Polyvinyl chloride free-foaming sheet material

A foamed sheet and polyvinyl chloride technology, which is applied in the field of foamed sheets, can solve the problems of resilience, aging resistance, poor performance at high and low temperatures, and achieve improved resilience and tensile strength, simple components, Increase the effect of the applicable field

Inactive Publication Date: 2018-01-19
江阴汉姆应用界面有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned materials in the prior art have poor resilience, aging resistance and high and low temperature performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The polyvinyl chloride free foam sheet raw material composition of Example 1 includes in parts by weight: 40 parts of polyvinyl chloride resin powder, 20 parts of inorganic filler, 13 parts of processing modifier, 0.05 part of foaming agent, toughening agent 15 parts; wherein, the toughening agent is toughening rubber powder. The lubricant is stearic acid.

[0017] The inorganic filler is sepiolite powder. The blowing agent is azodicarbonamide.

[0018] The rubber powder is nano ethylene propylene rubber powder.

[0019] The processing modifier is an ACR processing modifier.

Embodiment 2

[0021] The difference between embodiment 2 and embodiment 1 is that the polyvinyl chloride free foam sheet raw material composition of embodiment 2 includes by weight: 95 parts of polyvinyl chloride resin powder, 5 parts of inorganic filler, 6 parts of lubricant, 1 part of processing modifier, 2.5 parts of foaming agent, and 3 parts of toughening agent; wherein, the toughening agent is toughening rubber powder.

[0022] The lubricant is made by mixing paraffin wax and polyethylene wax in equal weight of 1:1.

[0023] The foaming agent is a blend of azodicarbonamide and zinc oxide, and the weight percentage of zinc oxide in the blend is 30%.

[0024] The rubber powder is formed by mixing nanometer ethylene propylene rubber powder and organic silicon rubber powder, and the weight percentage of the organic silicon rubber powder in the rubber powder is 15%.

[0025] The inorganic filler is a mixture of sepiolite powder and diatomite, and the percentage by weight of the sepiolite ...

Embodiment 3

[0027] The difference between embodiment 3 and embodiment 1 is that the raw material composition of polyvinyl chloride free foam sheet includes: 62 parts of polyvinyl chloride resin powder, 12 parts of inorganic filler, 3 parts of lubricant, processing modifier 7 parts, 1.25 parts of foaming agent, and 9 parts of toughening agent; wherein, the toughening agent is toughening rubber powder.

[0028] The lubricant is oxidized polyethylene wax.

[0029] The foaming agent is a blend of azodicarbonamide and zinc oxide, and the weight percentage of zinc oxide in the blend is 60%.

[0030] The rubber powder is formed by mixing nanometer ethylene propylene rubber powder and silicone rubber powder, and the weight percentage of the silicone rubber powder in the rubber powder is 65%.

[0031] The inorganic filler is a mixture of sepiolite powder and diatomite, and the percentage by weight of the sepiolite powder in the inorganic filler is 53%.

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PUM

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Abstract

The invention discloses a polyvinyl chloride free-foaming sheet material. The sheet material comprises the following raw materials in parts by weight: 40-95 parts of polyvinyl chloride resin powder, 5-20 parts of an inorganic filler, 0-6 parts of a lubricant, 1-13 parts of a processing modifier, 0.05-2.5 parts of a foaming agent and 3-15 parts of a toughening agent, wherein, the toughening agent is toughened rubber powder. The polyvinyl chloride free-foaming sheet material disclosed by the invention has simple components, and the resilience and the tensile strength of the products are improvedwith the addition of the rubber powder for modification, so that the high and low temperature application ranges of the sheet material are expanded, and the increase of the application field of the sheet material is facilitated.

Description

technical field [0001] The invention relates to the technical field of foam sheets, in particular to a polyvinyl chloride free foam sheet. Background technique [0002] Polyvinyl chloride free foam sheet is a new type of new material developed in recent years that "replaces wood with plastic and steel with plastic". Hard polyvinyl chloride sheet is widely used in advertising consumables and home decoration. , Decorative veneers, and photo album backplanes and other industries, as well as many fields where the surface of the sheet is required to be flat and smooth, while soft foam sheets are mostly used in home tourism, packaging and transportation, clothing decoration and other fields. Demand The larger ones are car seats, shoe soles and sealing materials. Compared with the crust foaming method and the co-extrusion foaming method, the free foaming method sheet has a relatively lower density, and is easier to make a thin plate, and has a wider range of applications. The abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/16C08L83/04C08K3/34C08K3/30C08K5/09C08J9/10
Inventor 黄平
Owner 江阴汉姆应用界面有限公司
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