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Hollow plate and preparation process thereof

A preparation process and plate technology, which is applied in the field of hollow plates, can solve the problems of scratched products and inconvenient use, and achieve the effects of reasonable formula, improved breaking force and tearing force, and wide source of raw materials

Inactive Publication Date: 2017-07-18
珠海市希斯达包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of its wide range of use, it is generally used to replace cartons, injection molded boxes, etc., and can also be used in other applications. Due to its wide range of uses, it has a good coverage in the market. It can be produced according to customer requirements and samples. Turnover boxes with printed characters, icons, and different colors, different thicknesses, different widths and lengths, but the existing hollow boards will be scratched during use, which brings inconvenience to people's use

Method used

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  • Hollow plate and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A hollow board, including an outer layer and an inner layer, the outer layer is composed of the following raw materials in parts by weight: 18 parts of low-density polyethylene, 65 parts of polypropylene, 4 parts of metallocene, 2.5 parts of toughening agent and 1.5 parts of MMPP-0004 , the inner layer is composed of the following raw materials in parts by weight: 8 parts of calcium carbonate, 16 parts of low-density polyethylene, 38 parts of T30S type polypropylene, 17 parts of EPS 30R type polypropylene, 4 parts of toughening agent and 4 parts of MMPP-0004.

[0019] The preparation process of the hollow plate, the specific steps are as follows:

[0020] Step 1, inspect the raw materials, weigh the qualified raw materials and mix the raw materials evenly in the machine, and dry them at 60 degrees Celsius to obtain the mixed materials;

[0021] Step 2, put the mixed material into a single-screw double-set extruder and take quality control measures, put the material extr...

Embodiment 2

[0025] A hollow plate, including an outer layer and an inner layer, the outer layer is composed of the following raw materials in parts by weight: 20 parts of low-density polyethylene, 70 parts of polypropylene, 5 parts of metallocene, 3 parts of toughening agent and 2 parts of MMPP-0004 , the inner layer is composed of the following raw materials in parts by weight: 10 parts of calcium carbonate, 20 parts of low-density polyethylene, 40 parts of T30S type polypropylene, 20 parts of EPS 30R type polypropylene, 5 parts of toughening agent and 5 parts of MMPP-0004. The model of low-density polyethylene in the outer layer is DFDA 7042, the model of polypropylene in the outer layer is EPS30R, the model of low-density polyethylene in the inner layer is LDPE 2426K, and the toughening agent in the outer layer and inner layer is POE.

[0026] The preparation process of the hollow plate, the specific steps are as follows:

[0027] Step 1: Inspect raw materials and weigh qualified raw m...

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Abstract

The invention discloses a hollow plate which comprises an outer layer and an inner layer, wherein the inner layer consists of the following raw materials in parts by weight: 18-23 parts of low density polyethylene, 65-73 parts of polypropylene, 4-6 parts of metallocene, 2.5-3.8 parts of a toughening agent and 1.5-2.5 parts of MMPP-0004 (Magnesium Monoperoxyphthalate); and the inner layer consists of the following raw materials in parts by weight: 8-12 parts of calcium carbonate, 16-25 parts of low density polyethylene, 38-43 parts of T30S type polypropylene, 17-22 parts of EPS 30R type polypropylene, 4-7 parts of a toughening agent and 4-8 parts of MMPP-0004. The invention further discloses a preparation process of the hollow plate. The hollow plate is reasonable in formula, wide in raw material source and applicable to large-scale industrial production; and an automatic blending machine is adopted to specifically combine a plurality of different raw materials, a single-screw double-sleeve extruder is adopted, a molding process technique is improved, and secondary shaping and secondary molding are added after first traction, so that the pulling strength and the tearing strength of the hollow plate are improved, and the use values and the applicable range of a product are increased.

Description

technical field [0001] The invention relates to a packaging material, in particular to a hollow board. Background technique [0002] The hollow board is mainly made of polypropylene raw materials. The raw materials, filling masterbatch and color masterbatch are put into the mixer for mixing, and then the mixture is sent to the extruder through the screw feeder. The temperature control of the screw of the extruder is divided into 6- 7 sections, the temperature setting from the screw feeding area to the screen changer connection area is from low to high, set to 165-210°C, the allowable deviation is ±5°C; the molten material enters the mold through the screen changer, and the mold is divided into 9 temperature controls Zone, the temperature setting interval is 195±15°C, the molten material enters the shaper after leaving the mold, the temperature of the shaper table is 15-25°C, and the hollow plate is formed by the shaper; the formed hollow plate passes through the front and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08K3/26B32B27/32B32B27/08B32B27/18B32B37/06B32B37/08B32B38/16B32B38/04B29B13/06B29C47/00B29L7/00B29L22/00
CPCC08L23/12B29B13/065B29C48/0022B29C48/07B29L2007/002B29L2022/00B32B27/08B32B27/18B32B27/32B32B37/06B32B37/08B32B38/04B32B38/164B32B2038/045B32B2250/24B32B2307/54B32B2307/5825C08L2205/025C08L2205/03C08L2207/066C08L23/06C08K2003/265
Inventor 李辉
Owner 珠海市希斯达包装材料有限公司