Unlock instant, AI-driven research and patent intelligence for your innovation.
Modified antioxidant for polypropylene phenol red, polypropylene composition and its preparation method and application
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of polypropylene composition and antioxidant, applied in the field of processing and forming of polypropylene film, to achieve the effects of improving migration resistance, increasing service life and improving compatibility
Active Publication Date: 2020-10-27
涿州市隽诚化工有限公司
View PDF3 Cites 0 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
In the process of improving the phenol red phenomenon of polypropylene film materials, simply adding some antioxidants or antioxidants cannot solve this problem well
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
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0038] Embodiment 1 provides a kind of modified antioxidant and preparation method thereof, comprising:
[0039] Prepare 92 g of toluene, 31.2 g of styrene, 3.5 g of hydroxyethyl acrylate, and 1.2 g of ammonium persulfate as an initiator, and react at a temperature of 80° C. for 6 hours to obtain a styrene-acrylate copolymer.
[0040] Add 16.1g of antioxidant (REVONOX 420) and 0.2g of sulfuric acid to the obtained styrene-acrylate copolymer, react at 60°C for 2 hours, pour into ethanol, precipitate and filter, and then dry to obtain the modified antioxidant Oxygen.
Embodiment 2
[0042] Embodiment 2 provides a kind of polypropylene composition, comprises:
[0043] Add modified antioxidant 1g in 1000g polypropylene resin, antioxidant 1010 2g, benzophenone light stabilizer 2g, wherein modified antioxidant is the modified antioxidant obtained in embodiment 1, mixes and passes The twin-screw extruder extruded and granulated, the temperature of the extruder was 180° C., and the screw speed was 200 rpm to obtain a polypropylene composition.
[0044] The prepared polypropylene composition is used to produce a casting film, and the film is accompanied by a slightly slight phenol red phenomenon after winding, which is acceptable in production and application.
Embodiment 3
[0046] Embodiment 3 provides a kind of polypropylene composition, comprises:
[0047] Add modified antioxidant 3g in 1000g polypropylene resin, antioxidant 168 1g, benzophenone light stabilizer 2g, wherein said modified antioxidant is the modified antioxidant obtained in embodiment 1, mix Extrude and granulate evenly through a twin-screw extruder, the temperature of the extruder is 210° C., and the screw speed is 300 rpm to obtain a polypropylene composition.
[0048] The prepared polypropylene composition is used to produce a casting film, and the phenomenon of phenol red does not occur after the film is rolled.
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
melt flow index
aaaaa
aaaaa
melt flow index
aaaaa
aaaaa
Login to View More
Abstract
The invention relates to the field of processing forming of polypropylene films and particularly relates to a modified antioxidant solving phenol red of polypropylene, a polypropylene composition, a preparation method for the modified antioxidant and applications of the modified antioxidant and the polypropylene composition. The modified antioxidant is obtained through subjecting a styrene-acrylate copolymer and REVONOX 420 to a hybrid reaction. The polypropylene composition comprises polypropylene resin, the modified antioxidant, an antioxidant and a photostabilizer. End faces of the polypropylene films prepared by using the modified antioxidant or the polypropylene composition are free of a phenol red phenomenon after being wound, and service lives of the polypropylene films can be prolonged.
Description
technical field [0001] The invention relates to the field of polypropylene film processing and molding, in particular to a modified antioxidant for solving polypropylene phenol red, a polypropylene composition and its preparation method and application, which are used to solve the problem of phenol red on the end surface of polypropylene film after winding . Background technique [0002] After the polypropylene film is formed and rolled, the end surface will appear red, which is collectively referred to as phenol red. In order to solve the problem of phenol red in polypropylene films in the existing industrial production process, it can be solved by adding ultramarine blue inorganic pigments or fluorescent whitening agent organic additives to polypropylene. The method of adding inorganic pigments is to eliminate the red light of polypropylene film through the principle of ultramarine blue reflection blue light, but this method often leads to the opacity of polypropylene fil...
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