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Composite heat stabilizer and method for processing chlorine-containing polymer

A technology of compounding heat stabilizer and heat stabilizer is applied in the processing field of chlorine-containing polymers, which can solve the problems of poor stability and large dosage, and achieve the effect of reducing cost

Active Publication Date: 2012-10-24
广东胜达塑胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal soap heat stabilizers are usually used in the form of multiple metal soap complexes, which have the advantages of being green and environmentally friendly, but their disadvantages are large dosage and poor stability

Method used

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  • Composite heat stabilizer and method for processing chlorine-containing polymer

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Embodiment Construction

[0012] The processing method of the composite heat stabilizer and the chlorine-containing polymer of the present invention will be further described in detail in conjunction with the examples below.

[0013] The compound thermal stabilizer of the embodiment of the present invention, by mass, it can comprise the mixture of 10~30% ethylenediaminetetraacetic acid (EDTA) and citric acid, 0~30% epoxidized soybean oil, and 40~80% % organotin heat stabilizer. In the mixture of the compound heat stabilizer ethylenediaminetetraacetic acid or citric acid, the mass percent content of ethylenediaminetetraacetic acid can be 8-20%, and the mass percent content of citric acid can be 2-10%. Organotin heat stabilizers can be alkyltin maleate, mercaptan organotin, etc., for example (CH 3 ) 2 Sn(SCH 2 COOC 8 h 17 ) 2 . Preferably, the mass percent content of the organotin heat stabilizer in the composite heat stabilizer can be 60-80%. In addition, the epoxidized soybean oil may be commer...

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Abstract

The invention relates to a composite heat stabilizer which comprises the following components by mass, 10%-30% of ethylene diamine tetraacetic acid, citric acid or other compositions, 0-30% of epoxy soybean oil and 40%-80% of organotin heat stabilizer. The invention also provides a method for processing a chlorine-containing polymer. The composite heat stabilizer has the advantages of nontoxicity, reduced cost and good stability.

Description

technical field [0001] The invention relates to a thermal stabilizer and a processing method for a chlorine-containing polymer, in particular to a composite thermal stabilizer and a processing method for a chlorine-containing polymer using the composite thermal stabilizer. Background technique [0002] Chlorine-containing polymers are used in a wide variety of applications today. Taking polyvinyl chloride (PVC) as an example, it has been widely used in various fields of industrial and agricultural production due to its excellent corrosion resistance and good mechanical properties, as well as its advantages of low price, abundant raw materials, and mature manufacturing technology. . [0003] When PVC is processed, it needs to be heated. However, due to defects in the structure of polyvinyl chloride, hydrogen chloride will be released when it is heated to 110°C, and hydrogen chloride will also accelerate the decomposition of polyvinyl chloride; Obvious degradation will caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/00C08K5/17C08K5/092C08K5/1515C08K5/57C08K5/58C08L27/06C08L23/28C08L27/24
Inventor 罗超云李树民林雪春
Owner 广东胜达塑胶科技有限公司