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CPP tangle film and production process thereof

A production process and conjunctival technology, which is applied in the field of CPP twisted conjunctiva and its production process, can solve problems such as irreversibility, and achieve the effects of improving crystallization properties, lasting antibacterial properties, and increasing nucleation capacity.

Active Publication Date: 2022-04-12
潮州市景程薄膜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PP is a material with good toughness and is easy to process. The film prepared by it has the advantages of high quality and low price, but because of its good toughness and good deformation recovery, it has certain application in twisted film. However, in order to replace PVC and other materials that have an impact on the environment, it is necessary to improve the kink property of PP, that is, the irreversibility of deformation. Therefore, providing a CPP kink film with superior performance and its production process is a technical problem that needs to be solved at present.

Method used

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  • CPP tangle film and production process thereof
  • CPP tangle film and production process thereof
  • CPP tangle film and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The present embodiment provides a kind of composite nucleating agent, is made by the following steps:

[0029] Step A1, ultrasonically disperse 7g of nano-mesoporous silica in 200mL of methanol, then add 1.4g of sodium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, and stir at room temperature After 6 hours, the reaction product was evaporated to dryness at 80°C to obtain filled silica;

[0030] Step A2. Add 5.8g of filled silica, 50mL of absolute ethanol and 50mL of deionized water into a three-necked flask, ultrasonically disperse at a frequency of 40kHz for 20min, add 2.3g of KH-560, and stir for 6h at a speed of 200r / min. Add 7.8g of quaternary phosphonium salt modifier, stir and react for 2 hours at room temperature, after the reaction, centrifuge at 1000r / min for 10min, wash the precipitate with deionized water for 3 times, and finally dry it in an oven at 80°C to constant weight. A composite nucleating agent is obtained.

[0031] Wherein, the quaternary p...

Embodiment 2

[0035] The present embodiment provides a kind of composite nucleating agent, is made by the following steps:

[0036]Step A1, ultrasonically disperse 7g of nano-mesoporous silica in 200mL of methanol, then add 1.4g of sodium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, and stir at room temperature for 6h Finally, the reaction product was evaporated to dryness at 80°C to obtain filled silica;

[0037] Step A2: Add 6.0g of filled silica, 70mL of absolute ethanol and 52mL of deionized water into a three-necked flask, ultrasonically disperse at a frequency of 45kHz for 30min, add 2.5g of KH-560, stir and react at a speed of 250r / min for 7h, then add 7.9g of quaternary phosphonium salt modifier, stirred and reacted for 3h at room temperature, after the reaction, centrifuged at 1200r / min for 10min, the precipitate was washed 4 times with deionized water, and finally dried in an oven at 80°C to constant weight to obtain Composite nucleating agent.

[0038] Wherein, the quat...

Embodiment 3

[0042] The present embodiment provides a kind of composite nucleating agent, is made by the following steps:

[0043] Step A1, ultrasonically disperse 7g of nano-mesoporous silica in 200mL of methanol, then add 1.4g of sodium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, and stir at room temperature After 6 hours, the reaction product was evaporated to dryness at 80°C to obtain filled silica;

[0044] Step A2: Add 6.2g of filled silica, 80mL of absolute ethanol and 55mL of deionized water into a three-necked flask, ultrasonically disperse at a frequency of 50kHz for 40min, add 2.6g of KH-560, stir and react at a speed of 300r / min for 8h, then add 8.1g of quaternary phosphonium salt modifier, stirred and reacted for 4h at room temperature, after the reaction, centrifuged at 1500r / min for 10min, the precipitate was washed 5 times with deionized water, and finally dried in an oven at 80°C to constant weight to obtain Composite nucleating agent.

[0045] Wherein, the quat...

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Abstract

The invention relates to a CPP tangle film and a production process thereof, and belongs to the technical field of tangle film preparation, the CPP tangle film comprises the following raw materials by weight: 5-8 parts of iPP powder, 55-80 parts of PP granules, 0.3-0.4 part of a composite nucleating agent, 0.1-0.3 part of an antioxidant, and 2.5-4 parts of hydrogenated petroleum resin; the production process of the CPP tangle film comprises the following steps: 1, mixing iPP powder, PP granules, a composite nucleating agent, an antioxidant and hydrogenated petroleum resin, transferring the mixture into a twin-screw extruder, and carrying out melt extrusion granulation to obtain mixed granules; 2, putting the mixed material particles into an extrusion casting machine, casting into a film with the thickness of 25-30 microns, and then carrying out double-sided corona treatment and rolling to obtain a CPP tangle film; by adding the composite nucleating agent, the kink performance and antibacterial performance of the CPP film can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of twisted film preparation, and in particular relates to a CPP twisted film and a production process thereof. Background technique [0002] Kink film is often used in candy and food packaging. The requirements for this film are firstly to have a good kink property, that is, the ability of the film to not rebound after deformation, and secondly, the film needs to have high stiffness and modulus, so as to ensure the stability of the package. Aesthetics, and finally, good optical properties of the film are also required. The traditional twisted film is mainly PVC (polyvinyl chloride), which is used for the packaging of candies, beef jerky, and dried fruits. In recent years, the odor problem of PVC has been regarded as a non-environmental protection packaging film, mainly because it produces a harmful gas during processing. The current development and production of PET environmental protection twisted film is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L57/02C08K9/12C08K7/26C08K5/523C08K9/04C08J5/18C07F9/54
Inventor 李卫兵
Owner 潮州市景程薄膜科技有限公司
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