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Micro-foaming polypropylene material and preparation method thereof

A polypropylene material and micro-foaming technology, applied in the field of foamed plastics, can solve the problems of poor thermoformability and poor foaming performance of micro-foamed polypropylene materials, achieve good thermoformability, strengthen rigidity, and improve foaming rate effect

Inactive Publication Date: 2018-10-23
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a micro-foamed polypropylene material and a preparation method thereof, which solves the technical problems of poor thermoformability and foaming performance of the micro-foamed polypropylene material in the prior art

Method used

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  • Micro-foaming polypropylene material and preparation method thereof

Examples

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Embodiment 1

[0020] The micro-foamed polypropylene material in this embodiment is made of the following raw materials in parts by weight: 0.5 parts of halloysite nanomaterial, 3 parts of microcapsule foaming agent, and 96.5 parts of modified polypropylene;

[0021] The preparation method of the micro-foamed polypropylene material of the present embodiment comprises the following steps:

[0022] S1, weighing 0.5 parts of raw material halloysite (HNTs) nanomaterials in parts by weight, 3 parts of microcapsule foaming agent, and 96.5 parts of modified polypropylene are uniformly mixed in proportion to obtain a mixed material;

[0023] S2. The mixed material obtained in step S1 is injection-molded to prepare a micro-foamed polypropylene material under the condition of secondary mold opening.

[0024] In this example, the modified polypropylene is prepared by mixing 80 parts of polypropylene, 5 parts of compatibilizer POE, and 15 parts of talcum powder.

Embodiment 2

[0026] The micro-foamed polypropylene material in this embodiment is made of the following raw materials in parts by weight: 0.8 parts of halloysite nanomaterial, 2 parts of microcapsule foaming agent, and 97.2 parts of modified polypropylene;

[0027] The preparation method of the micro-foamed polypropylene material of the present embodiment comprises the following steps:

[0028] S1, weighing 0.8 parts by weight of raw material halloysite (HNTs) nanomaterials, 2 parts of microcapsule foaming agent, and 97.2 parts of modified polypropylene are uniformly mixed in proportion to obtain a mixed material;

[0029] S2. The mixed material obtained in step S1 is injection-molded to prepare a micro-foamed polypropylene material under the condition of secondary mold opening.

[0030] In this example, the modified polypropylene is prepared by mixing 75 parts of polypropylene, 8 parts of compatibilizer POE, and 17 parts of talcum powder.

Embodiment 3

[0032] The microfoamed polypropylene material in this embodiment is made of the following raw materials in parts by weight: 0.3 parts of halloysite nanomaterial, 2 parts of microcapsule foaming agent, and 97.7 parts of modified polypropylene;

[0033] The preparation method of the micro-foamed polypropylene material of the present embodiment comprises the following steps:

[0034] S1, weighing 0.3 parts of raw material halloysite (HNTs) nanomaterials in parts by weight, 2 parts of microcapsule foaming agent, and 97.7 parts of modified polypropylene are uniformly mixed in proportion to obtain a mixed material;

[0035] S2. The mixed material obtained in step S1 is injection-molded to prepare a micro-foamed polypropylene material under the condition of secondary mold opening.

[0036] In this embodiment, the modified polypropylene is prepared by mixing 75 parts of polypropylene and 20 parts of talcum powder.

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Abstract

The invention provides a micro-foaming polypropylene material and a preparation method thereof, which relate to the technical field of foaming plastic. The micro-foaming polypropylene material is prepared by the following raw materials: an endellite nano-material, a microcapsule foaming agent, and modified polypropylene. The raw materials are uniformly mixed, an injection moulding method is employed, and the micro-foaming polypropylene material is prepared under twice-open molding condition, and the micro-foaming polypropylene material has the advantages of compact, uniform and fine foam holes, and excellent mechanical property.

Description

technical field [0001] The invention relates to the technical field of foamed plastics, in particular to a micro-foamed polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene material is currently widely used in the field of automotive interior and exterior decoration due to its advantages such as low price, low density, and excellent comprehensive mechanical properties. At present, the automotive industry has increasingly strong requirements for lightweight, energy saving and environmental protection. Foamed materials have undoubtedly become the first choice for such designs. Foamed polypropylene materials are currently used in door panels and other parts of a few high-end models. However, the existing foaming methods are mainly physical foaming, which requires high equipment and cannot be used. Large-scale promotion of traditional injection molding machines. The chemically foamed polypropylene material cannot be maturely appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08L23/06C08K3/34C08K7/26C08J9/08
CPCC08J9/08C08J2203/02C08J2323/12C08J2423/06C08J2423/08C08K2201/003C08K2201/004C08K2201/011C08L23/14C08L2203/14C08L2203/30C08L2205/02C08L2205/03C08L23/0815C08L23/06C08K3/34C08K7/26
Inventor 杨桂生计娉婷廖雄兵朱敏
Owner HEFEI GENIUS NEW MATERIALS
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