Cross-linked polyvinyl chloride (PVC) foaming material and preparation method thereof

A technology for cross-linking polyvinyl chloride and foaming materials is applied in the field of cross-linking polyvinyl chloride foaming materials and their preparation, and achieves the effects of cost reduction, uniform cell dispersion and uniform distribution.

Inactive Publication Date: 2012-02-22
FSPG HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason for the above shortcomings is that it is difficult for general methods to make PVC itself form a cross-linked structure.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] raw material parts by weight PVC resin 100 ABS 35 Heat resistance modifier X-1202 8 PVC processing aid 4 DOP 5 Epoxidized soybean oil 3 AC foaming agent 8 TMPTA 6 Organotin 4 silicone oil 2 Zinc oxide 2 calcium carbonate 5

[0031] After measuring each raw material in the above formula, after preliminary mixing in a high-speed mixer, knead in an internal mixer at 160°C for 10 minutes, granulate the kneaded material, and then extrude the plate with an extruder. The board is irradiated with an electron accelerator, the dose is 80kGy, and the irradiation speed is controlled at 10m / min; the irradiated PVC board is foamed in an oil bath, the temperature of the oil bath is set at 195°C, and the foaming time is 10 min ; After the board is foamed, it can be sent to the packaging process and cut into products of specified size. Its performance is tested according to the standard requirements,...

Embodiment 2

[0033] raw material parts by weight PVC resin 100 Chlorinated polyvinyl chloride 30 Heat resistance modifier S700N 15 PVC processing aid 6 DOP 3 Epoxidized soybean oil 3 AC foaming agent 5 TMPTMA 6 Calcium Zinc Composite Stabilizer 4 silicone oil 1 Zinc oxide 2 calcium carbonate 7

[0034] After measuring each raw material in the above formula, after preliminary mixing in a high-speed mixer, masticate for 8 minutes on a 150°C double-roller mixer, adjust the roller distance after mixing evenly, and discharge the next sheet to obtain a sheet. The sheet is irradiated with an electron accelerator, the dose is 40kGy, and the irradiation speed is controlled at 16 m / min; the irradiated PVC sheet is foamed in an oil bath, and the temperature of the oil bath is set at 200°C, and the foaming The time is 8 minutes; after the sheet material is foamed, it can be sent to the packaging process and cut into...

Embodiment 3

[0036] raw material parts by weight PVC resin 100 AS resin 60 PVC processing aid 8 DOP 1 Epoxidized soybean oil 2 AC foaming agent 6 TMPTA 7 Organotin 3 silicone oil 1 Zinc oxide 2 calcium carbonate 10

[0037] After measuring each raw material in the above formula, mix uniformly in a high-speed mixer, masticate on a 145°C twin-roll mixer for 8 minutes, adjust the roller distance after mixing uniformly, and discharge the next sheet to obtain a sheet. The sheet is irradiated with an electron accelerator, the dose is 60kGy, and the irradiation speed is controlled at 20 m / min; the irradiated PVC sheet is foamed in an oil bath, and the temperature of the oil bath is set at 200°C, and the foaming The time is 5 minutes; after the sheet material is foamed, it can be sent to the packaging process and cut into products of specified size. Its performance is tested according to the standard requirements, an...

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PUM

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Abstract

The invention discloses a cross-linked polyvinyl chloride (PVC) foaming material and a preparation method thereof. The foaming material is prepared by the following the steps of: uniformly mixing PVC, a heat-resisting modifier, a PVC processing aid, a plasticizer, a stabilizer, a foaming agent, a sensitizer, a lubricating agent and an inorganic filler in certain parts by weight, blending, granulating, and extruding into a sheet; and radiating through an electronic accelerator, and putting into an oil bath for foaming. The PVC can form a three-dimensional netlike structure under the condition of not adding any cross-linked polymer or cross-linked agent. The prepared PVC foaming material is cross-linked uniformly, foam holes are uniformly dispersed, and the cross-linked PVC foaming material has low production cost and high efficiency.

Description

Technical field [0001] The present invention involves a cross -linked polyvinyl chloride foam material and its preparation methods. Background technique [0002] In recent years, foaming core materials have been widely used in the fields of wind energy, ships, rail transits, and buildings.Use low -density foam core materials to increase the thickness of the mezzanine structure, which can greatly increase the structural stiffness under the premise of rarely increase weight to achieve the effect of weight loss and enhancement.Moreover, compared with non -metallic honeycomb core materials, foam core materials are easier to process, especially for complex alien parts, which can greatly reduce its processing costs.Therefore, now that the energy conservation and emission reduction are promoted, the foaming core material is one of the most ideal lightweight high -strength structural materials. [0003] The cross -linked polyvinyl chloride foaming material is an ideal core material for t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08J9/10C08J3/28C08J3/24
Inventor 李永鸿陈广建赵照谢映雪陈晓尚
Owner FSPG HI TECH
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