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Special white color master batch for infrared reflection film

A technology of infrared reflective film and white masterbatch, which is applied in the field of masterbatch manufacturing to achieve the effects of high dispersion, high infrared reflectivity and good whiteness

Inactive Publication Date: 2018-05-01
广州保亮得塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the sun shines on the ground, most of the infrared rays are absorbed by the soil or plastic film. Therefore, if the infrared reflection effect of the plastic film can be increased, the yield of crops may be further increased.

Method used

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  • Special white color master batch for infrared reflection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare the special white masterbatch for infrared reflection according to the following preparation method:

[0018] Step 1: Weigh 26.5 parts of low-density polyethylene, 70 parts of titanium dioxide with an average particle size of 1 μm, 0.5 parts of anti-aging agent, and 3 parts of dispersant, and put them into a mixer at a speed of 1000 rpm, stirring for 5 minutes, Mix the ingredients well;

[0019] Step 2: Heat the screw extruder to 280°C, keep the temperature constant for 20 minutes, add the ingredients mixed in Step 1, start extrusion, and granulate after water cooling;

[0020] Step 3: Put the formed color masterbatch into the vibrating sieve to remove the particles with uneven size, conduct a performance test on the color masterbatch that meets the specifications, and pack it in an aluminum-plastic composite bag after passing the inspection.

Embodiment 2

[0022] Step 1: Weigh 26.7 parts of low-density polyethylene, 70 parts of titanium dioxide with an average particle size of 0.8 μm, 0.3 parts of anti-aging agent, and 3 parts of dispersant, and put them into a mixer at a speed of 1100 rpm, stirring for 5 minutes, Mix the ingredients well;

[0023] Step 2: Heat the screw extruder to 250°C, keep the temperature constant for 25 minutes, add the ingredients mixed in Step 1, start extrusion, and granulate after water cooling;

[0024] Step 3: Put the formed color masterbatch into the vibrating sieve to remove the particles with uneven size, conduct a performance test on the color masterbatch that meets the specifications, and pack it in an aluminum-plastic composite bag after passing the inspection.

Embodiment 3

[0026] Step 1: Weigh 36.5 parts of low-density polyethylene, 60 parts of titanium dioxide with an average particle size of 1.3 μm, 0.5 parts of anti-aging agent, and 3 parts of dispersant, and put them into a mixer at a speed of 1000 rpm, and stir for 5 minutes. Mix the ingredients well;

[0027] Step 2: Heat the screw extruder to 260°C, keep the temperature constant for 20 minutes, add the ingredients mixed in Step 1, start extrusion, and granulate after water cooling;

[0028] Step 3: Put the formed color masterbatch into the vibrating sieve to remove the particles with uneven size, conduct a performance test on the color masterbatch that meets the specifications, and pack it in an aluminum-plastic composite bag after passing the inspection.

[0029] The relevant performance test indexes of above-mentioned 3 embodiment products are as follows:

[0030]

[0031] Through the above test items, it can be seen that this product has strong weather resistance and infrared refle...

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Abstract

The invention discloses a special white color master batch for an infrared reflection film. The special white color master batch is prepared from the following ingredients in percentage by mass: 26.9-46.5% of low-density polyethylene, 50-70% of titanium dioxide, 0.1-0.5% of an anti-ageing agent and 3% of a dispersing agent. The special white color master batch is simple in production process and can be continuously produced; and the product has good whiteness, high dispersity, strong weather resistance and strong infrared-ray reflection ability. A mulching film prepared from the color master batch has very good weather resistance and a very good infrared-ray reflection effect in practical application, so that the yield of crops is increased, and a mature period of the crops is shortened. The special white color master batch for the infrared reflection film has a very wide application prospect in the agricultural production field.

Description

technical field [0001] The invention relates to the technical field of masterbatch production, in particular to a special white masterbatch for infrared reflective film. Background technique [0002] Since the introduction of plastic film covering technology from Japan in 1978, the application of plastic film has rapidly spread in the domestic agricultural field. Mulch film not only has the functions of heat preservation, moisturizing and improving fertilizer efficiency, but also can effectively prevent the growth of weeds and the harm of pests, improve the light and heat conditions near the ground, and maintain high and stable yields of agricultural products, which has made a significant contribution to my country's agricultural and economic development. contribute. The mulch film is made of high molecular polymer, and the color masterbatch is an important polymer material colorant, so as to color the mulch film, which can effectively improve the light conversion rate and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K3/22C08J3/22
CPCC08J3/226C08J2423/06C08K2003/2241C08K2201/003
Inventor 冯敏辉
Owner 广州保亮得塑料科技有限公司