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Capillary penetration micro irrigation material and preparation method thereof

A capillary infiltration and micro-irrigation technology, applied in the directions of botanical equipment and methods, applications, watering devices, etc., can solve the problems of high overall production cost, high raw material cost, low production efficiency, etc., and improve the labor environment and labor intensity. Large, the effect of improving production efficiency

Inactive Publication Date: 2012-10-24
深圳市金麦田网络技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The invention provides a micro-irrigation material with capillary permeation function and a preparation method thereof. The material does not contain a release agent and a surfactant and is filled with a relatively high proportion of inorganic fillers, which overcomes the relatively low water seepage effect of materials in the prior art. poor quality, large investment, high cost of raw materials, long process flow, low production efficiency, and high overall production cost. At the same time, the material is composed of hydrophilic inorganic filler particles evenly distributed in the non-hydrophilic thermoplastic matrix. The structure of the capillary water seepage network, which not only ensures the processing and use performance of the material, but also can automatically seep or stop the water seepage through the capillary network inside the material according to the water potential of the soil in contact with it.

Method used

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  • Capillary penetration micro irrigation material and preparation method thereof
  • Capillary penetration micro irrigation material and preparation method thereof
  • Capillary penetration micro irrigation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The salt sludge (slurry), a by-product of the chlor-alkali industry, is dried with a plate and frame filter press to remove excess water, then ground and sieved to obtain 10 micron (μ) salt sludge powder filler, using a melt flow rate (MFR) of 4 Linear low-density polyethylene (LLDPE) resin is used as the base material, and the mass ratio of filler to resin is 300: 100; auxiliary: hindered phenol antioxidant is tetra[β-(3.5-di-tert-butyl, 4- Hydroxyphenyl) propionic acid] pentaerythritol ester, the addition amount is 0.3 parts by mass, the phosphite stabilizer is tris (2.4-di-tert-butylphenyl) phosphite, the addition amount is 0.3 parts by mass; the average molecular weight is 4000 high-flow polyethylene (PE wax), the addition amount is 1 part by mass; the carbon black 40% carbon black masterbatch is 35 parts by mass. Add the above components in three stages according to the measurement. The first stage adds all the resins, additives and the corresponding proportion of f...

Embodiment 2

[0070] Use 6.5 microns (μm) calcium carbonate as the filler, low-density polyethylene (LDPE) resin with a melt flow rate (MFR) of 0.3 as the base material, and the mass ratio of the filler to the resin is 200:100; the auxiliary is :The hindered phenol antioxidant is tetrakis [β-(3.5-di-tert-butyl, 4-hydroxyphenyl) propionic acid] pentaerythritol ester, the addition amount is 0.3 parts by mass, and the phosphite stabilizer is tris(2.4 -Di-tert-butylphenyl) ester, the addition amount is 0.3 parts by mass; the high flow polyethylene (PE) with a melt flow rate (MFR) of 30, the addition amount is 1 part by mass. The above components are added into the twin-screw granulator in three stages according to the measurement. The first stage adds all the resins, additives and the corresponding proportion of fillers. The proportion of fillers added in each stage is 40% and 40% of the total filler. , 20%, using a twin-screw granulator with a screw diameter of 75 (φ75) and a length-to-diameter...

Embodiment 3

[0072] Use 1.6 micron (μm) calcium carbonate as the filler, high-density polyethylene (HDPE) resin with a melt flow rate (MFR) of 0.1 as the base material, and the mass ratio of filler to resin is 150:100; additives are: The hindered phenol antioxidant is tetra[β-(3.5-di-tert-butyl, 4-hydroxyphenyl) propionic acid] pentaerythritol ester, the addition amount is 0.3 parts by mass, and the phosphite stabilizer is tris(2.4- Di-tert-butylphenyl) ester, the addition amount is 0.3 parts by mass; the high flow polyethylene (PE) with a melt flow rate (MFR) of 70, the addition amount is 3 parts by mass. The above-mentioned components are added into the twin-screw granulator in four stages according to the measurement. The first stage adds all the resins, additives and the corresponding proportion of fillers. The proportion of fillers added in each stage is 30% and 30% of the total filler. , 30%, 10%, using a twin-screw granulator with a screw diameter of 75 (φ75) and a length-to-diameter...

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Abstract

The invention relates to a capillary penetration micro irrigation material, which comprises the following components: a component A: a thermoplastic; a component B: a hydrophilic inorganic filler; an additive component C: a composite antioxidant; and an additive component D: high fluidity polyethylene or polypropylene with a melt mass flow rate more than or equal to 30 g / 10 min, or a polyethylene wax or random copolymerized polypropylene with an average molecular weight more than 3000. The material of the present invention has a uniformly-distributed capillary water penetration network structure in a hydrophobic thermoplastic matrix, wherein the structure is formed by stacking hydrophilic inorganic filler particles, and outward water penetration can be performed or stopped through the capillary water penetration network according to water potential of soil contacting the material of the present invention.

Description

Technical field [0001] The invention relates to a micro-irrigation material and a preparation method thereof, in particular to a capillary permeable micro-irrigation material and a preparation method thereof. Background technique [0002] my country's water resources account for only 6% of the world's total, which is more scarce than arable land resources (accounting for 9% of the world's total). Insufficient water resources have become a serious bottleneck restricting the sustainable development of our national economy. Unreasonable irrigation methods have caused serious waste of water resources, low utilization efficiency, and aggravated the current situation of water shortages. One of the important ways to alleviate the contradiction between water supply and demand is to develop water-saving irrigation. Water-saving irrigation technology is a general term for irrigation technology that significantly saves water and uses water more efficiently than traditional irrigation techn...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L23/20C08L25/06C08L67/00C08L77/00C08L69/00C08L23/14C08K13/02C08K3/22C08K3/26C08K3/30C08K3/34C08K3/36C08K5/134C08K5/526B29B9/02A01G25/06
Inventor 王建民史贞
Owner 深圳市金麦田网络技术有限公司
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