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PEB-g-MAN toughening agent, preparation method thereof and engineering plastic ABMS

A toughening agent and initiator technology, applied in the field of high-impact engineering plastics ABMS, can solve the problems of large amount of solvent, large investment in equipment, high production cost, etc., to achieve easy heat transfer, stable polymerization process, and improved compatibility Effect

Active Publication Date: 2010-03-31
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The significant disadvantage of the solution method is that the solvent consumption is large, the solvent accounts for more than 80wt% of the total mass of the polymerization system, the product needs to be precipitated with a large amount of methanol or ethanol, and the recovered waste liquid is a mixture of solvent, residual monomer and methanol or ethanol. The process of separation, purification and reuse of components is complicated, and the investment in equipment is large, resulting in high production costs

Method used

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  • PEB-g-MAN toughening agent, preparation method thereof and engineering plastic ABMS
  • PEB-g-MAN toughening agent, preparation method thereof and engineering plastic ABMS
  • PEB-g-MAN toughening agent, preparation method thereof and engineering plastic ABMS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The basic formula and implementation formula of embodiment 1 are as shown in table 1. The synthetic operation process of PEB-g-MAN when the mass ratio of AN / MMA is 5 / 95 is as follows:

[0031]A 1000mL four-neck flask was used as the reactor, equipped with a stirrer, an automatic temperature control oil bath heating device, a reflux pipe, a nitrogen pipe and a material thermometer. Add 80g of toluene and 55.00g of PEB into a four-necked flask, and dissolve at 65°C for 4-6 hours to make the system into a uniform glue. Add the mixed monomer of 2.25g AN and 42.75g MMA into the glue solution, stir for 30-70 minutes to make the system a uniform solution. Add 1.0 g of BPO and 0.126 g of SDS into the flask, and stir for 30 minutes to make them evenly mixed. Begin to drop 63g of 2wt% PVA aqueous solution into the PEB / MMA-AN solution system, the PVA aqueous solution was added dropwise within 20 to 30 minutes, during which the stirring speed was slowly increased to 800 to 1200 r...

Embodiment 2

[0055] Table 2 (b) The relationship between the PEB / MMA-AN mass ratio of Example 2 and the CR, GR, GE and ABMS notched impact strength of the graft system

[0056]

[0057]

[0058] *PEB content of ABMS is 25wt% of ABMS.

Embodiment 3

[0061] Table 3 (b) The relationship between the amount of BPO in Example 3 and the CR, GR, GE and ABMS notched impact strength of the graft system

[0062]

[0063]

[0064] *PEB content of ABMS is 25wt% of ABMS.

[0065] Table 4 (a) embodiment 4 formula and reaction condition

[0066]

[0067] Table 4 (b) the relationship between the amount of solvent in Example 4 and the CR, GR, GE and ABMS notched impact strength of the graft system

[0068]

[0069]

[0070] *PEB content of ABMS is 25wt% of ABMS.

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Abstract

The invention discloses a PEB-g-MAN toughening agent, a preparation method thereof and an engineering plastic ABMS. The invention discloses a method for preparing a PEB-g-MAN toughening agent by using a suspension grafting copolymerization method. The method comprises that: an ethylene-1-butylene copolymer is used as a grafting matrix, methyl methacrylate and vinyl cyanide are used as grafting monomers, and a PEB-g-MAN grafting copolymer of which PEB content is between 52.8 and 71.8 percent by weight is prepared by using suspension grafting copolymerization technology in the presence of an organic solvent. The monomer transformation rate of a grafting copolymer system reaches 80 to 95 percent. The synthesized PEB-g-MAN and SAN resin are mixed together to prepare the engineering plastic ABMS with excellent weather resistance, ageing resistance and yellowing resistance and high impact resistance, wherein the gap impact strength of the ABMS is between 10.5 and 63.1 kJ / m<2>.

Description

technical field [0001] The invention relates to a method for synthesizing PEB-g-MAN and blending PEB-g-MAN with SAN resin to prepare high-impact engineering plastic ABMS with excellent weathering resistance and yellowing performance and high gloss. Background technique [0002] AES is a high-impact engineering plastic with excellent resistance to weathering and yellowing. It is prepared by melt blending EPDM-g-SAN and SAN resin. AES engineering plastics are widely used in the manufacture of automobile and motorcycle accessories, fishing gear, fishing and agricultural turnover boxes, suitcases, etc. Due to its excellent weather resistance, it is also widely used in the manufacture of outdoor products such as housing exterior wall covers, doors and windows, billboards, and swimming pool decorative layers. AES engineering plastics technology has remarkable economic benefits, and has been industrialized on a large scale in the United States, Germany, Japan and other countries. ...

Claims

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Application Information

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IPC IPC(8): C08F255/10C08F2/20C08L25/12C08L51/06
Inventor 王炼石朱勇平吴敌蔡彤旻张安强曾祥斌
Owner KINGFA SCI & TECH CO LTD
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