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Flaky calcium-zinc PVC heat stabilizer and preparation method thereof

A heat stabilizer, a technology of sheet calcium zinc, applied in the field of sheet calcium zinc PVC heat stabilizer and its preparation, can solve the problems of low whiteness, low alkali capacity, unstable quality, etc., and achieve enhanced adsorption and removal capacity, quality of protection, effect of avoiding dust problems

Pending Publication Date: 2021-05-28
JIANGSU LIANMENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, activated clay waste water is used in the raw material, which makes the final heat stabilizer have the disadvantages of low whiteness, low alkali capacity, and unstable quality; meanwhile, because the heat stabilizer is powder, it is PVC processing enterprises will encounter dust problems during the application process, and powder stabilizers are prone to quality changes during transportation and storage. To solve these problems, they must be solved in the form of sheet product stabilizer products

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0045] The second aspect of the present invention provides a preparation method of the above-mentioned flaky calcium-zinc PVC heat stabilizer, which is characterized in that: the steps include the following steps: (1) first put the zinc salt and the organic wax at 120 ° C to 160 ° C and high-speed Under stirring, it is fully melted; (2) Add calcium salt and continue to stir at high speed. After it is completely melted, heat it at 120-160°C for 20-30 minutes to make the product uniform; (3) Add organic esters and organic alcohols and continue to stir at high speed. After it is completely melted, heat it at 120-160°C for 20-30 minutes to make the product uniform; (4) add inorganic substances and heat it at 120-160°C for 20-30 minutes to make the product uniform; Cooling with cooling water at about 0°C to shape the product; (6) Finally, the resultant is crushed, packaged, and put into storage to obtain a flaky calcium-zinc PVC heat stabilizer.

[0046] The polyethylene wax in the...

Embodiment 1

[0055] Embodiment 1 provides a kind of flaky calcium-zinc PVC heat stabilizer, and raw material comprises following parts by weight: raw material comprises following parts by weight: zinc salt (zinc stearate, zinc laurate, zinc isooctanoate, zinc oxide, weight ratio is 1:1:0.2:0.5) 40 parts, calcium salt (calcium stearate, calcium laurate, calcium lauryl hydroxystearate, weight ratio is 1:1:0.5) 12 parts, organic ester (polypentaerythritol ester, Stearic acid ester, weight ratio is 1:1) 6 parts, organic alcohol (stearyl alcohol, dipentaerythritol weight ratio is 0.3:1) 6 parts, organic wax (polyethylene wax, paraffin wax, oxidized polyethylene wax, weight The ratio is 1:0.5:0.8) 15 parts, inorganic matter (the weight ratio of hydrotalcite, calcium carbonate, barium sulfate, and calcium hydroxide is 3:1:1:0.5) 20 parts. Among them, the average fineness of hydrotalcite is 3200 mesh, and the average fineness of calcium carbonate is 2200 mesh.

[0056] In this example: zinc stear...

Embodiment 2

[0066] The specific implementation of this embodiment is the same as that of Example 1, except that the fineness of hydrotalcite is 3000 mesh, and the fineness of calcium carbonate is 2600 mesh.

[0067] The flaky calcium-zinc PVC heat stabilizer prepared in this embodiment is designated as R2.

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PUM

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Abstract

The invention discloses a flaky calcium-zinc PVC (polyvinyl chloride) heat stabilizer, which is prepared from the following raw materials in parts by weight: 35-45 parts of zinc salt, 10-15 parts of calcium salt, 5-8 parts of organic ester, 5-8 parts of organic alcohol, 10-20 parts of organic wax and 15-30 parts of inorganic matter. After the flaky calcium-zinc PVC heat stabilizer prepared in the invention is added into a PVC material, the heat stability, lubricity and tensile strength of the PVC material are effectively improved, and the flaky calcium-zinc PVC heat stabilizer does not have a dust phenomenon in a use process, is not easy to deteriorate in storage and transportation processes, is suitable for being popularized in the field of PVC heat stabilizers, and has a wide development prospect.

Description

technical field [0001] The invention relates to the field of chemical stabilizers, in particular to a flaky calcium-zinc PVC heat stabilizer and a preparation method thereof. Background technique [0002] PVC (polyvinyl chloride) is a thermoplastic polymer produced by the polymerization of vinyl chloride. Because its products have the advantages of easy control of hardness, good mechanical properties, corrosion resistance, good electrical insulation, high transparency and low price, etc., It is widely used in construction, light industry, chemical industry, electronics, aerospace, automobile, agriculture and other fields. However, PVC is prone to thermal degradation during processing, producing hydrogen chloride, and hydrogen chloride has the effect of catalyzing and accelerating degradation. Therefore, it is usually necessary to add heat stabilizers to inhibit thermal degradation and improve the performance of PVC products. [0003] PVC heat stabilizers are generally weak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L91/06C08L23/30C08K13/02C08K5/098C08K3/22C08K5/10C08K5/101C08K5/05C08K5/06C08K3/34C08K3/26C08K3/30
CPCC08L27/06C08L23/06C08K2003/2296C08K2201/014C08K2201/005C08K2003/265C08K2003/3045C08K2003/2206C08L2201/08C08L2205/03
Inventor 于治中
Owner JIANGSU LIANMENG CHEM
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