PVC (polyvinyl chloride) heat stabilizer based on polyol ester metal complex

A technology of metal complexes and polyol esters, applied in the field of PVC heat stabilizers based on polyol ester metal complexes, can solve the problems of compatibility between heat stabilizers and PVC substrates, and achieve good thermal stability and Lubrication performance, ease of production and use, improved compatibility

Active Publication Date: 2018-08-17
GUANGDONG XINDA ADVANCED MATERIALS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] All of the above works used activated zinc oxide and pentaerythritol as raw materials to synthesize zinc pentaerythritol through solid-state reaction, and used it in PVC stabilization system, and achieved good results, but did not solve the problem of poor compatibility between heat stabilizers and PVC matrix

Method used

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  • PVC (polyvinyl chloride) heat stabilizer based on polyol ester metal complex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Calculated in parts by mass, weigh 100 parts of PVC, add 4 parts of magnesium-based pentaerythritol ester, 2.4 parts of calcium stearate, 1 part of dibenzoylmethane, 4 parts of calcium carbonate, and 4 parts of DOP. After stirring and mixing these raw materials, refer to the national standard GB / T2917.1-2002, use the Congo red test commonly used in the PVC product industry to characterize the static thermal stability, and use the torque rheology test to characterize the dynamic thermal stability and processing performance. Performance, during the test of dynamic thermal stability performance, the temperature of the material reaches 190°C-195°C, and the test results are shown in Table 1 and Table 2.

[0028] The magnesium-based pentaerythritol ester is prepared by a method: Weigh the reactant raw materials with the ratio of dipentaerythritol, palmitic acid and stearic acid as 1:1.1:1.1, add it into a three-necked flask and mix, and stir while heating , after heating up t...

Embodiment 2

[0030] Calculated in parts by mass, weigh 100 parts of PVC, add 4 parts of zinc-based pentaerythritol ester, 2.4 parts of calcium stearate, 1 part of hydrotalcite, 4 parts of calcium carbonate, and 4 parts of DOP. After stirring and mixing these raw materials, refer to the national standard GB / T2917.1-2002, use the Congo red test commonly used in the PVC product industry to characterize the static thermal stability, and use the torque rheology test to characterize the dynamic thermal stability and processing performance. Performance, during the test of dynamic thermal stability performance, the temperature of the material reaches 190°C-195°C, and the test results are shown in Table 1 and Table 2.

[0031] The zinc-based pentaerythritol ester is prepared by a method: Weigh the reactant with a ratio of dipentaerythritol and lauric acid of 1:1.1, put it into a three-necked flask and mix it, stir while heating, and wait until the temperature rises to 130°C Finally, add p-toluenesu...

Embodiment 3

[0033]Calculated in parts by mass, weigh 100 parts of PVC, add 4 parts of barium pentaerythritol ester, 2.4 parts of calcium stearate, 1 part of epoxidized soybean oil, 4 parts of calcium carbonate, and 4 parts of DOP. After stirring and mixing these raw materials, refer to the national standard GB / T2917.1-2002, use the Congo red test commonly used in the PVC product industry to characterize the static thermal stability, and use the torque rheology test to characterize the dynamic thermal stability and processing performance. Performance, during the test of dynamic thermal stability performance, the temperature of the material reaches 190°C-195°C, and the test results are shown in Table 1 and Table 2.

[0034] The barium-based pentaerythritol ester is prepared by a method: Weigh the reactant whose molar ratio of dipentaerythritol and myristic acid is 1:2.1, put it into a three-necked flask and mix it, stir while heating, and wait until the temperature rises to After 140°C, add...

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Abstract

The invention discloses a PVC (polyvinyl chloride) heat stabilizer based on polyol ester metal complex. The heat stabilizer is prepared by mixing the following components at high speed, and calculatedby 100 parts by weight of PVC, the part by weight of each component is as follows: 3 to 6 parts of polyol ester metal complex, 1 to 3 parts of calcium stearate, 0 to 2 parts of auxiliary stabilizer,3 to 6 parts of calcium carbonate and 3 to 6 parts of plasticizer. The heat stabilizer disclosed by the invention is easy and environment-friendly to produce and use, and not only is the compatibilitybetween pentaerythritol and PVC improved, but also the heat stabilizer has initial and long-term heat stabilization effect and weather fastness. A congo red experiment and a torque rheological experiment indicate that the PVC heat stabilizer disclosed by the invention which is synthesized from the polyol ester metal complex has good heat stabilization property and lubricating property.

Description

technical field [0001] The invention relates to the technical field of PVC heat stabilizers, in particular to a PVC heat stabilizer based on polyol ester metal complexes. Background technique [0002] Polyvinyl chloride (PVC) has the characteristics of corrosion resistance, flame retardant and good insulation performance, and is widely used in construction, medical and health, daily chemical and agricultural fields. PVC is mostly polymerized by free radicals. However, the free radical polymerized PVC products inevitably have unstable defect structures in the molecular chain, such as allyl chloride, tertiary chlorine, etc., which cause PVC to be easily degraded and degraded under processing conditions. HCl gas is removed, that is, the decomposition temperature of PVC is lower than the processing temperature. At the same time, the removed HCl has a catalytic effect on the degradation of PVC. Due to the effect of shear force during processing, the degradation of PVC will be ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08K13/02C08K5/098C08K3/26C08K5/103C08K5/12
CPCC08K3/26C08K5/0091C08K5/098C08K5/12C08K13/02C08K2003/265C08L27/06C08L2201/08C08L91/00
Inventor 廖正福曹慧娟韩栋王新波林泽鹏
Owner GUANGDONG XINDA ADVANCED MATERIALS TECH CO LTD
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