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Method for preparing compatilizer system by using polyphenyl ether as base material

A technology of polyphenylene ether and compatibilizer, which is applied in the field of preparation of compatibilizer system, can solve the problems of poor fluidity, easy cracking and large internal stress of products in PPO processing, and achieve the effect of perfect continuous production operation

Active Publication Date: 2011-04-13
NINGBO NENGZHIGUANG NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are poor fluidity for pure PPO processing, and it is easy to oxidize, discolor and become brittle, and the product has large internal stress and is easy to crack

Method used

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  • Method for preparing compatilizer system by using polyphenyl ether as base material
  • Method for preparing compatilizer system by using polyphenyl ether as base material
  • Method for preparing compatilizer system by using polyphenyl ether as base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (the flow chart adds MAH earlier, and then accelerator, and it is like this in the embodiment)

[0048] (1) Preparation of grafted transparent mixture

[0049] Weigh 4 parts of maleic anhydride (MAH) and methyl ethyl ketone in proportion, stir and dissolve, add 1 part of caprolactam (CALA), stir and dissolve, then add 0.20 parts of accelerator (DTBH), and stir to form a transparent mixed solution;

[0050] Weigh 4 parts of maleic anhydride (MAH) and methyl ethyl ketone in proportion, stir and dissolve, then add 0.20 parts of accelerator (DTBH), and stir to form a transparent mixed solution;

[0051] (2) 100 parts of PPO after drying at 95-100°C for 3-4 hours, add to the mixer to mix and disperse;

[0052] (3) Gradually (spray) the transparent mixture into the mixer, and control it to mix evenly at 60°C;

[0053] (4) Add the mixed material into the feed hopper of the reaction extrusion pelletizer material, input the extruder through the metering screw, and carry out th...

Embodiment 2

[0066] (1) Preparation of grafted transparent mixture

[0067] Weigh 4 parts of maleic anhydride (MAH) and methyl ethyl ketone in proportion, stir and dissolve, then add 0.20 parts of accelerator (DTBH), and stir to form a transparent mixed solution;

[0068] (2) 100 parts of PPO after drying at 90-100°C for 3-4 hours, add to the mixer to mix and disperse;

[0069] (3) Gradually (spray) the transparent mixture into the mixer, and control it to mix evenly at 60°C;

[0070] (4) Add the mixed material into the feed hopper of the reaction extrusion pelletizer material, input the extruder through the metering screw, and carry out the blending reaction extrusion pelletization at 170-260°C to obtain the corresponding PPO Compatibilizer system: PPO-g-MAH.

[0071] The extrusion temperature of the extruder is 170-180°C in zone 1, 180-190°C in zone 2, 195-205°C in zone 3, 215-235°C in zone 4, 245-255°C in zone 5, 255-260°C in zone 6, and 255-260°C in zone 7. 250-260°C, die head 250-2...

Embodiment 3

[0082] (1) Preparation of grafted transparent mixture

[0083] Weigh 4 parts of maleic anhydride (MAH) and methyl ethyl ketone in proportion, stir and dissolve, then add 0.20 parts of accelerator (DTBH), and stir to form a transparent mixed solution;

[0084] (2) Add 50 parts of PPO and 50 parts of SEBS after drying at 90-100°C for 3-4 hours into the mixer for mixing and dispersing;

[0085] (3) Gradually (spray) the transparent mixture into the mixer, and control it to mix evenly at 60°C;

[0086] (4) Add the mixed material into the feed hopper of the reaction extrusion pelletizer material, input the extruder through the metering screw, and carry out the blending reaction extrusion pelletization at 170-260°C to obtain the corresponding PPO Compatibilizer system: PPO-g-MAH.

[0087] The extrusion temperature of the extruder is 170-180°C in zone 1, 180-190°C in zone 2, 195-205°C in zone 3, 215-235°C in zone 4, 245-255°C in zone 5, 255-260°C in zone 6, and 255-260°C in zone 7....

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Abstract

The invention relates to a method for preparing a toughening compatilizer system by using polyphenyl ether as a base material, which comprises the following steps: (1) weighing maleic anhydride and butanone in proportion, and stirring and dissolving the maleic anhydride and the butanone, or adding a second monomer (caprolactam), and stirring and dissolving the second monomer, then adding an accelerating agent to the mixture, and stirring the mixture into a transparent mixed solution; (2) evenly mixing PPO or the PPO and a modifying material (SEBS) which are weighed in proportion in a mixer; and (3) adding the transparent mixed solution into the mixer, then mixing the mixtures evenly, and adding the well-mixed material into a hopper of a reactive extrusion dicing cutter to perform blending reaction and extrusion grain-sized dicing by a metering input extruder at a temperature of between 200 and 260 DEG C so as to obtain a corresponding PPO compatilizer system; and (4) using PPO-g-MAH or PPOg-(MAH-Co-CALA) and SEBS-g-(MAH-Co-St) or SEBS-g-MAH in the PPO compatilizer system, adding an auxiliary agent, and mixing the materials in proportion to prepare a compound toughening compatilizer system which is sued for PPO toughening alloy.

Description

technical field [0001] The invention belongs to the field of preparation of reaction-grafted compatibilizers, in particular to a preparation method of a compatibilizer system with PPO as a base material. Background technique [0002] The mechanical strength of PPO is the first among the five major engineering plastics, and its heat resistance and service temperature are higher than those of PA, PC, POM and polyester. Its disadvantages are poor fluidity for pure PPO processing, and it is easy to oxidize, discolor and become brittle, and the product has large internal stress and is easy to crack. [0003] Therefore, since its birth, it has hardly been used alone. It is mainly used to modify PPO by blending with copolymers, glass fiber reinforcement, filling reinforcement, plasticization and other methods. Among them, blending with polymers is the earliest alloy with styrene system polymers whose solubility parameters are close. [0004] The development of PPO alloys between ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/06C08F283/08C08K5/01C08K5/134C08K5/12C08L71/12C08G65/48C08K5/523C08F291/00C08K5/11C08K5/526C08L51/08
Inventor 张发饶
Owner NINGBO NENGZHIGUANG NEW MATERIALS TECH