PVC (Polyvinyl Chloride) co-extruded sheet and production method thereof

A PVC resin and sheet technology, used in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems of inability to meet outdoor application requirements, easy crease fracture, poor weather resistance, etc. The effect of promotion value, strong nail holding force and good load resistance

Active Publication Date: 2019-06-21
北京百草居生物科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the embodiment of the present invention provides a PVC co-extruded sheet and its manufacturing method to solve the problems of existing PVC foam materials such as low strength, insufficient toughness, easy crease breakage, and poor weather resistance, so it is not yet possible to Problems meeting the needs of outdoor implementation applications

Method used

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  • PVC (Polyvinyl Chloride) co-extruded sheet and production method thereof
  • PVC (Polyvinyl Chloride) co-extruded sheet and production method thereof
  • PVC (Polyvinyl Chloride) co-extruded sheet and production method thereof

Examples

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Embodiment 1

[0056] The preparation method of the PVC co-extrusion plate of the present embodiment comprises the following steps:

[0057] (1) Making PVC surface material

[0058] Mix 38 parts of PVC resin, 12 parts of CPVC powder, 1.5 parts of PBO fiber, 1.5 parts of stabilizer, 2 parts of flame retardant, and 15 parts of heavy calcium carbonate powder, heat to 180°C, add 3 parts of toner, and continue stirring 10min, slowly cool to 35°C, pour into a sieve with a sieving particle size of 180μm, remove the material on the sieve, and obtain the PVC surface layer screening material;

[0059] (2) Making PVC foam filling layer materials

[0060] 1) Mix 110 parts of PVC resin, 30 parts of CPVC powder, 7 parts of PBO fiber, 3.8 parts of stabilizer, 5.7 parts of flame retardant, and 42 parts of heavy calcium carbonate powder, stir and heat until the temperature rises to 75 °C, Add 8 parts of impact modifier, continue stirring and heating, when the temperature rises to 105°C, set the speed of th...

Embodiment 2

[0072] The preparation method of the PVC co-extrusion plate of the present embodiment comprises the following steps:

[0073] (1) Making PVC surface material

[0074] Mix 35 parts of PVC resin, 9 parts of CPVC powder, 1 part of PBO fiber, 2 parts of stabilizer, 3 parts of flame retardant, and 13 parts of heavy calcium carbonate powder, heat to 185°C, add 3.5 parts of toner, and continue stirring 8min, slowly cool to 45°C, pour into a sieve with a particle size of 160μm, remove the material on the sieve, and obtain the screened material of the PVC surface layer;

[0075] (2) Making PVC foam filling layer materials

[0076] 1) Mix 108 parts of PVC resin, 35 parts of CPVC powder, 7.5 parts of PBO fiber, 4 parts of stabilizer, 5.5 parts of flame retardant, and 50 parts of heavy calcium carbonate powder, stir and heat until the temperature rises to 80 °C, Add 6 parts of impact modifier, continue stirring and heating, when the temperature rises to 110°C, set the speed of the mixer...

Embodiment 3

[0088] The preparation method of the PVC co-extrusion plate of the present embodiment comprises the following steps:

[0089] (1) Making PVC surface material

[0090] Mix 35 parts of PVC resin, 10 parts of CPVC powder, 2 parts of PBO fiber, 1.4 parts of stabilizer, 2.4 parts of flame retardant, and 13.5 parts of heavy calcium carbonate powder, heat to 190°C, add 4 parts of toner, and continue stirring 8min, slowly cool to 40°C, pour into a sieve with a sieving particle size of 160μm, remove the material on the sieve, and obtain the screened material of the PVC surface layer;

[0091] (2) Making PVC foam filling layer materials

[0092] 1) Mix 105 parts of PVC resin, 36 parts of CPVC powder, 6.5 parts of PBO fiber, 3.2 parts of stabilizer, 6 parts of flame retardant, and 48 parts of heavy calcium carbonate powder, stir and heat until the temperature rises to 80 °C, Add 6.5 parts of impact modifier, continue stirring and heating, when the temperature rises to 110°C, set the sp...

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Abstract

The invention embodiment discloses a PVC (Polyvinyl Chloride) co-extruded sheet and a production method thereof, and belongs to the technical field of composite materials. The PVC co-extruded sheet comprises a PVC surface layer and a PVC foamed filling layer, wherein the PVC surface layer is prepared from PVC resin, CPVC powder, PBO fibers, a stabilizer, a fire retardant and ground calcium carbonate powder; the PVC foamed filling layer is prepared from the PVC resin, the CPVC powder, the PBO fibers, the stabilizer, the fire retardant, the ground calcium carbonate powder, an impact modifier, talcum powder, an internal lubricant, oxidized polyethlene wax, magnesium oxide, a silane coupling agent, a foam regulator, an ultraviolet light absorber, an antioxidant and an antistatic agent. The PVCco-extruded sheet in the embodiment of the invention has good mechanical property, weather resistance and good promotion value, so that the limitations of an existing PVC foaming material used outdoors are overcome, the cost of outdoor landscape engineering is greatly reduced and further the use field of products is widened.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of composite materials, in particular to a PVC co-extruded sheet and a manufacturing method thereof. Background technique [0002] Boards are widely used in the construction and decoration industry, and are often called building boards, wood boards, furniture boards, engineering boards, wood boards, etc. According to the classification of materials, the boards can be divided into two categories: solid wood boards and wood-based boards. In the past, wooden boards were used in large quantities. With the reduction of forest resources and the enhancement of environmental protection awareness, replacing wood with plastic has become the development direction of boards in our country. [0003] PVC foaming material is made of polyvinyl chloride (PVC) as the main raw material, combined with foaming agent and other additives, and is made by plasticizing and compressing with an extruder. PVC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/06B32B27/18B32B27/20C08L27/06C08L27/24C08L79/04C08L33/12C08L23/30C08K13/02C08K3/26C08K5/098C08K3/34C08K3/22C08J9/00
Inventor 颜冬冬
Owner 北京百草居生物科技集团有限公司
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