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Preparation method of polyethylene mulching film master batch for magnesium salt whisker reinforced smoke

A technology of magnesium salt whiskers and polyethylene, applied in the direction of plant protection covers, etc., can solve the problems of affecting the quality of agricultural mulch film, crop cultivation effect, reducing the light transmittance of mulch film, and the limited amount of addition, so as to improve the tensile strength performance and use Performance, improved processing dispersibility, good mechanical strength effect

Inactive Publication Date: 2011-08-17
昆明春叶塑料制成品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the agricultural mulch films prepared by them improve the strength performance of the mulch films to a certain extent, the main disadvantages are that the light transmittance of the mulch films is reduced to a certain extent, and the addition amount is limited, which directly affects the quality of the agricultural mulch films and the cultivation of crops. Effect

Method used

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  • Preparation method of polyethylene mulching film master batch for magnesium salt whisker reinforced smoke
  • Preparation method of polyethylene mulching film master batch for magnesium salt whisker reinforced smoke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing a masterbatch of polyethylene mulch for cigarettes reinforced with magnesium salt whiskers, the raw materials for its preparation are composed of the following mass components: 60 parts of basic magnesium sulfate whiskers, 40 parts of linear low-density polyethylene resin; 1.5 parts of joint agent; 3.5 parts of carboxy-modified polyethylene wax, 0.5 part of polyethylene wax, 1.0 part of lubricant vinyl silicone oil, and 0.5 part of polyethylene glycol. Among them: basic magnesium sulfate whisker is produced by Jiangsu Shanda Chemical Co., Ltd., model M-HOS; linear low-density polyethylene resin is produced by Daqing Petrochemical Plastic Factory, powder, model DFDA7510; rare earth coupling agent is Guangdong Weilin Produced by Nano Functional Materials Co., Ltd., model WG-1.

[0025] The specific preparation steps of magnesium salt whisker reinforced polyethylene masterbatch for cigarettes are as follows:

[0026] (1) Surface treatment and pre-di...

Embodiment 2

[0040] For the formula of magnesium salt whisker reinforced polyethylene mulch masterbatch for cigarettes, refer to the formula of Example 2 in Table 2. The masterbatch preparation process conditions are the same as in Example 1. The actual application performance of masterbatch enhancement is shown in Table 3.

Embodiment 3

[0042] The formula of magnesium salt whisker reinforced polyethylene mulch masterbatch for cigarettes is in accordance with the formula of Example 3 in Table 2, and the masterbatch preparation process conditions are the same as Example 1. The actual application effect of masterbatch enhancement is shown in Table 3.

[0043] Table 2: Example 1-Example 3 Magnesium Salt Whisker Reinforced Masterbatch Formula

[0044] Raw materials (mass points)

Example 1

Example 2

Example 3

Linear Low Density Polyethylene (LLPE-DFDA7520)

40

Low Density Polyethylene (LDPE-2426)

20

30

High Density Polyethylene (HDPE-TR144)

30

20

[0045] Basic Magnesium Sulfate

60

Magnesium borate

45

magnesium hydroxide

45

magnesium oxide

25

Rare earth coupling agent (WG-1)

1.5

0.5

1.5

Macromolecular coupling agent (P4...

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Abstract

The invention relates to a preparation method of a polyethylene mulching film master batch for a magnesium salt whisker reinforced smoke, which is prepared from the following materials in parts by weight: 40-70 parts of magnesium salt whisker, 25-60 parts of carrier resin, 1-3 parts of coupling agent, 1-5 parts of dispersant and 1-2 parts of lubricant. The preparation method comprises the following steps of: firstly putting magnesium salt whisker powder into a high-speed mixer for stirring to remove steam, then adding the coupling agent and the dispersant to the high-speed mixer for mixing atmedium-high speed for 5-10 minutes, and then furthering re-dispersing; finally conveying the mixture to a double-screw rod extruder for extruding and plasticizing, mixing and granulating to obtain the polyethylene mulching film master batch for the magnesium salt whisker reinforced smoke; the mulching film master batch has favorable mechanical intensity, dispersity and economy, and is suitable for being used both in the production reinforcement of the polyethylene mulching film master batch for the smoke and the muching film reinforcement for agriculture.

Description

technical field [0001] The invention relates to a preparation method of an agricultural mulch reinforcement masterbatch, in particular to a preparation method of a magnesium salt whisker-reinforced polyethylene mulch masterbatch for cigarettes. Background technique [0002] my country is the country with the largest amount of agricultural plastic film, which is 1.6 times the sum of other countries and regions in the world, accounting for about 62% of the world's total, mainly shed film and mulch film. Among them, the application of plastic film mainly plays the role of water retention, moisture conservation and production increase for crops. Tobacco mulch film has become one of the indispensable cultivation technical measures in the tobacco industry. Cigarette film is mainly made of polyethylene blow molding, mainly linear low-density polyethylene and high-density polyethylene, with low-density polyethylene as the main raw material or blended with other resins, adding other...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K9/04B29B9/06B29C47/92A01G13/02B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 林辉忠岳虹
Owner 昆明春叶塑料制成品有限公司
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