A kind of in-situ suspension polymerization method of graphene/nano calcium carbonate/vinyl chloride terpolymer resin

A technology of vinyl chloride ternary copolymer resin and nano-calcium carbonate, which is applied in the field of nano-materials, can solve problems such as difficult implementation, and achieve the effects of avoiding demulsification, improving performance, and having thermodynamic stability

Active Publication Date: 2016-01-27
杭州华露碳烯高分子材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In summary, these problems make it difficult to implement this technical route in industrial production

Method used

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  • A kind of in-situ suspension polymerization method of graphene/nano calcium carbonate/vinyl chloride terpolymer resin
  • A kind of in-situ suspension polymerization method of graphene/nano calcium carbonate/vinyl chloride terpolymer resin
  • A kind of in-situ suspension polymerization method of graphene/nano calcium carbonate/vinyl chloride terpolymer resin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of graphene / nanometer calcium carbonate / vinyl chloride ternary copolymerization resin in-situ suspension polymerization method, specifically comprises the following steps:

[0029]Step 1: Add 1000mL deionized water to the flask; add 3g of intercalation agent sodium lauryl sulfate, fully dissolve; add 5g of graphene, 75g of nano-calcium carbonate, stir and disperse for 15 minutes; put it into an ultrasonic processor for 15 minutes, Ultrasonic power 1000 watts; heat up to 70 °C, add 10 g of emulsified micellar protective agent n-hexadecyl alcohol; add 400 mL of hydroxypropyl methylcellulose ether aqueous solution with a concentration of 2%, stir well; More than 1000 watts, the processing time is 60 minutes, and the in-situ polymerization grade graphene / nano calcium carbonate microemulsion is obtained. Observation by transmission electron microscope, the figure 1 .

[0030] Step 2: In a 20L stainless steel reaction kettle, add 10kg of deionized water; start stirri...

Embodiment 2

[0033] A kind of graphene / nanometer calcium carbonate / vinyl chloride ternary copolymerization resin in-situ suspension polymerization method, specifically comprises the following steps:

[0034] Step 1: Add 1000mL deionized water to the flask; add 10g of sodium dodecylbenzenesulfonate as an intercalation agent, and fully dissolve; add 5g of graphene and 150g of nano-calcium carbonate, stir and disperse for 15 minutes; put it into an ultrasonic processor for 30 Minutes, ultrasonic power 2000 watts; heat up to 70 degrees, add 20 g of emulsified micellar protective agent n-stearyl alcohol; add 400 mL of hydroxypropyl methylcellulose ether aqueous solution with a concentration of 2%, stir well; put it into an ultrasonic processor for processing, The ultrasonic power is 2000 watts, and the treatment time is 60 minutes to obtain in-situ polymerization grade graphene / nano-calcium carbonate microemulsion. Observation by transmission electron microscope, the figure 2 .

[0035] Step...

Embodiment 3

[0038] A kind of graphene / nanometer calcium carbonate / vinyl chloride ternary copolymerization resin in-situ suspension polymerization method, specifically comprises the following steps:

[0039] Step 1: Add 1000mL of deionized water to the flask; add 2g of sodium dodecyl sulfate and 8g of sodium dodecylbenzenesulfonate as intercalation agents, and fully dissolve; add 50g of graphene and 50g of nano calcium carbonate, stir and disperse for 15 minutes ; Put it into an ultrasonic processor for 15 minutes, with an ultrasonic power of 2000 watts; heat up to 70°C, add 30 g of emulsified micellar protective agent n-heptadecanol; add 400 mL of a 2% aqueous solution of hydroxypropyl methylcellulose ether, and stir thoroughly Put it into an ultrasonic processor for processing, the ultrasonic power is greater than 2000 watts, and the processing time is 60 minutes to obtain in-situ polymerization grade graphene / nano calcium carbonate microemulsion.

[0040] Step 2: In a 20L stainless stee...

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Abstract

The invention discloses a preparation method of graphene / nano calcium carbonate / vinyl chloride ternary copolymer resin by in-situ suspension polymerization. The preparation method comprises the following steps: by adopting mechanical ultrasonic dispersion and micro emulsion dispersant systems, obtaining an in-situ polymer grade graphene / nano calcium carbonate inorganic nano material dispersed micro-emulsion, adding the graphene / nano calcium carbonate micro-emulsion into a vinyl chloride suspension polymerization system, and performing in-situ polymerization on vinyl chloride monomers and graphene / nano calcium carbonate to obtain in-situ polymerized graphene / nano calcium carbonate / vinyl chloride ternary copolymer resin. Graphene and nano calcium carbonate are in nano-level dispersion in a polyvinyl chloride resin matrix. Each mechanical property of the resin is significantly improved because the resin integrates the advantages and characteristics of nano calcium carbonate and graphene modified polymers.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and in particular relates to a graphene / nano calcium carbonate / vinyl chloride ternary copolymer resin in-situ suspension polymerization method. Background technique [0002] Plastic modification by inorganic nanomaterials is generally divided into two methods: processing blending and in-situ polymerization. In the field of polyvinyl chloride processing, since dry nanopowders generally exist in the form of agglomerates, the shear force of the extruder screw in the processing of polyvinyl chloride products is difficult to disperse them below 100 nanometers, and the interface of nanoparticles Activity and other small size effects are also difficult to reflect, so if nanomaterials are modified by blending methods, the range is generally limited. In order to truly modify polyvinyl chloride through nanomaterials and realize the high performance of polyvinyl chloride resin, it is necessary to use in-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F114/06C08F2/44C08F2/20C08K9/04C08K3/04C08K3/26
Inventor 王猛韩和良
Owner 杭州华露碳烯高分子材料科技有限公司
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