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Wrapping film material and preparation method thereof

A stretch film and material technology, applied in chemical instruments and methods, other household appliances, household components, etc., can solve the problem of stretch film material tensile strength, poor puncture resistance, unstable film production, uneven product quality, etc. problems, to achieve the effects of compact inner layer structure, improved mechanical properties and tear resistance, and high puncture resistance

Pending Publication Date: 2021-12-31
NINGBO HONGYAN PACKING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These self-adhesive polymers are more serious when they are used, which makes the production of stretch film unstable and the quality of the product uneven; Low crystal points are easy to produce, and these crystal points will have a serious impact on the use of stretch film, resulting in poor tensile strength and puncture resistance of stretch film materials

Method used

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  • Wrapping film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] S1: Take 3g of titanium dioxide, 2g of dolomite powder and 10g of silica sol, put them into a reaction kettle, stir and react at a temperature of 60°C for 15min to obtain a mixture A; take 80g of high-density polyethylene, 15g of polyvinyl alcohol and 5g of 3-methoxy Phenol was put into the reaction kettle, stirred and reacted at a temperature of 120° C. for 1 hour, then the mixed solution A and 6 g of pentaerythritol were added, and stirred and reacted for 20 minutes to obtain the material for the outer layer;

[0027] S2: Add 11 g of toluenesulfonic acid aqueous solution to 2 g of plant fibers, reflux and stir for 3 h under a nitrogen atmosphere at a temperature of 90 ° C, then cool to room temperature, and filter by suction to obtain a precipitate; then add 7 g of 2-aminoterephthalic acid, in Reflux and stir at 100°C for 2 hours to obtain modified plant fibers;

[0028] S3: Mix 40 g of metallocene linear polyethylene, 10 g of acrylonitrile-butadiene-styrene and 5 g o...

Embodiment 2

[0032] S1: Take 5g of titanium dioxide, 6g of dolomite powder and 20g of silica sol, put them into a reaction kettle, stir and react at a temperature of 80°C for 30min to obtain a mixture A; take 100g of high-density polyethylene, 25g of polyvinyl alcohol and 10g of 3-methoxy Put phenol into the reaction kettle, stir and react at a temperature of 150° C. for 3 hours, then add the mixed solution A and 15 g of pentaerythritol, and continue to stir and react for 40 minutes to obtain the material for the outer layer;

[0033] S2: Add 11 g of toluenesulfonic acid aqueous solution to 2 g of plant fibers, reflux and stir for 6 h under a nitrogen atmosphere at a temperature of 130 ° C, then cool to room temperature, and filter by suction to obtain a precipitate; then add 7 g of 2-aminoterephthalic acid, in Reflux and stir at 140°C for 5 hours to obtain modified plant fibers;

[0034] S3: Mix 70 g of metallocene linear polyethylene, 20 g of acrylonitrile-butadiene-styrene and 10 g of t...

Embodiment 3

[0038] S1: Take 4g of titanium dioxide, 5g of dolomite powder and 15g of silica sol, put them into a reaction kettle, stir and react at a temperature of 75°C for 25min to obtain a mixture A; take 95g of high-density polyethylene, 20g of polyvinyl alcohol and 7g of 3-methoxy Put phenol into the reaction kettle, stir and react at a temperature of 140° C. for 2.5 hours, then add the mixed solution A and 10 g of pentaerythritol, and continue to stir and react for 30 minutes to obtain the material for the outer layer;

[0039] S2: Add 11 g of toluenesulfonic acid aqueous solution to 2 g of plant fibers, reflux and stir for 4.5 h under a nitrogen atmosphere at a temperature of 110 ° C, then cool to room temperature, and suction filter to obtain a precipitate; then add 7 g of 2-aminoterephthalic acid, Reflux and stir for 3 hours at a temperature of 120°C to obtain modified plant fibers;

[0040] S3: Mix 60 g of metallocene linear polyethylene, 15 g of acrylonitrile-butadiene-styrene ...

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Abstract

The invention provides a wrapping film material. The wrapping film material comprises an outer layer, an auxiliary agent layer and an inner layer, the outer layer comprises, by weight, 80-100 parts of high density polyethylene, 15-25 parts of polyvinyl alcohol, 5-10 parts of 3-methoxyphenol, 10-20 parts of silica sol, 3-5 parts of titanium dioxide, 2-6 parts of dolomite powder, and 6-15 parts of pentaerythritol; the inner layer comprises, by weight, 40-70 parts of metallocene linear polyethylene, 10-20 parts of acrylonitrile-butadiene-styrene and 5-10 parts of modified plant fiber; and the auxiliary agent layer comprises, by weight, 20-40 parts of medium density polyethylene, 5-10 parts of phenylpropanolamine hydrochloride and 3-8 parts of abietate. Finally, the novel wrapping film material with excellent tear resistance, puncture resistance, tensile strength, water resistance and oxygen erosion resistance is prepared.

Description

technical field [0001] The invention relates to the technical field of stretch film material preparation, in particular to a multifunctional stretch film material and a preparation method thereof. Background technique [0002] Stretch film, also known as stretch film and heat shrinkable film, is a packaging film suitable for stretch winding in various bundling, packaging and wrapping operations, used to wrap or bind small or large Products, play the role of protection, etc., and are widely used in domestic and foreign packaging markets. [0003] At present, the conventional stretch film used in the market is mostly processed by extrusion process, and its main raw materials are polyvinyl chloride (PVC), low-density polyethylene, linear low-density polyethylene, polybutadiene and other viscoelastic polymers. . These self-adhesive polymers tend to stick to each other more seriously during use, which makes the film production unstable and the product quality uneven in the prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L23/06C08L29/04C08L55/02C08L97/02C08L93/04C08K3/36C08K3/22C08K5/053C08K9/10B32B27/32B32B27/06B32B27/18B32B27/20
CPCC08J5/18B32B27/32B32B27/08B32B27/18B32B27/20C08J2323/06C08J2429/04C08J2455/02C08J2497/02C08J2493/04C08K3/36C08K2003/2241C08K9/10C08K5/053B32B2250/242B32B2307/558B32B2307/5825B32B2307/7265B32B2307/714B32B2553/00
Inventor 李玉斌
Owner NINGBO HONGYAN PACKING MATERIAL
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