Scratch-resistant low-haze polypropylene composition and preparation method thereof
A polypropylene composition and low haze technology, applied in the field of polypropylene materials, can solve problems such as increasing the haze of materials
Active Publication Date: 2021-09-07
KINGFA SCI & TECH CO LTD
View PDF1 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The scratch resistance of the material increases with the increase of the content of the scratch resistance agent, but the scratch resistance agent is a small molecular compound, and the increase of the content of the scratch resistance agent increases the concentration of volatile substances, which will increase the haze of the material
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific examples.
[0021] The raw material source information described in embodiment and comparative example is as follows:
[0022] The polypropylene resin is a copolymerized polypropylene, purchased from BX3920 of SK Korea, whose melt index measured by the method specified in ISO1133-1:2011 under a load of 2.16kg and 230°C is 100g / 10min;
[0023] Ethylene-propylene block copolymer 1, purchased from Dow Chemical, USA, has a melt index of 8.0g / 10min and a melting point of 130°C measured under a load of 2.16kg at 230°C by the method specified in ISO1133-1:2011;
[0024] Ethylene-propylene block copolymer 2, purchased from Dow Chemical, USA, has a melt index of 8.0g / 10min and a melting point of 110°C as measured by the method specified in ISO1133-1:2011 under a load of 2.16kg at 230°C;
[0025...
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 index | aaaaa | aaaaa |
| Melt index | aaaaa | aaaaa |
| Melting point | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a scratch-resistant low-haze polypropylene composition, which is prepared from the following ingredients in parts by weight: 40 to 60 parts of polypropylene resin, 1 to 25 parts of ethylene-propylene segmented copolymers, 10 to 30 parts of inorganic fillers, 1.5 to 3 parts of scratch-resistant agents and 0 to 1 part of auxiliary agents. And the melting point of the ethylene-propylene block copolymer is 100-140 DEG C. According to the polypropylene composition disclosed by the invention, the ethylene-propylene block copolymer with a relatively high melting point is added, so that the haze of the material under the condition of high scratch-resistant agent content is reduced, meanwhile, the scratch resistance of the material can be remarkably improved by increasing the content of the scratch-resistant agent, and the polypropylene composition has both scratch resistance and low haze; and the scratch-resistant low-haze polypropylene composition can be used for preparing plastic products with high haze requirements on automotive interiors due to direct solar radiation. The invention also discloses a preparation method of the scratch-resistant low-haze polypropylene composition.
Description
technical field [0001] The invention relates to a polypropylene material, in particular to a scratch-resistant low-haze polypropylene composition and a preparation method thereof. Background technique [0002] Polypropylene has been widely used in automobiles recently due to its advantages of low cost, light weight, high strength, good chemical resistance, good processing technology, and easy recycling. But its disadvantage is that the surface hardness of polypropylene is low, and its parts such as instrument panels, sub-dashboards, door panels, pillars, glove boxes, etc. will inevitably be rubbed by hard objects during production, transportation and use. , such as passenger fingernail scratches, shoes bruises, thus changing the color of the interior parts, affecting the durability and aesthetics of the interior parts. In addition, automotive interior parts such as dashboards are exposed to direct sunlight, and the surface temperature of the parts is relatively high. The ma...
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
Login to View More IPC IPC(8): C08L23/14C08L53/00C08L83/04C08K3/34C08K5/20
CPCC08L23/14C08L2205/03C08L53/00C08L83/04C08K3/34C08K5/20
Inventor 李伟俞飞雷亮陈嘉杰胡佳旭马金成吴国峰陈平绪
Owner KINGFA SCI & TECH CO LTD