Ethylene binary copolymer, polyethylene melt-blown material and preparation method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
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
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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, tit...
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
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
Property
Measurement
Unit
Maximum decomposition temperature
aaaaa
aaaaa
Maximum decomposition temperature
aaaaa
aaaaa
Melting point
aaaaa
aaaaa
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more