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PVC low-foamed board and manufacturing method thereof

A low-foaming and board technology, applied in the field of building decoration materials, can solve the problems of complex production process, high cost and unstable mechanical properties of PVC foam board, achieve good economic benefits, enhance mechanical strength, and reduce production costs. Effect

Inactive Publication Date: 2017-01-04
LIAOCHENG JINXIN BUILDING ENERGY SAVING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned problems such as complex production process, high cost and unstable mechanical properties of PVC foamed boards, the present invention proposes a low-fat PVC foam board that can greatly improve the mechanical properties of the boards, reduce production costs, expand application fields, and further improve production efficiency. Foam board and its preparation method

Method used

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  • PVC low-foamed board and manufacturing method thereof
  • PVC low-foamed board and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] According to the weight ratio, select 100 parts of S-700 PVC resin, 80 parts of active light calcium, 5 parts of composite lead salt stabilizer, 1.2 parts of stearic acid, 0.6 parts of oxidized polyethylene wax, and external lubricant. 0.46 parts of polyethylene wax, 0.64 parts of foaming agent AC, NaHCO 3 2.2 parts, 8 parts of ACM-01 impact modifier, 21 parts of acrylic foaming regulator, 120 parts of regrind. Add all the above-mentioned materials into a high-speed mixer, heat to 90-120°C, keep the temperature for 15 minutes, and stir evenly at high speed. After cold mixing to 25-45℃, the materials are discharged into the silo and extruded by the twin-screw extruder. The materials are foamed through the improved mold and formed together with the grid cloth laid flat in the center of the mold to form the upper and lower layers It is a PVC foam layer, and the core layer is a three-layer reinforced structure of grid cloth. After vacuum setting, cooling forming, traction an...

Embodiment 2

[0031] According to the weight ratio, select 100 parts of S-700 PVC resin, 60 parts of active light calcium, 5 parts of calcium zinc stabilizer, 1.0 part of calcium stearate, 0.5 part of oxidized polyethylene wax as internal lubricant, and 0.5 part of external lubricant. 0.55 parts of polyethylene wax, 0.60 parts of foaming agent AC, NaHCO 3 It is 2.3 parts, 9 parts of ACM-01 impact modifier, 20 parts of acrylic foaming modifier, 100 parts of regrind. Add all the above-mentioned materials into a high-speed mixer, heat to 90-120°C, keep the temperature for 15 minutes, and stir evenly at high speed. After cold mixing to 25-45℃, the materials are discharged into the silo and extruded by the twin-screw extruder. The materials are foamed through the improved mold and formed together with the grid cloth laid flat in the center of the mold to form the upper and lower layers It is a PVC foam layer, and the core layer is a three-layer reinforced structure of grid cloth. After vacuum set...

Embodiment 3

[0035] According to the weight ratio, select 100 parts of S-700 PVC resin, 10 parts of active light calcium, 4 parts of organic tin stabilizer, 0.5 parts of stearic acid for internal lubricant, 0.6 parts of oxidized polyethylene wax, and paraffin wax for external lubricant 0.8 part, 0.4 part of polyethylene wax, 0.5 part of AC as blowing agent, NaHCO 3 2.4 parts, 12 parts of ACM-01 impact modifier, 18 parts of acrylic foaming modifier, 80 parts of regrind. Add all the above-mentioned materials into a high-speed mixer, heat to 90-120°C, keep the temperature for 15 minutes, and stir evenly at high speed. After cold mixing to 25-45℃, the materials are discharged into the silo and extruded by the twin-screw extruder. The materials are foamed through the improved mold and formed together with the grid cloth laid flat in the center of the mold to form the upper and lower layers It is a PVC foam layer, and the core layer is a three-layer reinforced structure of grid cloth. After vacuu...

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Abstract

The invention belongs to the field of building decoration materials, and relates to a PVC low-foamed board and a manufacturing method thereof. The PVC low-foamed board comprises an upper PVC foamed layer and a lower PVC foamed layer, a core layer is arranged between the upper PVC foamed layer and the lower PVC foamed layer, is a three-layer reinforcing structure of the PVC low-foamed board and is a gridding cloth. By additionally arranging the gridding cloth between the upper PVC foamed layer and the lower PVC foamed layer, the mechanical strength of the PVC low-foamed board is enhanced, and meanwhile the product achieves the more excellent mechanical properties, is not prone to deform and has a good economic benefit and a wide market prospect. Meanwhile, the preparation method has the advantages that other modification auxiliaries do not need to be introduced in the production process, no auxiliary equipment needs to be additionally arranged, the processes are simple, and the production cost is significantly reduced while the quality is guaranteed.

Description

Technical field [0001] The invention relates to the field of building decoration materials, and relates to a PVC low-foaming board and a preparation method thereof. Background technique [0002] Rigid PVC low-foam board has a wide range of applications in the fields of decoration materials, building materials, outdoor materials and corrosion-resistant materials due to its excellent properties such as light weight, anti-corrosion, chemical resistance, and good thermal insulation. It has been rapidly developed in recent years. , Is a good material to replace wood with plastic. The development of low-foaming products is of great significance for saving raw materials and reducing costs. It has market competitiveness and broad prospects that similar solid core products cannot match. At present, the production process of rigid PVC low-foaming board mainly includes two foaming methods: co-extrusion foaming and skinning foaming. The co-extrusion foaming process requires an additional e...

Claims

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Application Information

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IPC IPC(8): B29C44/24B29C44/32B29C47/06B29C47/02C08L27/06C08L23/30C08L23/06C08K13/02C08K5/09C08K3/26B29L7/00
CPCB29C44/24B29C44/32B29C48/154B29C48/18B29L2007/002C08J9/04C08J2327/06C08L27/06C08L2203/14C08L2205/035C08L23/30C08L23/06C08K13/02C08K5/09C08K3/26
Inventor 李海泉刘修敏杨胜金赵笛孙建忠于建国李文鹏
Owner LIAOCHENG JINXIN BUILDING ENERGY SAVING CO LTD