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Use of a polymer particle containing tertiary amino groups on the surface as a thermally reversible reactive filler and its composition

A technology of polymer particles and polymer materials, which is applied in the field of polymer fillers, can solve problems such as environmental pollution and resource waste, and achieve excellent reinforcement performance

Inactive Publication Date: 2015-12-02
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it difficult for reinforced modified polymers to be recycled and reused through thermoplastic reprocessing, which not only causes waste of resources, but also produces solid waste from waste cross-linked reinforced polymer materials, leading to environmental pollution problems

Method used

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  • Use of a polymer particle containing tertiary amino groups on the surface as a thermally reversible reactive filler and its composition
  • Use of a polymer particle containing tertiary amino groups on the surface as a thermally reversible reactive filler and its composition

Examples

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preparation example Construction

[0023] In the present invention, the emulsion polymerization preparation method of surface chlorine-containing polymer particles comprises the following steps:

[0024] (1) Pre-emulsification: Pre-emulsify the vinyl monomers used to form polymer particles under suitable conditions;

[0025] (2) The monomer is polymerized to form particles: add an initiator to the pre-emulsified material to carry out the polymerization reaction, and keep it warm for a period of time;

[0026] (3) Particle surface functionalization: In the system obtained in step (2), add monomers containing tertiary amino groups dropwise under stirring and nitrogen conditions, and continue polymerization to obtain polymer particles containing tertiary amino groups on the surface.

[0027] Wherein, the initiator can use oxidation-reduction initiator systems such as ammonium persulfate-sodium bicarbonate, hydrogen peroxide-ferrous sulfate, hydroperoxide-ferrous salt, and water-soluble azo initiators.

[0028] Pr...

Embodiment 1

[0051] The preparation of the polymer particle filler that the surface of embodiment 1 contains tertiary amine group

[0052] Add 62g of styrene monomer into a 1000ml four-neck flask filled with 480g of deionized water, pass nitrogen gas to deoxygenate for 10 minutes, set the mechanical stirring speed to 300 rpm, heat up to 40°C, and add 3.00g to the system Sodium dodecylsulfonate, 3.00g of divinylbenzene and 1.20g of sodium bicarbonate were stirred and pre-emulsified for 30 minutes. Then raise the temperature to 81°C, and add 1.60g of ammonium persulfate initiator dissolved in 20ml of deionized water in advance, cool down to 70°C after polymerization for 6 hours, adjust the pH value to 9, and slowly add 6.20g of dimethylaminomethacrylate dropwise Ethyl ester, after which the reaction was continued for 16 hours. After the reaction, the obtained particle emulsion is centrifuged and dehydrated, and dried under reduced pressure at 60° C. to obtain a dry powder, which is a reacti...

Embodiment 2

[0055] Example 2 Thermoplastically Processable Composition Using Polymerization Inhibitor (Filling and Reinforcement of Polymer Material by Reactive Filler)

[0056] Add 100g of acrylate copolymer glue on the two-roll mill, adjust the roll distance to be 0.5 millimeters, mix the glue sample for 10 minutes, then add the reactive filler 25g containing tertiary amine groups of Example 1, magnesia 3g, 3g of polyethylene glycol and 2g of anti-aging agent 2246, kneaded for 15 minutes, and thinly sliced. The obtained film was placed in a mold with a length of 135 mm, a width of 115 mm, and a thickness of 2 mm, and was thermocompressed at 160° C. for 30 minutes to obtain a filled and cross-linked film.

[0057] Re-thermoplastic processing: Cut the hot-pressed film into small pieces with a length and width of 65 mm, laminate the four layers, place them in a mold and heat-press again at 180°C for 30 minutes to obtain a continuous, smooth-surfaced re-formed film.

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Abstract

The invention relates to an application of a polymer particle with tertiary amine group on the surface as thermal reversible reactive filler which includes halogen pendant group. The polymer particle with tertiary amine group on the surface is prepared with vinyl monomer and monomer including tertiary amine group through emulsion copolymerization, wherein the monomer including tertiary amine group is chosen from vinyl pyridine and derivatives thereof as well as crylic acid dimethylamino ester and derivatives thereof. When linetype polymer material is filled with the reactive cross-linked polymer particle filler with tertiary amine group on the surface, cross-linked polymer material for filling and reinforcing is obtained without other cross-linked agents, and the cross-linked polymer material can be heated and formed. Therefore, problems that permanent cross link in polymer material and products are difficult to process and utilize again caused by traditional reactive reinforcing filler are solved, and implementation art is simple.

Description

technical field [0001] The present invention relates to the application of a crosslinkable organic polymer particle as a polymer filler containing halogen side groups, in particular to the use of polymer particles containing tertiary amino groups on the surface as a polymer containing halogen side groups. Use of reversibly reactive fillers, and compositions thereof. Background technique [0002] Polymer-micro / nano filler filled composites are widely used. Micro-nano fillers are often used to reinforce elastomers, commonly used micro-nano fillers such as carbon black, silica, silicate, clay and other mineral fillers. In terms of reactivity, fillers are divided into non-reactive fillers and reactive fillers. There is only physical interaction between non-reactive fillers and polymer materials, and no chemical reaction occurs. These fillers are carbon black, silica, clay, etc. There is a chemical reaction between the reactive filler and the polymer material to form a bond, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/08C08L25/14C08F212/08C08F220/34C08F2/22
Inventor 陈晓农耶新李波徐日炜石淑先苏志强张立群张晓军
Owner BEIJING UNIV OF CHEM TECH
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