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PP/POE supercritical foaming composite material and preparation method thereof

A composite material and supercritical technology, which is applied in the field of PP/POE supercritical foam composite material and its preparation, can solve the problems of poor sealing, low foaming ratio, uneven cells, etc., and achieve optimal mechanical properties , Improve the tensile strength and good compatibility

Pending Publication Date: 2020-07-10
福建安达福新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. The foaming ratio is low, the cells are uneven, the size is large, and the cell structure is incomplete, the sealing is not good, and the foaming effect is not good;
[0009] 2. Poor elasticity, easy to produce permanent deformation during use, poor mechanical properties such as tensile strength, and poor comprehensive performance

Method used

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  • PP/POE supercritical foaming composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A PP / POE supercritical foam composite material, comprising the following raw materials in parts by weight:

[0053] 140-165 parts of polypropylene,

[0054] 35-42 parts of polyolefin elastomer,

[0055] 10-14 parts of maleic anhydride grafted polypropylene,

[0056] 10-14 parts of maleic anhydride grafted polypropylene modifier,

[0057] 2 to 3 parts of nucleating agent,

[0058] 8-12 parts of mesoporous silica,

[0059] 1.5-2 parts of dispersant,

[0060] 0.8-1.2 parts of cross-linking agent.

[0061] In this embodiment, the PP / POE supercritical foam composite material is preferably but not limited to include the following raw materials in parts by weight:

[0062] 153 parts of polypropylene,

[0063] 38.5 parts of polyolefin elastomer,

[0064] 12 parts of maleic anhydride grafted polypropylene,

[0065] 12 parts of maleic anhydride grafted polypropylene modifier,

[0066] 2.5 parts of nucleating agent,

[0067] Mesoporous silica 10 parts,

[0068] 1.8 par...

Embodiment 2

[0085] A PP / POE supercritical foam composite material, comprising the following raw materials in parts by weight:

[0086] 140 parts of polypropylene,

[0087] 35 parts of polyolefin elastomer,

[0088] 10 parts of maleic anhydride grafted polypropylene,

[0089] 10 parts of maleic anhydride grafted polypropylene modifier,

[0090] 2 parts of nucleating agent,

[0091] Mesoporous silica 8 parts,

[0092] 1.5 parts of dispersant,

[0093] 0.8 parts of crosslinking agent.

[0094] In this embodiment, the polyolefin elastomer is a mixture of ethylene-butene copolymer and ethylene-octene copolymer, and the mass ratio of the two is 1:0.4.

[0095] In this example, the maleic anhydride-grafted polypropylene modifier is a polypropylene-grafted polypropylene modifier prepared by reacting epoxy-group-containing polysiloxane with maleic anhydride-grafted polypropylene at a mass ratio of 1:2.4. branch silicon-containing copolymers.

[0096] In this embodiment, the pore diameter o...

Embodiment 3

[0108] A PP / POE supercritical foam composite material, comprising the following raw materials in parts by weight:

[0109] 165 parts of polypropylene,

[0110] 42 parts of polyolefin elastomer,

[0111] 14 parts of maleic anhydride grafted polypropylene,

[0112] 14 parts of maleic anhydride grafted polypropylene modifier,

[0113] 3 parts of nucleating agent,

[0114] Mesoporous silica 12 parts,

[0115] 2 parts of dispersant,

[0116] 1.2 parts of crosslinking agent.

[0117] In this embodiment, the polyolefin elastomer is a mixture of ethylene-butene copolymer and ethylene-octene copolymer, and the mass ratio of the two is 1:0.5.

[0118] In this example, the maleic anhydride-grafted polypropylene modifier is a polypropylene-grafted modifier prepared by reacting epoxy-group-containing polysiloxane with maleic anhydride-grafted polypropylene at a mass ratio of 1:3.2. branch silicon-containing copolymers.

[0119] In this embodiment, the pore diameter of the mesoporou...

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Abstract

The invention discloses a PP / POE supercritical foaming composite material and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 140 to 165 parts of polypropylene, 35 to 42 parts of polyolefin elastomer, 10 to 14 parts of maleic anhydride grafted polypropylene, 10 to 14 parts of a maleic anhydride grafted polypropylene modifier, 2 to 3 partsof a nucleating agent, 8 to 12 parts of mesoporous silica, 1.5 to 2 parts of a dispersing agent and 0.8 to 1.2 parts of a cross-linking agent. According to the PP / POE supercritical foaming compositematerial disclosed by the invention, the raw material composition is carefully selected, and the content of each raw material is optimized, so that the respective advantages are brought into full play, mutual complementation and mutual promotion are realized, the product quality is improved, and the prepared PP / POE supercritical foaming composite material is high in tensile strength and good in mechanical property; the compression set rate is low, and good elasticity is achieved; the foaming ratio is high, foam holes are uniform, the size is moderate and compact, the foam hole structure is complete, the sealing performance is good, and the foaming effect is good.

Description

technical field [0001] The invention relates to the technical field of polymer foaming materials, in particular to a PP / POE supercritical foaming composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) belongs to thermoplastic resin and is one of the five general-purpose resins. The appearance is white pellets, odorless and non-toxic. Due to the regular crystal structure, it has the advantages of easy processing, impact resistance, flex resistance and good electrical insulation. It is used in the automotive industry, household appliances, electronics, packaging and building materials and furniture, etc. has a wide range of applications. [0003] Expanded polypropylene material. Expanded polypropylene beads (EPP) use PP as the main raw material and use physical foaming technology to make expanded beads. It is mainly used for mold foam molding into various shapes and sizes for use in different occasions. Compared with commonly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L51/06C08L83/10C08K7/26C08K3/26C08K5/14C08J9/12
CPCC08J9/122C08J9/0061C08J9/0095C08J9/0066C08J9/0023C08J2203/06C08J2203/08C08J2205/052C08J2323/12C08J2423/08C08J2451/06C08J2483/10
Inventor 丁尤权杨文华丁星懿丁雪峰吕方舟林清锴
Owner 福建安达福新材料科技有限公司
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