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Adjuvant for inhibiting zinc burning and preparation method thereof

An auxiliary agent and zinc burning technology, which is applied in the auxiliary agent for inhibiting zinc burning and its preparation field, can solve the problems of affecting the normal use of products, poor long-term burning resistance, and easy to blacken rapidly, so as to delay the zinc burning phenomenon and prolong the use Long life, long-term thermal stability improvement effect

Inactive Publication Date: 2018-01-05
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, in the late stage of PVC products, zinc stabilizers produce ZnCL2 which has a strong catalytic ability to remove HCL, resulting in poor long-term fire resistance, and severe discoloration of PVC products in the later stage, especially zinc soap, which is very prone to rapid blackening, and black spots or All turn black, affecting the normal use of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment provides an auxiliary agent for inhibiting zinc burning, and the specific preparation method is as follows:

[0030] S1: First weigh 5Kg of oxalic acid and 45Kg of sorbitol into the reaction kettle, slowly raise the temperature to 60°C for esterification reaction, and prepare ester compounds, cool the ester compounds to room temperature and press into tablets for later use .

[0031] S2: Put 50Kg of the above-mentioned ester compound, 9Kg of oxidized polyethylene wax, 19Kg of modified zeolite and 13Kg of magnesium stearate into the reactor in turn, heat the reactor, and keep stirring the materials for 15 minutes until After mixing and melting, the auxiliary agent product D1 for inhibiting zinc burning can be obtained.

Embodiment 2

[0033] This embodiment provides an auxiliary agent for inhibiting zinc burning, and the specific preparation method is as follows:

[0034] S1: Weigh 6Kg of adipic acid and 50Kg of pentaerythritol into the reaction kettle, slowly raise the temperature to 90°C for esterification reaction, and prepare the ester compound, cool the ester compound to room temperature and press into tablets for later use.

[0035] S2: Put 56Kg of the ester compound obtained above, 10Kg of polyethylene wax, 20Kg of hydrotalcite and 14Kg of magnesium stearate into the reaction kettle in turn, heat the reaction kettle, and keep stirring the materials for 20 minutes until they are mixed and melted So far, the auxiliary agent product D2 for inhibiting zinc burning can be obtained.

Embodiment 3

[0037] This embodiment provides an auxiliary agent for inhibiting zinc burning, and the specific preparation method is as follows:

[0038] S1: Weigh 7Kg of adipic acid and 55Kg of maltitol into the reaction kettle, slowly raise the temperature to 50°C for esterification to prepare ester compounds, cool the ester compounds to room temperature and press into tablets for later use.

[0039] S2: 62Kg of the above-obtained ester compounds, 11Kg of monoglyceride stearate, 21Kg of hydrotalcite-like compounds, and 15Kg of magnesium stearate are successively put into the reactor, and the reactor is heated and kept stirring. The material is mixed and melted for 25 minutes, and the auxiliary product D3 for inhibiting zinc burning can be obtained.

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PUM

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Abstract

The invention relates to an auxiliary agent for inhibiting zinc burning and a preparation method thereof. The auxiliary agent for inhibiting zinc burning is composed of the following raw materials in mass ratio: 5-7 parts of organic dibasic acid, 45-55 parts of polyhydric alcohol, lubricant 9-11 parts, 19-21 parts of inorganic additives, 13-15 parts of magnesium stearate; the auxiliary agent for suppressing zinc burning of the present invention has effectively suppressed the zinc burning phenomenon of zinc-containing stabilizer in polyvinyl chloride, and improved The thermal stability of the product improves its processing performance and prolongs the service life of the product.

Description

technical field [0001] The invention relates to an auxiliary agent and a preparation method thereof, in particular to an auxiliary agent for inhibiting zinc burning and a preparation method thereof. Background technique [0002] In recent years, polyvinyl chloride (PVC) has been recognized by people because of its good transparency, flexibility, compatibility, and easy processing and molding. The amount of vinyl chloride reaches about 28%. However, due to its structural defects, PVC has poor stability when heated, and it is easy to decompose and release hydrogen chloride gas. The solution is to introduce heat stabilizers during PVC processing to improve its heat resistance. Commonly used heat stabilizers mainly include lead salts, metal soaps, organic tin, rare earths and calcium / zinc, among which calcium / zinc stabilizers are non-toxic, environmentally friendly, low in price and good in lubricity. Has a broad space for development. However, in the late stage of PVC produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/30C08K13/02C08K3/34C08K5/098C08K5/11C08K5/1545C08K5/103C08K3/26C08L27/06
Inventor 冯炳滔
Owner 惠州市兴邦新材料科技有限公司
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