Coating agent composition for agricultural film and modified thermoplastic polymer film for agriculture

A technology of thermoplastic polymers and compositions, applied in botanical equipment and methods, cellulose plastic material layered products, coatings, etc., can solve the problems of loss of dripping property, poor actual durability, etc., and maintain dripping property , good dripping, good dripping effect

Inactive Publication Date: 2019-10-01
TAKEMOTO YUSHI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these existing methods, after laying on the agricultural greenhouse, although the initial dripping property can be obtained, it is repeatedly contacted with the framework of the greenhouse during long-term use, and the dry state and the wet state are repeated. On contact, there is a problem of loss of dripping property
Poor practical durability among existing means

Method used

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  • Coating agent composition for agricultural film and modified thermoplastic polymer film for agriculture
  • Coating agent composition for agricultural film and modified thermoplastic polymer film for agriculture
  • Coating agent composition for agricultural film and modified thermoplastic polymer film for agriculture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 26.5 parts of modified inorganic colloid sol (K-1) with a solid content concentration of 15%, 467 parts of water, 5 parts of cellulose derivatives (B-1), and a water-soluble crosslinking agent (C) with a solid content concentration of 70%. -1.4 parts were stirred with 0.01 part of polyether-modified silicone (S-1), and the coating agent composition (X-1) for agricultural films whose solid content concentration was 2% was obtained.

Embodiment 2～27 and comparative example 1～5

[0048] In the same manner as in the case of Example 1, the coating agent compositions (X-2) to (X-27) and (rx-1) to (rx- 5). Table 2 summarizes the content of the coating agent composition for agricultural film prepared by the above examples.

[0049] [Table 2]

[0050]

[0051] Table 2,

[0052] (Modified) ratio of inorganic colloidal sol, cellulose derivative and water-soluble crosslinking agent: parts by mass based on solid content

[0053] Mass ratio: cellulose derivative / water-soluble crosslinking agent

[0054] Ratio of polyether-modified silicone: parts by mass based on 100 parts by mass in terms of solid content of (modified) inorganic colloidal sol

[0055] K-1~K-5: Modified inorganic colloidal sols described in Table 1

[0056] A-1 to A-5: Inorganic colloidal sols described in Table 1

[0057] B-1: Hydroxypropylmethylcellulose (the viscosity of 2% aqueous solution at 20°C is 50mPa·s)

[0058] B-2: Hydroxypropylmethylcellulose (the viscosity of 2% aqueous so...

Embodiment 28

[0079] The ethylene·1-butene copolymer (ethylene copolymerization ratio 95%, density 0.920g / cm 3 , MFR2.1g / 10 minutes) is supplied to an inflation molding machine equipped with a die head with a diameter of 75mm and a die lip gap of 3mm, and the inflation molding is carried out under the conditions of resin extrusion temperature 200°C and BUR=1.8, and a thickness of 150μm is produced. olefin polymer film. Next, the olefin polymer film is subjected to corona treatment discharge, so that the wetting tension of the corona discharge treatment surface is 42mN / m, after that, the agricultural film coating agent composition (X-1) prepared in the test group 2 is applied 0.3g / m2 based on solid content 2 Apply to the corona discharge treated surface by gravure coating method, and stay in a hot air drying oven whose temperature is adjusted to 70° C. for 1 minute to obtain a modified thermoplastic polymer film for agriculture.

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Abstract

Provided are: a coating agent composition for an agricultural film, which exhibits a favorable initial antisticking property after being set on an agricultural greenhouse and which is capable of retaining a favorable antisticking property even after repeatedly making contact with a frame material of the agricultural greenhouse during long-term use in a situation where such contact takes place in an environment where a dry state and a wet state recurrently occur; and a modified thermoplastic polymer film using such a composition. The coating agent composition for an agricultural film contains,in a specific proportion, an inorganic colloidal sol, a specific cellulose derivative, and a water-soluble crosslinking agent.

Description

technical field [0001] The present invention relates to a coating agent composition for agricultural films used as a coating material for agricultural greenhouses, and to an agricultural modified thermoplastic polymer film adhering the coating composition. Background technique [0002] Thermoplastic polymer films are widely used as covering materials for agricultural greenhouses. However, due to its hydrophobic nature, thermoplastic polymer films are prone to fogging and reduce the penetration of sunlight. As a result, there is a problem of poor growth of crops, and there are also problems that attached water droplets fall and cause diseases of crops. The problem. Therefore, agricultural films to which an anti-fogging agent has been added or dripping agent-coated agricultural films have been conventionally used (for example, see Patent Documents 1 to 3). However, in these existing methods, after laying on the agricultural greenhouse, although the initial dripping property ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/14A01G13/02B32B23/08B32B23/18B32B23/22C09D1/00C09D5/02C09D7/40C09D101/08
CPCA01G9/14A01G13/02B32B23/08B32B23/18B32B23/22C09D1/00C09D5/02C09D101/08C09D7/40Y02A40/25C08J7/04C08J7/18C08L1/02C08L1/08C08L83/12
Inventor 潮谷和史
Owner TAKEMOTO YUSHI KK
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