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A kind of hydroxylinolenic acid derivative and environment-friendly liquid calcium zinc PVC heat stabilizer and PVC products
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A liquid calcium zinc and heat stabilizer technology, which is applied in the preparation of carboxylate, the preparation of organic compounds, chemical instruments and methods, etc., can solve the problems of great hidden dangers in safety performance, non-compliance with environmental protection performance, adverse environmental effects, etc. , to achieve the effect of inhibiting and absorbing hydrogen chloride, good dispersion and stability, eliminating allyl chloride and unsaturated bonds
Active Publication Date: 2021-11-02
SUZHOU FENGBEI BIOTECH CO LTD
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Problems solved by technology
However, such system solvents, such as mineral oil, have disadvantages such as low flash point and non-environmental protection, which not only have great hidden dangers in safety performance, but also have significant adverse effects on the environment, and do not meet the current high standard requirements for environmental protection performance.
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preparation example Construction
[0049] According to a preferred aspect of the present invention, the preparation method of the liquid calcium-zinc PVC heat stabilizer comprises the steps:
[0050] (1) adding oleic acid, vegetable oil-based solvent, and hydroxylinolenic acid derivatives into the reactor according to the proportion, stirring and mixing at 70-90°C to obtain a mixture;
[0051] (2) Add zinc oxide and calcium oxide into the mixture of step (1) according to the proportion, heat up to 110-115° C., continue stirring, and react to obtain a reaction solution;
[0052] (3) After adding hydrotalcite and isovalerylbenzoylmethane to the reaction solution of step (2), maintaining stirring for 40-60min, adding triphenyl phosphite and epoxy linseed oil, stirring for 50-70min, cooling to Filter at 40-60°C, and collect a light yellow filtrate, which is the liquid calcium-zinc PVC heat stabilizer.
Embodiment 1
[0056] This example provides a hydroxylinolenic acid derivative for a vegetable oil-based liquid calcium-zinc PVC heat stabilizer, which is prepared by the following method: add 3g tert-butyl hydroperoxide, 1mg SeO to a 500mL three-necked flask 2 , 75ml of ethanol, stirred at 20°C for 1h, slowly added 9g of linolenic acid, and continued to stir for 80h. Add water to wash, collect the solvent layer, and recover ethanol to obtain 7.4 g of light yellow oil (ie, hydroxylinolenic acid derivative), and the recovery rate of ethanol is 82%.
Embodiment 2
[0058] This example provides a hydroxylinolenic acid derivative for a vegetable oil-based liquid calcium-zinc PVC heat stabilizer, which is prepared by the following method: add 15g tert-butyl hydroperoxide, 5mg SeO2 to a 500mL three-necked flask 2 , 300ml of ethanol, stirred at 30°C for 1h, slowly added 45g of linolenic acid, and continued to stir for 30h. Add water to wash, collect the solvent layer, and recover ethanol to obtain 39.1 g of light yellow oil (ie, hydroxylinolenic acid derivative), and the recovery rate of ethanol is 75%.
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Abstract
The invention discloses a derivative of hydroxylinolenic acid, an environment-friendly liquid calcium-zinc PVC heat stabilizer and PVC products. Hydroxylinolenic acid exists by making linolenic acid coexist in an organic solvent, in tert-butyl hydroperoxide and selenium dioxide. The environment-friendly liquid PVC heat stabilizer includes the following components: calcium salt main stabilizer, zinc salt main stabilizer, auxiliary stabilizer, vegetable oil-based solvent, hydroxylinolenic acid derivative and the application of the above-mentioned environment-friendly liquid calcium-zinc PVC heat stabilizer in PVC products; the hydroxylinolenic acid derivative of the present invention can make the main calcium-zinc stabilizer and the auxiliary stabilizer obtain good dispersibility and Stability, the heat stabilizer made at the same time not only has the performance of non-toxic and environmental protection, but also has the function of inhibiting and absorbing HCL at the same time, and can maintain the initial coloring, control "zinc burning", precipitation and exudation, and achieve a stable effect.
Description
technical field [0001] The invention belongs to the technical field of PVC heat stabilizers, in particular to a hydroxylinolenic acid derivative, an environment-friendly liquid calcium-zinc PVC heat stabilizer and PVC products. Background technique [0002] Polyvinyl chloride (PVC) resin is a polymer produced by free radical polymerization of vinyl chloride monomer, and it is one of the five general-purpose resins in the world. Compared with other general-purpose resin products, PVC has the advantages of high strength, corrosion resistance, incombustibility, and low price, and is widely used in construction, packaging, office and other fields. However, because it contains a large amount of polar chlorine atoms, it is easy to decompose and release hydrogen chloride, resulting in a short life and a decrease in physical and mechanical properties. And the degradation caused by mechanical shear, in addition, it can also be damaged by long-term heat, light, oxygen, etc. during th...
Claims
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Application Information
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