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Foamed polyolefin composite material and preparation method thereof

A technology for foaming polyolefin and composite materials, applied in the field of polymer composite materials, can solve the problems of inability to do valuable recycling, not environmental protection, etc., and achieve the effects of high rigidity, improved melt viscosity, and wide application fields.

Pending Publication Date: 2022-05-13
淄博市临淄六顺新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The composite material mentioned in the patent is silane cross-linked foam, and the cross-linked material is a thermosetting material, which cannot be recycled and is not environmentally friendly.

Method used

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  • Foamed polyolefin composite material and preparation method thereof
  • Foamed polyolefin composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1-4

[0062] The compositions of the foamed polyolefin composite materials in Examples 1-4 are shown in Table 1.

[0063] According to the mass proportion composition of embodiment 1, embodiment 2, embodiment 3 and embodiment 4 in table 1, prepare foamed polyolefin composite material according to the following steps:

[0064] (1) Prepare A powder

[0065] Weigh the various raw materials in the A powder formula composition according to the proportion and add them to the internal mixer for mixing. The mixing temperature is controlled at 130-160 ° C, and the mixing time is controlled at 10 minutes. The mixed material is extruded through a twin-screw extruder, the speed of the extruder is 100-800rpm, the processing temperature of the extruder is set at 135°C-165°C, the water-stretched pellets are granulated, and then ground into 30 Mesh micropowder, obtain A powder;

[0066] (2) Prepare B powder

[0067] Weigh the various raw materials in the B powder formula according to the ratio a...

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Abstract

The invention belongs to the technical field of polymer composite materials, and particularly relates to a foamed polyolefin composite material and a preparation method thereof. Comprising powder A and powder B. During foaming, the powder A and the powder B are mixed according to the mass ratio of 1: 1, and the powder A is prepared from, by mass, 60-95 parts of polyethylene resin, 5-40 parts of polypropylene resin, 5-20 parts of epoxy resin, 2-10 parts of a foaming agent, 1-20 parts of an inorganic reinforcing agent, 0.5-3 parts of a lubricating agent, 0.5-3 parts of a dispersing agent, 0.5-3 parts of a coupling agent and 0.1-0.5 part of an antioxidant; the powder material B comprises the following components in parts by mass: 100 parts of polyethylene resin, 2-10 parts of a curing agent and 0.1-0.5 part of an antioxidant; the invention also provides a preparation method thereof. The composite material disclosed by the invention can adapt to die pressure-free forming foaming of products in various shapes, and is high in foaming ratio, good in foam rigidity and relatively good in rigidity.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a foamed polyolefin composite material and a preparation method thereof. Background technique [0002] With the development of the national economy, high-sensitivity, high-precision electronic equipment, optical equipment, instruments and meters, etc. require good quality and performance packaging. In recent years, EPS and pearl cotton EPE have made great progress in meeting this requirement. progress. However, pearl cotton is soft and EPS is brittle, so it is difficult to meet the requirements of some high-end packaging fields, such as high strength, good thermal insulation and sound insulation, good cushioning and shock absorption, low thermal conductivity, and complex mold molding. [0003] Chinese patent CN102558647A discloses a method for preparing high-performance foamed polyethylene products. The foamed polyethylene is physical foaming. It...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L23/12C08L63/02C08J9/10
CPCC08J9/103C08J9/0061C08J9/107C08J9/105C08J2203/04C08J2323/08C08J2423/06C08J2423/12C08J2463/02
Inventor 陈唐建汪根林翟志强
Owner 淄博市临淄六顺新材料有限公司
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