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High-weather-resistant high-tenacity reinforced polypropylene material for post insulator and preparation method of reinforced polypropylene material

A post insulator and polypropylene material technology, applied in the field of post insulator reinforced polypropylene material with high weather resistance and high toughness and its preparation, can solve the problems of polypropylene material aging, poor weather resistance and physical performance deterioration of polypropylene, and achieve Effects of reducing damage, reducing luster, and stabilizing color

Inactive Publication Date: 2018-05-04
GUANGDONG WAYLAM ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the weather resistance of unmodified polypropylene is poor. Due to the presence of methyl groups on its molecular chain segments, under the action of light, heat and oxygen, the hydrogen on the tertiary carbon atoms is easily removed to form tertiary carbon radicals. , thus causing various reactions in the molecular chain, resulting in the aging of polypropylene materials and the deterioration of physical properties

Method used

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  • High-weather-resistant high-tenacity reinforced polypropylene material for post insulator and preparation method of reinforced polypropylene material
  • High-weather-resistant high-tenacity reinforced polypropylene material for post insulator and preparation method of reinforced polypropylene material
  • High-weather-resistant high-tenacity reinforced polypropylene material for post insulator and preparation method of reinforced polypropylene material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh the raw materials according to the weight ratio, 70 parts of random copolymer polypropylene resin, 20 parts of alkali-free glass fiber yarn, 6 parts of compatibilizer (maleic anhydride and polyethylene), and compound weathering agent (anti-ultraviolet absorber) 1 part, lubricating dispersant (EBS mixed with polyethylene wax) 0.3 part, antioxidant (hindered phenols) 0.7 part, green toner 2 parts, mix in a high-speed mixer for 5-8 minutes, and then mix the mixed material It is placed in a twin-screw extruder for melting and granulation. The extrusion process is: the temperature in the first zone is 150℃, the second to fourth zone is 170~185℃, and the fifth to ninth zone is 185~ 210℃, head temperature is 205℃, screw speed of main engine is 350~420rpm, feeding frequency is 18~24Hz.

Embodiment 2

[0028] Weigh the raw materials according to the weight ratio, random copolymer polypropylene resin 57 parts, alkali-free glass fiber yarn 32 parts, compatibilizer (methacrylic acid and glycidyl methacrylate and styrene and butadiene) 5 Parts, 0.5 parts of weathering agent (light stabilizer), 0.6 part of lubricating dispersant (calcium stearate), 0.9 part of antioxidant (thioester antioxidant), 4 parts of green toner, mixed at high speed The machine is mixed for 5-8 minutes, and then the mixed material is placed in a twin-screw extruder to be melted and pelletized. The extrusion process is as follows: the temperature in the first zone is 150℃, and the second to fourth zone is 170~ 185℃, zone 5~9 zone 185~210℃, temperature of machine head is 205℃, screw speed of main engine 350~420rpm, feeding frequency 18~24Hz.

Embodiment 3

[0030] Weigh the raw materials according to the weight ratio: 47 parts of random copolymer polypropylene resin, 40 parts of alkali-free glass fiber yarn, 7 parts of compatibilizer (copolymer of acrylic acid and styrene and butadiene), and compound weathering agent ( Anti-ultraviolet absorber and light stabilizer mixed) 1 part, lubricating dispersant (mixed zinc stearate and silicone powder) 0.6 part, antioxidant (thioester antioxidant) 0.4 part, green toner 4 parts, Mix in a high-speed mixer for 5-8 minutes, then place the mixed material in a twin-screw extruder for melting and granulation. The extrusion process is as follows: the temperature in the first zone is 150°C, the second to the fourth zone It is 170~185℃, zone 5~9 is 185~210℃, head temperature is 205℃, screw speed of main engine is 350~420rpm, feeding frequency is 18~24Hz.

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Abstract

The invention discloses a high-weather-resistant high-tenacity reinforced polypropylene material for a post insulator and a preparation method of the reinforced polypropylene material. According to the key point of the technical scheme, the reinforced polypropylene material contains the following components in percentage by weight: 41%-70% of random copolymerization polypropylene, 5%-10% of a compatilizer, 0.5%-2% of a compound weather-resistant agent, 0.3%-1% of a lubrication dispersing agent, 0.4%-1% of an antioxidant, 20%-40% of glass fibers and 2%-5% of a toner. The high-weather-resistanthigh-tenacity reinforced polypropylene material for the post insulator has the advantages that the weather resistance and the tenacity are high, the retention rate of mechanical performance under a photothermal oxygen aging condition is high, the color stability is good, and the like.

Description

【Technical Field】 [0001] The invention belongs to the field of polymer materials, in particular to a reinforced polypropylene material with high weather resistance and high toughness for pillar insulators and a preparation method thereof. 【Background technique】 [0002] With the rapid development of science and technology, people's quality of daily life has also been continuously improved. High weather-resistant reinforced polypropylene (PP) is a new type of ecological functional material. Because of its excellent mechanical properties, weather resistance and easy processing performance, it is also of great significance to improve the ecological environment and maintain human health, so it has been widely used in power grids System pillar insulators, stadium seats, public sports facilities, stadium lawn protection grids and many other outdoor areas. However, unmodified polypropylene has poor weather resistance. Due to the presence of methyl groups on its molecular chain, under t...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L51/06C08L51/00C08K5/00C08K3/014C08J5/04B29B9/06
Inventor 袁正凯皮正亮葛嘉宝
Owner GUANGDONG WAYLAM ENG PLASTICS
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