradable, free from environmental pollution, has the effect of weeding.Again, cavings, as bulky grain string, adds the firmness of plant fiber non-woven fabric.
Firebrake ZB is a kind of non-halogen flame retardant of environment-friendly type, has the feature such as poison, low aqueous solubility, high thermal stability, granularity is little, proportion is little, good dispersion, is widely used in the fields such as plastics, rubber, coating as a kind of efficient flame-retarding agent.
Natural zeolite is the general name of moisture porous silicate, its crystalline texture is mainly made up of silicon-oxy tetrahedron, wherein part tetravalence silicon ion is replaced by trivalent aluminium ion, cause negative electrical charge superfluous, therefore there is the ion of alkali metal (or alkaline-earth metal) isoequilibrium electric charge in structure, in zeolite framework, have vestibule and the duct of certain pore size simultaneously.The present inventor finds, zeolite powder and Firebrake ZB have synergy, play well fire-retardant effect.
The particle diameter of the zeolite powder that the present invention adopts is preferably 100 ~ 200 microns, is more preferably 120 ~ 180 microns.
Cavings, as bulky grain string, increases the firmness of product.China is a paddy big country, and the place of production almost spreads all on both sides of the Changjiang River, and after paddy is processed to rice, its residue and the rice husk overwhelming majority go out of use.The present invention adopts cavings to be raw material, have raw material sources extensively, save, environmental protection and low cost and other advantages, and obtained plant fiber non-woven fabric product intensity is high, pollution-free.
Preferably, the present invention adopts following raw material: 6 ~ 9 part by weight of boric acid zinc, 65 ~ 70 weight portion wheat stalk fibers, 5 ~ 8 weight portion zeolite powders and 15 ~ 20 weight portion cavings.Preferred, adopt following raw material: 7 ~ 8 part by weight of boric acid zinc, 66 ~ 69 weight portion wheat stalk fibers, 6 ~ 7 weight portion zeolite powders and 16 ~ 19 weight portion cavings.
Described maceration extract is prepared as follows: 5 ~ 7 parts by weight of binder, 2 weight portion water repellents and 80 ~ 85 weight parts waters are mixed, obtain maceration extract.Preferred, described maceration extract is prepared as follows: 6 parts by weight of binder, 2 weight portion water repellents and 80 weight parts waters are mixed, obtain maceration extract.
For described adhesive and water repellent, there is no particular restriction in the present invention, can adopt adhesive well known to those skilled in the art and water repellent.Described adhesive is preferably PVA glue, and described water repellent is preferably fluorine family macromolecule condensate weak cation water repellent, is more preferably the water-repellent oil-repellent agent FK-517B that Beijing Chemical Co., Ltd. in Textile produces.
After obtaining prefabricated membrane, described prefabricated membrane is carried out successively toast and shape.Wherein, the temperature of baking is preferably 144 ~ 148 DEG C, is more preferably 145 ~ 146 DEG C, and the time of baking is preferably 2 minutes; The temperature of sizing is preferably 155 ~ 158 DEG C, and be more preferably 156 DEG C, the time of sizing is preferably 3 minutes.
As can be seen from the above technical solutions, fire-retardant plant fiber nonwoven fabric of the present invention, using Firebrake ZB as fire retardant, acts synergistically with zeolite powder, ensure that this fire-retardant plant fiber nonwoven fabric has good fire resistance.Secondly, this fire-retardant plant fiber nonwoven fabric can be degradable, free from environmental pollution, has the effect of weeding.Again, cavings, as bulky grain string, adds the firmness of plant fiber non-woven fabric.
In order to understand the present invention further, be described in detail to technical scheme provided by the invention below in conjunction with embodiment, protection scope of the present invention is not limited by the following examples.
Embodiment 1
6 part by weight of boric acid zinc, 65 weight portion wheat stalk fibers, 8 weight portion zeolite powders and 12 weight portion cavings are obtained WEB successively after carding machine and random web-laying equipment;
The water-repellent oil-repellent agent FK-517B produce 6 weight portion PVA glue, 2 weight portion Beijing Chemical Co., Ltd. in Textile and the mixing of 85 weight parts waters, obtain maceration extract;
Described WEB is immersed in described maceration extract and bonds film forming, obtain prefabricated membrane;
Described prefabricated membrane is toasted 2 minutes at 145 DEG C, then shapes 3 minutes at 156 DEG C, carry out calendering process through cold-rolling mill, after cut into and be involved in storehouse, obtain weeding plant fiber non-woven fabric.
To plant fiber non-woven fabric fabric width 100 ㎝ prepared by the present embodiment, often roll up length 100 meters, the heavy 40g/m of unit are
2, thickness 0.34mm, tensile strength 1600N/m, TEAR STRENGTH 80N, bursting strength 135N, vertical permeability coefficient 7.0 × 10
-4cm/s.
Vertical combustion is adopted to test the combustibility of nonwoven fabric prepared by the present embodiment.After tested, the sample char length of this nonwoven fabric is 95mm, and after flame time is 6s.According to the standard of GB50222-199, the fire resistance of the sample after flame-proof treatment has reached B2 level, can meet the fire-retardant levels necessitate of conventional nonwoven material.
Embodiment 2
8 part by weight of boric acid zinc, 68 weight portion wheat stalk fibers, 6 weight portion zeolite powders and 15 weight portion cavings are obtained WEB successively after carding machine and random web-laying equipment;
The water-repellent oil-repellent agent FK-517B produce 6 weight portion PVA glue, 2 weight portion Beijing Chemical Co., Ltd. in Textile and the mixing of 85 weight parts waters, obtain maceration extract;
Described WEB is immersed in described maceration extract and bonds film forming, obtain prefabricated membrane;
Described prefabricated membrane is toasted 2 minutes at 145 DEG C, then shapes 3 minutes at 156 DEG C, carry out calendering process through cold-rolling mill, after cut into and be involved in storehouse, obtain weeding plant fiber non-woven fabric.
To plant fiber non-woven fabric fabric width 100 ㎝ prepared by the present embodiment, often roll up length 100 meters, the heavy 41g/m of unit are
2, thickness 0.33mm, tensile strength 1608N/m, TEAR STRENGTH 81N, bursting strength 134N, vertical permeability coefficient 7.2 × 10
-4cm/s.
Vertical combustion is adopted to test the combustibility of nonwoven fabric prepared by the present embodiment.After tested, the sample char length of this nonwoven fabric is 93mm, and after flame time is 6s.According to the standard of GB50222-199, the fire resistance of the sample after flame-proof treatment has reached B2 level, can meet the fire-retardant levels necessitate of conventional nonwoven material.
Embodiment 3
5 part by weight of boric acid zinc, 62 weight portion wheat stalk fibers, 8 weight portion zeolite powders and 15 weight portion cavings are obtained WEB successively after carding machine and random web-laying equipment;
The water-repellent oil-repellent agent FK-517B produce 6 weight portion PVA glue, 2 weight portion Beijing Chemical Co., Ltd. in Textile and the mixing of 85 weight parts waters, obtain maceration extract;
Described WEB is immersed in described maceration extract and bonds film forming, obtain prefabricated membrane;
Described prefabricated membrane is toasted 2 minutes at 145 DEG C, then shapes 3 minutes at 158 DEG C, carry out calendering process through cold-rolling mill, after cut into and be involved in storehouse, obtain weeding plant fiber non-woven fabric.
To plant fiber non-woven fabric fabric width 100 ㎝ prepared by the present embodiment, often roll up length 100 meters, the heavy 42g/m of unit are
2, thickness 0.32mm, tensile strength 1608N/m, TEAR STRENGTH 82N, bursting strength 133N, vertical permeability coefficient 7.1 × 10
-4cm/s.
Vertical combustion is adopted to test the combustibility of nonwoven fabric prepared by the present embodiment.After tested, the sample char length of this nonwoven fabric is 92mm, and after flame time is 6s.According to the standard of GB50222-199, the fire resistance of the sample after flame-proof treatment has reached B2 level, can meet the fire-retardant levels necessitate of conventional nonwoven material.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a preparation method for fire-retardant plant fiber nonwoven fabric, is characterized in that, comprises the following steps:
5 ~ 10 part by weight of boric acid zinc, 60 ~ 70 weight portion wheat stalk fibers, 5 ~ 10 weight portion zeolite powders and 10 ~ 20 weight portion cavings are obtained WEB successively after carding machine and random web-laying equipment;
5 ~ 10 parts by weight of binder, 2 ~ 3 weight portion water repellents and 80 ~ 90 weight parts waters are mixed, obtains maceration extract;
Described WEB is immersed in described maceration extract and bonds film forming, obtain prefabricated membrane;
Described prefabricated membrane is toasted 1 ~ 3 minute at 140 ~ 150 DEG C, then shapes 2 ~ 4 minutes at 150 ~ 160 DEG C, obtain weeding plant fiber non-woven fabric.
2. preparation method according to claim 1, is characterized in that, adopts following raw material:
6 ~ 9 part by weight of boric acid zinc, 65 ~ 70 weight portion wheat stalk fibers, 5 ~ 8 weight portion zeolite powders and 15 ~ 20 weight portion cavings.
3. preparation method according to claim 2, is characterized in that, adopts following raw material:
7 ~ 8 part by weight of boric acid zinc, 66 ~ 69 weight portion wheat stalk fibers, 6 ~ 7 weight portion zeolite powders and 16 ~ 19 weight portion cavings.
4. preparation method according to claim 1, is characterized in that, the particle diameter of described zeolite powder is 100 ~ 200 microns.
5. preparation method according to claim 1, is characterized in that, described maceration extract is prepared as follows:
5 ~ 7 parts by weight of binder, 2 weight portion water repellents and 80 ~ 85 weight parts waters are mixed, obtains maceration extract.
6. preparation method according to claim 1, is characterized in that, described maceration extract is prepared as follows:
6 parts by weight of binder, 2 weight portion water repellents and 80 weight parts waters are mixed, obtains maceration extract.
7. preparation method according to claim 1, is characterized in that, the temperature of baking is 144 ~ 148 DEG C.
8. preparation method according to claim 1, is characterized in that, the time of baking is 2 minutes.
9. preparation method according to claim 1, is characterized in that, the temperature of sizing is 155 ~ 158 DEG C.
10. preparation method according to claim 1, is characterized in that, the time of sizing is 3 minutes.
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| CN201410448171.0A CN104250877A (en) | 2014-09-04 | 2014-09-04 | Method for preparing flame-retardant plant fiber nonwoven fabrics |
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| CN201410448171.0A CN104250877A (en) | 2014-09-04 | 2014-09-04 | Method for preparing flame-retardant plant fiber nonwoven fabrics |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104963095A (en) * | 2015-06-30 | 2015-10-07 | 怀宁县鑫源无纺布有限公司 | Biodegradable flame retardant plant fiber non-woven fabric making method |
| CN110694478A (en) * | 2019-10-09 | 2020-01-17 | 宁波泰意德过滤技术有限公司 | Ultrafiltration membrane and preparation method thereof |
| CN112064353A (en) * | 2020-09-21 | 2020-12-11 | 吴超林 | Degradable flame-retardant plant fiber non-woven fabric and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963095A (en) * | 2015-06-30 | 2015-10-07 | 怀宁县鑫源无纺布有限公司 | Biodegradable flame retardant plant fiber non-woven fabric making method |
| CN110694478A (en) * | 2019-10-09 | 2020-01-17 | 宁波泰意德过滤技术有限公司 | Ultrafiltration membrane and preparation method thereof |
| CN112064353A (en) * | 2020-09-21 | 2020-12-11 | 吴超林 | Degradable flame-retardant plant fiber non-woven fabric and preparation method thereof |
| CN112064353B (en) * | 2020-09-21 | 2021-09-24 | 临沂高维新材料有限公司 | Degradable flame-retardant plant fiber non-woven fabric and preparation method thereof |
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