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Ca-Zn liquid composite stabilizing agent and application thereof
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A composite stabilizer, liquid technology, applied in rigid pipes, mechanical equipment, pipes/pipe joints/fittings, etc., can solve the problems of narrow processing range, poor thermal stability, application limitations of zinc soap and zinc-based composite products, etc. To achieve the effect of simple method, excellent performance and effective thermal stability
Inactive Publication Date: 2010-06-23
杭州三叶新材料股份有限公司
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Problems solved by technology
However, zinc soap often causes "zinc burning" of products, so the thermal stability is poor and the processing range is narrow
The application of zinc soap and zinc-based composite products is limited to some extent in the occasions where the performance of the product is required to be high.
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Embodiment 1
[0058] Calcium-zinc liquid composite stabilizer, the liquid composite stabilizer consists of the following components by weight percentage:
[0059] 35% overbased liquid calciumcarboxylate with a calcium metal content of 10% by weight
[0060] Zinc carboxylate 10% with a zinc metal content of 15% by weight
[0091]The above-mentioned components are mixed and stirred uniformly to prepare the calcium-zinc liquid composite stabilizer.
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Abstract
The invention relates to a PVC heat stabilizing agent, in particular to a liquid composite stabilizing agent used by PVC tubing and pipe fitting and application thereof. Ca-Zn liquid composite stabilizing agent is composed of the following components in percentage by weight: 25-40% of calciumcarboxylate containing 8-12 wt% of excess alkali, 5-20% of zinccarboxylate containing 10-20 wt% of zinc, 10-30% of phosphite ester, 5-30% of epoxidized soybean oil, 2-8% of beta-diketone, 1-8% of antioxygen, 5-10% of polyol ester and 10-20% of solvent. The invention adopts a proper quantity of metal stabilizer and synergetic stabilizing agent to cooperate, has reasonable prescription and simple method, keeps favourable heat stability and transparency to PVC products, conforms to environmental protection requirements, has the characteristics of favourable performance, low production cost and the like and is suitable for popularizing and applying.
Description
technical field [0001] The invention relates to a PVC heat stabilizer, in particular to a liquid composite stabilizer for PVC pipes and pipe fittings and its application. Background technique [0002] At present, lead salt heat stabilizers have been banned in the United States and the European Union. In the United States, organotin heat stabilizers have completely replaced lead salt heat stabilizers, while calcium / zinc heat stabilizers are mainly used in Europe. In Asia, due to production cost and technical reasons, China and India are still the largest users of lead salt composite stabilizers. In China, with the improvement of people's living standards, people's increasing attention to health issues and the gradual improvement of corresponding environmental protection laws and regulations, lead salt composite stabilizers will be replaced by varieties with higher safety and reasonable cost that meet environmental protection requirements. . The increasingly stringent, espec...
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Application Information
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