CN1327012A - Photodegradable high-yield mulching and its producing method - Google Patents
Photodegradable high-yield mulching and its producing method Download PDFInfo
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- CN1327012A CN1327012A CN 01127932 CN01127932A CN1327012A CN 1327012 A CN1327012 A CN 1327012A CN 01127932 CN01127932 CN 01127932 CN 01127932 A CN01127932 A CN 01127932A CN 1327012 A CN1327012 A CN 1327012A
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Abstract
The photoecological mulching film contains additive the same as those in available mulching film, resin with spectral range of 400-700 nm, and fluorescent agent in 0.01-0.5 wt% of the material. During its preparation, fluorescent agent and talcum powder in the ratio of 1 to 3-12 are prepared into dispersant pigment, the pigment is mixed with ersin homogeneously, other additives are added before preparing 40-100 micron film in conventional process. The mulching film of the present invention can convert harmful and useless light to the photosynthesis of crop into useful light and make the spectrum of light transmitting the mulching identical with that of the photosynthsis of crop required. So that the mulching film can raise emergencer ate, reduce disease and raise yield of crop.
Description
Technical field: the invention belongs to farm crop and grow seedlings and covering in the vegetative period improvement of the contained composition of plastics film and the manufacturing process of agricultural plastic film.
Background technology: at present, the agricultural plastic film of producing mainly is made up of additives such as resin, softening agent, antioxidant, photostabilizer, tinting material, thermo-stabilizer, fire retardants both at home and abroad.These additives are to be used to improve processing of plastic, physical strength and characteristic such as anti-aging.The contained composition of these plastics films does not have to select the spectrum and the useful corresponding to function of spectrum of farm crop of its transmission, so influenced the photosynthetic efficiency of agricultural thing, and then influenced the growth potentials of farm crop, and reduced the resistivity of farm crop to disease, make it quality deteriorated, output descends.
Summary of the invention: the present invention is a kind of photodegradable high-yield mulching of development, the contained composition of this plastic sheeting for farm use has farm crop are produced deleterious light and useless light is transformed into the light useful to farm crop photosynthesis, it is consistent to make its radiation spectrum and farm crop that photosynthetic spectrum can take place, can utilize sun power efficiently, and then promote the production gesture of farm crop, improve farm crop to the resistivity of disease, improve the quality and output.The manufacture method of this plastic sheeting for farm use is provided simultaneously.Plastics film of the present invention is except that the softening agent that comprises existing plastics film, antioxidant, photostabilizer, tinting material, thermo-stabilizer, fire retardant, it also comprises thermoplastic soft resin and the solubleness good fluorescent agent of spectrum at 400-700nm, this resin is selected one or more the combination in ABS, polyethylene, polyvinyl chloride, the polystyrene for use, and fluorescent agent is selected one or more the combination among carboxylic anthraquinone in the organic reducing dyestuff, thioindigo, bromine indigo, the intellectual circle for use.Fluorescent agent accounts for the 0.01-0.5% of total raw material weight, and preferred proportion is: 0.05-0.2%.Vat dyes is selected one or more the combination in 3b vat red 3b, Vat green, reduction orchid, the reduction purple for use.Add and also can add a kind of in the high-visibility pigments such as white dyes, fluorescent yellow, rose-red, first first orchid behind the above fluorescent agent again.After increasing these high-visibility pigments, the content of fluorescent agent in total raw material still is 0.01-0.5%.Manufacture method of the present invention is: at first choosing accounts for the fluorescent agent of total raw material weight 0.01-0.5%, before preparation of raw material, earlier fluorescent agent is made and given dispersed color, the making method of giving dispersed color is, get fluorescent agent: talcum powder (or white oil)=1: the ratio of 3-12, make with dry method or wet method and to give dispersed color, it is even at the thermoplastic resin thorough mixing of 400-700nm to give dispersed color and spectrum again, and then insert other additive and mix, with calendaring molding or dissolve and extrude or method such as blowing is made the film of 40-100 μ m.Photodegradable high-yield mulching of the present invention can be deleterious light of crop growth and useless light are transformed into the light useful to farm crop photosynthesis, it is consistent that the radiation spectrum that makes the light that sees through this plastics film and farm crop can form photosynthetic spectrum, so can utilize sun power efficiently.The seedling rate of comparing farm crop with common plastic film can improve 10-20%, and survival rate of seedlings can improve 5-15%, disease index decreased 15-25%, and late 10-20 days of withering period can improve output 10-30%.Its manufacture method is simple, easy to operate, be convenient to mass industrialized production.
Specific embodiment mode one: press the column weight amount and weigh each raw material: spectrum at the high pressure polyethylene particle 1000kg of 500-600nm, reduce purple 0.5kg, the dark green 0.6kg of phthalein, two nickel photostabilizer 2kg, white oil 1.6kg.At first produce to give and disperse reduction purple, its method is that reduction purple dye and white oil are mixed, and makes with dry method or wet method and gives dispersed dye.High pressure polyethylene particle is disperseed that reduction is purple, dark green, the two nickel photostabilizer of phthalein mixes in order with giving, be warmed to 200 ℃ of one-tenth and dissolve state, adopt blow molding, make the thick photodegradable high-yield mulching of 80 μ m.The plastic sheeting for farm use and the ordinary agricultural membrane that utilize present embodiment to make carry out canopy film people parameter cultivation contrast experiment, under identical condition, adopting photodegradable high-yield mulching to compare with common plastic film early emerged 5-7 days, seedling rate has improved 15.5%, survival rate of seedlings has improved 9.5%, production gesture strong (seeing Table one), the disease index decreased 18.28%, 10-15 days withering period evening, annual per mu yield can be increased production the genseng of 15.1-20.5%, total saponin content has improved 23.8%, and haulm general saponin content has improved 35.5%.
Table one: 6 years canopy film genseng production gesture relatively
| Use film | Stem is thick | The stem height | Leaf is long | Leaf is wide |
| Photodegradable high-yield mulching | ??0.59±0.11 | ???28.56±6.37 | ???14.85±2.51 | ??6.34±1.11 |
| The common plastics farming is thin | ??0.53±0.09 | ???27.1±5.65 | ???13.9±1.91 | ???5.94±0.88 |
Embodiment two: press the column weight amount and weigh each raw material: spectrum is at the polyvinyl chloride 1000Kg of 500-600nm, reduces purple 0.5kg, white oil 1.6kg, tonka bean camphor 0.2kg, phthalein dark green 0.6kg, two nickel photostabilizer 2kg.Manufacture method is identical with embodiment one.This kind photodegradable high-yield mulching is applicable to the production of leaf vegetables such as covering greenhouse gardening spinach, leek.It improves output 15-25% than covering the greenhouse gardening leaf vegetables with common plastic film.
Embodiment three: press the column weight amount and weigh each raw material: spectrum at the polystyrene 1000kg of 500-600nm, reduce purple 0.5kg, the dark green 0.6kg of phthalein, two nickel photostabilizer 2kg, white oil 1.6kg.Its manufacture method is identical with embodiment one.The plastic sheeting for farm use that present embodiment is produced is applicable to the production of fruit dishes such as covering greenhouse gardening tomato, cucumber, and it covers greenhouse gardening fruit dish than common plastics agricultural film and improves output 15-20%.
Embodiment four: press the column weight amount and weigh each raw material: spectrum at the polyvinyl chloride 1000kg of 500-600nm, reduce purple 0.5kg, the dark green 0.6kg of phthalein, two nickel photostabilizer 2kg, white oil 1.6kg.Its manufacture method is identical with embodiment one.The plastic sheeting for farm use that present embodiment is produced is applicable to the seedling of canopy film water rice, and it is than early the emerging 4-7 days of common plastics plastic sheeting for farm use canopy film water rice seedling, and land for growing field crops output can on average improve 5-8%.
Claims (8)
1, photodegradable high-yield mulching, it is except that the softening agent that comprises existing plastics film, antioxidant, photostabilizer, tinting material, thermo-stabilizer, fire retardant, it is characterized in that it also comprises thermoplastic soft resin and the solubleness good fluorescent agent of spectrum at 400-700nm, fluorescent agent accounts for the 0.01-0.5% of total raw material weight.
2, photodegradable high-yield mulching according to claim 1 is characterized in that resin selects one or more the combination in ABS, polyethylene, polyvinyl chloride, the polystyrene for use.
3, photodegradable high-yield mulching according to claim 1 is characterized in that fluorescent agent selects one or more the combination among carboxylic anthraquinone in the organic reducing dyestuff, thioindigo, bromine indigo, the intellectual circle for use.
4, according to claim 1,3 described photodegradable high-yield mulchings, it is characterized in that vat dyes select for use 3b vat red 3b, reduction press green, reduction is blue, one or more the combination in the reduction purple.
5,, it is characterized in that adding and also can add a kind of in the high-visibility pigments such as white dyes, fluorescent yellow, rose-red, first first orchid behind the above fluorescent agent again according to claim 1,3 described photodegradable high-yield mulchings.
6, photodegradable high-yield mulching according to claim 1 is characterized in that the preferred proportion that fluorescent agent accounts for total raw material weight is 0.05-0.2%.
7, the manufacture method of photodegradable high-yield mulching, it is characterized in that at first selecting the fluorescent agent that accounts for total raw material weight 0.01-0.5%, before preparation of raw material, earlier fluorescent agent is made and given dispersed color, the making method of giving dispersed color is, get fluorescent agent: the ratio of talcum powder=1: 3-12, make with dry method and to give dispersed color, it is even at the thermoplastic resin thorough mixing of 400-700nm to give dispersed color and spectrum again, and then insert other additive and mix, with calendaring molding or dissolve and extrude or method such as blowing is made the film of 40-100 μ m.
8, the manufacture method of photodegradable high-yield mulching according to claim 7 is characterized in that the making method of giving dispersed color is to get fluorescent agent: the ratio of white oil=1: 3-12, and make with wet method and to give dispersed color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127932 CN1327012A (en) | 2001-07-12 | 2001-07-12 | Photodegradable high-yield mulching and its producing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127932 CN1327012A (en) | 2001-07-12 | 2001-07-12 | Photodegradable high-yield mulching and its producing method |
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| CN1327012A true CN1327012A (en) | 2001-12-19 |
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| CN 01127932 Pending CN1327012A (en) | 2001-07-12 | 2001-07-12 | Photodegradable high-yield mulching and its producing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558765A (en) * | 2014-12-22 | 2015-04-29 | 山东农业大学 | Special light-dimming green master batch for ginger mulching film and preparation method of master batch |
| CN105830827A (en) * | 2016-03-31 | 2016-08-10 | 太仓市新华粮食生产专业合作社 | High strength degradable agricultural film |
-
2001
- 2001-07-12 CN CN 01127932 patent/CN1327012A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558765A (en) * | 2014-12-22 | 2015-04-29 | 山东农业大学 | Special light-dimming green master batch for ginger mulching film and preparation method of master batch |
| CN104558765B (en) * | 2014-12-22 | 2016-10-05 | 山东农业大学 | Green master batch of the special light modulation of a kind of Rhizoma Zingiberis Recens mulch film and preparation method thereof |
| CN105830827A (en) * | 2016-03-31 | 2016-08-10 | 太仓市新华粮食生产专业合作社 | High strength degradable agricultural film |
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