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Calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and manufacturing method thereof

A technology of calcium stearate and adipate, which is applied in the field of calcium zinc stearate and dimaltitol adipate PVC stabilizers, can solve the problem of high melting point of polyols, inconvenience of polyols, "zinc burning", etc. Problems, to achieve low melting point, improve processing performance, reduce the effect of balance torque

Inactive Publication Date: 2013-11-27
慧科高新科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest disadvantage of zinc-based heat stabilizers is that the ZnCl generated during use 2 It can promote the thermal degradation of PVC, that is, it is prone to "zinc burning", so it is necessary to add auxiliary stabilizers to avoid "zinc burning". The commonly used auxiliary stabilizers are β-diketone
[0004] However, compounding polyols directly with calcium-zinc composite heat stabilizers has a very big defect: polyols have a high melting point and are prone to segregation
This brings inconvenience to the application of polyols

Method used

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  • Calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and manufacturing method thereof
  • Calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and manufacturing method thereof
  • Calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] First add 35 parts of zinc stearate and 30 parts of calcium stearate into the kneader and knead at 160°C for 20 minutes, then add 5 parts of stearic acid, 10 parts of dimaltitol adipate and 10 parts of Epoxidized soybean oil is used as an auxiliary heat stabilizer, kneaded and stirred for 5 minutes, then added 5 parts of dibenzoylmethane, kneaded and stirred until the dibenzoylmethane is completely melted, kneaded and stirred for 10 minutes, and discharged into tablets, sieved, and packaged , the vested final product.

Embodiment 2

[0020] First add 45 parts of zinc stearate and 25 parts of calcium stearate into the kneader and knead at 130°C for 30 minutes, then add 5 parts of polyethylene wax, 5 parts of dimaltitol adipate and 5 parts of Epoxidized soybean oil is used as an auxiliary heat stabilizer, kneaded and stirred for 15 minutes, then added 10 parts of dibenzoylmethane, kneaded and stirred until the dibenzoylmethane is completely melted, then kneaded and stirred for 20 minutes, discharged into tablets, sieved, and packaged , the vested final product.

Embodiment 3

[0022] First add 40 parts of zinc stearate and 25 parts of calcium stearate into the kneader and knead at 145°C for 25 minutes, then add 10 parts of polyethylene wax, 15 parts of dimaltitol adipate and 5 parts of Epoxidized soybean oil is used as an auxiliary heat stabilizer, kneaded and stirred for 12 minutes, then added 10 parts of stearoylbenzoylmethane, kneaded and stirred until the stearoylbenzoylmethane is completely melted, then kneaded and stirred for 20 minutes, and discharged into tablets, Screening, packaging, vested final product.

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Abstract

The invention relates to a calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and a manufacturing method thereof, which belong to the field of heat stabilizers for polyvinyl chloride (PVC) processing. Through adding adipic acid di-maltitol ester to carry out compounding with zinc stearate, calcium stearate, beta-diketone, a lubricant and an auxiliary heat stabilizer, a high-performance calcium-zinc stearate and adipic acid di-maltitol ester PVC composite heat stabilizer is obtained. A novel heat stabilizer prepared by using the method disclosed by the invention has the characteristics of ideal initial color, good long-term heat stabilization effect, and capability of promoting the plasticizing, lowering the balance torque, and improving the processing performance. The heat stabilizer prepared by using the method disclosed by the invention has the advantages of high efficiency and environment friendliness.

Description

technical field [0001] The invention relates to a calcium zinc stearate and dimaltitol adipate PVC stabilizer and a preparation method thereof, belonging to the field of heat stabilizers for polyvinyl chloride (PVC) processing. Background technique [0002] Polyvinyl chloride (PVC) has the advantages of good processability, high strength, corrosion resistance, good insulation, and flame retardant, and is widely used in industrial and agricultural production. However, there are some defects in the PVC molecular chain, such as allyl chloride, etc. The processing temperature of PVC is generally above 170°C. At this high temperature, active Cl atoms such as allyl chloride are easily removed in the form of HCl, resulting in " "zipper" type chain reaction, making the color of PVC turn yellow or even black. And the generated HCl will further promote the thermal degradation of PVC. Therefore, heat stabilizers need to be added during PVC processing. Commonly used heat stabilizers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/098C08K5/1545
Inventor 李德刚唐守余
Owner 慧科高新科技股份有限公司
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