Formula and preparation method of special compound additive for polypropylene film material

A technology of polypropylene film and composite additives, which is applied in the chemical industry, can solve problems such as dust pollution, inaccurate addition amount, and harm to health, and achieve the effects of reducing the amount of addition, reducing the yellowness index, and increasing the tensile strength

Inactive Publication Date: 2015-04-29
江苏汉光实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic manufacturers are gradually switching from the earliest imported additives to localized additives due to the high price of imported additives. Because foreign compound additives keep Chinese technology secret, manufacturers hope to have a domestic product instead of imported additives. For unused physical properties, each additive is added separately to achieve the performance index, which results in the destruction of the synergistic effect between the additives, inaccurate additions, unstable product quality, and at the same time, due to separate additions, dust pollution is caused, which endangers health. Dangerous factors that are prone to dust electrostatic hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A special composite additive formula for polypropylene film materials, which includes 37% of antioxidant 626, 39% of antioxidant 1010, 17% of acid scavenger DHT-4A and 7% of nucleating agent Hyperform HPN-20E , the antioxidant 626 is bis(2,4-di-tert-butylphenol) pentaerythritol diphosphite, and the antioxidant 1010 is tetrakis[methyl-β-(3,5-di-tert-butyl- 4-hydroxyphenyl) propionate] pentaerythritol ester, the acid scavenger DHT-4A is hydrotalcite [Mg 6 al 2 (OH) 16 CO 3 4H 2 O].

[0015] A kind of preparation method of composite auxiliary agent special for polypropylene film material, it comprises the following steps,

[0016] (1) Mix the components and stir for 50 seconds at a stirring speed of 800 rpm at a temperature of 20°C;

[0017] (2) Take the components that have been stirred evenly and put them into an extrusion granulator for granulation. The temperature of the heating section of the extrusion granulator is 55°C, and the temperature of the head section ...

Embodiment 2

[0020] A special composite additive formula for polypropylene film materials, which includes 39% of antioxidant 626, 37% of antioxidant 1010, 19% of acid scavenger DHT-4A and 5% of nucleating agent Hyperform HPN-20E , the antioxidant 626 is bis(2,4-di-tert-butylphenol) pentaerythritol diphosphite, and the antioxidant 1010 is tetrakis[methyl-β-(3,5-di-tert-butyl- 4-hydroxyphenyl) propionate] pentaerythritol ester, the acid scavenger DHT-4A is hydrotalcite [Mg 6 al 2 (OH) 16 CO 3 4H 2 O].

[0021] A kind of preparation method of composite auxiliary agent special for polypropylene film material, it comprises the following steps,

[0022] (1) Mix the components and stir for 50 seconds at a stirring speed of 800 rpm at a temperature of 23°C;

[0023] (2) Take the components that have been stirred evenly and put them into an extrusion granulator for granulation. The temperature of the heating section of the extrusion granulator is 55°C, and the temperature of the head section ...

Embodiment 3

[0026] A special composite additive formula for polypropylene film materials, which includes 38% of antioxidant 626, 38% of antioxidant 1010, 16% of acid scavenger DHT-4A and 8% of nucleating agent Hyperform HPN-20E , the antioxidant 626 is bis(2,4-di-tert-butylphenol) pentaerythritol diphosphite, and the antioxidant 1010 is tetrakis[methyl-β-(3,5-di-tert-butyl- 4-hydroxyphenyl) propionate] pentaerythritol ester, the acid scavenger DHT-4A is hydrotalcite [Mg 6 al 2 (OH) 16 CO 3 4H 2 O].

[0027] A kind of preparation method of composite auxiliary agent special for polypropylene film material, it comprises the following steps,

[0028] (1) Mix the components and stir for 50 seconds at a stirring speed of 800 rpm at a temperature of 25°C;

[0029] (2) Take the components that have been stirred evenly and put them into an extrusion granulator for granulation. The temperature of the heating section of the extrusion granulator is 55°C, and the temperature of the nose section ...

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PUM

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Abstract

The invention relates to a formula of a special compound additive for a polypropylene film material. The formula comprises an antioxidant 626, an antioxidant 1010, a deacidification agent DHT-4A and a nucleating agent HyperformHPN-20E. The preparation method comprises the following steps: mixing and stirring the components, throwing the uniformly mixed and stirred components into a squeezing granulator for granulation, and sieving the obtained granules by using 1-5 layers of sieves, wherein granules with apertures equal to or larger than 4mm are finished products, and the granules with apertures smaller than 4mm are recycled. The formula provided by the invention is low in production cost, can be used for increasing the oxidation induction time of the polypropylene film material to be equal to or more than 35 minutes, reducing the yellow color index, improving the fracture strain and increasing the tensile strength of the film, the transparency and stiffness of the special compound additive for the polypropylene film material are high, no dust pollution is generated, various addition procedures in a polypropylene device in the traditional working manner are replaced by one addition procedure, and the good performance of a single agent can be protected.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a formula of compound auxiliary agent HG-108EA special for polypropylene film material and a preparation method thereof. Background technique [0002] With the expansion of the application field of domestic polypropylene products and the improvement of the performance of special polypropylene film products, the anti-oxidation performance and other physical properties of its additives are becoming more and more stringent. At present, due to the high price of imported auxiliaries, domestic manufacturers are gradually switching from the earliest imported additives to localized auxiliaries. Because foreign compound auxiliaries keep Chinese technology secret, manufacturers hope to have a domestic product instead of imported auxiliaries, often based on For unused physical properties, each additive is added separately to achieve the performance index, which results in the destruction of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/02C08K5/526C08K5/134C08K3/26B29B9/06
CPCC08K13/02C08K3/26C08K5/1345C08K5/1575C08K5/526C08L2201/08C08L2203/16C08L2205/24C08L23/12
Inventor 顾法明顾姣姣
Owner 江苏汉光实业股份有限公司
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