Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sodium-zinc PVC stabilizer and method for preparing same

A stabilizer, sodium-zinc technology, applied in the field of PVC heat stabilizer preparation, can solve the problems of good initial heat resistance, poor initial heat resistance, poor long-term heat resistance, etc., and achieve the effect of process safety and simple process

Active Publication Date: 2010-05-26
江苏嘉仁禾科技有限公司
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of the traditional calcium-zinc stabilizer, such as zinc soap, which has good initial heat resistance and poor long-term heat resistance, and calcium soap, which has good long-term heat resistance and poor initial heat resistance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: the preparation of sodium zinc stabilizer

[0021] 1. Preparation of zinc intermediate (CZ-109)

[0022] Add 389kg isooctanoic acid, 144kg antioxidant, 0.018kg defoamer, 116kg zinc oxide and 2.16kg filter aid in reaction tank. After stirring the reaction for twenty minutes. Reduce the stirring speed, slowly raise the temperature to 115-125°C, start vacuuming, and maintain at 120°C, -0.9MPa, until the extracted distilled water reaches 22.8kg. Add isooctanoic acid to supplement the weight of distilled water and stir for ten minutes. The air is pressurized, and the material in the reaction tank is pumped into the discharge tank. After filtering until the filtrate is completely clear, the zinc intermediate is obtained.

[0023] 2. Preparation of sodium intermediate (CA-106):

[0024] Add 819kg isooctanoic acid, 313kg kerosene, 213kg sodium hydroxide, 313kg maleic acid dibutyl ester and 6.69kg filter aid in the reaction tank, start stirring, and react fo...

Embodiment 2

[0027] Embodiment two: the preparation of sodium zinc stabilizer

[0028] 1. Preparation of zinc intermediate (CZ-109)

[0029] Add 395kg isooctanoic acid, 148kg antioxidant, 0.029kg defoamer, 120kg zinc oxide and 2.88kg filter aid in reaction tank. Start stirring and react for twenty minutes. Reduce the stirring speed, slowly raise the temperature to 115-125°C, start vacuuming, and maintain at 120°C, -0.9MPa, until the extracted distilled water reaches 23.30kg. Add isooctanoic acid to supplement the weight of distilled water and stir for ten minutes. The air is pressurized, and the material in the reaction tank is pumped into the discharge tank. After filtering until the filtrate is completely clear, the zinc intermediate is obtained.

[0030] 2. Preparation of sodium intermediate (CA-106):

[0031] Add 843kg isooctanoic acid, 333kg kerosene, 240kg sodium hydroxide, 333kg maleic acid dibutyl ester and 6.69kg filter aid in reaction tank. Start stirring and react for twen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a sodium-zinc PVC stabilizer and a method for preparing the same, and belongs to the technical field of PVC thermal stabilizer preparation. The method for preparing the same comprises the following steps: adding iso-octoic acid, antioxidant, defoaming agent, zinc oxide and filtration aid in proportion, stirring the mixture for 10 to 20 minutes, heating the mixture to 110 to 130 DEG C, adding iso-octoic acid in the same weight as the extracted distilled water after vacuumizing, stirring again to obtain zinc intermediate; adding iso-octoic acid, coal oil, sodium hydroxide, dibutyl maleate and filtration aid in proportion, stirring the mixture for 10 to 20 minutes, heating the mixture to 110 to 130 DEG C, adding coal oil in the same weight as the extracted distilled water after vacuumizing, stirring again to obtain sodium intermediate; and combining the obtained zinc intermediate and sodium intermediate, adding phosphorous acid ester and acrylic resin, heating the mixture to 100 to 110 DEG C, then stirring the mixture for 10 to 20 minutes, and cooling to obtain Na / Zn stabilizer. The method has the advantages of simple process, safe technique and capability of producing Na / Zn stabilizer on a large scale.

Description

technical field [0001] The invention belongs to the technical field of PVC heat stabilizer preparation, in particular to the preparation of a non-toxic, high-transparency sodium-zinc PVC stabilizer. Background technique [0002] In recent years, the world's total demand for PVC is still showing a growing trend. Because PVC plastic has the advantages of self-extinguishing, flame retardant, wear-resistant, high strength, good electrical insulation and chemical stability, and low price, It is widely used, but due to the special structure of PVC, the thermal stability is poor during processing, and it will cause discoloration, thermal degradation and other deterioration phenomena during use. A certain amount of heat stabilizer needs to be added during processing to inhibit It degrades, increasing its thermal stability. [0003] At present, my country's sodium-zinc stabilizers are still in the research and development stage, and most PVCs use calcium-zinc stabilizers in the proc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08K5/098C08K5/524C08L33/02C08L27/06
Inventor 沈卫锋
Owner 江苏嘉仁禾科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com