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Preparation method of acrylate polymer/montmorillonite composite particles for toughening makrolon

A technology of acrylate and polycarbonate, which is applied in the field of preparation of acrylate polymer/montmorillonite composite particles for polycarbonate toughening, and can solve the problems of poor processing performance and decreased tensile strength of the blend

Active Publication Date: 2016-03-16
天津瑞宏汽车配件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to aim at the need to add more than 10% rubber elastomer modifier to the toughening of polycarbonate matrix resin at present, just can make its notched impact strength reach the use requirement, this will reduce the tensile strength of polycarbonate by 15% % or more, the processing performance of the blend deteriorates, and a method for preparing polycarbonate toughening acrylate polymer / montmorillonite composite particles is provided

Method used

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  • Preparation method of acrylate polymer/montmorillonite composite particles for toughening makrolon
  • Preparation method of acrylate polymer/montmorillonite composite particles for toughening makrolon
  • Preparation method of acrylate polymer/montmorillonite composite particles for toughening makrolon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] a. Pre-emulsification of seed monomer

[0047] First, add 0.71g of anionic emulsifier sodium dihexyl adipate sulfonate and 150g of deionized water into a 500ml four-neck flask, and mix and stir for 30 minutes; then add 12g of 2-ethyloctyl acrylate to the reactor The monomer and 0.04g of cross-linking agent 1,4-butanediol diacrylate were placed on an electromagnetic stirrer and stirred for 20 minutes to obtain a seed monomer pre-emulsion for later use;

[0048] b. Pre-emulsification of monomers in the growth phase of the nuclear layer

[0049] Add 2.13g of anionic emulsifier sodium dihexyl adipate sulfonate, 168g of 2-ethyloctyl acrylate monomer and 0.85g of crosslinking agent 1,4-butanediol diacrylate into a 400ml beaker, then Place it on an electromagnetic stirrer and mix and stir for 20 minutes to obtain a monomer pre-emulsion in the growth stage of the nuclear layer, which is set aside;

[0050] c. Pre-emulsification of the outer monomer

[0051] Add 0.40g of anio...

Embodiment 2～9

[0083] The other steps are the same as in Example 1, but the changes in the quality of emulsifier 1 at the seed stage in step a, the quality of montmorillonite in step d and the quality of emulsifier 2 used in Examples 2 to 9 are shown in Table 1.

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Abstract

The invention discloses a preparation method of acrylate polymer / montmorillonite composite particles for toughening makrolon. The preparation method comprises the steps that emulsifier dosage at a seed stage and a polymeric monomer of an elastomer are selected, a seed emulsion polymerization technology is utilized, the elastomer at the seed stage is prepared, the growth of particle size of the elastomer and the in-situ coating of a plastic outer layer are realized, an adding mode of an initiator is regulated, then emulsified montmorillonite dispersion liquid is added into emulsion, so that montmorillonite layers are uniformly dispersed among emulsion particles, and acrylate polymer / montmorillonite composite particles are obtained by demulsification. 1.96 percent of acrylate polymer / montmorillonite composite particles are blended with makrolon, the notch impact strength of a composite material at low temperature is increased by 3 times compared with that of purified makrolon, meanwhile the tensile strength of the composite material is increased by 1 time or more compared with that of the purified markrolon, and the aims of toughening and enhancing at the same time are realized.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a preparation method of acrylate polymer / montmorillonite composite particles for polycarbonate toughening. Background technique [0002] Polycarbonate is one of the five major engineering plastics, and its output and consumption are second only to polyamide, ranking second. The most commonly used polycarbonate is bisphenol A type, which contains a large number of benzene ring structures in its molecule, its molecular chain is relatively rigid, it is not easy to crystallize, and its glass transition temperature is high. The characteristics of its molecular chain structure determine that it has many excellent properties, such as high impact strength, good creep resistance and dimensional stability, heat resistance, transparency, low water absorption, non-toxic, and excellent dielectric properties. It is widely used in electronics, automobiles, medical equipment, constr...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F222/14C08F220/14C08F220/06C08F2/26C08K3/34C08L69/00C08L33/08
CPCC08F2/26C08F220/18C08F220/1808C08K3/346C08L69/00C08L33/08C08F220/14C08F222/102C08F220/06
Inventor 瞿雄伟徐晨耿佩佩李国华姚艳梅
Owner 天津瑞宏汽车配件制造有限公司
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