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Impact-resistant polypropylene composite and preparation method thereof

A technology of composite materials and polypropylene, applied in the field of polymer materials, can solve problems such as limitations and impact resistance that cannot meet international standards, and achieve the effects of easy molding and processing, good mechanical properties, and good impact resistance

Active Publication Date: 2015-07-15
SUZHOU SUNWAY POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding 30% glass fiber can reduce the shrinkage rate to 0.7%. Both homopolymer and copolymer polypropylene materials have excellent moisture absorption resistance, acid and alkali corrosion resistance, and solubility resistance. However, their impact resistance The force cannot meet the international standard, so its application in automobile manufacturing has been greatly restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The inorganic filler described in embodiment 1 and embodiment 2 is calcium carbonate; The inorganic filler described in embodiment 3 and embodiment 4 is silicates.

[0036] The antioxidant described in embodiment 1 and embodiment 2 is antioxidant 1010; The antioxidant described in embodiment 3 is antioxidant 168; The antioxidant described in embodiment 4 is antioxidant PS802.

[0037] The flame retardants described in Example 1 and Example 2 are inorganic non-halogen flame retardants; the flame retardants described in Example 3 and Example 4 are phosphorus-based flame retardants.

[0038] According to the components of each embodiment in Table 1 and the parts by weight of each component, the method for preparing the impact-resistant polypropylene composite material respectively, the specific process is as follows:

[0039] (1) Weighing raw materials: weighing each component according to the polypropylene composite material material described in claim 1;

[0040] (2) P...

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Abstract

The invention discloses an impact-resistant polypropylene composite which comprises the following components in parts by weight: 100 parts of polypropylene, 15-25 parts of rubber, 5-10 parts of polyamic acid, 20-35 parts of inorganic filler, 1-3 parts of compatilizer, 0.5-2 parts of antioxygen, 0-1 part of antistatic agent, and 0.1-3 parts of fire retardant. According to the impact-resistant polypropylene composite, the rubber is added to raw polypropylene for modifying polypropylene, and the inorganic filler is added to the components considering that the rubber can obviously reduce flexural modulus, heat resistance and other properties of the composite, so that the prepared composite is good in impact resistance, the curvature and the heat resistance of the composite are ensured, and the composite is easy to form and process, and good in mechanical property, and can be widely applied to the field of automobiles.

Description

technical field [0001] The invention relates to a polypropylene composite material and a preparation method thereof, in particular to a low-shrinkage modified polypropylene composite material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] With the development of the automobile industry, polypropylene is widely used in automobiles due to its low density, good rigidity, flex resistance, chemical corrosion resistance, good insulation, and low temperature impact resistance and thermal aging properties after modification. interior and exterior accessories. [0003] Polypropylene, including copolymers of propylene and a small amount of ethylene, is usually a translucent, colorless solid, odorless and non-toxic. Because of its regular structure and high degree of crystallization, its melting point can be as high as 167°C. It is heat-resistant and corrosion-resistant, and its products are available Steam steril...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/10C08L23/16C08L79/08C08L51/06C08K13/02C08K3/26C08K3/34C08K5/19B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C2947/92895B29C2947/9259B29C47/0011B29C2947/92885B29C2947/92704B29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 余林华
Owner SUZHOU SUNWAY POLYMER
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