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Light-resistant modified PP material and preparation method thereof

A light resistance and modification technology, applied in the field of PP materials, can solve the problems of poor light aging resistance and limited application, achieve the effects of inhibiting the photooxidation process, simple preparation method, and expanding the application range

Pending Publication Date: 2021-03-23
上海奉坤新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current technology, the light aging resistance of PP is not good, which limits its application in outdoor environments

Method used

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  • Light-resistant modified PP material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A light-resistant modified PP material, comprising the following raw materials by weight: 65g of polypropylene, 5g of ethylene-octene copolymer, 5g of inorganic filler, 0.1g of antioxidant, and 0.1g of light stabilizer.

[0029] Among them, the polypropylene in this example is homopolypropylene; the melt index of the polypropylene in this example is 10-38g / 10min at 230°C and 2.16kg, and the ethylene-octene copolymer is at 190°C and 2.16kg. The melt index under the condition of 2.16kg is 0.5-10g / 10min.

[0030] Wherein, the inorganic filler in this embodiment is talc powder; the mesh number of talc powder is 3250 mesh.

[0031] The antioxidant in this embodiment is composed of a main antioxidant and a secondary antioxidant, and the mass ratio of the primary antioxidant to the secondary antioxidant is 2:1; wherein, the primary antioxidant is Oxygen 3114, and the secondary antioxidant The oxygen agent is antioxidant 618.

[0032] The light stabilizer in this embodiment i...

Embodiment 2

[0042] A light-resistant modified PP material, including the following raw materials by weight: 85g of polypropylene, 20g of ethylene-octene copolymer, 20g of inorganic filler, 3g of antioxidant, 3g of light stabilizer, and 4g of color masterbatch.

[0043] Wherein, the polypropylene in this embodiment is a mixture of homopolypropylene and copolymerized polypropylene

[0044] The melt index of polypropylene in this embodiment is 10-38g / 10min at 230°C and 2.16kg, and the melt index of ethylene-octene copolymer at 190°C and 2.16kg is 0.5-10g / 10min.

[0045] Wherein, the inorganic filler in this embodiment is a mixture of talcum powder and mica. Among them, the mesh number of the talc powder is 3000-5000 mesh, and the particle size of the mica is 120 μm.

[0046] The antioxidant in this embodiment is composed of a main antioxidant and a secondary antioxidant, and the mass ratio of the primary antioxidant to the secondary antioxidant is 2:1;

[0047] Among them, the main antioxi...

Embodiment 3

[0058] A light-resistant modified PP material, including the following raw materials: 78g of polypropylene, 10g of ethylene-octene copolymer, 15g of inorganic filler, 2.1g of antioxidant, 1.4g of light stabilizer, and 3g of masterbatch.

[0059] Wherein, the polypropylene in this embodiment is a mixture of homopolypropylene and copolymerized polypropylene.

[0060] The melt index of polypropylene in this embodiment is 10-38g / 10min at 230°C and 2.16kg, and the melt index of ethylene-octene copolymer at 190°C and 2.16kg is 0.5-10g / 10min.

[0061] Wherein, the inorganic filler in this embodiment is talcum powder. The mesh number of talcum powder is 3000-5000 mesh.

[0062] The antioxidant in this embodiment is composed of a main antioxidant and a secondary antioxidant, and the mass ratio of the primary antioxidant to the secondary antioxidant is 2:1;

[0063] Among them, the primary antioxidant is a mixture of antioxidant 1010 and antioxidant DSTP; the secondary antioxidant is ...

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Abstract

The invention discloses a light-resistant modified PP material and a preparation method thereof. The light-resistant modified PP material is prepared from the following raw materials in parts by weight: 65-85 parts of polypropylene, 5-20 parts of ethylene-octene copolymer, 5-20 parts of inorganic filler, 0.1-3 parts of an antioxidant, 0.1-3 parts of a light stabilizer and 0-4 parts of color masterbatch. The light stabilizer in the light-resistant modified PP material disclosed by the invention can capture active free radicals generated in macromolecules, so that the photooxidation process isinhibited, and the light stabilizer and the antioxidant have a synergistic effect to form a light-stable antioxidant system, meanwhile, under the reasonable compatibility of the components, the modified polypropylene material keeps excellent insulating property and mechanical property, is easy to process and form, has excellent light aging resistance, and the application range of the polypropylenematerial is expanded. The preparation method of the light-resistant modified PP material is simple, easy to control, wide in raw material source, low in cost and convenient for realizing industrial production, and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of PP materials, in particular to a light-resistant modified PP material and a preparation method thereof. Background technique [0002] Polypropylene (PP) has the advantages of many sources of raw materials, low price, low density, safety and non-toxicity, good light transmission, corrosion resistance, good mechanical strength, high rigidity, good electrical insulation stability, and easy processing and molding. , has been widely used in household lunch boxes, children's toys, food packaging boxes, optical plastic films, drinking water drainage pipes, automotive plastic products and other fields. It is currently the largest and fastest growing category of polymer materials in the world. In the current technology, the light aging resistance of PP is not good, which limits its application in outdoor environments. Therefore, PP materials with anti-ultraviolet aging function have become a hot research topic at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K3/34C08K5/527C08K5/3492C08K5/372C08K5/134
CPCC08L23/12C08L23/14C08L2201/08C08L2205/02C08L2205/03C08L23/0815C08K3/34C08K5/527C08K5/34924C08K5/372C08K5/1345
Inventor 徐金涛
Owner 上海奉坤新材料有限公司
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