A kind of synthesis method of high degree of polymerization matted polyvinyl chloride based on Pickering emulsion type crosslinking agent

Abstract

The invention relates to a method for synthesizing high-polymerization matte polyvinyl chloride based on a Pickering emulsion type cross-linking agent. Linking agent, and then used in the suspension method to synthesize high-polymerization matted polyvinyl chloride, the prepared Pickering emulsion cross-linking agent is environmentally friendly and has strong stability, when the Pickering emulsion cross-linking The function and formation of gel are uniform, the utilization rate is high, the adaptability is good in the polyvinyl chloride suspension system, and the amount of use is small. Less, high strength, strong environmental adaptability.

Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and in particular relates to a method for synthesizing high-polymerization-degree matting polyvinyl chloride based on a Pickering emulsion-type crosslinking agent. Background technique

[0002] Polyvinyl chloride (PVC) resin is one of the five general-purpose plastics, widely used in industry, agriculture, construction and other fields. In recent years, polyvinyl chloride resin, especially high-polymerization polyvinyl chloride (HPVC) resin, has developed from generalization to high-performance, specialization, engineering and specialization, and with the gradual improvement of domestic and foreign consumers' requirements for product appearance Improvement, many applications require the appearance of HPVC resin to have low gloss and a certain matting effect, so that the demand for matting HPVC resin is increasing. In order to achieve the matting effect, one method, such as the traditio...

Examples

Embodiment 1

[0031] (1) Preparation of Pickering emulsion type cross-linking agent: Weigh 1.2g of nano-montmorillonite solid particles and disperse them in 60mL of deionized water, stir them with a magnetic stirrer for 40min, place them in an ultrasonic generator for ultrasonic dispersion for 40min, and the suspension Stand still for more than 20 hours to fully wet and expand the montmorillonite particles, then use a high-speed shear emulsifier to stir and disperse for 2 minutes at a speed of 3000rpm to make a solid particle suspension, and set aside; weigh 10g of diallyl phthalate, Add 20g polyethylene glycol dimethacrylate and 10g decene into the beaker, stir with a magnetic stirrer for 15min to mix the three evenly; then add 60g of the prepared montmorillonite solid particle suspension to the beaker, Next, use a high-speed shear emulsion machine to shear and emulsify for 6 minutes to obtain a Pickering emulsion type cross-linking agent, which is sealed and stored for subsequent use;

[...

Embodiment 2

[0035] (1) Preparation of Pickering emulsion type cross-linking agent: Weigh 2.0g of nano-bentonite solid particles and disperse them in 150mL of deionized water, stir with a magnetic stirrer for 40min, place them in an ultrasonic generator for ultrasonic dispersion for 40min, and let the suspension stand More than 20 hours to fully wet and expand the bentonite particles, and then use a high-speed shear emulsifier to stir and disperse for 2 minutes at a speed of 3000rpm to make a solid particle suspension, and set aside; weigh 10g diallyl maleate, 30g ethylene glycol di Add acrylate and 10g decene into the beaker, stir with a magnetic stirrer for 15min to mix the three evenly; then add 150g of the prepared bentonite solid particle suspension into the beaker, and use a high-speed shear emulsifier to emulsify at room temperature 6min, the Pickering emulsion type cross-linking agent was prepared, sealed and preserved, for subsequent use;

[0036] (2) Synthesis of high degree of p...

Embodiment 3

[0039] (1) Preparation of Pickering emulsion type cross-linking agent: Weigh 2.0g of nano-montmorillonite solid particles and disperse them in 320mL of deionized water, stir them with a magnetic stirrer for 40min, place them in an ultrasonic generator for ultrasonic dispersion for 40min, and the suspension Stand still for more than 20 hours to fully wet and expand the montmorillonite particles, then use a high-speed shear emulsifier to stir and disperse for 2 minutes at a speed of 3000 rpm to make a solid particle suspension for subsequent use; respectively weigh 17g of diallyl phthalate, Add 51g of polyethylene glycol diacrylate and 12g of octene into the beaker, and stir with a magnetic stirrer for 15min to mix the three evenly; then add 320g of the prepared montmorillonite solid particle suspension to the beaker, and use High-speed shear emulsification machine emulsified for 6 minutes to prepare Pickering emulsion type cross-linking agent, sealed and stored, for later use; ...

technical field

[0001] The invention belongs to the technical field of polymer materials, and in particular relates to a method for synthesizing high-polymerization-degree matting polyvinyl chloride based on a Pickering emulsion-type crosslinking agent. Background technique

[0002] Polyvinyl chloride (PVC) resin is one of the five general-purpose plastics, widely used in industry, agriculture, construction and other fields. In recent years, polyvinyl chloride resin, especially high-polymerization polyvinyl chloride (HPVC) resin, has developed from generalization to high-performance, specialization, engineering and specialization, and with the gradual improvement of domestic and foreign consumers' requirements for product appearance Improvement, many applications require the appearance of HPVC resin to have low gloss and a certain matting effect, so that the demand for matting HPVC resin is increasing. In order to achieve the matting effect, one method, such as the traditio...

Examples

Embodiment 1

[0031] (1) Preparation of Pickering emulsion type cross-linking agent: Weigh 1.2g of nano-montmorillonite solid particles and disperse them in 60mL of deionized water, stir them with a magnetic stirrer for 40min, place them in an ultrasonic generator for ultrasonic dispersion for 40min, and the suspension Stand still for more than 20 hours to fully wet and expand the montmorillonite particles, then use a high-speed shear emulsifier to stir and disperse for 2 minutes at a speed of 3000rpm to make a solid particle suspension, and set aside; weigh 10g of diallyl phthalate, Add 20g polyethylene glycol dimethacrylate and 10g decene into the beaker, stir with a magnetic stirrer for 15min to mix the three evenly; then add 60g of the prepared montmorillonite solid particle suspension to the beaker, Next, use a high-speed shear emulsion machine to shear and emulsify for 6 minutes to obtain a Pickering emulsion type cross-linking agent, which is sealed and stored for subsequent use;

[...

Embodiment 2

[0035] (1) Preparation of Pickering emulsion type cross-linking agent: Weigh 2.0g of nano-bentonite solid particles and disperse them in 150mL of deionized water, stir with a magnetic stirrer for 40min, place them in an ultrasonic generator for ultrasonic dispersion for 40min, and let the suspension stand More than 20 hours to fully wet and expand the bentonite particles, and then use a high-speed shear emulsifier to stir and disperse for 2 minutes at a speed of 3000rpm to make a solid particle suspension, and set aside; weigh 10g diallyl maleate, 30g ethylene glycol di Add acrylate and 10g decene into the beaker, stir with a magnetic stirrer for 15min to mix the three evenly; then add 150g of the prepared bentonite solid particle suspension into the beaker, and use a high-speed shear emulsifier to emulsify at room temperature 6min, the Pickering emulsion type cross-linking agent was prepared, sealed and preserved, for subsequent use;

[0036] (2) Synthesis of high degree of p...

Embodiment 3

[0039] (1) Preparation of Pickering emulsion type cross-linking agent: Weigh 2.0g of nano-montmorillonite solid particles and disperse them in 320mL of deionized water, stir them with a magnetic stirrer for 40min, place them in an ultrasonic generator for ultrasonic dispersion for 40min, and the suspension Stand still for more than 20 hours to fully wet and expand the montmorillonite particles, then use a high-speed shear emulsifier to stir and disperse for 2 minutes at a speed of 3000 rpm to make a solid particle suspension for subsequent use; respectively weigh 17g of diallyl phthalate, Add 51g of polyethylene glycol diacrylate and 12g of octene into the beaker, and stir with a magnetic stirrer for 15min to mix the three evenly; then add 320g of the prepared montmorillonite solid particle suspension to the beaker, and use High-speed shear emulsification machine emulsified for 6 minutes to prepare Pickering emulsion type cross-linking agent, sealed and stored, for later use; ...