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Zinc-based heat stabilizer, preparation method thereof and heat stabilizer compound

A heat stabilizer and auxiliary heat stabilizer technology, applied in the field of zinc-based heat stabilizer, its preparation method and heat stabilizer compound, can solve the problem of good initial whiteness, achieve low cost, synthesis and compounding process The effect of simplicity, excellent initial thermal stability and long-term thermal stability

Active Publication Date: 2017-11-10
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with other system heat stabilizers, zinc-based heat stabilizers have the advantages of non-toxicity and good initial whiteness, but their outstanding disadvantage is "zinc burning". It is difficult to take into account the two problems in the previous research results

Method used

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  • Zinc-based heat stabilizer, preparation method thereof and heat stabilizer compound
  • Zinc-based heat stabilizer, preparation method thereof and heat stabilizer compound
  • Zinc-based heat stabilizer, preparation method thereof and heat stabilizer compound

Examples

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preparation example Construction

[0035] In a preferred embodiment, the preparation method of the zinc-based heat stabilizer comprises:

[0036] Step 1: Add the dehydrated ethanol solution dissolved with salicylaldehyde into the dehydrated ethanol solution dissolved with arginine, react to obtain a yellow solution, and filter to obtain a yellow powder solid H 2 L;

[0037] Step 2: Put H 2 L was dissolved in anhydrous methanol, anhydrous zinc acetate was added, stirred and reacted, filtered and dried to obtain Zn 2 (HL)(CH 3 COO) 3 ·xH 2 O(x=0~1.0).

[0038] In a more preferred specific embodiment, the preparation method of the zinc-based heat stabilizer may comprise the following steps:

[0039] Step 1. Dissolve 1.22g of salicylaldehyde in 25.00ml of absolute ethanol in a constant pressure funnel, drop it into 125.00ml of arginine-dissolved absolute ethanol solution at room temperature at a rate of 50.00ml / h, and then React at room temperature for 4-5h to obtain a yellow solution, and filter at room tempe...

example 1

[0060] 100.00g PVC resin, 10.00g tributyl citrate (TBC) and 3.00g Zn 2 (HL)(CH 3 COO) 3 ·xH 2 The mixture of O(x=0) prepared PVC samples according to the above PVC sample preparation method, and tested the thermal stability and anti-ultraviolet aging performance according to the above test standards. The specific results are shown in Table 1.

example 2

[0062] Mixing formula: 100.00g PVC resin, 10.00g tributyl citrate (TBC) and 3.00g compound heat stabilizer (ie heat stabilizer compound). Prepare PVC sample, test method and data list with example 1. Among them, the composite heat stabilizer contains: 1.20g Zn 2 (HL)(CH 3 COO) 3 ·xH 2 O(x=0), 1.20g ZnSt 2 , 0.60g PER.

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Abstract

The invention provides a zinc-based heat stabilizer, a preparation method thereof and a heat stabilizer compound containing the zinc-based heat stabilizer. The zinc-based heat stabilizer is a zinc-containing product as shown in the structural formula II, and chemical composition of the zinc-based heat stabilizer is Zn2(HL)(CH3COO)3.xH2O (x=0-1.0) in the description. The zinc-based heat stabilizer and the compound of the zinc-based heat stabilizer have excellent initial stain resistance and long-term heat aging resistance.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride (PVC) heat stabilizers, in particular to a zinc-based heat stabilizer, a preparation method thereof and a heat stabilizer compound. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics in the world. It has the advantages of high strength, corrosion resistance, good electrical insulation, and flame retardant. Coupled with mature production technology, PVC has been widely used in various fields of industry and agriculture. However, PVC is a heat-sensitive plastic, which will be thermally degraded at a temperature far lower than its processing requirements, resulting in deterioration of its mechanical and chemical properties. agent. [0003] Among many PVC heat stabilizers, zinc-based composite heat stabilizers (such as calcium stearate (CaSt 2 ) / zinc stearate (ZnSt 2 ) composite system) has been applied in the market because of its non-toxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08K5/098C08K5/053C08K5/17C08K5/526C08K5/09C08K5/11
CPCC08K5/053C08K5/09C08K5/098C08K5/11C08K5/17C08K5/526C08K2201/014C08L27/06C08L2201/08C08L91/00
Inventor 姚有为李帅邱晨
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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