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Polymeric membrane material for packaging and preparation method thereof

A polymer film and packaging technology, applied in the field of packaging film materials and their preparation, packaging polymer film materials and their preparation, can solve the problems of high shrinkage rate and low strength of polymer film materials, and achieve shrinkage rate low effect

Inactive Publication Date: 2015-07-22
SUZHOU DINGLI PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: the purpose of this invention is to provide a kind of polymer film material for packaging with good tensile strength and lower high-temperature shrinkage rate, to solve the problem that the strength of polymer film material for packaging is low and shrinkage at high temperature high rate problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Turn on the high-speed mixer, the speed of the high-speed mixer is 250rpm, take 60 parts by weight of polypropylene, 10 parts of polycaprolactone, 16 parts of polytrimethylene terephthalate, polybutylene succinate 9 parts of alcohol ester, 5 parts of dioctyl terephthalate, 1.5 parts of tributyl phosphate, 4 parts of polyethylene glycol diacrylate, 6 parts of poly-3-hydroxybutyrate, diethyl phthalate 1.2 parts of esters were put into the above-mentioned high-speed mixer in turn and mixed for 30 minutes;

[0047] (2) After mixing, the mixed film material is extruded with a twin-screw extruder at high temperature. The length-to-diameter ratio of the twin-screw extruder is 20:1, and the extrusion temperature of the twin-screw extruder is: the first zone The temperature is 170°C, the temperature in the second zone is 174°C, the temperature in the third zone is 196°C, the temperature in the fourth zone is 200°C, and the temperature in the fifth zone is 220°C;

[0048] (3...

Embodiment 2

[0051] (1) Turn on the high-speed mixer, the speed of the high-speed mixer is 80rpm, take 35 parts by weight of polypropylene, 4 parts of polycaprolactone, 5 parts of polytrimethylene terephthalate, polybutylene succinate 3 parts of alcohol ester, 2 parts of dioctyl terephthalate, 0.5 parts of tributyl phosphate, 8 parts of polyethylene glycol diacrylate, 2 parts of poly-3-hydroxybutyrate, diethyl phthalate 0.5 parts of esters were put into the above-mentioned high-speed mixer in turn and mixed for 30 minutes;

[0052] (2) After mixing, the mixed film material is extruded with a twin-screw extruder at high temperature. The length-to-diameter ratio of the twin-screw extruder is 10:1, and the extrusion temperature of the twin-screw extruder is: the first zone The temperature is 165°C, the temperature in the second zone is 180°C, the temperature in the third zone is 188°C, the temperature in the fourth zone is 206°C, and the temperature in the fifth zone is 215°C;

[0053] (3) A...

Embodiment 3

[0056](1) Turn on the high-speed mixer, the speed of the high-speed mixer is 250rpm, take 40 parts by weight of polypropylene, 8 parts of polycaprolactone, 7 parts of polytrimethylene terephthalate, polybutylene succinate 7 parts of alcohol ester, 3 parts of dioctyl terephthalate, 1.3 parts of tributyl phosphate, 5 parts of polyethylene glycol diacrylate, 5 parts of poly-3-hydroxybutyrate, diethyl phthalate 1.0 parts of esters were put into the above-mentioned high-speed mixer in turn and mixed for 30 minutes;

[0057] (2) After mixing, the mixed film material is extruded with a twin-screw extruder at high temperature. The length-to-diameter ratio of the twin-screw extruder is 20:1, and the extrusion temperature of the twin-screw extruder is: the first zone The temperature is 170°C, the temperature in the second zone is 174°C, the temperature in the third zone is 196°C, the temperature in the fourth zone is 200°C, and the temperature in the fifth zone is 220°C;

[0058] (3) A...

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Abstract

The invention belongs to the field of packaging materials, and relates to a polymeric membrane material for packaging and a preparation method thereof. The polymeric membrane material is prepared from the following constituents: 35-60 parts of polypropylene, 4-10 parts of polycaprolactone, 5-16 parts of polytrimethylene terephthalate, 3-9 parts of poly(butylene succinate), 2-5 parts of dioctyl terephthalate, 0.5-1.5 parts of tributyl phosphate, 4-8 parts of polyethylene glycol acrylate, 2-6 parts of poly-3-hydroxybutyrate, and 0.5-1.2 parts of diethyl phthalate. The preparation method comprises the following steps: (1) starting a high-speed mixer, and sequentially feeding the raw materials into a high-speed mixer to be mixed; (2) using a twin-screw extruder to squeeze the mixed membrane materials at high temperature; (3) using a high-temperature casting machine to cast the mixed materials squeezed by the twin-screw extruder to form a membrane; (4) cooling the packaging membrane material cast by the casting machine, so as to obtain the polymeric membrane material for packaging.

Description

technical field [0001] The invention belongs to the field of packaging, and relates to a packaging film material and a preparation method thereof, in particular to a packaging polymer film material and a preparation method thereof. Background technique [0002] On the basis of the development of the packaging industry, the packaging of articles has also been developed accordingly. From simple paper packaging, to single-layer plastic film packaging, to the widespread use of composite materials. Composite film materials can make the contents of the packaging have the characteristics of moisturizing, fragrance preservation, appearance, freshness, light protection, penetration prevention, and extended shelf life, so they have developed rapidly. Composite packaging film materials are two or more materials that are combined through one or more composite processes to form composite materials with certain functions. Generally, it can be divided into base layer, functional layer a...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L67/04C08L67/02C08K5/12C08K5/521B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/92704C08J5/18C08K2201/014C08L2203/16C08L2205/02C08L2205/025C08L67/04C08L67/02C08K5/12C08K5/521
Inventor 顾建芳
Owner SUZHOU DINGLI PACKAGING
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