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Polyvinyl alcohol foaming material and manufacture method thereof

A polyvinyl alcohol powder, polyvinyl alcohol technology, applied in the field of polyvinyl alcohol foaming materials and their manufacturing, can solve the problems of environmental damage, poor degradability and the like

Inactive Publication Date: 2012-01-04
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Foamed polymer materials have been widely used in recent years, but the foamed materials currently on the market are poorly degradable and cause damage to the environment. Therefore, it is very difficult to produce a degradable foamed material to replace traditional polyolefin foamed materials. Needed

Method used

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  • Polyvinyl alcohol foaming material and manufacture method thereof
  • Polyvinyl alcohol foaming material and manufacture method thereof
  • Polyvinyl alcohol foaming material and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The present embodiment prepares the foamed material by the chemical foaming method according to the manufacturing method of the present invention

[0053] Raw materials used in this embodiment:

[0054] Polyvinyl alcohol powder (Japan Kuraray, PVA217) 100kg;

[0055] Caprolactam (plasticizer) 10kg;

[0056] Ethylene glycol (plasticizer) 15kg

[0057] Talc powder (nucleating agent) 0.5kg;

[0058] Silica (crosslinking agent) 3kg;

[0059] Octyltin T890 (heat stabilizer, Guangzhou Denghua Chemical Co., Ltd.) 0.5kg;

[0060] DSTP (phosphite antioxidant, Beijing Chemical Additive Research Institute) 0.2Kg

[0061] Azodicarbonamide (chemical blowing agent, Henan Jintai Chemical Industry) 0.5kg;

[0062] Magnesium hydroxide (acid absorbent) 0.2kg.

[0063] Prepare foam material with above-mentioned raw material:

[0064] (1) Blend polyvinyl alcohol powder with caprolactam, ethylene glycol, antioxidant 1098 and DSTP in a high-speed mixer, keep the temperature below 100...

Embodiment 2

[0074] Present embodiment prepares foamed material with physical foaming method according to manufacturing method of the present invention

[0075] Raw materials used in this embodiment:

[0076] Polyvinyl alcohol powder (Japan Kuraray, PVA117) 100kg;

[0077] Pentaerythritol (plasticizer) 15kg;

[0078] Trimethylolpropane (plasticizer) 8kg;

[0079] Calcium carbonate (nucleating agent, Qingdao Boxin Chemical Co., Ltd. 2000 mesh) 0.15kg;

[0080] Nanoclay (nucleating agent) 0.22kg;

[0081] Calcium stearate (lubricant) 0.3kg;

[0082] Hindered phenolic antioxidant 1076 (Beijing Additives Research Institute) 0.10kg

[0083] Phosphite heat stabilizer (Beijing Auxiliary Research Institute) 0.3kg;

[0084] (1) Blend polyvinyl alcohol powder with pentaerythritol, heat stabilizer and trimethylolpropane in a high-speed mixer, keep the blending temperature below 49°C, and blend for 50 minutes. When the mixture is discharged in powder form;

[0085] (2) The blend obtained in st...

Embodiment 3

[0096] The present embodiment prepares the foamed material by the chemical foaming method according to the manufacturing method of the present invention

[0097] Raw materials used in this embodiment:

[0098] Polyvinyl alcohol powder (Kuraray, Japan, PVA2088) 100kg;

[0099] Glycerol (plasticizer) 5kg;

[0100] Pentylene glycol (plasticizer) 5kg

[0101] Polyethylene glycol 400 (nucleating agent, Sinopharm Chemical Reagent Co., Ltd.) 0.5kg;

[0102] Mica (nucleating agent) 0.22kg;

[0103] Zinc stearate (lubricant) 0.3kg;

[0104] AO31 (Beijing Auxiliary Research Institute) 0.1Kg;

[0105] AO-5 (Beijing Auxiliary Research Institute) 0.2Kg;

[0106] Phosphite heat stabilizer (Beijing Auxiliary Research Institute) 0.4kg;

[0107] Sodium bicarbonate (acid absorbent) 2kg;

[0108] Azobisisobutyronitrile (chemical blowing agent) 0.3kg.

[0109] (1) In a high-speed mixer, polyvinyl alcohol powder is mixed with glycerol, pentanediol, heat stabilizer, crosslinking agent, nuc...

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Abstract

The invention provides a polyvinyl alcohol foaming material and a manufacture method thereof. The polyvinyl alcohol foaming material comprises the composition comprising the following components: 48-95 parts by weight of polyvinyl alcohol powder (preferably 67-95 parts by weight), 5-40 parts by weight of plasticizing agent (preferably 5-25 parts by weight), 0.05-5 parts by weight of nucleating agent (preferably 0.1-3 parts by weight), 0.1-2 parts by weight of heat stabilizer (preferably 0.2-0.8 part by weight), 0.02-5 parts by weight of cross linking agent (preferably 0.02-4 parts by weight) and the balance of chemical foaming agent or physical foaming agent. The manufacture method disclosed by the invention can be a chemical foaming method or a physical foaming method. The chemical foaming method has simple technology, does not have rigorous requirements on equipment and only needs a common single screw extruder used for foaming. The physical foaming method disclosed by the invention can use same foaming equipment, does not pollute environment and is a foaming method which is highly prized at present.

Description

technical field [0001] The invention relates to a polyvinyl alcohol foam material and a manufacturing method thereof. Background technique [0002] Foamed polymer materials have been widely used in recent years, but the foamed materials currently on the market are poorly degradable and cause damage to the environment. Therefore, it is very difficult to produce a degradable foamed material to replace traditional polyolefin foamed materials. Needed. [0003] Polyvinyl alcohol (PVA) is an environmentally friendly material. It contains a large number of hydroxyl groups in its molecular chain. It has the characteristics of hydrolytic degradation and biodegradation. It is not easy to burn, and the combustion products are water and carbon dioxide, so it does not pollute the environment. Polyvinyl alcohol products have good resistance to organic solvents, barrier properties and mechanical properties. Therefore, replacing common polyolefin foam materials with polyvinyl alcohol is o...

Claims

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Application Information

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IPC IPC(8): C08L29/04C08J9/06C08J9/12C08J9/10C08J9/08C08J9/14B29C47/92B29C48/92
CPCB29C48/397
Inventor 项爱民吴文倩
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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