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

Uniform light-transmitting polypropylene composition as well as preparation method and application thereof

A polypropylene composition and polypropylene technology, applied in the field of modified plastics, can solve problems such as uneven light transmittance and haze, achieve uniform light transmittance or haze, and improve the uniformity of light transmission

Active Publication Date: 2022-01-04
TIANJIN KINGFA NEW MATERIAL +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of uneven light transmittance and haze under different injection molding processes described in the above-mentioned prior art, the present invention provides a uniform light-transmitting polypropylene composition, using ethylene propylene vulcanide with a gel content ≥ 85wt.%. Rubber improves the uniformity of light transmission of polypropylene, making the light transmittance and haze of different parts of polypropylene injection molded parts uniform

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
  • Uniform light-transmitting polypropylene composition as well as preparation method and application thereof
  • Uniform light-transmitting polypropylene composition as well as preparation method and application thereof
  • Uniform light-transmitting polypropylene composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～18

[0067] Embodiments 1 to 18 provide a polypropylene composition, whose component contents are shown in Table 1, and the preparation method is as follows:

[0068] Mix the components according to Table 1, add them to a twin-screw extruder, melt blend, extrude and granulate to obtain a polypropylene composition, wherein the melt-blending temperature of the twin-screw extruder is 180-230°C .

[0069] The component content (weight part) of table 1 embodiment 1~18 polypropylene composition

[0070]

[0071]

[0072]

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
particle diameteraaaaaaaaaa
melt flow indexaaaaaaaaaa
transmittivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a uniform light-transmitting polypropylene composition as well as a preparation method and application thereof. The uniform light-transmitting polypropylene composition comprises the following components in parts by weight: 70 to 95 parts of polypropylene, 5 to 30 parts of vulcanized ethylene propylene diene monomer powder, 0.01 to 0.5 part of an antioxidant, 0.01 to 5 parts of a light stabilizer and 0.01 to 0.5 part of a lubricant, wherein the gel content of the vulcanized ethylene propylene diene monomer powder is greater than or equal to 85 wt.%. The light transmission uniformity of polypropylene is improved by using the vulcanized ethylene propylene rubber with the gel content of more than or equal to 85 wt.%. After the ethylene propylene diene monomer is subjected to crosslinking treatment to reach relatively high gel content, the 'island' structure of the rubber phase in the polypropylene matrix is stable, and does not deform and generate orientation change along with the flowing direction of the material, so that the light transmittance or haze of different parts of a polypropylene injection molded part is uniform.

Description

technical field [0001] The invention relates to the technical field of modified plastics, and more specifically, to a uniform light-transmitting polypropylene composition and a preparation method and application thereof. Background technique [0002] At present, the automobile industry is ushering in a new round of transformation and upgrading. Electricity, intelligence, and networking have become one of the development trends. New requirements are put forward for automotive materials, such as the application of light-transmitting parts for interior and exterior decoration of automobiles. The light-transmitting material requires the material to have a certain light transmittance and haze. Polypropylene (PP) has the advantages of low density, low cost, and easy processing, and polypropylene is a translucent polymer material with a light transmittance of about 50-80%. It has been widely used in light-transmitting parts for interior and exterior decoration of automobiles super...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/26
CPCC08L23/12C08L2023/44C08L23/26Y02A40/25
Inventor 张春怀陈平绪叶南飚陈延安吴亦建陶四平王中林陈桂吉徐昌竹
Owner TIANJIN KINGFA NEW MATERIAL
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