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

Ethylene binary copolymer, polyethylene melt-blown material and preparation method

An ethylene binary copolymer and polyethylene technology, which is applied in rayon manufacturing, textile and papermaking, single-component polyolefin rayon, etc., can solve the problems of poor compatibility, low graft rate, low molecular weight, etc.

Active Publication Date: 2021-04-30
TAIZHOU UNIV
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility between polyethylene / inorganic electret is poor, and a compatibilizer is needed to modify the compatibility. Commonly used compatibilizers include polyethylene grafted maleic anhydride, titanate coupling agent, surface active agent, silane coupling agent, and the compatibilizer in the prior art has low grafting rate such as polyethylene graft maleic anhydride, and interface force is less; weak force defect

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
  • Ethylene binary copolymer, polyethylene melt-blown material and preparation method
  • Ethylene binary copolymer, polyethylene melt-blown material and preparation method
  • Ethylene binary copolymer, polyethylene melt-blown material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Preparation of ethylene binary copolymer:

[0043] Weigh polyethylene wax, 2-allyl hexafluoroisopropanol, initiator and antioxidant according to the mass ratio of 100:80:1:0.5, add them to the high-speed mixer in sequence, stir evenly at high speed and pour into the twin-screw extruder , set the temperature in the six zones of the extruder head to 90°C, 95°C, 95°C, 95°C, 95°C, and 90°C, melt extrusion, water cooling, dry pelletizing, and obtain ethylene wax-(2-ene Hexafluoroisopropanol) binary copolymer, that is, ethylene binary copolymer.

[0044] (2) Preparation of polyethylene meltblown material:

[0045] Weigh the prepared ethylene binary copolymer, polyethylene, anti-aging agent, and tourmaline at a mass ratio of 2:100:0.2:0.5. After mixing evenly, melt and extrude it in a twin-screw extruder. The temperature of the melting section is 170 -190°C to obtain polyethylene melt-blown material;

[0046] (3) Preparation of polyethylene melt-blown cloth:

[0047] T...

Embodiment 2

[0052] According to the preparation process of Example 1, the mass ratio of ethylene binary copolymer to polyethylene, anti-aging agent and tourmaline in step (2) is changed to 1: 100: 0.2: 0.5, and the ratio of other raw materials and the preparation process are unchanged. A polyethylene melt-blown nonwoven fabric was obtained.

Embodiment 3

[0054] According to the preparation process of Example 1, the mass ratio of polyethylene binary copolymer to polyethylene, anti-aging agent, and tourmaline in step (2) is changed to 0.5:100:0.2:0.5, and the ratio of other raw materials and the preparation process remain unchanged. , to obtain polyethylene melt-blown non-woven fabric.

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
Maximum decomposition temperatureaaaaaaaaaa
Maximum decomposition temperatureaaaaaaaaaa
Melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-molecular electret material, in particular to an ethylene binary copolymer, a polyethylene melt-blown material and a preparation method. The ethylene binary copolymer is a binary polymer of ethylene wax and 2-allylhexafluoroisopropanol, and has the shownstructural formula . The preparation method comprises the following steps: mixing the polyethylene wax and the 2-allylhexafluoroisopropanol under the effect of the initiator and the antioxidant, and reacting, melting and extruding to obtain the product. The copolymer can be used as a compatilizer to improve the compatibility between polyethylene / inorganic electrets, and a large amount of fluorine element contained in poly (2-allylhexafluoroisopropanol) can play an organic electret role in a polyethylene melt-blown material and improve the thermal stability of the polyethylene melt-blown material. After the ethylene binary copolymer is added into the polyethylene-based composite material, the effects of capacity increase, electret and aging resistance improvement can be achieved, and the ethylene binary copolymer has a wide potential application prospect in polyethylene melt-blown materials.

Description

technical field [0001] The invention relates to a polymer electret material, in particular to an ethylene binary copolymer, a polyethylene melt blown material and a preparation method. Background technique [0002] Polypropylene melt-blown cloth tends to turn yellow and become brittle after irradiation, while there are no tertiary carbon atoms in the polyethylene structure, so the aging resistance of polyethylene melt-blown materials is better than that of polypropylene. Toxic oxides are likely to remain in melt-blown polypropylene, which poses a potential threat to human health. In addition, compared with melt-blown polypropylene, melt-blown polyethylene has a higher melt index, lower melting point and better softness, and is suitable for baby diapers, wet wipes, work clothes, filter materials and other fields. In order to improve the electret and filtration performance of polyethylene melt blown cloth material, it is necessary to add organic electret material or inorganic...

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): C08F255/02C08F220/24D01F6/46D01F1/10D04H1/544D04H3/007D04H3/14
CPCC08F255/02D01F6/46D01F1/10D04H1/544D04H3/14D04H3/007C08F220/24
Inventor 杨旭宇金瑛何志才黄国波
Owner TAIZHOU UNIV
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