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PVC foamed functional master batch and preparation method thereof

A functional masterbatch and PVC resin technology, applied in the field of functional masterbatch granulation, can solve the problems of poor long-term stability of heat stabilizers, expensive production of organotin, and harm to human health, etc., to achieve uniform foaming and simplify the production process , good compatibility effect

Inactive Publication Date: 2021-10-01
快思瑞科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stabilizer used in the patent CN104262860B is organotin, which is expensive and not suitable for production, and tin is a toxic metal
In the patent CN110128761A, calcium zinc stearate is used as heat stabilizer, but calcium zinc stearate heat stabilizer has the defect of poor long-term stability
Patents CN103289243B, CN103589089B, etc. use DOP as a plasticizer, and DOP is a carcinogen, which is easy to migrate to the surface of the product and endanger human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Non-toxic and environmentally friendly PVC foaming functional masterbatch, including the following components in parts by mass: by weight, 100 parts of SG-7PVC resin, foaming agent compound: 0.8 parts of thermal expansion microspheres, 1.2 parts of AC foaming agent Parts, 2 parts of ZB530 foaming aid, stabilizer compound: 1.8 parts of calcium zinc composite stabilizer, 0.6 parts of hydrotalcite, 80 parts of plasticizer tributyl citrate (TBC).

[0033] The preparation method of the non-toxic and environment-friendly PVC foaming functional masterbatch comprises the following steps:

[0034] The first step: add SG-7PVC resin and plasticizer tributyl citrate (TBC) to the internal mixer according to the above weight parts and mix, heat to 70-80°C, and stir for 10-15min;

[0035] The second step: add the mixture of SG-7PVC resin and plasticizer tributyl citrate (TBC) from the main feeding port of the twin-screw extruder, and then add the above-mentioned calcium-zinc composite...

Embodiment 2

[0039] Non-toxic and environmentally friendly PVC foaming functional masterbatch, including the following components in parts by mass: by weight, 100 parts of SG-7PVC resin, foaming agent compound: 0.8 parts of thermal expansion microspheres, 1.2 parts of AC foaming agent 1 part, 2 parts of ZB530 foaming aid, stabilizer compound: 1 part of calcium-zinc composite stabilizer, 0.6 part of epoxy soybean oil, 0.6 part of phosphite, 80 parts of tributyl citrate (TBC).

[0040] The preparation method of the non-toxic and environment-friendly PVC foaming functional masterbatch comprises the following steps:

[0041] The first step: add SG-7PVC resin and plasticizer tributyl citrate (TBC) to the internal mixer according to the above weight parts and mix, heat to 70-80°C, and stir for 10-15min;

[0042]The second step: add the mixture of SG-7PVC resin and plasticizer tributyl citrate (TBC) from the main feeding port of the twin-screw extruder, and then add the above-mentioned calcium-zi...

Embodiment 3

[0046] Non-toxic and environmentally friendly PVC foaming functional masterbatch, including the following components in parts by mass: by weight, 100 parts of SG-7PVC resin, foaming agent compound: 0.8 parts of thermal expansion microspheres, 1.2 parts of AC foaming agent Parts, 2 parts of ZB530 foaming aid, stabilizer compound: 1.8 parts of calcium zinc composite stabilizer, 0.6 parts of hydrotalcite, plasticizer cyclohexane 1,2-diisononyl dicarboxylate (DINCH) 85 share.

[0047] The preparation method of the non-toxic and environment-friendly PVC foaming functional masterbatch comprises the following steps:

[0048] The first step: add SG-7PVC resin and plasticizer cyclohexane 1,2-diisononyl dicarboxylate (DINCH) to the internal mixer according to the above weight parts, heat to 70-80°C, stir for 10 -15min;

[0049] The second step: Add the mixture of SG-7PVC resin and plasticizer cyclohexane 1,2-diisononyl dicarboxylate (DINCH) from the main feeding port of the twin-screw...

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Abstract

The invention provides a PVC foamed functional master batch and a preparation method thereof. The PVC foamed functional master batch comprisesPVC resin, a foaming agent, a foaming aid, a stabilizer and a plasticizer; and based on 100 parts by weight of PVC resin, the number of parts by weight of the foaming agent is 1-4, the number of parts by weight of the foaming aid is 1.5-2.2, the number of parts by weight of the stabilizer is 2-2.6, and the number of parts by weight of the plasticizer is 85-95. The PVC foamed functional master batch has the characteristics of no toxicity, environment friendliness, good foaming effect and the like, a foaming product of the PVC foamed functional master batch is regular in bubble distribution, and the density and the shrinkage rate of the PVC foamed product can be effectively reduced.

Description

technical field [0001] The invention relates to a non-toxic and environment-friendly PVC foaming functional masterbatch and a preparation method of the PVC foaming functional masterbatch, belonging to the field of functional masterbatch granulation. Background technique [0002] Polyvinyl chloride (PVC) is one of the five largest synthetic resins in the world. PVC material has the characteristics of high strength, low price, good chemical corrosion resistance, good electrical insulation and difficult to burn. It is widely used in shoemaking, Engineering construction, food packaging and electrical fields. [0003] In the preparation process of PVC foam products, a certain foaming agent needs to be added. Currently, the foaming agent added is mainly an organic chemical foaming agent, such as azodicarbonamide. Patent CN103304919B uses azodicarbonamide as a foaming agent to make PVC foamed shoe sole materials, but azodicarbonamide has a high decomposition temperature and is an ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/098C08K3/26C08K5/11C08K5/524C08J9/32C08J9/10C08J3/22
CPCC08J9/32C08J9/103C08J3/226C08J2427/06C08J2327/06C08J2203/22C08J2203/04C08K5/098C08K3/26C08K5/11C08K5/524
Inventor 何志兰聂志军章超高亮杨阳
Owner 快思瑞科技(上海)有限公司
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