Corrugated hollow plate and manufacturing method thereof

A production method and hollow technology, applied in the direction of sheets/boards, flat products, other household appliances, etc., can solve the problems that cannot be popularized, the mechanical properties are not strong enough, and the cost is high, so as to reduce the mold cost, low price, and molding cycle short effect

Active Publication Date: 2014-01-15
LIAONING LIAOJIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hollow board has a certain ability to resist ultraviolet rays, but the mechanical properties are not strong enough
[0004] Continuous fiber thermoplastic reinforced sheets are widely used because of their good mechanical properties, but due to their high cost, they cannot be widely promoted

Method used

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  • Corrugated hollow plate and manufacturing method thereof
  • Corrugated hollow plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Continuous Glass Fiber Reinforced Polypropylene Hollow Panel

[0033] In this example, continuous glass fiber reinforced polypropylene is selected as the raw material, and the specification of the corrugated hollow board is 2400mm*1500mm*50mm, and the prepreg is cut according to the specification. Lay in the way of 0° / 90°, the thickness of the prepreg laid is 15mm, place the inflatable fluorinated phosphorus nitrile rubber mandrel treated with the release agent on the prepreg, and inflate the mandrel, The inflation pressure is 0.05MPa, and then fixed. In order to prevent the mandrel from slipping during fixing, relative fixing fixtures can be made according to the hole distance. After fixing, the 15mm prepreg is laid at 0° / 90°. The mold is then placed and moved into a heat press.

[0034] There are two upper and lower templates of the laminator, and the heating temperature of the two templates is: 190°C, and the molds are closed without pressure for preheating. After ...

Embodiment 2

[0036] Continuous glass fiber reinforced polyamide corrugated sheet

[0037] In this example, continuous glass fiber-reinforced polyamide is selected as the raw material, and the specification of the corrugated board is 2600mm*1500mm*70mm, and the prepreg is cut according to the specification. Lay in the way of 0° / 90°, the thickness of the prepreg laid is 20mm, place the inflatable perfluoroether rubber mandrel treated with the release agent on the prepreg, inflate the mandrel, inflate The pressure is 0.05Mpa, and then fixed. In order to prevent the mandrel from slipping during fixing, you can make relative fixing fixtures according to the hole distance and fix them. Finally, lay 20mm prepreg in the way of 0° / 90°, and then place the mold , into a heat press.

[0038] There are two upper and lower templates of the laminator, and the heating temperature of the two templates is: 230°C, and the molds are closed without pressure for preheating. After preheating for 5-10 minutes, ...

Embodiment 3

[0040] A method for manufacturing a corrugated hollow plate, comprising the following steps:

[0041] (1) After the continuous basalt fiber is stretched by mechanical rolling, it is extruded through the staggered openable double extrusion die set to add polyethylene resin with anti-ultraviolet absorber and flame retardant, and the fiber bundle is infiltrated and compounded The continuous fibers impregnated with thermoplastic resin are obtained, and then roll-formed, and the tape-shaped prepreg is made by winding and curling the roll;

[0042] (2) Cut the strip-shaped prepreg according to the process requirements, and lay it at 0° / 90° according to the direction of the continuous fibers in the prepreg;

[0043] (3) Put an inflatable mandrel sprayed with a solvent-based silicon-based release agent in the middle layer of the laid prepreg, and inflate and fix the mandrel. The inflatable mandrel used is perfluoroalkyl Triazine rubber mandrel, the inner membrane material of the infl...

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Abstract

The invention relates to a corrugated hollow plate and a manufacturing method thereof. The corrugated hollow plate is manufactured by cutting prepreg prepared by continuous fiber enhanced thermoplastic resin, laying the prepreg in a forming machine, locking a die after placing an inflation core, thermally forming, finally maintaining pressure and cooling. Compared with the prior art, the corrugated hollow plate has advantages of low cost, not high technology requirement, greening, environmental protection, high intensity, high modulus, good corrosion resistance, good water tolerance, inertia to a plurality of acids and alkalis, non-conduction, high dielectric strength, simple processing, easy cleaning, no need of special storage condition and long storage life, can be 100% recovered, and belongs to a green product technology.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a corrugated hollow board made of continuous fiber reinforced resin prepreg and a forming method thereof. Background technique [0002] At present, hollow board, as an environmentally friendly plastic board, is widely used in related fields such as construction industry, advertising industry, agriculture, indoor breeding industry and packaging industry. At present, most hollow boards are made of PP, PC, PE, PVC, ABS and other related plastics as raw materials, and are processed through a one-time extrusion process. It includes a panel, a frame and equidistant plates connected between the two, and has the characteristics of light weight, beautiful appearance, non-toxicity, anti-corrosion and flame retardancy, and has a certain effect of heat preservation and heat insulation. However, the hollow boards in the prior art have a single shape. Although the overal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/42B29B11/06F16S1/00B29L7/00
CPCB29B11/06B29C70/42B29L2007/002F16S1/00
Inventor 韩雪
Owner LIAONING LIAOJIE SCI & TECH
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