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Safe non-toxic degradable compound stabilizer and preparation method thereof

A compound stabilizer, safe and non-toxic technology, applied in the field of stabilizers, can solve the problems of single function, weakened effect, and mutual influence of stabilizers

Pending Publication Date: 2022-05-13
圣地亚科技(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the improvement of the stability of PVC is mainly solved by adding various stabilizers. Most of the stabilizers on the market have single functions and cannot meet multiple needs at the same time, resulting in expensive materials. At the same time, the stabilizers may interact with each other, making the effect weakened. Even offset, therefore, it is particularly important to combine multiple effects to synthesize a new type of multifunctional stabilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] Preparation of polyvinyl chloride samples: Mix 50 parts of polyvinyl chloride resin powder, 50 parts of polyvinyl chloride resin paste and 3 parts of composite stabilizer evenly, spread it into a film, and put it in a constant temperature drying oven at 120°C for 20-30 minutes to plasticize , to prepare film products for testing various properties of polyvinyl chloride.

[0028] Light stability: According to GBT16422.3 national standard, artificial accelerated ultraviolet aging test is carried out by using UVA ultraviolet aging test box. The single cycle of aging process is 12h, and the total is 100 cycles (45d). Tensile strength test.

[0029] Thermal stability: according to GB / T9349 test, measure the time required for the sample to completely blacken.

[0030] Lubricity: Add the composite stabilizer prepared by the present invention into a torque rheometer for rheological performance test (rotor speed is 40rpm, temperature is 180°C), record plasticizing time and plas...

Embodiment 1

[0033] A safe, non-toxic and degradable composite stabilizer mainly includes, by weight parts: 62 parts of lubricant microspheres and 85 parts of stabilizer microspheres.

[0034] A preparation method of a safe, non-toxic and degradable composite stabilizer, the preparation method of the safe, non-toxic and degradable composite stabilizer mainly includes the following preparation steps:

[0035](1) Add epoxy sorbitol linolenate, maleic anhydride with 0.6 times the mass of epoxy sorbitol linolenate and triethylamine with 0.005 times the mass of epoxy sorbitol linolenate in a three-necked flask, and set the temperature at 165°C After reacting for 3 hours, wash with deionized water for 3 times, and separate liquid to obtain lubricant;

[0036] (2) Dissolve the lubricant in acetonitrile with 26 times the mass of the lubricant and place it in the flask, add azobisisobutyronitrile with 0.02 times the mass of the lubricant, and after ultrasonic degassing for 5 minutes, connect the fl...

Embodiment 2

[0047] A safe, non-toxic and degradable composite stabilizer mainly comprises 85 parts of stabilizer microspheres in parts by weight.

[0048] A preparation method of a safe, non-toxic and degradable composite stabilizer, the preparation method of the safe, non-toxic and degradable composite stabilizer mainly includes the following preparation steps:

[0049] (1) Ethanol and phloroglucinol carboxylic acid-o-nitroaniline coupling with 4.32 times the quality of phloroglucinol carboxylic acid-o-nitroaniline coupling and phloroglucinol carboxylic acid-o-nitroaniline coupling A sodium hydroxide solution with a mass fraction of 0.2 times the mass of 18% is placed in a four-necked flask, heated to 110° C., and hydrosulfite with a mass fraction of 0.9 times the mass of phloroglucinol carboxylic acid-o-nitroaniline coupling is added at 400 rpm After stirring for 3 hours, place it in an ice-water bath at 0°C, add hydrochloric acid with a mass fraction of 10% until the pH of the solution...

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Abstract

The invention discloses a safe non-toxic degradable compound stabilizer and a preparation method thereof, and relates to the technical field of stabilizers. The preparation method comprises the following steps: preparing lubricant microspheres from maleic anhydride, linolenic acid and sorbitol to achieve an internal lubrication effect; then, stabilizing agent microspheres are prepared from phloroglucinol carboxylic acid, o-nitroaniline and calcium acetate, so that the stabilizing agent microspheres absorb ultraviolet rays, delay aging of the polyvinyl chloride, inhibit pyrolysis reaction of the polyvinyl chloride and improve the thermal stability of the polyvinyl chloride; and finally, the lubricant microspheres and the stabilizer microspheres are mixed and act together to enhance the stabilizing effect of the composite stabilizer. The safe, non-toxic and degradable composite stabilizer prepared by the invention has the effects of light and heat stability, lubrication and smoke suppression.

Description

technical field [0001] The invention relates to the technical field of stabilizers, in particular to a safe, non-toxic and degradable composite stabilizer and a preparation method thereof. Background technique [0002] With the development of the economy and the improvement of people's living standards, the application of plastics has become a new hot spot in the market, and it has become an indispensable material in the fields of automobiles, aerospace, electronic devices, building materials, and agriculture. Polyvinyl chloride is one of the five general-purpose plastics and has various excellent properties, so it is widely used in many fields such as chemical industry, construction, electronics, and agriculture. However, in the actual production process, there is always an unstable chlorine structure on the synthetic polyvinyl chloride chain, which makes it easy to decompose and generate hydrogen chloride gas during processing and heating, which affects the appearance, col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/1515C08K5/3475C08L27/06
CPCC08K5/1515C08K5/3475C08L2201/08C08L27/06
Inventor 芮汉华陈俊施保强庄伟陈玉伟
Owner 圣地亚科技(江苏)有限公司