A kind of polypropylene heat-resistant and weather-resistant masterbatch, preparation method and application thereof

A polypropylene and weather-resistant masterbatch technology, which is applied in the field of polymer material modification, can solve the problems of accelerated degradation of polypropylene molecular segments, poor heat and weather resistance, etc., to improve heat and weather resistance, increase production efficiency, and save energy. The effect of production costs

Active Publication Date: 2017-10-10
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat and weather resistance of glass fiber reinforced polypropylene materials currently used in China is worse, because the residual maleic anhydride and peroxides in the compatibilizer used in its production accelerate the degradation of polypropylene molecular segments

Method used

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  • A kind of polypropylene heat-resistant and weather-resistant masterbatch, preparation method and application thereof
  • A kind of polypropylene heat-resistant and weather-resistant masterbatch, preparation method and application thereof
  • A kind of polypropylene heat-resistant and weather-resistant masterbatch, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Put polypropylene: 87 parts, antioxidant: 6 parts, light stabilizer: 1 part, light stability auxiliary agent: 5 parts, heat-resistant stabilizer: 1 part, processing aid 0.1 part, put them into a high-speed mixer and mix 5 minutes, then put the mixture into the twin-screw extruder and extrude. The temperature of each section of the barrel of the twin-screw extruder is set as follows: 170°C for the first zone, 175°C for the second zone, 185°C for the third zone, and 185°C for the fourth zone , 190°C in the fifth zone, 190°C in the sixth zone, and 195°C at the machine head. The extruded strips are cooled to room temperature through a circulating water tank, dried by a blower, and then entered into a pelletizer for granulation. Described polypropylene is PP S2040 of Shanghai Secco Petrochemical Co., Ltd., described antioxidant is 3 parts of antioxidant 1010 and 3 parts of antioxidant 168, and described light stabilizer is BASF's Light stabilizer 770, the light stabilizer a...

Embodiment 2

[0035] Put polypropylene: 76 parts, antioxidant: 8 parts, light stabilizer: 3 parts, light stability auxiliary agent: 10 parts, heat-resistant stabilizer: 3 parts, processing aid 0.3 parts, put them into a high-speed mixer and mix 5 minutes, then put the mixture into the twin-screw extruder and extrude. The temperature of each section of the barrel of the twin-screw extruder is set as follows: 180°C for the first zone, 185°C for the second zone, 185°C for the third zone, and 190°C for the fourth zone , 195°C in the fifth zone, 195°C in the sixth zone, and 200°C at the head. The extruded strips are cooled to room temperature through a circulating water tank, dried by a blower, and then entered into a pelletizer for granulation.

[0036] The polypropylene is PP K7926 of Shanghai Secco Petrochemical Co., Ltd., and the antioxidant is 2 parts of antioxidant 1076, 2 parts of antioxidant 618 and 4 parts of antioxidant DSTDP. Described light stabilizer is the light stabilizer 770 of ...

Embodiment 3

[0038] Put polypropylene: 65 parts, antioxidant: 10 parts, light stabilizer: 5 parts, light stability auxiliary agent: 15 parts, heat-resistant stabilizer: 5 parts, processing aid 0.5 parts, put them into a high-speed mixer and mix 3 minutes, then put the mixture into the twin-screw extruder and extrude. The temperature of each section of the barrel of the twin-screw extruder is set to: 170°C for the first zone, 195°C for the second zone, 210°C for the third zone, and 210°C for the fourth zone , Five zone 220°C, six zone 225°C, machine head 230°C. The extruded strips are cooled to room temperature through a circulating water tank, dried by a blower, and then entered into a pelletizer for granulation. .

[0039] The polypropylene is Yanshan Petrochemical PP K7726H, the antioxidant is 3 parts of antioxidant 1076, 3 parts of antioxidant 618 and 4 parts of antioxidant DLTDP, and the light stabilizer is 3 parts of BASF's light stabilizer 770 and 2 parts of BASF's light stabilizer...

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Abstract

The invention relates to a polypropylene heat-resistant and weather-resistant masterbatch, a preparation method and an application thereof, belonging to the field of polymer materials. The material contains the following raw materials: polypropylene, antioxidant, light stabilizer, light stability auxiliary agent, heat-resistant stabilizer, and processing aid. The heat-resistant and weather-resistant polypropylene masterbatch prepared in the present invention has the following advantages: (1) The heat-resistant and weather-resistant polypropylene masterbatch prepared in the present invention can be used to improve the heat-resistant and weather-resistant properties of glass fiber reinforced polypropylene materials. It is non-toxic and harmless, and can be directly added and used, which saves production costs and improves production efficiency. (2) The present invention uses a formula system with high heat resistance and high weather resistance. It has been proved by experiments that the material of the present invention is added to ordinary glass fiber reinforced polypropylene material, and the material will not pulverize for 1000 hours at 150°C; Under the condition of 3000 hours, the notched impact strength retention rate of the material is ≥90%.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification and processing, and specifically relates to a preparation method and application of a polypropylene heat-resistant and weather-resistant masterbatch. Background technique [0002] Glass fiber reinforced polypropylene (PP) materials have excellent properties such as high strength, low density, and low warpage and creep, and are widely used in structural parts such as automobiles and home appliances. But the weather resistance of polypropylene is very poor. There are tertiary carbon atoms in the main chain of PP. During granulation processing, storage and use, it is very easy to age and degrade under the action of light, heat and oxygen, and even lose its excellent comprehensive physical properties and use value. The heat and weather resistance of glass fiber reinforced polypropylene materials currently used in China is even worse, because the residual maleic anhydride and per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K5/3415C08K3/04C08K5/3435C08J3/22
CPCC08K3/04C08K5/3415C08K13/02C08L23/12C08L23/14C08L2201/08C08L2205/025C08L2205/03C08L2205/035C08L23/06C08K13/04C08K7/14
Inventor 杨桂生宋伟华汪海
Owner HEFEI GENIUS NEW MATERIALS
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