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A kind of polypropylene composite material with excellent water resistance and its preparation method and application

A polypropylene and water resistance technology, applied in the field of polypropylene composite materials and their preparation, can solve problems such as reduced water resistance, and achieve the effects of improving compatibility, facilitating diffusion, and improving water resistance.

Active Publication Date: 2022-06-07
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because polypropylene contains tertiary carbon, it is easy to decompose and produce small molecular substances under the conditions of high temperature and strong shear. In addition, residues in the polymerization process of polypropylene, small molecule residues or impurities in fillers or additives will all As a result, the water resistance of polypropylene composite materials is reduced, and research has found that the substances that affect the water resistance of polypropylene materials are not the same as the substances that affect the odor and VOC of polypropylene materials, and so far no relevant patents have been studied

Method used

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  • A kind of polypropylene composite material with excellent water resistance and its preparation method and application
  • A kind of polypropylene composite material with excellent water resistance and its preparation method and application
  • A kind of polypropylene composite material with excellent water resistance and its preparation method and application

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Effect test

Embodiment 1

[0045]A kind of polypropylene composite material with excellent water resistance, its raw material formula is shown in Table 2, and its preparation method includes the following steps: (1) mixing talc, elastomer B, auxiliary antioxidant B, lubricant B, polypropylene B Add it to an internal mixer or other meshing equipment and mix evenly, and then granulate to obtain talc masterbatch; (2) pulverize the PET-based hollow fiber to 150-325 mesh with a fiber shear mill, add it to the remover and mix evenly , to obtain the fiber mixture of the removing agent; (3) adding polypropylene A, elastomer A, main antioxidant, auxiliary antioxidant A, light stabilizer, and lubricant A into the high mixer for mixing, and then adding to In the twin-screw extruder, the talc masterbatch obtained in step (1) is separately added to the twin-screw extruder, and the above-mentioned materials are all added from the main feeding port of the twin-screw extruder. Step (2) The fiber mixture of the remover ...

Embodiment 2

[0049] A kind of polypropylene composite material with excellent water resistance, its raw material formula is shown in Table 2, and its preparation method includes the following steps: (1) mixing talc, elastomer B, auxiliary antioxidant B, lubricant B, polypropylene B Add it to an internal mixer or other meshing equipment and mix evenly, and then granulate to obtain talc masterbatch; (2) pulverize the PET-based hollow fiber to 150-325 mesh with a fiber shear mill, add it to the remover and mix evenly , to obtain the fiber mixture of the removing agent; (3) adding polypropylene A, elastomer A, main antioxidant, auxiliary antioxidant A, light stabilizer, and lubricant A into the high mixer for mixing, and then adding to In the twin-screw extruder, the talc masterbatch obtained in step (1) is separately added to the twin-screw extruder, and the above-mentioned materials are all added from the main feeding port of the twin-screw extruder. Step (2) The fiber mixture of the remover...

Embodiment 3

[0053] A kind of polypropylene composite material with excellent water resistance, its raw material formula is shown in Table 2, and its preparation method includes the following steps: (1) mixing talc, elastomer B, auxiliary antioxidant B, lubricant B, polypropylene B Add it to an internal mixer or other meshing equipment and mix evenly, and then granulate to obtain talc masterbatch; (2) pulverize the PET-based hollow fiber to 150-325 mesh with a fiber shear mill, add it to the remover and mix evenly , to obtain the fiber mixture of the removing agent; (3) adding polypropylene A, elastomer A, main antioxidant, auxiliary antioxidant A, light stabilizer, and lubricant A into the high mixer for mixing, and then adding to In the twin-screw extruder, the talc masterbatch obtained in step (1) is separately added to the twin-screw extruder, and the above-mentioned materials are all added from the main feeding port of the twin-screw extruder. Step (2) The fiber mixture of the remover...

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Abstract

The invention provides a polypropylene composite material with excellent water resistance and its preparation method and application, comprising the following components by weight: 40-98 parts of polypropylene A; 1-35 parts of talcum powder masterbatch; 1-5 parts of fiber 0.1-20 parts of elastomer A; 1-5 parts of remover; 0.1-0.5 parts of main antioxidant; 0.1-1.0 parts of secondary antioxidant A; 0.1-0.5 parts of light stabilizer; lubricant A0.1 ‑1.0 parts. The polypropylene composite material of the invention has excellent water resistance, and is especially suitable for unpainted automotive exterior trims in high-temperature and high-humidity environments.

Description

technical field [0001] The invention belongs to the field of modified plastics, and particularly relates to a polypropylene composite material with excellent water resistance and a preparation method and application thereof. Background technique [0002] Polypropylene (PP) has the advantages of low density, low cost, excellent mechanical properties, good solvent resistance, and easy processing and recycling. With the rapid development of the automobile industry, the requirements for automotive materials are getting higher and higher, and the requirements for polypropylene materials are also getting higher and higher. The water resistance of acrylic materials also puts forward higher requirements. [0003] The water resistance requirements of polypropylene materials for exterior decoration are usually for polypropylene sprayed parts, and the test is carried out on the sprayed parts. In this regard, there are patents for research, such as patent CN109705467A, which uses phosp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14C08L23/12C08L23/08C08L67/02C08K3/34C08K5/3492C08K5/372C08K5/098C08K5/20C08K13/02B29C48/625
CPCC08L23/14B29C48/625C08L2205/035C08L2205/16C08L23/12C08L23/0815C08L67/02C08K3/34C08K5/34924C08K5/372C08K5/098C08K5/20C08K13/02
Inventor 张春怀李晟罗忠富陶四平王中林李欣徐昌竹
Owner TIANJIN KINGFA NEW MATERIAL
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