Production method for environmental-friendly low-temperature-resistant antiflaming compound plasticizer

Abstract

The invention discloses a production method for environmental-friendly low-temperature-resistant antiflaming compound plasticizer. The production method comprises the following steps: (1) preparing a plasticizer matrix: 1) esterification, 2) purification, 3) filter pressing purification, and 4) distillation; (2) preparing a low-temperature-resistant antiflaming system: evenly mixing nanosilicon dioxide, gas phase method silica aerogel, methyl hydrogen silicone oil, hydroxyl polydimethylsiloxane, vinyl trimethoxy silane, ammonium polyphosphate, reactive diluent, compatilizer, coupling reagent, flatting agent and mixed rare earth chloride at a ratio; (3) preparing the environmental-friendly low-temperature-resistant antiflaming compound plasticizer: evenly mixing the plasticizer matrix and the low-temperature-resistant antiflaming system obtained in the steps, wherein the addition of the low-temperature-resistant antiflaming system is 1.7-1.9wt% of the plasticizer matrix. The plasticizer has the advantages of good environmental protection property, high plastification efficiency, low temperature resistance, extremely low volatility and good stability.

Description

technical field

[0001] The invention relates to a production method of a plasticizer, in particular to a production method of an environment-friendly low temperature resistant flame retardant composite plasticizer. Background technique

[0002] Plasticizer is a kind of polymer material additives. There are many kinds. The most common variety is DEHP (commercial name DOP). DEHP chemical name is bis(2-ethylhexyl) phthalate, which is a colorless , Odorless liquid, widely used in industry. Plasticizer is a polymer material additive widely used in industry. Adding this substance in plastic processing can make it more flexible, easy to process, and can be legally used for industrial purposes. The existing ordinary low-temperature resistant plasticizers are easy to volatilize because of their small molecular weight and low boiling point. After long-term use, the plasticizers will precipitate from the product, which directly affects the low temperature resistance of the product and...

Examples

Embodiment 1

[0022] This embodiment is a production method of an environmentally friendly low temperature resistant flame retardant composite plasticizer, comprising the following steps:

[0023] (1) Preparation of plasticizer matrix:

[0024] (1) Esterification: Pour the measured decanol into the reactor according to the ratio. After the temperature of the reactor is lower than 80°C, add sebacic acid according to the ratio, and then add the catalyst according to the ratio. When the temperature of the material rises to 220°C, the negative Pressure reaction, when the acid value <0.1mgKOH / g, carry out flash dealcoholization; the weight ratio of sebacic acid and decanol is: sebacic acid: 1 part, decanol: 1.57 parts; the addition amount of catalyst is decanol 0.2% of the total weight of diacid and decanol;

[0025] (2) Refining: After the flash evaporation, add sodium carbonate according to the ratio for neutralization. The neutralization time is 10 minutes. When the temperature of the reacto...

Embodiment 2

[0033] This embodiment is a production method of an environmentally friendly low temperature resistant flame retardant composite plasticizer, comprising the following steps:

[0034] (1) Preparation of plasticizer matrix:

[0035] (1) Esterification: Pour the measured decanol into the reactor according to the ratio. After the temperature of the reactor is lower than 80°C, add sebacic acid according to the ratio, and then add the catalyst according to the ratio. When the temperature of the material rises to 223°C, start negative reaction. Pressure reaction, when the acid value <0.1mgKOH / g, carry out flash dealcoholization; the weight ratio of sebacic acid and decanol is: sebacic acid: 1 part, decanol: 3 parts; the addition amount of catalyst is decanol 0.6% of the total weight of diacid and decanol;

[0036] (2) Refining: After the flash evaporation, add sodium carbonate according to the ratio for neutralization. The neutralization time is 20 minutes. When the temperature of t...

Embodiment 3

[0044] This embodiment is a production method of an environmentally friendly low temperature resistant flame retardant composite plasticizer, comprising the following steps:

[0045] (1) Preparation of plasticizer matrix:

[0046] ⑴Esterification: Pour the measured decanol into the reactor according to the ratio. After the temperature of the reactor is lower than 80°C, add sebacic acid according to the ratio, and then add the catalyst according to the ratio. When the temperature of the material rises to 225°C, start negative reaction. Pressure reaction, when the acid value <0.1mgKOH / g, carry out flash dealcoholization; the weight ratio of sebacic acid and decyl alcohol is: sebacic acid: 1 part, decyl alcohol: 5 parts; the addition amount of catalyst is decyl alcohol 1% of the total weight of diacid and decanol;

[0047] (2) Refining: After the flash evaporation, add sodium carbonate according to the ratio for neutralization. The neutralization time is 30 minutes. When the tem...

technical field

[0001] The invention relates to a production method of a plasticizer, in particular to a production method of an environment-friendly low temperature resistant flame retardant composite plasticizer. Background technique

[0002] Plasticizer is a kind of polymer material additives. There are many kinds. The most common variety is DEHP (commercial name DOP). DEHP chemical name is bis(2-ethylhexyl) phthalate, which is a colorless , Odorless liquid, widely used in industry. Plasticizer is a polymer material additive widely used in industry. Adding this substance in plastic processing can make it more flexible, easy to process, and can be legally used for industrial purposes. The existing ordinary low-temperature resistant plasticizers are easy to volatilize because of their small molecular weight and low boiling point. After long-term use, the plasticizers will precipitate from the product, which directly affects the low temperature resistance of the product and...

Examples

Embodiment 1

[0022] This embodiment is a production method of an environmentally friendly low temperature resistant flame retardant composite plasticizer, comprising the following steps:

[0023] (1) Preparation of plasticizer matrix:

[0024] (1) Esterification: Pour the measured decanol into the reactor according to the ratio. After the temperature of the reactor is lower than 80°C, add sebacic acid according to the ratio, and then add the catalyst according to the ratio. When the temperature of the material rises to 220°C, the negative Pressure reaction, when the acid value <0.1mgKOH / g, carry out flash dealcoholization; the weight ratio of sebacic acid and decanol is: sebacic acid: 1 part, decanol: 1.57 parts; the addition amount of catalyst is decanol 0.2% of the total weight of diacid and decanol;

[0025] (2) Refining: After the flash evaporation, add sodium carbonate according to the ratio for neutralization. The neutralization time is 10 minutes. When the temperature of the reacto...

Embodiment 2

[0033] This embodiment is a production method of an environmentally friendly low temperature resistant flame retardant composite plasticizer, comprising the following steps:

[0034] (1) Preparation of plasticizer matrix:

[0035] (1) Esterification: Pour the measured decanol into the reactor according to the ratio. After the temperature of the reactor is lower than 80°C, add sebacic acid according to the ratio, and then add the catalyst according to the ratio. When the temperature of the material rises to 223°C, start negative reaction. Pressure reaction, when the acid value <0.1mgKOH / g, carry out flash dealcoholization; the weight ratio of sebacic acid and decanol is: sebacic acid: 1 part, decanol: 3 parts; the addition amount of catalyst is decanol 0.6% of the total weight of diacid and decanol;

[0036] (2) Refining: After the flash evaporation, add sodium carbonate according to the ratio for neutralization. The neutralization time is 20 minutes. When the temperature of t...

Embodiment 3

[0044] This embodiment is a production method of an environmentally friendly low temperature resistant flame retardant composite plasticizer, comprising the following steps:

[0045] (1) Preparation of plasticizer matrix:

[0046] ⑴Esterification: Pour the measured decanol into the reactor according to the ratio. After the temperature of the reactor is lower than 80°C, add sebacic acid according to the ratio, and then add the catalyst according to the ratio. When the temperature of the material rises to 225°C, start negative reaction. Pressure reaction, when the acid value <0.1mgKOH / g, carry out flash dealcoholization; the weight ratio of sebacic acid and decyl alcohol is: sebacic acid: 1 part, decyl alcohol: 5 parts; the addition amount of catalyst is decyl alcohol 1% of the total weight of diacid and decanol;

[0047] (2) Refining: After the flash evaporation, add sodium carbonate according to the ratio for neutralization. The neutralization time is 30 minutes. When the tem...