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Environment-friendly anti-oxidation terminator for PVC and preparation method thereof

A terminator and environment-friendly technology, which is applied in the field of environment-friendly antioxidant terminator for PVC and its preparation, can solve the problems that antioxidants cannot be used in the PVC polymerization process, PVC has no anti-aging effect, and is easy to produce pellets, etc. Good termination effect, no toxic ingredients, short production time effect

Active Publication Date: 2020-12-01
乌鲁木齐市华泰隆化学助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides an environment-friendly anti-oxidation terminator for PVC and a preparation method thereof, which overcomes the deficiencies in the prior art and can effectively solve the problem that the existing PVC has no anti-aging effect and is prone to produce pellets and precipitate styrene and other toxic substances. substances; and the existing antioxidants cannot be applied to the problem of PVC polymerization process

Method used

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  • Environment-friendly anti-oxidation terminator for PVC and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, the environment-friendly antioxidant terminator for PVC, raw materials include 20 to 30 parts of plasticizers, 15 to 25 parts of heat stabilizers, 3 to 20 parts of phenolic antioxidants, sub 2 to 15 parts of phosphate antioxidants, 3 to 25 parts of sulfur-containing antioxidants, 5 to 20 parts of lipophilic surfactants, 3 to 25 parts of hydrophilic surfactants, and 5 parts of cosolvents to 10 parts, 1 to 3 parts of thickener, and 50 to 100 parts of deionized water. Thermal stabilizers are known and used in the prior art.

Embodiment 2

[0028] Embodiment 2, this PVC is obtained by the following preparation method with environment-friendly antioxidant terminator: the first step, the required amount of phenolic antioxidant, phosphite antioxidant and sulfur-containing antioxidant are added to the In the required amount of plasticizer, mix uniformly to obtain the first mixed liquid; in the second step, add the required amount of lipophilic surfactant and heat stabilizer in the first mixed liquid, and mix uniformly to obtain the second mixed liquid; the third step , add a required amount of co-solvent to the second mixed liquid, and mix uniformly at a temperature of 60°C to 100°C to obtain an organic phase; the fourth step is to add a required amount of hydrophilic surfactant and Thickener, mixed uniformly at a temperature of 30°C to 60°C to obtain a water phase; step 5, adding the water phase to the organic phase in 2 to 3 times, and mixed uniformly at a temperature of 50°C to 80°C, An emulsion is obtained, and a...

Embodiment 3

[0029] Example 3, as an optimization of the above example, the phenolic antioxidant is more than one of antioxidant 1010, antioxidant 1076, antioxidant 300, antioxidant BHT and antioxidant 1035.

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Abstract

The invention relates to the technical field of additives for PVC (Polyvinyl Chloride), and discloses an environment-friendly antioxygen termination agent for PVC and a preparation method thereof. Rawmaterials, in parts by weight, of the environment-friendly antioxygen termination agent for the PVC comprise a plasticizer, a heat stabilizer, a phenol antioxidant, a phosphite antioxidant, a sulfur-containing antioxidant, a lipophilic surfactant, a hydrophilic surfactant, a cosolvent, a thickener and deionized water. The environment-friendly antioxygen termination agent for the PVC, which is provided by the invention, has a favorable termination effect, aging whiteness and a thermostable time compared with a conventional termination agent; further, the environment-friendly antioxygen termination agent for the PVC, which is provided by the invention, far exceeds an index of an international high-class product; meanwhile, the environment-friendly antioxygen termination agent for the PVC, which is provided by the invention, is averagely decreased by 25 percent in use level compared with the conventional termination agent, has a simple preparation process, a low requirement on equipment,a short production time and no toxic component, and is an excellent-performance environment-friendly antioxygen termination agent for the PVC, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of auxiliary agents for PVC, and relates to an environment-friendly anti-oxidation terminator for PVC and a preparation method thereof. Background technique [0002] The invention relates to the technical field of PVC additives, in particular to the preparation and application of an antioxidant compound emulsion terminator used in a PVC resin polymerization process. [0003] In the production of PVC (polyvinyl chloride) by the suspension method, for safety, when the late stage of the polyvinyl chloride polymerization reaction drops to the specified pressure or an abnormality occurs, a terminator must be added to the polymerization reactor to terminate the single unit in the reactor and the pipeline. The body continues to carry out the polymerization reaction, so that it terminates the polymerization reaction immediately. The quality of the terminator directly affects the progress of the termination reaction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L1/28C08L75/04C08L5/00C08L91/00C08K5/103C08K5/1515C08K5/11C08K5/372C08K5/526C08K5/134C08K5/375
CPCC08K5/103C08K5/11C08K5/1345C08K5/1515C08K5/372C08K5/375C08K5/526C08L1/286C08L5/00C08L27/06C08L75/04C08L91/00C08L2201/08
Inventor 姜雪张沾王刚霞闫世友郭彦斌满小林赵强
Owner 乌鲁木齐市华泰隆化学助剂有限公司
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