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High-rigidity, low-odor and low-linearity polypropylene whisker modified material

A linear polypropylene, low odor technology applied to low linear polypropylene whisker compounds. , high impact, high rigidity, low odor field, can solve the problems of thermal deformation temperature, small dimensional stability help, material odor cannot be guaranteed, and it is difficult to apply auto parts, etc., to achieve easy implementation, improve dimensional stability, and reduce linear expansion coefficient Effect

Inactive Publication Date: 2018-04-24
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent CN10106554567 A discloses a preparation method of high-impact polypropylene resin composition, by adding a specific polybutene alloy to polypropylene, while maintaining the heat deformation resistance and rigidity of polypropylene, its Toughness, but this method has little help in terms of heat distortion temperature and dimensional stability of the material
[0005] Patent CN105754232A discloses a heat-resistant, high-rigid, high-toughness transparent thermoformed polypropylene and its preparation method. By selecting a suitable polypropylene production device, a catalyst, and an external electron donor, a heat-resistant, high-rigid, high-toughness polypropylene is synthesized, but due to Its melting index is low, it is difficult to apply in auto parts
[0006] Patent CN104558842A discloses a low linear expansion coefficient bumper material and its preparation method. By adding styrene-based elastomers without double bonds, the linear expansion coefficient is reduced and the dimensional stability of the material is improved. However, due to the styrene-based With the addition of elastomer, the odor VOC of the material cannot be guaranteed, and the cost is high

Method used

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  • High-rigidity, low-odor and low-linearity polypropylene whisker modified material
  • High-rigidity, low-odor and low-linearity polypropylene whisker modified material
  • High-rigidity, low-odor and low-linearity polypropylene whisker modified material

Examples

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Effect test

Embodiment 1

[0038] A high-impact, high-rigidity, low-odor, low-linear polypropylene whisker modified material, which is made of the following raw materials in parts by weight: impact copolymer polypropylene 1 30.0, impact copolymer polypropylene 2 10.0 , homopolypropylene 20.0, toughening agent 1 (SEBS) 3.0, toughening agent 2 (ethylene-octene copolymer) 7.0, whisker (whisker masterbatch) 20.0, nucleating agent 1 (HPN20E) 0.2, into Nucleating Agent 2 (TMB-5) 0.2, Odor Adsorbent 2.0, Antioxidant 1010 0.3, Antioxidant 168 0.3.

[0039] The preparation method of the described high-impact, high-rigid, low-odor, low-linear polypropylene whisker modified material comprises the following steps:

[0040] (1) Weigh polypropylene, whiskers, toughening agent, nucleating agent, odor adsorbent, primary antioxidant and auxiliary antioxidant, and mix it in a high-speed mixer for 1-3min at high speed, mix well, Get the premix.

[0041] (2) Add the premixed material into the main feeding port of the twi...

Embodiment 2

[0044] A high-impact, high-rigidity, low-odor, low-linear polypropylene whisker modified material, the modified material is made of raw materials including the following parts by weight: impact copolymer polypropylene 1 37.0, impact copolymer polypropylene 2 10.0 , homopolypropylene 20.0, toughening agent 1 (SEBS) 3.0, toughening agent 2 (ethylene-octene copolymer) 7.0, whiskers (whisker masterbatch) 15.0, nucleating agent 1 (HPN20E) 0.2, into Nucleating Agent 2 (TMB-5) 0.4, Odor Adsorbent 2.0, Antioxidant 1010 0.3, Antioxidant 168 0.3.

[0045] The preparation method of the high-impact, high-rigid, low-odor, low-linear polypropylene whisker-modified material is the same as that in Example 1.

Embodiment 3

[0047]A high-impact, high-rigidity, low-odor, low-linear polypropylene whisker modified material, the modified material is made of raw materials including the following parts by weight: impact copolymer polypropylene 1 42.0, impact copolymer polypropylene 2 10.0 , homopolypropylene 20.0, toughening agent 1 (SEBS) 2.0, toughening agent 2 (ethylene-octene copolymer) 3.0, whisker (whisker masterbatch) 10.0, nucleating agent 2 (TMB-5) 0.4 , odor adsorbent 2.0, antioxidant 1010 0.3, antioxidant 168 0.3, placed in a high-speed mixer and fully stirred.

[0048] The preparation method of the high-impact, high-rigid, low-odor, low-linear polypropylene whisker-modified material is the same as that in Example 1.

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Abstract

The invention provides a high-rigidity, low-odor and low-linearity polypropylene whisker modified material which is characterized in that the modified material is prepared from the following raw materials in parts by weight: 40-70 parts of polypropylene resin, 5-30 parts of whisker, 5-15 parts of flexibilizer, 0.2-2 parts of nucleating agent, 2-5 parts of odor adsorbent, 0.2-0.4 part of main antioxidant and 0.2-0.4 part of assistant antioxidant. According to the high-rigidity, low-odor and low-linearity polypropylene whisker modified material provided by the invention, by adopting proper polypropylene, elastomer and nucleating agent, the thermal deformation temperature and impact strength of the material are remarkably enhanced, the linear expansion coefficient of the material is reduced,and the dimensional stability of the material is improved; meanwhile, since few additional components are added, the color matching ability of the material is not influenced, and the material is easyto implement and has relatively wide applicability.

Description

technical field [0001] The invention belongs to the field of modified plastics, in particular to a modified polypropylene whisker material with high impact, high rigidity, low odor and low linearity. Background technique [0002] In recent years, polypropylene materials have been widely used in the automotive field. Parts such as bumpers, dashboards, door panels, and pillars will use polypropylene materials. Different parts have different requirements for the mechanical properties of materials. Automobiles may operate in different environments and temperatures. It is used under certain conditions, and the size of polypropylene material changes significantly with the change of temperature, which causes dimensional problems in the assembly and use of its products, which may lead to other problems such as deformation and fracture. The balance of rigidity and toughness and the resistance to alternating cold and heat have high requirements. Improving the toughness, rigidity and d...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/12C08L53/02C08L23/08C08K13/04C08K7/02C08K5/134C08K5/526
Inventor 张栋玮李晟张春怀李欣徐昌竹钱文轩柴新龙陶四平
Owner TIANJIN KINGFA NEW MATERIAL
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