Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of PHBV composite film for packaging material

A packaging material and composite film technology, applied in the field of packaging materials, can solve problems such as narrowing the application range, unsatisfactory heat resistance and toughness, etc., and achieve improved heat distortion temperature and heat resistance, good heat resistance, and good heat resistance Effects on Sexuality and Mechanical Properties

Active Publication Date: 2015-09-23
中山市志丰印刷实业有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the film has certain defects: when applied to packaging materials, its performance in terms of heat resistance and toughness is not ideal, which narrows its application range

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of PHBV composite film for packaging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of PHBV composite film for packaging materials, comprising the following steps:

[0025] (1) Superfinely pulverize the serpentine with a ball mill to obtain a serpentine powder with a particle size of 3 μm, dissolve sodium stearate in deionized water and mix evenly to obtain a modified liquid, and the serpentine powder The weight ratio to sodium stearate is 20:1, add the serpentine powder to the modification solution, put it in a constant temperature water bath with a temperature of 80°C and stir for 30 minutes, take it out, filter it, and place it in a drying oven with a temperature of 80°C. Dried to constant weight in the box to obtain modified serpentine powder;

[0026] (2) Add 85 parts by weight of PHBV into a twin-roller masticator for 2 minutes at 140°C, and add 5 parts by weight of modified serpentine powder and 4 parts by weight of epoxidized soybean oil into the twin-roller masticator in turn Continue to plasticize for 8 minutes, thin pas...

Embodiment 2

[0029] A preparation method of PHBV composite film for packaging materials, comprising the following steps:

[0030] (1) Superfinely pulverize the serpentine with a ball mill to obtain a serpentine powder with a particle size of 3 μm, dissolve sodium stearate in deionized water and mix evenly to obtain a modified liquid, and the serpentine powder The weight ratio to sodium stearate is 20:1, add the serpentine powder to the modification solution, put it in a constant temperature water bath with a temperature of 80°C and stir for 30 minutes, take it out, filter it, and place it in a drying oven with a temperature of 80°C. Dried to constant weight in the box to obtain modified serpentine powder;

[0031] (2) Add 88 parts by weight of PHBV into the double-roller masticator and plasticize for 2 minutes at 140°C, add 2.5 parts by weight of modified serpentine powder and 4 parts by weight of epoxy soybean oil into the double-roller masticator Continue to plasticize for 8 minutes, th...

Embodiment 3

[0034] A preparation method of PHBV composite film for packaging materials, comprising the following steps:

[0035] (1) Superfinely pulverize the serpentine with a ball mill to obtain a serpentine powder with a particle size of 3 μm, dissolve sodium stearate in deionized water and mix evenly to obtain a modified liquid, and the serpentine powder The weight ratio to sodium stearate is 20:1, add the serpentine powder to the modification solution, put it in a constant temperature water bath with a temperature of 80°C and stir for 30 minutes, take it out, filter it, and place it in a drying oven with a temperature of 80°C. Dried to constant weight in the box to obtain modified serpentine powder;

[0036] (2) Add 84 parts by weight of PHBV into the double-roller masticator at 140°C for plasticization for 2 minutes, and add 4 parts by weight of modified serpentine powder and 4 parts by weight of epoxy soybean oil into the double-roller masticator in turn Continue to plasticize for...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of a PHBV composite film for a packaging material. The preparation method comprises the following steps: (1) ball milling, by utilizing a ball mill, serpentine, then performing ultrafine crushing on the serpentine to obtain serpentine powder, dissolving sodium stearate in deionized water, uniformly mixing to obtain a modified solution, charging the serpentine powder into the modified solution, placing the mixed solution in a constant-temperature water bath, taking out, filtering, and drying in a drying oven until the weight is constant, thus obtaining modified serpentine powder; (2) placing 80 to 90 parts by weight of PHBV into a two-roller plasticator, plasticizing, sequentially charging 2 to 6 parts by weight of modified serpentine powder and 4 parts by weight of compatilizer into the plasticator for continuous plasticizing, mill running for 8 times to obtain a mixture; (3) melting and blending the mixture, 4 parts by weight of compatilizer and 4 to 8 parts by weight of PTFE in an internal mixer to obtain a mixture I, transferring the mixture I to a dual-screw extruder, extruding and granulating the mixture I to obtain particles, and casting the particles by utilizing a casting film machine to obtain the PHBV composite film for the packaging material. The prepared composite film is good in heat resistance and flexibility and applicable to various fields.

Description

Technical field: [0001] The invention relates to a packaging material, in particular to a preparation method of a PHBV composite film for the packaging material. Background technique: [0002] With the increasing shortage of petroleum resources, white pollution and greenhouse effect gradually intensified, biopolymer materials using renewable biomass resources as raw materials have become a hot spot in the field of materials development. Biopolymer materials are a kind of environmentally friendly new materials, mainly using plants as raw materials, such as polyhydroxyalkanoate (PHA) and polylactic acid (PIA), which are obtained through microbial synthesis of monomers and then chemically synthesized. get. Polyhydroxybutyrate valerate (PHBV) is a kind of PHA. It is a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate. It has good biodegradability, biocompatibility and bioabsorption Therefore, it can be applied to such as medical materials (sutures, bone nails), film materia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L27/18C08K9/04C08K3/34C08K5/1515
Inventor 矫磊
Owner 中山市志丰印刷实业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com