Supercharge Your Innovation With Domain-Expert AI Agents!

Method using low-rank coal to prepare high-performance plastic film

A plastic film and high-performance technology, applied in the field of materials, can solve problems such as low energy efficiency and unfavorable environment, and achieve the effects of improving mechanical properties, short processing time, and large economic benefits

Inactive Publication Date: 2019-01-04
UNIV OF SHANGHAI FOR SCI & TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this type of coal utilization has been technically and economically available for decades, it is very energy inefficient and has a very bad carbon footprint for the environment

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
  • Method using low-rank coal to prepare high-performance plastic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Step 1, after lignite is ground into fine powder, utilize sieving machine to carry out sub-sieve, obtain 180 mesh pulverized coal.

[0015] Step 2, gelatinize 5g of PVA powder in 100mL of hot water at 98°C, add 5g of starch powder and 0.8g of sodium hydroxide powder, and mix for 10min to obtain mixed solution I.

[0016] In step 3, 1 g of coal powder is added to the mixed liquid I to obtain the suspension I.

[0017] Step 4, the suspension I was stirred at a stirring speed of 1500rpm for 15min to obtain the suspension II.

[0018] Step 5, heating the suspension II in a water bath at 75°C for 10 min to obtain the suspension III.

[0019] In step 6, the suspension III is poured into a petri dish, dried at 65°C for 20 hours, and then peeled off to obtain the plastic film I.

[0020] In step 7, the plastic film 1 is tested for parameters such as tensile strength and elongation at break, so as to judge whether its performance is good or bad.

[0021] The test results are:...

Embodiment 2

[0023] Step 1, after lignite is ground into fine powder, utilize sieving machine to carry out sub-sieve, obtain 180 mesh pulverized coal.

[0024] Step 2, gelatinize 5g of PVA powder in 100mL of hot water at 98°C, add 5g of starch powder and 0.8g of sodium hydroxide powder, and mix for 10min to obtain mixed solution I.

[0025] Step 3, adding 2g of coal powder into the mixed liquid I to obtain the suspension I.

[0026] Step 4, the suspension I was stirred at a stirring speed of 1500rpm for 15min to obtain the suspension II.

[0027] Step 5, heating the suspension II in a water bath at 75°C for 10 min to obtain the suspension III.

[0028] In step 6, the suspension III is poured into a petri dish, dried at 65°C for 20 hours, and then peeled off to obtain the plastic film II.

[0029] Step 7, testing parameters such as tensile strength and elongation at break of the plastic film II to judge its performance.

[0030] The test results are: the tensile strength is 6.02MPa, and ...

Embodiment 3

[0032] Step 1, after lignite is ground into fine powder, utilize sieving machine to carry out sub-sieve, obtain 180 mesh pulverized coal.

[0033] Step 2, gelatinize 5g of PVA powder in 100mL of hot water at 98°C, add 5g of starch powder and 0.8g of sodium hydroxide powder, and mix for 10min to obtain mixed solution I.

[0034] Step 3, 3g of coal powder is added to the mixed liquid I to obtain the suspension I.

[0035] Step 4, the suspension I was stirred at a stirring speed of 1500rpm for 15min to obtain the suspension II.

[0036] Step 5, heating the suspension II in a water bath at 75°C for 10 min to obtain the suspension III.

[0037] Step 6: Pour the suspension III into a petri dish, dry it at 65°C for 20 hours, and peel it off to obtain the plastic film III.

[0038] Step 7, testing parameters such as tensile strength and elongation at break of the plastic film III to judge its performance.

[0039] The test results are: the tensile strength is 8.21MPa, and the elong...

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
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method using low-rank coal to prepare a high-performance plastic film. The method includes the steps of firstly, grinding lignite into fine powder, and screening with a screening machine to obtain pulverized coal of 140-325 meshes; secondly, gelatinizing PVA powder of first mass in hot water of first temperature and first volume, adding starch powder of second mass and sodium hydroxide powder of third mass, and mixing for first time to obtain mixed liquid I; thirdly, adding 1-6g of pulverized coal into the mixed liquid I to obtain a suspension I; fourthly, stirring the suspension I at first stirring speed for second time to obtain a suspension II; fifthly, heating the suspension II in water bath of second temperature for third time to obtain a suspension III; sixthly, pouring the suspension III into a culture dish, drying under first drying temperature for first drying time, and stripping to obtain the plastic film.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing high-performance plastic films from low-rank coal. Background technique [0002] Coal is currently used as a raw material for the production of various chemicals and materials. To produce chemicals such as methanol, hydrogen and carbon monoxide, coal is first converted to synthesis gas, and high value-added products are made from these precursors. While this type of coal utilization has been technically and economically available for decades, it is very energy inefficient and its carbon emissions are very detrimental to the environment. Therefore, it is important to use coal directly to manufacture materials with little or no pollution. The invention is a convenient method for directly using coal to prepare materials, and a new plastic film composite material is prepared through the hydrogen bond between coal and polymer. Contents of the invention ...

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
IPC IPC(8): C08J5/18C08L29/04C08L3/02C08L97/00
CPCC08J5/18C08J2303/02C08J2329/04C08J2397/00C08J2497/00
Inventor 张守玉吴渊默李昊江锋浩张一帆王才威黄小河曹忠耀宋晓冰陈陆剑陶欣
Owner UNIV OF SHANGHAI FOR SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com