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Magnesium-aluminum-zinc environment-friendly stabilizer special for U-PVC calendered sheet

An environmentally friendly stabilizer and stabilizer technology, applied in the field of PVC stabilizers, can solve the problems of poor thermal stability, large environmental impact, and rising prices, and achieve the effects of good stabilization effect, good colorability and low cost.

Inactive Publication Date: 2016-10-12
广东森德利环保新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PVC stabilizers mainly include lead salts, organotins, metal soaps and rare earths, etc. Among them, lead salts are heavy metal compounds, which are toxic and harmful substances, and have gradually withdrawn from the stabilizer market; organotin stabilizers are effective. And can be used for transparent products, but the price is high, and the production process has a great impact on the environment; ordinary metal soaps have poor thermal stability; rare earths are a relatively new type of stabilizer, but affected by the shortage of rare earth resources, their prices on the rise

Method used

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  • Magnesium-aluminum-zinc environment-friendly stabilizer special for U-PVC calendered sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 adopts following formula to prepare a kind of special environment-friendly stabilizer for U-PVC calendered sheet: Magnesium-aluminum-zinc composition 285kg, zinc stearate 60kg, antioxidant 1010 16kg, calcium acetylacetonate 55kg, three (2-hydroxyethyl base) isocyanurate 100kg, oxidized polyethylene wax 60kg, polyethylene wax 80kg.

[0018] The preparation method is as follows:

[0019] (1) The magnesium-aluminum-zinc composition was prepared using the method described in patent ZL200810110606.3: in a 1.5 cubic stainless steel reaction kettle equipped with a stirrer, a thermometer and a heating jacket, add pentaerythritol tristearate (PETS-3) 180Kg, stearic acid (Hst) 520Kg, adipic acid 178Kg, stir slowly when heated to 80-120°C, add 5Kg of glacial acetic acid (or hydrogen peroxide), stir well, and pour into the reaction kettle at 100°C-120°C Add ZnO44Kg, Mg(OH)2 48Kg and Al2O327Kg with a purity of more than 98%, continue to heat up to 140°C, and keep the r...

Embodiment 2

[0021] Embodiment 2 adopts the following formula to prepare a kind of special environment-friendly stabilizer for U-PVC calendered sheet: embodiment 1 makes magnesium-aluminum-zinc composition 260kg, zinc stearate 150kg, antioxidant 1010 18kg, calcium acetylacetonate 68kg, three (2-hydroxyethyl) isocyanurate 110kg, oxidized polyethylene wax 180kg, polyethylene wax 60kg.

Embodiment 3

[0022] Embodiment 3 adopts following formula to prepare a kind of special environment-friendly stabilizer for U-PVC calendered sheet: Embodiment 1 makes magnesium-aluminum-zinc composition 275kg, zinc stearate 50kg, antioxidant 1010 15kg, calcium acetylacetonate 46kg, three (2-hydroxyethyl) isocyanurate 1300kg, oxidized polyethylene wax 180kg, polyethylene wax 60kg.

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Abstract

The invention discloses a special environment-friendly stabilizer for U-PVC calendered sheet, which is prepared from the following components in weight ratio: 260-300 kg of magnesium-aluminum-zinc composition, 50-150 kg of zinc stearate, and 1010-15-15 kg of antioxidant. 20kg, calcium acetylacetonate 40~68kg, tris(2-hydroxyethyl) isocyanurate 80~130kg, oxidized polyethylene wax 50~250kg, polyethylene wax 30~100kg. The stabilizer of the invention is suitable for continuous calendering and extrusion production of U-PVC sheet, and has moderate dosage, low cost, good production process stabilization effect, good rolling effect, smooth processing, smooth sheet surface, good plasticization, and satisfactory mechanical properties. The requirements of the national standard also have the advantages of non-toxicity and high environmental protection performance; the U-PVC sheet prepared by the stabilizer of the present invention has stable chemical properties, no rust, good impact resistance, and good transparency. Good insulation and low thermal conductivity; good formability and colorability, and low processing cost; the PVC sheet produced conforms to GB / T15267 "PVC Rigid Sheets and Films for Food Packaging" and conforms to YBB00212005 Polyethylene Vinyl chloride solid medicinal tablet.

Description

technical field [0001] The invention relates to a PVC stabilizer, in particular to a special magnesium-aluminum-zinc environment-friendly stabilizer for producing PVC hard sheets by a calendering process. Background technique [0002] PVC (polyvinyl chloride) is currently one of the most widely used general-purpose plastics. In the sheet industry, U-PVC materials have been used for a long time due to their low manufacturing cost, excellent mechanical properties, good processing performance, corrosion resistance, and insulation. U-PVC sheets have been widely used in the construction and decoration industry, pharmaceutical packaging, and food packaging industries. [0003] The stability of PVC material is a key factor affecting the quality of PVC products. Therefore, PVC stabilizers are usually added during the processing and preparation of PVC to improve its stability, so as to obtain high-quality and high-performance PVC products. PVC stabilizers mainly include lead salts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/30C08L23/06C08K5/00C08K5/098C08K5/134C08K5/29
CPCC08L27/06C08L2201/10C08L2203/16C08L2205/02C08L2205/03C08L2205/035C08L23/30C08L23/06C08K5/00C08K5/098C08K5/1345C08K5/29
Inventor 徐军陈红光陈肇汉邱丽玲
Owner 广东森德利环保新材料科技有限公司
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