Zn-Ca compound stabilizer

A calcium-zinc composite and stabilizer technology, applied in the field of calcium-zinc composite stabilizers, can solve the problems of short continuous production operation period, easy dust pollution, poor production stability, etc., to extend the extrusion production cycle and achieve good production stability , the effect of long production cycle

Active Publication Date: 2011-01-12
WUHU CONCH NEW MATERIAL
View PDF3 Cites 36 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The stabilizers currently used in the production of plastic profiles on the market are mainly lead salt stabilizers. Although they have the advantages of low price, good electrical properties, low water absorption, high stabilization efficiency and large covering rate, they also have the following disadvantages: opaque ; When encountering sulfur, it is easy to cause pollution; high lead content, poisonous; high density, poor compatibility, easy to produce dust pollution
Although there are environmentally friendly profiles produced with calcium-zinc stabilizer system formulations, they have not been widely used due to high raw material costs, short continuous production cycle (generally about 5-7 days), and poor production stability.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Zn-Ca compound stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 28 parts by weight of zinc stearate, 8.8 parts of calcium stearate, 20.5 parts of hydrotalcite, 17.7 parts of polyols, 10.3 parts of β-diketones, 6.6 parts of G60, 7.1 parts of G22 and 2.5 parts of tetrakis[methyl-β -(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester is automatically metered and added to the reaction kettle, the blade is stirred at 57 rpm, and after stirring for 35 minutes, the blade drops to 40 rpm Cutting and packaging in seconds.

Embodiment 2

[0055] 31.5 parts of zinc stearate, 9.7 parts of calcium stearate, 29.8 parts of hydrotalcite, 16.3 parts of polyols, 4.5 parts of β-diketones, 4.6 parts of G60, 6.3 parts of G22 and 1.5 parts of tetrakis[methyl-β- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester is automatically metered and added to the reaction kettle, the blade is stirred at 55 rpm, and after stirring for about 32 minutes, the blade drops to 38 rpm Cutting and packaging in seconds.

Embodiment 3

[0057]30.8 parts by weight of zinc stearate, 8.5 parts of calcium stearate, 29.8 parts of hydrotalcite, 17.6 parts of polyols, 5.5 parts of β-diketones, 6.8 parts of G60, 4.5 parts of G22 and 1.25 parts of tetrakis[methyl-β -(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester is automatically metered and added to the reaction kettle, the blade is stirred at 58 rpm, and after stirring for 28 minutes, the blade drops to 40 rpm Cutting and packaging in seconds.

[0058] Embodiment 1-3 and the technical index of the PVC profiles that existing use calcium-zinc stabilizer production are as shown in table 1, table 2 and table 3:

[0059] The model of the calcium zinc stabilizer is WWP-HLB2, produced by Guangdong Weilinna Company.

[0060] Table 1

[0061]

Flexural modulus of elasticity

Charpy impact strength

Tensile impact strength

Example 1

2798.05

23.012

734.582

Example 2

2812.47

22.072

695.348

...

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 Zn-Ca compound stabilizer, comprising the following components in parts by weight: 28-35 parts of zinc stearate, 8-11 parts of calcium stearate, 18-32 parts of hydrotalcite, 14-22 parts of polyalcohol, 4.5-10.5 parts of Stearoylbenzoylmethane, 3.6-12 parts of external lubricant, 3.8-9.8 parts of internal lubricant and 1.0-5 parts of antioxidant. Compared with the prior art, the invention has the following characteristics of long continuous production period and good production stability; realization of toxicity and environmental protection without containing heavy metals, such as Ba, Cd, Pb and the like in the components; and avoidance of discoloration at the time of switching mercaptan organic tin without containing heavy metals, such as Ba, Cd, Pb and the like.

Description

technical field [0001] The invention belongs to a composite stabilizer, in particular to a calcium-zinc composite stabilizer used for plastic profiles, pipes, plates, foamed plastics and wood-plastics. Background technique [0002] The stabilizers currently used in the production of plastic profiles on the market are mainly lead salt stabilizers. Although they have the advantages of low price, good electrical properties, low water absorption, high stabilization efficiency and large covering rate, they also have the following disadvantages: opaque ; When encountering sulfur, it is easy to cause pollution; high lead content, poisonous; high density, poor compatibility, prone to dust pollution. Although there are environmentally friendly profiles produced with calcium-zinc stabilizer system formulations, they have not been widely used due to high raw material costs, short continuous production cycle (generally about 5-7 days), and poor production stability. Contents of the in...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K5/098C08K3/26C08K5/053C08K5/07C08K5/10C08K5/134C08L23/06
Inventor 李剑王杨林王加臣程建军胡道余李松群
Owner WUHU CONCH NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap