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A method for improving the strength of transparent plastic woven bags

A technology of transparent plastic and woven bag, applied in the field of plastic woven bag processing, can solve the problems of affecting the strength of the transparent woven bag, poor transparency of polypropylene, slow crystallization speed, etc., so as to avoid the increase of opacity, improve transparency and crystallization speed. speed up effect

Active Publication Date: 2021-10-08
安徽鸿森塑业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, China's plastic woven bag industry has developed rapidly. With the market's ever-changing demands for people's spiritual civilization and green environmental protection, the requirements for product packaging have continued to increase. Packaging is a continuation of the production process of commodities. Indispensable conditions in the field of consumption, packaging mainly includes the rental of protective goods, and the packaging industry, as a supporting service industry of the national economy, is constantly improving with the rapid development of the national economy; polypropylene molecular chains are well-regulated and have strong crystallization ability , but the crystallization speed is slow, and it is easy to form large spherulites, especially when the extrusion volume is small and the cooling water temperature is high, it is easier to form large spherulites, which is conducive to the tensile strength of the flat yarn. When these spherulites are larger than light The wavelength has a large difference from the refractive index of the amorphous region. When light runs away, it is easy to cause light scattering, which makes the transparency of polypropylene worse. Therefore, in the prior art, the temperature of the cooling water is reduced to improve the polypropylene Crystallization speed is a way to increase the transparency of woven bags to a greater extent, but at the same time it will affect the strength of transparent woven bags; It is enough to reach 80%, and the yellowing resistance of plastic woven bags should also be considered

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for improving the strength of a transparent plastic woven bag, comprising the following contents: preparing raw materials according to the following weights: 75 parts of polypropylene particles, 8 parts of low-density polyethylene particles, 15 parts of acacia modified polyethylene, silicone resin containing silanol 6 parts, 2.5 parts of plasticizer, 2.6 parts of ether kaolin, 1.2 parts of sodium methyl silicate, 0.8 parts of licorice oil, 1.5 parts of coupling agent, 0.4 parts of antioxidant;

[0018] The saponins modified polyethylene refers to modifying the linear low density polyethylene with saponins extracts, the preparation method of the saponins extracts is to wash the saponins, dry and pulverize them to a particle size of 80-100 mesh, and divide them into three parts on average Powder, wherein the first powder dose is 12kGy 60 Co-γ-rays were irradiated for 25 seconds, and the irradiated material was obtained after completion; then the second powder was...

Embodiment 2

[0027] A method for improving the strength of a transparent plastic woven bag, comprising the following contents: preparing raw materials according to the following weight: 70 parts of polypropylene particles, 10 parts of low-density polyethylene particles, 18 parts of saponins modified polyethylene, silicone resin containing silanol 4 parts, 2.2 parts of plasticizer, 3.4 parts of ether-based kaolin, 0.8 parts of sodium methyl silicate, 1.2 parts of licorice oil, 2 parts of coupling agent, 0.2 parts of antioxidant;

[0028] The saponins modified polyethylene refers to modifying the linear low density polyethylene with saponins extracts, the preparation method of the saponins extracts is to wash the saponins, dry and pulverize them to a particle size of 80-100 mesh, and divide them into three parts on average powder, wherein the first powder dose is 16kGy 60 Co-γ-ray irradiation for 30 seconds, after completion, the irradiated material was obtained for use; then the second powd...

Embodiment 3

[0037] A method for improving the strength of a transparent plastic woven bag, comprising the following contents: preparing raw materials according to the following weights: 80 parts of polypropylene particles, 6 parts of low-density polyethylene particles, 12 parts of acacia modified polyethylene, silicone resin containing silanol 8 parts, 2.8 parts of plasticizer, 1.6 parts of ether kaolin, 1.6 parts of sodium methyl silicate, 0.6 parts of licorice oil, 1 part of coupling agent, 0.6 parts of antioxidant;

[0038] The saponins modified polyethylene refers to modifying the linear low density polyethylene with saponins extracts, the preparation method of the saponins extracts is to wash the saponins, dry and pulverize them to a particle size of 80-100 mesh, and divide them into three parts on average powder, wherein the first powder dose is 8kGy 60 Co-γ-rays were irradiated for 20 seconds, and the irradiated material was obtained after completion; then the second powder was lea...

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Abstract

The invention belongs to the technical field of processing plastic woven bags, and in particular relates to a method for improving the strength of transparent plastic woven bags. The raw materials are prepared according to the following weight: 70-80 parts of polypropylene particles, 6-10 parts of low-density polyethylene particles, modified acacia 12-18 parts of polyethylene, 4-8 parts of silicone resin containing silanol, 2.2-2.8 parts of plasticizer, 1.6-3.4 parts of ether-based kaolin, 0.8-1.6 parts of sodium methyl silicate, 0.6-1.2 parts of licorice oil 1-2 parts of coupling agent, 0.2-0.6 parts of antioxidant. Compared with the prior art, the present invention has the following advantages: in the present invention, the mechanical properties of the woven bag can be ensured through the reasonable proportioning of raw materials; at the same time, the reasonable proportioning of the antioxidant can make the plastic woven bag effectively resist yellowing and prolong the service life. its service life.

Description

technical field [0001] The invention belongs to the technical field of plastic woven bags, and in particular relates to a method for improving the strength of transparent plastic woven bags. Background technique [0002] In recent years, China's plastic woven bag industry has developed rapidly. With the market's ever-changing demands for people's spiritual civilization and green environmental protection, the requirements for product packaging have continued to increase. Packaging is a continuation of the production process of commodities. Indispensable conditions in the field of consumption, packaging mainly includes the rental of protective goods, and the packaging industry, as a supporting service industry of the national economy, is constantly improving with the rapid development of the national economy; polypropylene molecular chains are well-regulated and have strong crystallization ability , but the crystallization speed is slow, and it is easy to form large spherulite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/08C08L83/04C08L83/07C08K9/04C08K3/34C08K5/13C08K5/11
CPCC08L23/12C08L2201/08C08L2201/10C08L2205/035C08L23/06C08L23/0815C08L83/04C08K9/04C08K3/346C08K5/13C08K5/11
Inventor 孙如辰
Owner 安徽鸿森塑业科技股份有限公司