Mineral/long glass fiber reinforced polypropylene composite material and preparation method thereof

A long glass fiber and composite material technology, applied in polypropylene composite material and its preparation, mineral and long glass fiber reinforced polypropylene composite material and its preparation field, can solve the problem of mineral master batch and long glass fiber reinforced polypropylene master batch There are no problems such as reports, and the effects of good mechanical properties, good product forming accuracy, and good dimensional stability are achieved.

Inactive Publication Date: 2011-04-13
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent 200610033859.8, patent 200810020936.5, etc. have prepared long glass fiber reinforced polypropylene composite materials, but there is no report on the development and research of composite materials of mineral masterbatch and long glass fiber reinforced polypropylene masterbatch

Method used

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  • Mineral/long glass fiber reinforced polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This example is a mineral and long glass fiber reinforced polypropylene composite material, which consists of the following components by weight percentage: 40% long glass fiber reinforced polypropylene masterbatch, 40% mineral masterbatch, and 20% polypropylene resin.

[0023] The dosages of polypropylene and long glass fiber in the long glass fiber reinforced polypropylene masterbatch are 50wt% and 50wt% respectively.

[0024] The mineral masterbatch is composed of the following components: polypropylene 25wt%, mineral 73.4wt%, antioxidant 0.6wt%, lubricant 1wt%. The mineral is talc, the antioxidants are 1010 and 168, and the lubricant is EBS.

[0025] The preparation method of mineral and long glass fiber reinforced polypropylene composite material is carried out according to the following steps:

[0026] ⑴ Add polypropylene, compatibilizer, and antioxidant to the mixer to make it fully mixed evenly, add the obtained mixture to the twin-screw extruder, and extrude t...

Embodiment 2

[0031] This example is a mineral and long glass fiber reinforced polypropylene composite material, which consists of the following components by weight percentage: 60% long glass fiber reinforced polypropylene masterbatch, 30% mineral masterbatch, and 10% polypropylene resin.

[0032] The amounts of polypropylene and long glass fibers in the long glass fiber reinforced polypropylene masterbatch are 40wt% and 60wt%, respectively.

[0033] The mineral masterbatch is composed of the following components: polypropylene 30wt%, mineral 66wt%, antioxidant 1wt%, lubricant 3wt%. The minerals are mica and calcium carbonate, the antioxidants are 1010 and 168, and the lubricant is EBS.

[0034] The preparation method of mineral and long glass fiber reinforced polypropylene composite material is carried out according to the following steps:

[0035] ⑴ Add polypropylene, compatibilizer, and antioxidant to the mixer to make it fully mixed evenly, add the obtained mixture to the twin-screw e...

Embodiment 3

[0040] This example is a mineral and long glass fiber reinforced polypropylene composite material, which consists of the following components by weight percentage: 50% long glass fiber reinforced polypropylene masterbatch, 20% mineral masterbatch, and 30% polypropylene resin.

[0041] The amounts of polypropylene and long glass fibers in the long glass fiber reinforced polypropylene masterbatch are 60wt% and 40wt%, respectively.

[0042] The mineral masterbatch is composed of the following components: polypropylene 40wt%, mineral 59.7wt%, antioxidant 0.1wt%, lubricant 0.2wt%. The mineral is wollastonite, the antioxidants are 1010 and 168, and the lubricant is EBS.

[0043] The preparation method of mineral and long glass fiber reinforced polypropylene composite material is carried out according to the following steps:

[0044]⑴ Add polypropylene, compatibilizer, and antioxidant to the mixer to make it fully mixed evenly, add the obtained mixture to the twin-screw extruder, an...

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Abstract

The invention belongs to the field of high molecular materials and molding thereof, and relates to a mineral / long glass fiber reinforced polypropylene composite material and a preparation method thereof. The mineral / long glass fiber reinforced polypropylene composite material comprises the following components in percentage by weight: 40-60% of long glass fiber reinforced polypropylene master batch, 20-50% of mineral master batch and 0-30% of polypropylene resin. The preparation method comprises the following steps: proportionally weighing long glass fiber reinforced polypropylene master batch, mineral master batch and polypropylene resin, and mixing; and drying the mixture at 90 DEG C for 3 hours, and carrying out injection molding, wherein the conditions of the injection molding machine are as follows: the temperature of a first region is 200-220 DEG C, the temperature of a second region is 230-240 DEG C, the temperature of a third region is 240-250 DEG C, the temperature of a fourth region is 245-255 DEG C, the pressure is 60-90 MPa, and the speed is 30-50 mm / s. The product has the advantages of excellent comprehensive performance, high dimensional stability and favorable mechanical properties.

Description

technical field [0001] The invention belongs to the field of polymer materials and their molding processing, and relates to a polypropylene composite material and a preparation method thereof, in particular to a mineral and long glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Long glass fiber reinforced polypropylene material has the advantages of high strength, high rigidity, high notched impact strength, short-term heat resistance and good dynamic fatigue resistance, and is widely used in household appliances, auto parts, textile industry and other fields because of its high cost performance . However, the introduction of long glass fibers has caused other forming problems, that is, serious warpage and deformation problems will occur when injection molding products with large dimensions. With the continuous expansion of the application of long glass fiber reinforced polypropylene in the automotive fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/14C08J3/22B29B9/06B29C47/92B29C45/76B29C48/92
CPCB29B9/14B29B7/46B29B7/90B29B9/06B29C48/875B29C48/92B29C2948/92514B29C2948/9258B29C2948/92704B29C2948/92895B29C2948/92933
Inventor 李兰军吴建国郭洪涛
Owner NANJING JULONG SCI&TECH CO LTD
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