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Hot melt pressure-sensitive adhesive masterbatch for non-adhesive polyethylene protective film and preparation method thereof

A polyethylene protective film, hot melt pressure-sensitive adhesive technology, applied in the direction of adhesives, ester copolymer adhesives, non-polymer adhesive additives, etc., can solve problems such as poor compatibility, achieve high production efficiency, environmental protection Protects the effect of good adaptability and low-cost product quality

Active Publication Date: 2012-07-25
无锡达美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor compatibility between polyacrylate pressure-sensitive adhesive and polyethylene, direct co-extrusion blown film of polyacrylate pressure-sensitive adhesive and polyethylene cannot prepare adhesive-free polyethylene protective film with qualified appearance and function. Membranes, therefore, technicians in the industry have been working hard to find a solution to this technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of hot-melt pressure-sensitive adhesive masterbatch: 35 kg of polyacrylate hot-melt pressure-sensitive adhesive, 4.2 kg of low-density polyethylene, 10.5 kg of linear low-density polyethylene and 0.25 kg of zinc stearate were mixed in a high-speed mixer 15-30 minutes, then placed in a twin-screw extruder, the temperature of each section of the screw is 165-180°C, the material is melted and mixed evenly, extruded, cooled in a water bath to 10-35°C, and then pelletized by a pelletizer , and finally vacuum-dried to obtain the hot-melt pressure-sensitive adhesive masterbatch of the present invention.

Embodiment 2

[0024] Preparation of hot-melt pressure-sensitive adhesive masterbatch: 156 kg of polyacrylate hot-melt pressure-sensitive adhesive, 12.4 kg of low-density polyethylene, 30 kg of linear low-density polyethylene and 1.6 kg of zinc stearate were mixed in a high-speed mixer 15-30 minutes, then placed in a twin-screw extruder, the temperature of each section of the screw is 165-180°C, the material is melted and mixed evenly, extruded, cooled in a water bath to 10-35°C, and then pelletized by a pelletizer , and finally vacuum-dried to obtain the hot-melt pressure-sensitive adhesive masterbatch of the present invention.

Embodiment 3

[0026] Preparation of improved polyacrylate hot-melt pressure-sensitive adhesive: Add 5.0 kg of K12 emulsifier, 5.0 kg of OP-10 emulsifier, 180 kg of deionized water, 5.0 kg of methacrylic acid, and 7.5 kg of methacrylic acid shrinkage into the pre-emulsification kettle Glycerides, 225 kilograms of methyl methacrylate, 100 kilograms of butyl acrylate and 150 kilograms of isooctyl acrylate were fully stirred to obtain a pre-emulsion; then 270 kilograms of deionized water and 35 kilograms of pre-emulsified solution and 1.0 kg of ammonium persulfate, and the temperature was raised to 75°C for polymerization; when the reaction showed obvious blue fluorescence, the remaining pre-emulsion and initiator solution were added dropwise to the reaction kettle (dissolve 1.5 kg of ammonium persulfate in 50 kg of deionized water), adjust the rate of addition of the two, control the reaction temperature at 80-85°C, and complete the dropwise addition in about 3.5 hours; after the addition, keep...

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PUM

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Abstract

The invention discloses a hot melt pressure-sensitive adhesive masterbatch for a non-adhesive polyethylene protective film and a preparation method thereof, and the hot melt pressure-sensitive adhesive masterbatch comprises the following components by weight percent: 60-80% of hot melt pressure-sensitive adhesive, 19%-40% of carrier resin and 0.3%-2% of functional auxiliaries. The non-adhesive polyethylene protective film produced by adopting the hot melt pressure-sensitive adhesive masterbatch has the advantages of high production efficiency, good environmental protection adaptability, low production cost, high product quality and the like, and can overcome the defects of the existing non-adhesive polyethylene protective film.

Description

technical field [0001] The invention relates to a hot-melt pressure-sensitive adhesive masterbatch and a preparation method thereof, more specifically, the invention relates to a hot-melt pressure-sensitive adhesive masterbatch for an adhesive-free polyethylene protective film and a preparation method thereof. Background technique [0002] Adhesive-free polyethylene protective film is more and more popular because of its comprehensive advantages such as good transparency, good aging resistance, convenient production and use, high yield, small change in peeling force (adhesive force) after long-term sticking, and no adhesive residue. People are concerned about the development direction of the protective film industry. Commonly used self-adhesive materials for adhesive-free polyethylene protective films include ethylene-vinyl acetate copolymer (EVA), styrene-based thermoplastic elastomers, ethylene-α-olefin copolymers, hydrogenated styrene-butadiene rubber, and ultra-low-densi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C09J133/10C09J123/08C09J123/06C09J11/06C08F220/18C08L23/06
Inventor 李国荣王洪张刚
Owner 无锡达美新材料有限公司
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