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Polyvinyl chloride long-acting fog-dispersal dripping agricultural film with slow-release function and preparation method thereof

A technology for eliminating fog and dripping and polyvinyl chloride, which is applied in the field of polyvinyl chloride long-term anti-fogging and dripping agricultural film and its preparation. problems, to achieve the effect of reducing the risk of precipitation, synchronizing the service life and prolonging the service life

Inactive Publication Date: 2015-02-18
TIANJIN TIANSU SCI & TECH GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The longer the use time, the higher the requirements for the duration of dripping and defogging effect; at the same time, the long time of high temperature action will lead to serious precipitation in the early stage, which will not only cause adverse effects on the later dripping persistence, but also cause poor transparency and transparency of the shed film. Conditions such as poor light quality and technical problems affecting crop growth

Method used

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  • Polyvinyl chloride long-acting fog-dispersal dripping agricultural film with slow-release function and preparation method thereof
  • Polyvinyl chloride long-acting fog-dispersal dripping agricultural film with slow-release function and preparation method thereof
  • Polyvinyl chloride long-acting fog-dispersal dripping agricultural film with slow-release function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A polyvinyl chloride long-lasting fog-eliminating and dripping agricultural film with a slow-release function, the composition ratio of which is as follows:

[0035]

[0036] Among them, the main plasticizer is dioctyl phthalate; the auxiliary plasticizer is epoxy resin YD-128,

[0037] Epoxy octyl soybean oleate ESBO and cold-resistant plasticizer dioctyl adipate. The liquid composite stabilizer is liquid barium,

[0038] Cadmium, zinc composite stabilizer, powder composite stabilizer is powder barium, zinc composite stabilizer. Light stabilizers including UV

[0039] The line absorber UV531, and the antioxidants are monophenylenedioctyl phosphite and bisphenol A. The anti-fog and dripping agent is a compound anti-fog

[0040] Dripping agent. The nano-sustained-release agent is fumed spherical nano-silicon dioxide with primary particle size below 30nm.

Embodiment 2

[0042] A polyvinyl chloride long-lasting fog-eliminating and dripping agricultural film with a slow-release function, the composition ratio of which is as follows:

[0043]

[0044]

[0045] Among them, the main plasticizer is dioctyl phthalate; the auxiliary plasticizer is epoxy resin YD-128, epoxy octyl soybean oleate ESBO, and cold-resistant plasticizer dioctyl adipate ester. The liquid composite stabilizer is a liquid barium, cadmium and zinc composite stabilizer, and the powder composite stabilizer is a powder barium and zinc composite stabilizer. The anti-photooxidative aging agent includes ultraviolet absorber UV531, and the antioxidant is triphenyl phosphite and bisphenol A. The anti-fog and dripping agent is a compound anti-fog and dripping agent. The nano sustained release agent is a layered nano hydrotalcite with primary particle diameter below 30nm.

Embodiment 3

[0047] A polyvinyl chloride long-lasting fog-eliminating and dripping agricultural film with a slow-release function, the composition ratio of which is as follows:

[0048]

[0049]Among them, the main plasticizer is dioctyl phthalate; the auxiliary plasticizer is epoxy resin YD-128, epoxy octyl soybean oleate ESBO, and cold-resistant plasticizer dioctyl adipate ester. The liquid composite stabilizer is a liquid barium, cadmium and zinc composite stabilizer, and the powder composite stabilizer is a powder barium and zinc composite stabilizer. The anti-photooxidative aging agent includes ultraviolet absorber UV9, and the antioxidant is triphenyl phosphite and bisphenol A. The anti-fog and dripping agent is a compound anti-fog and dripping agent. The nano sustained-release agent is compounded with fumed spherical nano-silicon dioxide and layered nano-hydrotalcite with primary particle diameter below 30nm.

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Abstract

The invention relates to a polyvinyl chloride long-acting fog-dispersal dripping agricultural film with slow-release function and a preparation method thereof, belonging to the technical field of agricultural films. The agricultural film is composed of the following components in parts by mass: 100 parts of polyvinyl chloride resin, 40-50 PHR of primary plasticizer, 5-10 PHR of secondary plasticizer, 1.2-3 PHR of liquid composite stabilizer, 1.2-3 PHR of powder composite stabilizer, 0.3-1 PHR of light stabilizer, 0.5-2 PHR of antioxidant, 3-5.5 PHR of fog-dispersal dripping agent, 0.007-0.3 PHR of colorant and 0.1-2 PHR of nano slow-release agent. The preparation method comprises the following steps: (1) grinding: grinding the secondary plasticizer, powder composite stabilizer, light stabilizer, antioxidant and colorant into slurry; (2) feeding of high-speed mixer: simultaneously feeding the slow-release agent and fog-dispersal dripping agent; when the high-speed mixer is at high speed, feeding the plasticizer, mixing, and feeding the ground slurry; and (3) film preparation: banburying, plastifying, calendering, setting and coiling. The agricultural film has the advantages of simple technique, favorable light transmittance, synchronous dripping fog-dispersal function period with service life of the film, and the like.

Description

technical field [0001] The invention belongs to the technical field of agricultural films, in particular to a polyvinyl chloride long-acting fog-eliminating and dripping agricultural film with a slow-release function and a preparation method thereof. Background technique [0002] At present, polyvinyl chloride agricultural film has the characteristics of high light transmittance, strong heat preservation ability, good weather resistance and bonding processability, etc., and it is rich in resources and cheap, so it is widely used as a covering film for agricultural greenhouse cultivation. Compared with traditional open-field planting, plastic shed greenhouse cultivation can play the role of heat preservation, moisture retention and fertilizer preservation, which is beneficial to increase crop yield, advance or adjust the harvest period, especially in the planting of seasonal vegetables and fruits, general crops can be advanced It matures in 1-2 months, and can extend the grow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L63/00C08K13/04C08K7/18C08K3/36C08K7/00C08K3/34C08K5/12C08K5/1515C08K5/11C08K5/132B29C47/92B29L7/00B29C48/92
CPCC08L27/06B29C48/92B29C2948/92704B29D7/01C08L2203/16C08L63/00C08K13/04C08K7/18C08K3/36C08K5/1515C08K5/12C08K5/11C08K5/098C08K5/132C08K7/00C08K3/34
Inventor 汤洪臣张虹李伟明王俊影李云王琦吴晓韦宋正红
Owner TIANJIN TIANSU SCI & TECH GROUP
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