CN105200660A - Straw fiber and bast fiber mixed nonwoven fabric for water-resistant and heat-resistant seamless wallpaper and preparation method of straw fiber and bast fiber mixed nonwoven fabric - Google Patents
Straw fiber and bast fiber mixed nonwoven fabric for water-resistant and heat-resistant seamless wallpaper and preparation method of straw fiber and bast fiber mixed nonwoven fabric Download PDFInfo
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- CN105200660A CN105200660A CN201510504917.XA CN201510504917A CN105200660A CN 105200660 A CN105200660 A CN 105200660A CN 201510504917 A CN201510504917 A CN 201510504917A CN 105200660 A CN105200660 A CN 105200660A
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Abstract
The invention discloses a straw fiber and bast fiber mixed nonwoven fabric for water-resistant and heat-resistant seamless wallpaper. The straw fiber and bast fiber mixed nonwoven fabric is prepared from the following raw materials in parts by weight: 220-205 parts of straws, 100-104 parts of original hemps, a proper amount of NaOH, a proper amount of water, 0.8-0.85 part of polyvinyl alcohol, 0.5-0.6 part of bamboo charcoal powder, 0.2-0.3 part of trifluoroethyl methacrylate, 0.2-0.3 part of dodecafluoroheptyl methacrylate, 5-6 parts of ethyl acetate, 0.4-0.5 part of 4,4'-diphenylmethane diisocyanate, 0.4-0.5 part of hydroxyl silicon oil, 0.7-0.9 part of a waterborne fluorocarbon emulsion, 0.3-0.4 part of nanometer polytetrafluoroethylene and 0.05-0.1 part of dicumyl peroxide. The nonwoven fabric disclosed by the invention is prepared from 4,4'-diphenylmethane diisocyanate, the hydroxyl silicon oil and the waterborne fluorocarbon emulsion, so that the water resistance, heat resistance and toughness of the nonwoven fabric are improved; and due to the use of the bamboo charcoal powder, the nonwoven fabric has an antibacterial property.
Description
Technical field
The present invention relates to nonwoven fabric manufacturing technology field, particularly relate to a kind of water-fast heat-resistance seamless wallpaper rice-straw fibre and flax fibre hybrid nonwoven cloth and preparation method thereof.
Background technology
There is abundant stalk resource in China, occupies first of the world.Wherein rice straw accounts for 27.5%, and maize straw accounts for 36.7%, and wheat stalk accounts for 15.2%, and can be used as the stalk total amount that the energy is used is 3.761 hundred million t.At present, a large amount of discarded rice straw still faces and burns this unique process approach.Exploitation rice straw novelty teabag, solves rice straw process new problem, both can reduce rice straw as the environmental pollution brought after castoff burning and management cost, and also can turn waste into wealth, and make full use of the value of rice straw resource itself, economize on resources.
By chemical constitution study, in rice straw, make it can be used as providing the resource of native cellulose fibre containing the cellulose reaching 31.51%.There is a large amount of rice straw resources in China, if can be used by weaving, can create good economic worth and environmental value.And utilize the prerequisite of rice straw fiber to be to remove other impurity of rice straw.Found through experiments, extracting at rice straw in the technique of fiber to use certain density NaOH to carry out alkali lye kiering to rice straw, to remove its major impurity such as the hemicellulose contained and lignin, thus obtain comparatively ideal fiber, for following process process.In order to efficiency utilization reclaims rice straw, consider to utilize nonwovens process to be made as nonwoven fabric.But because the mechanical properties such as rice straw brute force itself are poor, can must produce a desired effect with other known traditional fibre are blended.
The function admirable of flax fibre, biocompatibility is good.Along with the continuous progress of technology of nonwoven, application flax fibre is that raw material is produced high performance non-weaving cloth and become heat subject.This test selects flax fibre and rice straw fiber to carry out blended, and its feature is as follows: (1) is more excellent based on flax fibre brute force, and fiber stiffness is comparatively large, can make up the shortcoming of rice straw fiber strength deficiency.(2) because flax fibre contains a large amount of polar hydrophilic group, giant fibril longitudinal splitting and present many cracks and hole, and be communicated with lumen by capillary channel, this kind of structure makes flax fibre have remarkable moisture permeability (official regain is about 15%), and this growth for agricultural plant and preservation have good effect.Meanwhile, good hygroscopicity makes flax fibre have stronger antistatic behaviour.(3) natural chemical substance contained by flax fibre has the function of anti-bacteria.Under normal conditions, in the hole in flax fibre, be full of air, be unfavorable for the breeding of anaerobic bacteria, there is fungi-proofing, mildew-resistant, deodorization, corrosion-resistant function, antibacterial, bacteriostasis is more excellent.(4) as native cellulose fibre, the more cheap easy acquisition of flax fibre, and be all bast fibers with rice straw, composition is similar, when extracting fiber can kiering simultaneously to save operation, reduce costs.
Mixed with flax fibre by rice-straw fibre, with polyvinyl alcohol as adhesive, the nonwoven fabric of making has good hygroscopicity, higher fracture strength.If using the bottom of this nonwoven fabric as seamless wallpaper; can not only cost-saving, protection of the environment, raising straw additional application be worth; and useful to health, but the performances such as the hygroscopicity of this nonwoven fabric, intensity, durability can't meet the demands, and need to improve.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of water-fast heat-resistance seamless wallpaper rice-straw fibre and flax fibre hybrid nonwoven cloth and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of water-fast heat-resistance seamless wallpaper rice-straw fibre and flax fibre hybrid nonwoven cloth, be made up of the raw material of following weight portion: straw 200-205, raw ramie 100-104, NaOH are appropriate, water is appropriate, polyvinyl alcohol 0.8-0.85, bamboo charcoal powder 0.5-0.6, trifluoroethyl methacrylate 0.2-0.3, dodecafluoroheptyl methacrylate 0.2-0.3, ethyl acetate 5-6,4,4 '-methyl diphenylene diisocyanate 0.4-0.5, hydroxy silicon oil 0.4-0.5, water-base fluorocarbon emulsion 0.7-0.9, nanometer polytetrafluoroethylcomposite 0.3-0.4, dicumyl peroxide 0.05-0.1.
Described water-fast heat-resistance seamless wallpaper rice-straw fibre and the preparation method of flax fibre hybrid nonwoven cloth, comprise the following steps:
(1) straw is cut into the section of 3-5cm, by straw: the weight ratio 1:23-25 of water adds water, by straw: the weight ratio 1:0.6-0.65 of NaOH adds NaOH, stir, be heated to 89-91 DEG C, stirring reaction 1.8-2h under heat-retaining condition, filter, cleaning to pH with water is 7-8, and drying, obtains rice-straw fibre;
(2) raw ramie is cut into the section of 3-5cm, by raw ramie: the weight ratio 1:20-21 of water adds water, by raw ramie grass: the weight ratio 1:0.1-0.12 of NaOH adds NaOH, stir, be heated to 89-91 DEG C, stirring reaction 1.5-1.6h under heat-retaining condition, filter, cleaning to pH with water is 7-8, and drying, obtains flax fibre;
(3) polyvinyl alcohol is added water be mixed with the solution of 8-8.5% concentration, add bamboo charcoal powder, water-base fluorocarbon emulsion, stir, obtain adhesive, get rice-straw fibre, each 50 weight portions of flax fibre, mix, be placed in sizing in sizing net, be placed in acupuncture on needing machine again, be pressed into cloth, with described adhesive uniform application, resin added controls at 7-7.5%, to send in drying box dry 1.5-2h at 80-82 DEG C again, obtain nonwoven fabric;
(4) trifluoroethyl methacrylate, dodecafluoroheptyl methacrylate, ethyl acetate are mixed, add 4,4 '-methyl diphenylene diisocyanate, hydroxy silicon oil, nanometer polytetrafluoroethylcomposite, be heated to 65-70 DEG C, add dicumyl peroxide, stirring reaction 30-40 minute, obtain mixture, on the nonwoven fabric that mixture uniform application is obtained in (3) step, dry, to obtain final product.
A kind of seamless wallpaper, do superficial layer by PVC mantle, flexible polyurethane foams does intermediate layer, and water-fast heat-resistance seamless wallpaper rice-straw fibre described in claim 1 and flax fibre hybrid nonwoven cloth do bottom, carry out laminating make with make-up machine.
Advantage of the present invention is: nonwoven fabric of the present invention uses trifluoroethyl methacrylate, dodecafluoroheptyl methacrylate, nanometer polytetrafluoroethylcomposite to carry out coating modification, reduce regain, prevent from going mouldy, improve toughness, extend service life, and improve intensity; By using methyl diphenylene diisocyanate, hydroxy silicon oil, water-base fluorocarbon emulsion, improve the resistance to water of nonwoven fabric, heat resistance, toughness, by using bamboo charcoal powder, there is antibacterial and performance that is that purify air; The seamless Soft Roll wallpaper environmental protection made of this nonwoven fabric, durable, ventilative.
Detailed description of the invention
A kind of water-fast heat-resistance seamless wallpaper rice-straw fibre and flax fibre hybrid nonwoven cloth, be made up of the raw material of following weight portion (kilogram): straw 200, raw ramie 100, NaOH is appropriate, water is appropriate, polyvinyl alcohol 0.8, bamboo charcoal powder 0.5, trifluoroethyl methacrylate 0.2, dodecafluoroheptyl methacrylate 0.2, ethyl acetate 5,4,4 ' methyl diphenylene diisocyanate 0.4, hydroxy silicon oil 0.4, water-base fluorocarbon emulsion 0.7, nanometer polytetrafluoroethylcomposite 0.3, dicumyl peroxide 0.05.
Described water-fast heat-resistance seamless wallpaper rice-straw fibre and the preparation method of flax fibre hybrid nonwoven cloth, comprise the following steps:
(1) straw is cut into the section of 3cm, by straw: the weight ratio 1:23 of water adds water, by straw: the weight ratio 1:0.6 of NaOH adds NaOH, stirs, be heated to 89 DEG C, stirring reaction 1.8h under heat-retaining condition, filter, cleaning to pH with water is 7, and drying, obtains rice-straw fibre;
(2) raw ramie is cut into the section of 3cm, by raw ramie: the weight ratio 1:20 of water adds water, by raw ramie grass: the weight ratio 1:0.1 of NaOH adds NaOH, stirs, be heated to 89 DEG C, stirring reaction 1.5h under heat-retaining condition, filter, cleaning to pH with water is 7, and drying, obtains flax fibre;
(3) polyvinyl alcohol is added water be mixed with the solution of 8% concentration, add bamboo charcoal powder, water-base fluorocarbon emulsion, stir, obtain adhesive, get rice-straw fibre, each 50 weight portions of flax fibre, mix, be placed in sizing in sizing net, be placed in acupuncture on needing machine again, be pressed into cloth, with described adhesive uniform application, resin added controls 7%, to send in drying box dry 1.5h at 80 DEG C again, obtain nonwoven fabric;
(4) trifluoroethyl methacrylate, dodecafluoroheptyl methacrylate, ethyl acetate are mixed, add 4,4 ' methyl diphenylene diisocyanate, hydroxy silicon oil, nanometer polytetrafluoroethylcomposite, be heated to 65 DEG C, add dicumyl peroxide, stirring reaction 30 minutes, obtain mixture, on the nonwoven fabric that mixture uniform application is obtained in (3) step, dry, to obtain final product.
A kind of seamless wallpaper, do superficial layer by PVC mantle, flexible polyurethane foams does intermediate layer, and water-fast heat-resistance seamless wallpaper rice-straw fibre described in claim 1 and flax fibre hybrid nonwoven cloth do bottom, carry out laminating make with make-up machine.
Test result is: vertical and horizontal ultimate strength is respectively 90N, 92N, and thickness is 0.145mm, and regain is 0.8%.
Claims (3)
1. a water-fast heat-resistance seamless wallpaper rice-straw fibre and flax fibre hybrid nonwoven cloth, it is characterized in that being made up of the raw material of following weight portion: straw 200-205, raw ramie 100-104, NaOH is appropriate, water is appropriate, polyvinyl alcohol 0.8-0.85, bamboo charcoal powder 0.5-0.6, trifluoroethyl methacrylate 0.2-0.3, dodecafluoroheptyl methacrylate 0.2-0.3, ethyl acetate 5-6, 4, 4 '-methyl diphenylene diisocyanate 0.4-0.5, hydroxy silicon oil 0.4-0.5, water-base fluorocarbon emulsion 0.7-0.9, nanometer polytetrafluoroethylcomposite 0.3-0.4, dicumyl peroxide 0.05-0.1.
2. the preparation method of water-fast heat-resistance seamless wallpaper rice-straw fibre according to claim 1 and flax fibre hybrid nonwoven cloth, is characterized in that comprising the following steps:
(1) straw is cut into the section of 3-5cm, by straw: the weight ratio 1:23-25 of water adds water, by straw: the weight ratio 1:0.6-0.65 of NaOH adds NaOH, stir, be heated to 89-91 DEG C, stirring reaction 1.8-2h under heat-retaining condition, filter, cleaning to pH with water is 7-8, and drying, obtains rice-straw fibre;
(2) raw ramie is cut into the section of 3-5cm, by raw ramie: the weight ratio 1:20-21 of water adds water, by raw ramie grass: the weight ratio 1:0.1-0.12 of NaOH adds NaOH, stir, be heated to 89-91 DEG C, stirring reaction 1.5-1.6h under heat-retaining condition, filter, cleaning to pH with water is 7-8, and drying, obtains flax fibre;
(3) polyvinyl alcohol is added water be mixed with the solution of 8-8.5% concentration, add bamboo charcoal powder, water-base fluorocarbon emulsion, stir, obtain adhesive, get rice-straw fibre, each 50 weight portions of flax fibre, mix, be placed in sizing in sizing net, be placed in acupuncture on needing machine again, be pressed into cloth, with described adhesive uniform application, resin added controls at 7-7.5%, to send in drying box dry 1.5-2h at 80-82 DEG C again, obtain nonwoven fabric;
(4) trifluoroethyl methacrylate, dodecafluoroheptyl methacrylate, ethyl acetate are mixed, add 4,4 '-methyl diphenylene diisocyanate, hydroxy silicon oil, nanometer polytetrafluoroethylcomposite, be heated to 65-70 DEG C, add dicumyl peroxide, stirring reaction 30-40 minute, obtain mixture, on the nonwoven fabric that mixture uniform application is obtained in (3) step, dry, to obtain final product.
3. a seamless wallpaper, is characterized in that: do superficial layer by PVC mantle, flexible polyurethane foams does intermediate layer, and water-fast heat-resistance seamless wallpaper rice-straw fibre described in claim 1 and flax fibre hybrid nonwoven cloth do bottom, carry out laminating make with make-up machine.
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| CN201510504917.XA CN105200660A (en) | 2015-08-17 | 2015-08-17 | Straw fiber and bast fiber mixed nonwoven fabric for water-resistant and heat-resistant seamless wallpaper and preparation method of straw fiber and bast fiber mixed nonwoven fabric |
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| CN201510504917.XA CN105200660A (en) | 2015-08-17 | 2015-08-17 | Straw fiber and bast fiber mixed nonwoven fabric for water-resistant and heat-resistant seamless wallpaper and preparation method of straw fiber and bast fiber mixed nonwoven fabric |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297943A (en) * | 2017-06-12 | 2017-10-27 | 董晶龙 | A kind of preparation technology of environmental protection wall paper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297943A (en) * | 2017-06-12 | 2017-10-27 | 董晶龙 | A kind of preparation technology of environmental protection wall paper |
| CN107297943B (en) * | 2017-06-12 | 2018-11-27 | 浙江雅琪诺装饰材料有限公司 | A kind of preparation process of environmental protection wall paper |
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