Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Thermal-oxidizing-aging resisting polypropylene composite

A technology for polypropylene and composites, which is applied in the field of heat-oxidative aging-resistant polypropylene composites. It can solve the problems of precipitation and degradation of the aging resistance of polypropylene products, and achieve improved interface adhesion, good heat-oxidative aging resistance, The effect of increased crystallinity

Active Publication Date: 2014-06-18
KINGFA SCI & TECH CO LTD +2
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is a common problem in the above-mentioned patents, that is, the antioxidant or light stabilizer is directly dispersed in the material system. Although the short-term aging performance is very good, under the long-term action of heat, oxygen and light, the antioxidant or light stabilizer There will be a problem of precipitation, especially when the product is in contact with the hot water solution of detergent or washing powder for a long time, these antioxidants or light stabilizers are easily dissolved by the hot washing liquid, resulting in a significant increase in the aging resistance of the above-mentioned polypropylene products. decline

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 1-6

[0047]The specific composition is listed in Table 1, and its preparation method is as follows: (1) weigh each raw material by weight; (2) stir and mix the materials except the filler in a mixer for 5 minutes to obtain the mixture; (3) mix the The mixture and the filler in step 2 are respectively discharged from the main feeding port and the side feeding port of the twin-screw extruder, extruded and granulated, and finally the product is obtained.

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
pore sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a thermal-oxidizing-aging resisting polypropylene composite. The thermal-oxidizing-aging resisting polypropylene composite comprises the following components in percentage by weight: 30%-85% of polypropylene, 0-10% of flexibilizer, 2%-10% of compatilizer, 10%-40% of filling agent, 0.1%-0.5% of nucleating agent, 1%-10% of load type functional agent and 0.2%-1.0% of processing agent. Due to the nucleating agent, the polypropylene spherocrystal is refined, the crystallization is uniform and regular and the degree of crystallinity is increased, so that the lattice defect of a substrate is avoided effectively, and the oxygen is prevented from dispersing to the inner part from the surface of the composite freely; due to the compatilizer, the interface bonding force of the polypropylene and the filling agent is improved, so that two phase interfaces are combined tightly, the and the oxygen is prevented from dispersing to the inner part from the surface of the composite freely, and the thermal-oxidizing-aging resistance is improved; and the load type functional agent solves the problem of dispersibility and solvent resistance of an antioxidant and a light stabilizer. The thermal-oxidizing-aging resisting polypropylene composite has a simple preparation method, is high in thermal-oxidizing-aging resisting efficiency and is widely applied to the field of household appliances such as electric cookers, microwave ovens, washing machines, dish-washing machines and the like.

Description

technical field [0001] The invention relates to the technical field of polypropylene modification, in particular to a heat-resistant oxygen aging polypropylene compound. Background technique [0002] Polypropylene has the advantages of abundant sources and low price, and compared with other general-purpose plastics, it has the characteristics of good mechanical properties, low density, good rigidity, high strength and good electrical insulation performance. It is currently widely used in the field of household appliances, but due to Polypropylene contains unstable tertiary carbon groups, and Yiai is attacked by heat, oxygen and ultraviolet rays, and its performance deteriorates, such as yellowing, surface cracking and pulverization, and a significant decline in mechanical properties. Therefore, many products are Long-term heat-oxidative aging resistance requirements are put forward for polypropylene. The existing improvement methods are generally to improve the heat and oxy...

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 Patents(China)
IPC IPC(8): C08L23/12C08L53/00C08L23/06C08L23/08C08L23/00C08L51/06C08K13/06C08K3/34C08K3/26C08K3/30C08K7/14C08K7/20
Inventor 杨霄云王爱东李其龙于海鸥陶四平肖鹏王鹏叶南飚
Owner KINGFA SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products