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Thermoplastic fiber enhanced plastic plate and manufacturing method thereof

A thermoplastic fiber and reinforced plastic technology, applied in the field of plastic plate manufacturing, can solve problems such as strength, thermal stability, weather resistance defects, limited amount of fiber added, and limited application range, etc., to improve strength and thermal stability, Wide range of applications and great environmental benefits

Inactive Publication Date: 2008-01-09
蒋姝华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Various plastic sheets are often used in various industrial and civil devices. The current thermoplastic sheets are pure plastic sheets that are extruded by an extruder after various plastics are melted. The board has certain defects in strength, thermal stability, weather resistance, etc., and its application range is limited.
In some production practices, although fiber has been successfully added to plastic, it is limited by the high technology of plastic extrusion equipment, and the amount of fiber added is limited, which makes this type of product subject to certain restrictions in actual production. Performance improvements are limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: On conventional non-woven fabric production equipment, 40-50% by weight of polypropylene fiber and 50-60% by weight of hemp fiber are uniformly mixed, sorted and formed, and needled into a fiber mat. After cutting, the mass per unit area is 1500g / m 2 Put it into a hot press at 170-180°C, control the gap between the platens to 4mm, and press it in 6-8 minutes to make a density of 0.4g / cm 3 Left and right low density thermoplastic fiber plastic boards. This kind of board, after actual testing, has a tensile strength of ≥15Mpa, a breaking elongation of ≥40%, and a bending strength of ≥18Mpa. It can be widely used in automotive interior roof linings and home interior decorative wall skirts. Good heat and sound insulation.

Embodiment 2

[0008] Embodiment 2: On conventional non-woven fabric production equipment, 60-70% by weight of waste polypropylene fiber and 30-40% by weight of hemp fiber are uniformly mixed, sorted and formed, and needled into a fiber mat. After cutting and stacking, the mass per unit area is 2200-2500g / m 2 , into the hot press, control the platen gap to 2.2-2.5mm, hot press at 170-180°C for 9-10 minutes, and the density is 1g / cm 3 Left and right high-density thermoplastic reinforcement panels. The tensile strength of this kind of board is ≥ 25Mpa, and the bending strength is ≥ 35Mpa. It can be widely used in fields with high strength requirements, such as the inner guard plate of the car lamp, the elevated plate, and the lining plate of the column.

Embodiment 3

[0009] Embodiment three: on the conventional non-woven fabric production equipment, the blended fabric opening fibers of 50% waste polyester and cotton with 35% polyester fiber and 15% glass fiber are uniformly mixed and sorted out. Forming, needle-punched into fiber felt, and then cut and stacked into a unit area mass of 2000g / m 2 , into the hot press, control the platen gap to 2mm, hot press at 250-260°C for 8-9 minutes, and the density is 1g / cm 3 Left and right high-strength fiber-reinforced polyester panels. This kind of board has a tensile strength ≥ 25Mpa, a bending strength ≥ 40Mpa, a thermal stability above 200°C, and good insulation. It can be widely used in parts that have certain requirements for insulation and temperature and high strength requirements, such as automobiles, Lamp housings for motorcycles, etc.

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Abstract

A thermoplastic fiber reinforced plastic board and its production is disclosed. It consists of insoluble fiber 15-60 wt% and plastic fiber 40-85 wt%. The process is carried out by mixing insoluble fiber with plastic fiber by non-woven producer, finish forming, acupuncturing to obtain fiber felt, cutting into blocks in size, coinciding, delivering it into hot press, hot pressing and forming to obtain final product.

Description

technical field [0001] The invention relates to a manufacturing technology of a plastic plate, in particular to a thermoplastic fiber reinforced plastic plate and a manufacturing method thereof. Background technique [0002] All kinds of plastic sheets are often used in various industrial and civil devices. The current thermoplastic sheets are pure plastic sheets that are extruded by an extruder after various plastics are melted. The board has certain defects in strength, thermal stability, weather resistance, etc., and its application range is limited to a certain extent. In some production practices, although fiber has been successfully added to plastic, it is limited by the high technology of plastic extrusion equipment, and the amount of fiber added is limited, which makes this type of product subject to certain restrictions in actual production. Performance improvements are limited. Contents of the invention [0003] The technical problem to be solved by the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/06B29C43/22B29C43/58B29C70/28
Inventor 蒋姝华朱浩
Owner 蒋姝华
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