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Low-shrinkage high-weatherproofness polypropylene composite material for shell of electric tool

A technology for electric tools and composite materials, applied in the field of high weather-resistant polypropylene composite materials and low shrinkage, can solve the problems of low weather resistance, poor product stability, and low compatibility of composite materials, and achieve stable product performance and reduce shrinkage. , the effect of improving the strength of the material

Inactive Publication Date: 2014-10-08
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large difference in structure between styrene and PP, the compatibility is low, and the two materials are prone to delamination, resulting in poor product stability. At the same time, because the weather resistance of PP and styrene is poor, the weather resistance of the composite material performance is also lower

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh 45 parts of dry copolymerized polypropylene K7926 (Shanghai Secco), 20 parts of calcium carbonate, 30 parts of talcum powder, 0.1 part of antioxidant 1010, 0.1 part of antioxidant DSTDP, toughener 5 parts of POE, 0.2 parts of lubricant EBS (N,N'-ethylene bisstearamide), 0.5 parts of coupling agent KH550, 0.1 parts of light stabilizer V703, and 2 parts of compatibilizer PP-G, Add the above-mentioned materials into a high-speed mixer and mix them evenly, then put the mixed materials into an extruder, and cut into pellets after cooling with water. Among them, the processing temperature of the extruder is 180°C, 190°C, 195°C, 195°C, 200°C, 205°C from the feeding port to the die port in sequence, the speed of the main machine is 50rpm, and the vacuum degree is 0.3MPa.

Embodiment 2

[0031] Weigh respectively 50 parts of dry copolymerized polypropylene K9016 (Yanshan Petrochemical), 20 parts of alkali-free glass fiber ER14-1000-988A, 25 parts of talcum powder, 0.1 part of antioxidant 1010, and toughening agent according to the weight ratio. 8 parts of EPDM, 0.1 parts of antioxidant DSTDP, 0.2 parts of antioxidant 168, 0.2 parts of lubricant EBS (N,N'-ethylene bisstearamide), 0.2 parts of light stabilizer V703, coupling agent KH550 is 0.3 parts, and compatibilizer PP-G is 2 parts. Put the above materials into a high-speed mixer and mix them evenly. Among them, the processing temperature of the extruder is 180°C, 190°C, 195°C, 195°C, 200°C, 205°C from the feeding port to the die port in sequence, the speed of the main machine is 60rpm, and the vacuum degree is 0.5MPa.

Embodiment 3

[0033] Weigh respectively 55 parts of dry copolymerized polypropylene YPJ1215C (Yangzi Petrochemical), 15 parts of alkali-free glass fiber ER14-1000-988A, 30 parts of talcum powder, 0.2 parts of antioxidant 1010, and 0.2 parts of antioxidant 0.1 part of DSTDP, 0.2 part of antioxidant 168, 0.3 part of light stabilizer V703, 6 parts of toughening agent BR, 0.2 part of lubricant EBS (N,N'-ethylene bis stearamide), coupling agent KH550 is 0.3 parts, and compatibilizer PP-G is 2 parts. Put the above materials into a high-speed mixer and mix them evenly. Among them, the processing temperature of the extruder is 180°C, 190°C, 195°C, 195°C, 200°C, 205°C from the feeding port to the die port in sequence, the speed of the main machine is 60rpm, and the vacuum degree is 0.5MPa.

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Abstract

The invention discloses a low-shrinkage high-weatherproofness polypropylene composite material for a shell of an electric tool. The polypropylene composite material is prepared from the following components in parts by weight: 45 to 85 parts of co-polypropylene, 10 to 50 parts of enhancer, 1 to 15 parts of flexibilizer, 0.1 to 0.5 part of coupling agent, 0.1 to 0.5 part of antioxidant, 0.1 to 0.5 part of light stabilizer and 0 to 5 parts of other additives. According to the polypropylene composite material disclosed by the invention, the shrinkage rate of a matrix resin is decreased, so that the dimensional stability of the material is improved; meanwhile, the dimensional stability of the material is improved, so that the polypropylene composite material is capable of replacing ASA (Acrylonitrile Styrene Acrylate Copolymer) to be used for producing the shell of the electric tool.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a low-shrinkage, high-weather-resistant polypropylene composite material used for electric tool shells. [0002] technical background [0003] With the rapid development of lithium battery technology, the capacity of the battery has been continuously increased and the price has been gradually reduced, which has laid a solid foundation for the rapid development of electric tools. In order to meet the market needs of safety, portability, and durability of power tools, ASA resin, a polymer material with flexible structural design, beautiful color, durability, and low price, has gradually become the first choice to replace metal casings. ASA resin is formed by copolymerization of styrene, acrylonitrile and acrylic rubber. It has the characteristics of high fillet strength, good colorability, rich colors, and excellent weather resistance. It can be us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08L9/00C08L23/16C08K13/02C08K13/04C08K3/26C08K3/34C08K5/134C08K7/14C08K5/526
CPCC08L23/14C08K2201/003C08L2201/08C08L2203/20C08L2205/03C08L23/0815C08L51/06C08K13/02C08K3/34C08K2003/265C08K5/20C08L23/16C08K13/04C08K7/14C08K5/1345C08L9/00C08L83/04
Inventor 杨桂生汪海
Owner HEFEI GENIUS NEW MATERIALS
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