Scratch-resistant impact-resistant polypropylene material and preparation method thereof
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 polypropylene material and scratch-resistant technology, which is applied in the field of scratch-resistant and impact-resistant polypropylene materials and their preparation, can solve the problems of increasing material cost and affecting material properties, so as to improve scratch resistance, improve mechanical properties, The effect of improved scratch resistance
Active Publication Date: 2020-01-07
HEFEI GENIUS NEW MATERIALS
View PDF11 Cites 3 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
[0003] At present, the ways to improve the scratch resistance of polypropylene materials are mostly focused on improving the surface hardness, improving surface toughness and adding scratch resistance additives, but these methods usually add a large amount of other substances inappropriately, seriously affecting The performance of the material, and makes the cost of the material increase significantly
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
[0024] Add 75 parts of polypropylene, 15 parts of toughening agent, 10 parts of polyvinylidene fluoride, 0.1 part of plasticizer, 0.1 part of light stabilizer, and 0.4 part of antioxidant into the high-mixer and mix for 10 minutes; then mix the uniform material Add it into a twin-screw extruder, knead, extrude, cool and cut into pellets to obtain scratch-resistant and impact-resistant polypropylene material pellets; the extrusion temperature of each extrusion section in the twin-screw extruder is 150°C, 160°C, 175°C, 185°C, 190°C, 190°C, 190°C, 190°C, 190°C, 200°C.
Embodiment 2
[0026] Add 80 parts of polypropylene, 10 parts of toughening agent, 10 parts of polyvinylidene fluoride, 0.3 parts of plasticizer, 0.3 parts of light stabilizer, and 0.6 parts of antioxidant into the high-mixer and mix for 10 minutes; then mix the uniform material Add it into a twin-screw extruder, knead, extrude, cool and cut into pellets to obtain scratch-resistant and impact-resistant polypropylene material pellets; the extrusion temperature of each extrusion section in the twin-screw extruder is 155°C, 165°C, 170°C, 190°C, 195°C, 195°C, 195°C, 195°C, 195°C, 205°C.
Embodiment 3
[0028] Add 85 parts of polypropylene, 10 parts of toughening agent, 5 parts of polyvinylidene fluoride, 0.2 parts of plasticizer, 0.2 parts of light stabilizer, and 0.5 parts of antioxidant into the high-mixer and mix for 10 minutes; then mix the uniform material Add it into a twin-screw extruder, knead, extrude, cool and cut into pellets to obtain scratch-resistant and impact-resistant polypropylene material pellets; the extrusion temperature of each extrusion section in the twin-screw extruder is 160°C, 175°C, 185°C, 195°C, 200°C, 200°C, 200°C, 200°C, 200°C, 210°C.
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
elongation at break
aaaaa
aaaaa
elongation at break
aaaaa
aaaaa
Login to view more
Abstract
The invention discloses a scratch-resistant impact-resistant polypropylene material and a preparation method thereof. The scratch-resistant impact-resistant polypropylene material is prepared from thefollowing components: polypropylene, a toughening agent, polyvinylidene fluoride, a plasticizer, a light stabilizer and an antioxidant; the polypropylene is polypropylene random copolymer, the content of polyethylene in the polypropylene random copolymer is greater than or equal to 7%, and the tensile elongation at break is greater than or equal to 350%. According to the scratch-resistant impact-resistant polypropylene material prepared by the preparation method disclosed by the invention, the polypropylene random copolymer material with high ductility and low crystallinity is used, so that the material has excellent shearing-rebounding effect, and a certain amount of the compounded toughening agent is added, so that the toughness of the material is further improved, and the scratch depthof the material when the material is scratched is reduced; meanwhile, the polyvinylidene fluoride component is added into the material, so that the surface smoothness of the material is improved, thefrictional resistance is reduced, and the scratch resistance of the material is improved.
Description
technical field [0001] The invention relates to the technical field of modified materials, in particular, the invention relates to a scratch-resistant and impact-resistant polypropylene material and a preparation method thereof. Background technique [0002] Scratch resistance refers to the ability of a material to resist visible scratches caused by external forces. When this resistance is not strong enough, plastic deformation occurs on the surface of the material, and the surface is destroyed and scratches occur. Polypropylene material has been widely used in automobiles, electrical appliances, daily necessities and other fields due to its excellent physical properties, and it has a tendency to expand to new fields. However, the surface of polypropylene is easily scratched by external forces, which greatly affects the appearance of the product, and the scratches on the surface of the product will lead to stress concentration, which limits its application. Therefore, impr...
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