PVC environment-friendly stabilizer

An environmentally friendly stabilizer and unsaturated technology, applied in the field of material chemistry, can solve problems such as the inability to effectively control the degradation of PVC, and achieve the effects of better thermal stability, low energy consumption and low operating costs.

Active Publication Date: 2016-12-07
大连宝蓝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary calcium and zinc-based soap salt composite stabilizers cannot effectively control the degradation of PVC.

Method used

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  • PVC environment-friendly stabilizer
  • PVC environment-friendly stabilizer
  • PVC environment-friendly stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In the first step, glycerin and butenedioic acid are added into the stirred reactor at a molar ratio of 1.0:2.0, and reacted at 80°C for 4-6 hours under normal pressure (or 10-12 hours under normal pressure and room temperature) to obtain unsaturated glycerol ester; Calcium hydroxide and glycerol equimolarity were added to the unsaturated glycerol ester, stirred and reacted at normal temperature and pressure for 2 hours.

[0019] In the second step, the above product was dried at 105°C for 12 hours, then placed in a vacuum oven at 40°C for 6 hours, and crushed through a 100-mesh sieve to obtain a colorless powder calcium unsaturated glycerol ester calcium salt.

Embodiment 2

[0021] In the first step, add glycerin and butenedioic acid into the stirred reactor at a molar ratio of 0.5:1.0, and react for 2-10 hours under normal pressure at 50-150°C to obtain an unsaturated glycerol ester; Stir in the unsaturated glycerol ester at room temperature and pressure for 6 hours.

[0022] In the second step, the above product was dried at 105°C for 12 hours, then placed in a vacuum oven at 40°C for 6 hours, and crushed through a 100-mesh sieve to obtain a colorless powder calcium unsaturated glycerol ester calcium salt.

Embodiment 3

[0024] In the first step, glycerin and butenedioic acid are added to the stirred reactor at a molar ratio of 0.5:1.0, and react at normal pressure and 150°C for 4 hours to obtain unsaturated glycerol ester; The ester was stirred at room temperature and pressure for 4 h.

[0025] In the second step, the above product was dried at 105°C for 12 hours, then placed in a vacuum oven at 40°C for 6 hours, and crushed through a 100-mesh sieve to obtain a colorless powder calcium unsaturated glycerol ester calcium salt.

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Abstract

The invention provides a PVC environment-friendly stabilizer, which is composed of the following components by weight: 50-90 parts of glycerin unsaturated ester calcium salt, 10-30 parts of hydroxyalkyl zinc oxide, 2.0-8.0 parts of polyphenyl phosphate, 0.5-2.5 parts of polyvinyl chloride heat stabilizer beta-diketone, 0.5-3.0 parts of pentaerythritol, and 0.2-2.0 parts of titanium dioxide. The PVC environment-friendly stabilizer provided by the invention adopts the ''glycerin unsaturated ester calcium salt'' as the main environment-friendly stabilizer for a PVC hot working process, the thermal stability is significantly improved, the production process operation cost is low, the PVC environment-friendly stabilizer completely replaces the traditional lead salt heat stabilizer, and is accord with the requirements of green production and products.

Description

technical field [0001] The invention belongs to the technical field of material chemistry, and in particular relates to a synthetic method of a PVC environment-friendly stabilizer and unsaturated glycerin ester calcium salt. Background technique [0002] High polyvinyl chloride (PVC) is the second largest general-purpose plastic in output after polyethylene (PE). It has the advantages of high strength, plasticization, corrosion resistance, flame retardancy, good insulation, and transparency. A wide variety of plastic products can be produced by using appropriate additives and using appropriate processes and equipment, including hard products such as plates, pipes, pipe fittings, and profiled materials, and soft products such as films, pipes, shoes, toys, cable materials, and artificial leather. Used in industrial construction, agriculture, daily necessities, packaging, electric power, public utilities and other fields. However, PVC has the disadvantages of poor thermal stab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/103C08K5/526C08K5/07C08K5/053C08K3/22C07C67/08C07C69/60
CPCC07C67/08C08K3/22C08K5/053C08K5/07C08K5/103C08K5/526C08K13/02C08L2201/08C08L27/06C07C69/60
Inventor 齐少嫣徐世传王少君范凤君徐超王立国董志远
Owner 大连宝蓝科技有限公司
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