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Calcium-zinc stabilizer for PVC, and preparation method thereof

A calcium-zinc stabilizer and antioxidant technology, applied in the field of calcium-zinc stabilizer for PVC and its preparation, can solve the problems of limited thermal stabilization effect, limited application field of calcium-zinc thermal stabilizer, etc., to improve outdoor aging performance, The effect of reducing discoloration and improving stability

Inactive Publication Date: 2020-04-10
惠州市兴邦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

However, the calcium-zinc stabilizers independently developed in China are usually composed of polyols, β-diketones, phosphites, epoxy compounds, hydrotalcites, and zeolites. In the low PVC soft products, the application field of calcium zinc heat stabilizer is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention provides a calcium-zinc stabilizer for PVC. The calcium-zinc stabilizer is used to suppress the thermal degradation phenomenon of PVC products during processing. During the processing of PVC products, simply add the calcium-zinc stabilizer to PVC Among the raw materials, uniform mixing can significantly improve the thermal stability of PVC materials, and at the same time, it can also inhibit zinc burning and improve the overall quality of products.

[0027] This embodiment provides a kind of calcium-zinc stabilizer for PVC, and calcium-zinc stabilizer is made up of the component of following mass ratio:

[0028] Calcium stearate: 5 parts;

[0029] Zinc stearate: 14 parts;

[0030] Zeolite: 15 parts;

[0031] Zinc laurate: 5.5 parts;

[0032] Lubricant: 5 parts;

[0033] β-diketone: 3.5 parts;

[0034] Antioxidant: 1.5 parts;

[0035] 1,3-Dimethyl-6-aminouracil: 3 parts;

[0036] UV absorber: 3 parts;

[0037] Lanthanum maleamate: 4 parts.

[0038]...

Embodiment 2

[0041] This embodiment provides a kind of calcium-zinc stabilizer for PVC, and calcium-zinc stabilizer is made up of the component of following mass ratio:

[0042] Calcium stearate: 5.8 parts;

[0043] Zinc stearate: 14.7 parts;

[0044] Zeolite: 15.5 parts;

[0045] Zinc laurate 5.8 parts;

[0046] Lubricant: 5.3 parts;

[0047] β-diketone: 4 parts;

[0048] Antioxidant: 1.8 parts;

[0049] 1,3-Dimethyl-6-aminouracil: 3.5 parts;

[0050] UV absorber: 3.5 parts;

[0051] Lanthanum maleamate: 4.5 parts.

[0052] In this embodiment, the β-diketone is benzoylacetone; the lubricant is erucamide. Antioxidant is compound antioxidant, contains 50wt% tetrakis [3-(3'5'-di-tert-butyl-4'-hydroxyphenyl) propionic acid] pentaerythritol and 50wt% in compound antioxidant 4,4'-Thiobis(6-tert-butyl-3-methylphenol). The UV absorber is UV326. The zeolite used in the formula is ultrafine 4A zeolite, which is a powdery object with uniform particles.

[0053] In the process of preparin...

Embodiment 3

[0055] This embodiment provides a kind of calcium-zinc stabilizer for PVC, and calcium-zinc stabilizer is made up of the component of following mass ratio:

[0056] Calcium stearate: 6.5 parts;

[0057] Zinc stearate: 15.5 parts;

[0058] Zeolite: 15.8 parts;

[0059] Zinc laurate: 6.2 parts;

[0060] Lubricant: 5.8 parts;

[0061] β-diketone: 4.5 parts;

[0062] Antioxidant: 2 parts;

[0063] 1,3-Dimethyl-6-aminouracil: 3.8 parts;

[0064] UV absorber: 3.8 parts;

[0065] Lanthanum maleamate: 4.8 parts.

[0066] In this embodiment, the β-diketone is dibenzoylmethane; the lubricant is monoglyceride stearate. Antioxidant is compound antioxidant, contains 60wt% tetrakis [3-(3'5'-di-tert-butyl-4'-hydroxyphenyl) propionic acid] pentaerythritol and 40wt% in compound antioxidant 4,4'-Thiobis(6-tert-butyl-3-methylphenol). The UV absorber is UV328. The zeolite used in the formula is ultrafine 4A zeolite, which is a powdery object with uniform particles.

[0067] In the pro...

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Abstract

The invention relates to a calcium-zinc stabilizer for PVC, and a preparation method thereof. The calcium-zinc stabilizer is prepared from, by mass, 5-7 parts of calcium stearate, 14-16 parts of zincstearate, 15-16 parts of zeolite, 5.5-6.5 parts of zinc laurate, 5-6 parts of a lubricant, 3.5-5 parts of beta-diketone, 1.5-2.5 parts of an antioxidant, 3-4 parts of 1,3-dimethyl-6-aminouracil, 3-4 parts of an ultraviolet light absorber and 4-5 parts of lanthanum maleamate. The 1,3-dimethyl-6-aminouracil is used for replacing unstable chlorine atoms in the PVC, so the stability of PVC is improved, and the color change phenomenon of PVC is reduced; and the lanthanum maleamate is used to solve problem of zinc burning of PVC containing the calcium-zinc stabilizer in the using process, so the good effect of inhibiting zinc burning is achieved.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a calcium-zinc stabilizer for PVC and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics. Due to its excellent comprehensive performance and low price, it has been widely used in various fields, and its consumption is second only to polyethylene. However, due to the poor thermal stability of PVC, it is necessary to add an appropriate amount of heat stabilizer to inhibit the degradation of PVC during processing. At present, the commonly used human stabilizers can be roughly divided into lead salts, metal soaps, organotins, and rare earth heat stabilizers. Under the main theme of global environmental protection, the highly toxic lead salt heat stabilizers are gradually withdrawing from the market, the organotin heat stabilizers with superior performance are difficult to promote because of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/04C08K5/098C08K7/26C08K5/3462C08K5/20C08K5/3475C08K5/132
CPCC08K5/098C08K5/132C08K5/20C08K5/3462C08K5/3475C08K7/26C08K13/04C08K2201/014C08L27/06
Inventor 冯炳滔
Owner 惠州市兴邦新材料科技有限公司
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