Acrylic resin with high toughness

A polypropylene resin and polyethylene resin technology, applied in the field of polypropylene resin, can solve the problems of inability to meet industrial production, poor low temperature impact toughness, expensive toughening agent, etc., and achieve excellent impact resistance, fatigue resistance and bending resistance. , a wide range of effects

Inactive Publication Date: 2009-10-14
广东智汇赛特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polypropylene is widely used in various industries, and its engineering tendency is very obvious. However, the toughness of polypropylene, especially the low-temperature impact toughness, is very poor, which limits its use.
There are many ways to improve the toughness of polypropylene. Generally, toughening agents are added to polypropylene. At present, ethylene-propylene rubber (EPR), ethylene-propylene-diene rubber (EPDM), ethylene-octene copolymer (POE), polybutylene Diene (BR), butyl rubber, polyisobutylene, ethylene-vinyl acetate copolymer (EVA), ethylene-vinyl alcohol copolymer (EVOH), nitrile rubber (NBR), neoprene rubber (CIIR) and other substances as toughening However, these toughening agents are relatively expensive, and there are disadvantages such as complex process and poor fluidity of materials.
Due to the limitations of these factors, the scope of use of existing polypropylene resins is limited and cannot meet the needs of more industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 65 parts by weight of the composition of syndiotactic PP and block copolymerized polypropylene, 25 parts by weight of low-density polyethylene resin, and 5 parts by weight of the compatibilizer POE graft composition into the mixer, and stir at a medium speed at room temperature 1-2 minutes, add 0.3 parts by weight of dispersant white mineral oil and mix for 1-2 minutes, then add 0.2 parts by weight of the composition of antioxidant 1010 and antioxidant 168, and mix with 4.5 parts of calcium carbonate at a medium speed Discharge in 2-3 minutes, discharge into the twin-screw extrusion hopper, extrude the strands through the twin-screw extruder, cool and dry the strands, send them to the pelletizer, cut into pellets, and become the product of the present invention . The tensile strength of the polypropylene resin of the present invention is 24MPa, the elongation at break is 1044%, the bending strength is 16MPa, the bending modulus is 490MPa, the Vicat is 124°C, and the...

Embodiment 2

[0031] Add 60 parts by weight of the composition of isotactic PP and block copolymerized polypropylene, 20 parts by weight of linear low-density polyethylene resin, and 10 parts by weight of the compatibilizer EPR composition into the mixer, and stir at a medium speed at room temperature for 1 -2 minutes, add 0.5 parts by weight of dispersant white mineral oil and mix for 1-2 minutes, then add 0.5 parts by weight of antioxidant 1010 and ultraviolet absorber, lubricant EBS and metal stearate, 9 parts by weight The composition of talcum powder is stirred and mixed at a medium speed for 2-3 minutes to discharge the material, discharged into the twin-screw extrusion hopper, extruded strands through the twin-screw extruder, cooled, dried and sent to the pelletizer. Cut into pellets to become the product of the present invention. The tensile strength of the polypropylene resin of the present invention is 20MPa, the elongation at break is 1308%, the bending strength is 17MPa, the ben...

Embodiment 3

[0033] Add 75 parts by weight of the composition of isotactic PP, syndiotactic PP and block copolymerized polypropylene, 10 parts by weight of high-density polyethylene resin, and 8 parts by weight of the compatibilizer EPDM into the mixer. Stir at high speed for 1-2 minutes, add 0.4 parts by weight of dispersant white mineral oil and mix for 1-2 minutes, then add 0.5 parts by weight of lubricant EBS (ethylene bis stearamide), PE wax and ultraviolet absorber, anti The composition of oxygen agent, 6.1 parts by weight of rod-shaped wollastonite is stirred and mixed at a medium speed for 2-3 minutes, and the material is discharged into the twin-screw extrusion hopper, and the material strand is extruded through the twin-screw extruder, and the material strand is cooled and blown. Dry feed into pelletizer, be cut into pellets, promptly become the product of the present invention. The tensile strength of the polypropylene resin of the present invention is 23MPa, the elongation at b...

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Abstract

The invention discloses acrylic resin with high toughness, which comprises the following components according to the weight portion: 50-75 of acrylic resin, 5-35 of polyethylene resin, 5-35 of compatilizer, 0.2-1 of processing materials, 4-15 of filling agent and 0.3-1 of dispersing agent, wherein the acrylic resin is one or the composition of more than two of isotactic PP, syndiotactic PP, block co-polymerized polypropylene or random co-polymerized polypropylene, and melting flow index of the acrylic resin is (0.4-30)g/10min. The invention aims at overcoming the defects of the prior art, and providing the acrylic resin with rich source, low price, high elongation at break, strong temperature toleration, high softening point, excellent impact property, fatigue and bending resisting properties and wide application.

Description

technical field [0001] The invention relates to a polypropylene resin, in particular to a polypropylene resin with high toughness. Background technique [0002] Polypropylene (PP) is cheap, light, corrosion-resistant, has good processability, good mechanical balance, wide application range, and has good heat resistance among general-purpose resins. Polypropylene is widely used in various industries, and its engineering tendency is very obvious. However, the toughness of polypropylene, especially the low-temperature impact toughness, is very poor, which limits its use. There are many ways to improve the toughness of polypropylene. Generally, toughening agents are added to polypropylene. At present, ethylene-propylene rubber (EPR), ethylene-propylene-diene rubber (EPDM), ethylene-octene copolymer (POE), polybutylene Diene (BR), butyl rubber, polyisobutylene, ethylene-vinyl acetate copolymer (EVA), ethylene-vinyl alcohol copolymer (EVOH), nitrile rubber (NBR), neoprene rubber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08K5/20C08L23/06C08K3/36
Inventor 王成望陶巍高维松
Owner 广东智汇赛特新材料有限公司
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