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

Plasticized starch, bio-based plastic as well as raw material composition, preparation method and application of bio-based plastic

A technology of bio-based plastics and raw material compositions, which is applied in the fields of bio-based plastics and raw material compositions, and plasticized starch, can solve the problems of low utilization of papermaking waste, strong hydrophilic ability, slow degradation speed, etc. The effect of protection promotion, strong hydrophilic ability and compatibility improvement

Active Publication Date: 2022-03-01
SHANGHAI CHANGFA NEW MATERIAL CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the slow degradation rate of plastic products in nature in the prior art, which has a great impact on the environment; the utilization of papermaking waste generated in the paper industry is low; starch is compatible with polyolefins Poor resistance, high viscosity, strong hydrophilic ability, easy gelatinization and other characteristics, limiting its application and other defects to provide a plasticized starch, bio-based plastic and its raw material composition, preparation method and application

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
  • Plasticized starch, bio-based plastic as well as raw material composition, preparation method and application of bio-based plastic
  • Plasticized starch, bio-based plastic as well as raw material composition, preparation method and application of bio-based plastic
  • Plasticized starch, bio-based plastic as well as raw material composition, preparation method and application of bio-based plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] 1. Preparation of plasticized starch

[0080] See Table 1 for the types and amounts of each component in the raw material composition of the plasticized starch.

[0081] Add the raw material composition of the plasticized starch into a high-speed blender and mix it at a temperature of 150°C, at a mixing speed of 300 rpm, and at a mixing time of 100 minutes to obtain the primary mixture 1;

[0082] Put the above-mentioned primary mixture 1 in a twin-screw extruder to extrude, plasticize, and granulate to obtain plasticized starch; the temperatures from the first zone to the sixth zone of the twin-screw extruder are 150°C, 155°C, and 170°C, respectively. °C, 175 °C, 180 °C and 185 °C; the head temperature of the twin-screw extruder is 175 °C, and the screw speed is 200 rpm.

[0083] 2. Preparation of bio-based plastic film

[0084] The types and amounts of each component in the raw material composition of the bio-based plastic film are shown in Table 1. Wherein, the pl...

Embodiment 2

[0091] 1. Preparation of plasticized starch

[0092] See Table 2 for the types and amounts of each component in the raw material composition of the plasticized starch.

[0093] The raw material composition of the plasticized starch was added into a high-speed blender and mixed, the mixing temperature was 50° C., the mixing speed was 200 rpm, and the mixing time was 60 minutes to obtain the primary mixture 1;

[0094] Put the above-mentioned primary mixture 1 in a twin-screw extruder to extrude, plasticize, and granulate to obtain plasticized starch. °C, 175 °C, 180 °C and 185 °C; the head temperature of the twin-screw extruder was 190 °C, and the screw speed was 200 rpm.

[0095] 2. Preparation of bio-based plastic film

[0096] The types and amounts of each component in the raw material composition of the bio-based plastic film are shown in Table 2. Wherein, the plasticized starch is the plasticized starch prepared in the above steps. The papermaking waste is obtained by ...

Embodiment 3

[0103] 1. Preparation of plasticized starch

[0104] See Table 3 for the types and amounts of each component in the raw material composition of the plasticized starch.

[0105] The raw material composition of the plasticized starch was added to a high-speed blender and mixed at a temperature of 130°C, at a speed of 300 rpm, and at a mixing time of 30 minutes to obtain the primary mixture 1;

[0106] Put the above-mentioned primary mixture 1 in a twin-screw extruder to extrude, plasticize, and granulate to obtain plasticized starch. °C, 175 °C, 180 °C and 195 °C; the head temperature of the twin-screw extruder was 200 °C, and the screw speed was 200 rpm.

[0107] 2. Preparation of bio-based plastic film

[0108] The types and amounts of each component in the raw material composition of the bio-based plastic film are shown in Table 3. Wherein, the plasticized starch is the plasticized starch prepared in the above steps. Papermaking waste is obtained from pulp after cleaning,...

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 size (mesh)aaaaaaaaaa
particle size (mesh)aaaaaaaaaa
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention discloses plasticized starch, bio-based plastic, a raw material composition of the bio-based plastic, a preparation method of the bio-based plastic and application of the bio-based plastic. The invention discloses a preparation method of plasticized starch. Raw materials of the plasticized starch comprise the following components in parts by weight: 50-100 parts of starch, 2-25 parts of glycerol and 1-15 parts of sorbitol. The preparation method comprises the following steps: mixing, extruding and plasticizing the raw materials of the plasticized starch. The bio-based plastic film prepared from the plasticized starch prepared by the invention is green and environment-friendly, and has good stability, water resistance, air permeability, impact resistance, tensile property and elongation; the raw materials are wide in source, low in price and easy to obtain, and efficient utilization of resources is achieved.

Description

technical field [0001] The invention relates to a plasticized starch, a bio-based plastic and its raw material composition, preparation method and application. Background technique [0002] With the rapid growth of plastic production and the increasing use of plastic products, plastic waste is also increasing at an alarming rate, causing serious waste. At present, most plastic products on the market are mainly made of petroleum-based polyolefins, which are not easy to degrade and pollute the environment. Therefore, it is imperative to develop degradable plastic products or add degradable fillers to replace petroleum-based plastics. Starch has the advantages of wide sources, low price, safety and harmlessness, biodegradability, and is a renewable resource. It is a good raw material for replacing petroleum-based plastics. However, starch is a natural polymer material with a certain rigidity, and there are hydrogen bonds between molecules, and the intermolecular forces are st...

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): C08L3/02C08K5/053C08J5/18C08L23/06C08L51/06C08L97/02C08L91/00C08L99/00C08L23/08C08K5/14C08K5/09C08K5/098C08K5/20C08K5/101
CPCC08K5/053C08J5/18C08J2323/06C08J2451/06C08J2497/02C08J2423/06C08J2423/08C08J2491/00C08J2403/02C08J2499/00C08K5/14C08K5/09C08K5/098C08K5/20C08K5/101C08K2201/014C08L2203/16C08L3/02
Inventor 施晓旦甄晓宇金霞朝
Owner SHANGHAI CHANGFA NEW MATERIAL CO LTD
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