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Polyvinyl chloride membrane for ginseng

A polyvinyl chloride and polyvinyl chloride resin technology, applied in the direction of plant protection cover, etc., can solve the problems of being unsuitable for large-scale popularization and application, uneven transmission of incident light, short service life of ordinary shed film, etc. The effect of large-scale promotion and application, avoiding high temperature burns, and facilitating field management and operation

Inactive Publication Date: 2008-08-06
白山市喜丰塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these simple covering methods are greatly affected by external factors such as strong winds, rain, snow, and scorching sun, and require frequent maintenance and management.
This not only greatly increases the workload of farmers, but also affects the balanced growth of crops due to the uneven transmission of incident light.
And ordinary shed film has a short service life
To a considerable extent, the use of this common shed film is limited, and it is not suitable for large-scale promotion and application.

Method used

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  • Polyvinyl chloride membrane for ginseng

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Table 1

[0029] Raw material composition

[0030] The preparation of the product of the present invention uses the formula raw materials in above-mentioned table 1, at first SG-2 type PVC resin is screened through the vibrating sieve of screening process, and the vibrating screen is 60 orders; In grinding process, DOP, DOA, epoxy soybean oil, Triazine-5, 1076, barium stearate, cadmium stearate, zinc stearate, triphenyl phosphite, and wollastonite are stirred by a mixer, and then ground and mixed by a three-roll mill, and the grinding slurry is passed through a 100-mesh Copper mesh filter, mixed pulp; put PVC resin, mixed pulp, stearic acid, phthalocyanine blue BGS into the high-speed kneader of the kneading process in the order of PVC resin, mixed pulp, and other additives according to the formula ratio and knead at a high speed , the kneading time is 5 minutes, and the vapor pressure is 0.5MPa; the kneaded material is banburyed (vapor pressure is ...

example 1

[0031] In Example 1, the proportion of 3 parts of silica fume (2000 mesh) was selected, and the light transmittance of the produced polyvinyl chloride ginseng film was 55%, and the haze value was 48%.

Embodiment 2

[0032] Example 2: Table 2

[0033] Raw material composition

[0034] The preparation of the product of the present invention uses the formula raw materials in the above-mentioned table 2, first the SG-2 type PVC resin is screened through a screening process vibrating screen, and the vibrating screen is 60 orders; in the grinding process, DOP, DOA, epoxy soybean oil, Triazine-5, 1076, triphenyl phosphite, barium stearate, cadmium stearate, zinc stearate, and wollastonite are stirred by a mixer, and then ground and mixed by a three-roll mill, and the grinding slurry is passed through a 100-mesh Copper mesh filter, mixed pulp; put PVC resin, mixed pulp, stearic acid, medium chrome yellow into the high-speed kneader of the kneading process in the order of PVC resin, mixed pulp, and other additives according to the formula ratio, and knead at a high speed. The kneading time is 7 minutes, and the vapor pressure is 0.4MPa; the kneaded materials are banburyed (vapor pressure...

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Abstract

The invention relates to an agriculture polyvinyl chloride gen-seng special membrane, which is suitable for gen-seng growth habit, can reduce the transmission of direct light and can improve diffuse reflection illumination quantity. The invention uses polyvinyl chloride resin as substrate, added with elasticizer, stabilizer, filling agent, lubricant and paint to be plasticized, calendered and extended. The invention overcomes the defects of prior art, such as the invention has incident light adjustment and the application for reducing direct light (transmission is 50-80%), adds diffuse reflection illumination function (haze is 35-50%), and realizes better ageing resistance and long service life.

Description

technical field [0001] The invention belongs to an agricultural polyvinyl chloride shed film, in particular to an agricultural polyvinyl chloride ginseng special film suitable for the growth habit of ginseng, capable of reducing the transmission of direct light and increasing the amount of diffusely reflected light. Background technique [0002] Ginseng is a precious Chinese herbal medicine. It is famous both at home and abroad as the "Three Treasures of the Northeast". It is a first-class protected plant in China and is known as the "King of Herbs". Ginseng is a shade-tolerant plant that likes light but avoids direct sunlight. It is also a moisture-tolerant plant that likes water and fears waterlogging. Therefore, ginseng has very strict requirements on the growth environment. In nature, its distribution area is very narrow, and it only exists in some mountainous areas in Northeast my country and North China. Due to the over-exploitation of human beings, the forest space w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L27/06C08K5/524A01G13/02
Inventor 曹志强孔杰李炳君李军
Owner 白山市喜丰塑业有限公司
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