Improved light altering film for agriculture and method of processing the same

A light-converting agricultural film and processing method technology, applied in the field of improved light-converting agricultural film, can solve the problems of unsatisfactory synergistic effects, single light-transforming color, and low light transmittance of agricultural film, so as to promote the growth and development of crops and Effects of nutrient uptake, enhanced photosynthesis, improved yield and quality

Inactive Publication Date: 2008-04-02
钱维均
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this product has the following disadvantages to varying degrees: monochromatic color (mainly red light), low thermal stability, serious light decay, life expectancy of 4 to 6 months, low light transmittance of agricultural film, and high cost; There is interaction between the light converting agent and the functional additives added in the agricultural film, and the synergistic effect is not ideal

Method used

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  • Improved light altering film for agriculture and method of processing the same
  • Improved light altering film for agriculture and method of processing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Dripping, longevity functional masterbatch formula

[0064] Polyethylene polymer 75 parts hindered amine light stabilizer poly-{[6-(1,1,3,3-tetramethylbutyl)-iminobutyl-1,3,5-triazine-2,4 -2,4-diyl][2-(2,2,6,6-tetramethylpiperidinyl)-nitrilo]-hexamethylene-[4-(2,2,6,6-tetra Methylpiperidinyl)-nitrilo]} 1.5 parts

[0065] The dripping agent takes 15 parts of composite antioxidant and adopts 0.5 parts of tetrakis [3-(3', 5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester of slow-release agent hydrated aluminum silicate high phosphorus 8 parts of soil

[0066] Add the polyethylene polymer into the high-speed mixer, and then add functional additives in the following order, slow-release agent → dripping agent → hindered amine light stabilizer → composite antioxidant, stir at high speed for 10 minutes to 15 minutes, the best time 12.5 minutes, the stirring speed is 500 to 800 rpm, the best speed is 650 rpm, the material is cooled, and then added to the sp...

Embodiment 2

[0074] A. Dripping and longevity functional masterbatch formula

[0075] Polyethylene polymer 75 parts

[0076] 18 parts of dripping agent

[0077] 2 parts hindered amine light stabilizer

[0078] Composite antioxidant takes 0.75 parts of tris(2,4 di-tert-butylphenyl) phosphite

[0079] Sustained release agent hydrated aluminum silicate 6 parts

[0080] B. Rare earth nano multi-band light conversion masterbatch formula

[0081] Polyethylene polymer 98 parts

[0082] Liquid dispersant white oil 0.08 parts

[0083] Rare earth nano multi-band composite light conversion agent 2 parts

[0084] Lubricant N, N'-ethylene bis stearamide 0.2 parts

[0085] C. Manufacture of rare earth nano multi-band light-converting functional agricultural film

[0086] Concentrated dripping, longevity functional masterbatch 12.5%

[0087] 12.5% ​​rare earth nano multi-band light conversion masterbatch

[0088] MLDPE or a mixture of MLDPE and polyethylene polymer 79.1%

Embodiment 3

[0090] A. Dripping and longevity functional masterbatch formula

[0091] Polyethylene polymer 75 parts

[0092] 16.5 parts of dripping agent

[0093] 1.75 parts of hindered amine light stabilizer

[0094] Composite antioxidant tetrakis[3-(3′,5′-di-tert-butyl-4′-hydroxyphenyl) propionate] pentaerythritol ester 0.75 parts

[0095] Sustained release agent hydrated aluminum silicate 7 parts

[0096] B. Rare earth nano multi-band light conversion masterbatch formula

[0097] Polyethylene polymer 98.45 parts

[0098] Liquid dispersant white oil 0.065 parts

[0099] 1.5 parts of rare earth nano multi-band composite light conversion agent

[0100] Lubricant N, N'-ethylene bis stearamide 0.15 parts

[0101] C. Manufacture of rare earth nano multi-band light-converting functional agricultural film

[0102] Concentrated dripping, longevity functional masterbatch 10.25%

[0103] 10.25% rare earth nano multi-band light conversion masterbatch

[0104] EVA or a mixture of EVA and M...

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Abstract

The present invention provides an improved light conversion agricultural membrane and the processing method. The agricultural membrane produced by the method has good dropping performances, excellent heat insulation and temperature-increasing performances, high transmittance, a plurality of colors for light conversion, long period of light conversion, and long service life of the agricultural membrane. An improved light conversion agricultural membrane is characterized in that the membrane comprises components of following weight percent: 8 percent to 12.5 percent of mother material of functions of dropping and long service life, 8 percent to 12.5 percent of rare earth nanometer multi-band light-conversion mother material, and 75.5 percent to 83 percent of base material. In the processing method of the light-conversion agricultural membrane, the concentrated mother material of functions of dropping and long service life, the rare earth nanometer multi-band light-conversion mother material and the base material are added into a mixing machine and stirred uniformly according to the proportion; the time is 5 minutes to 10 minutes; then the mixture is sent into a molding membrane-extruder; the diameter ratio is 30 to 1; the mould head is a type of feeding material from the center. The extruded membrane pipe is bulged, cooled, guided into an upper traction clamping roller and a lower traction roller by a human-held contraction frame, calculated by meter, fractured and rolled by double working positions, inspected, weighed, packaged and stored.

Description

(1) Technical field [0001] The invention relates to an improved light-converting agricultural film, and also relates to a processing method of the light-converting agricultural film. (2) Background technology [0002] Plant growth is closely related to photosynthesis. The blue-violet light (400-500nm) in sunlight mainly promotes the formation of plant vitamins, cuticles, and pigments, and directly affects the absorption of phosphorus and trace metal elements by plants; the red-orange light (580-650nm) promotes plant photosynthesis, promotes Plant reproduction, growth. Make full use of solar energy, convert the ultraviolet, yellow and green spectrums in the solar spectrum that are useless or unfavorable to plant growth into blue-violet light and red-orange light as much as possible, so as to improve the quality and yield of agricultural products. Now in the industry, light-changing agents are added to agricultural film materials to make light-changing agricultural films, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L23/06C08K5/524B29C49/04C08K5/3435C08K5/10C08K3/34C08K5/20
Inventor 钱维均
Owner 钱维均
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