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Diatomite modified by polyaryletherketone containing boric m-benzene and reinforced polyether-ether-ketone composite material thereof

A technology of phenylene polyarylether ketone and phenylene polyarylether ketone coupling agent, which is applied in the field of polymer composite materials, and can solve the problems that the modification effect cannot be achieved, and the coupling agent is easy to decompose, etc.

Inactive Publication Date: 2016-10-26
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing temperature of polyether ether ketone is above 360°C, the above-mentioned coupling agent is easy to decompose at high temperature, and cannot achieve a good modification effect
There is no report on the preparation of polyetheretherketone / diatomite composites using boric acid-containing m-phenylene polyaryletherketone modified diatomite

Method used

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  • Diatomite modified by polyaryletherketone containing boric m-benzene and reinforced polyether-ether-ketone composite material thereof
  • Diatomite modified by polyaryletherketone containing boric m-benzene and reinforced polyether-ether-ketone composite material thereof
  • Diatomite modified by polyaryletherketone containing boric m-benzene and reinforced polyether-ether-ketone composite material thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Preparation of boric acid-containing m-phenylene polyaryletherketone coupling agent modified diatomite

[0030] (1) Taking 4 wt% of boric acid-containing m-phenylene polyarylether ketone as an example, weigh 100g of diatomaceous earth, put it into a 1000mL beaker, add 500mL of distilled water, drop the concentrated sulfuric acid with a mass fraction of 98% with a dropper, adjust The pH value is 2, stirred for 1 hour, and suction filtered; then the suction filtered product is washed 3 times with water and acetone respectively to remove impurities, dried at a constant temperature of 80°C for 8 hours in vacuum, and set aside;

[0031] (2) Weigh 4g of boric acid-containing m-phenylene polyaryletherketone coupling agent, add it into a 1000mL three-necked flask containing a stirrer, add 500mL of chloroform, stir, and wait for it to completely dissolve;

[0032] (3) Weigh 96 g of acid-treated diatomite and add it to the above solution, stir at room temperature for 8 h...

Embodiment 2

[0035] Example 2: Preparation of diatomite-reinforced polyether ether ketone composite material (taking diatomite content as 20wt% and the amount of hydroquinone added in in-situ polymerization as 0.5mol as an example)

[0036] (1) Preparation of diatomite suitable for in-situ polymerization: Weigh 100g of diatomite, put it into a 1000mL beaker, add 500mL of distilled water, drop in concentrated sulfuric acid with a mass fraction of 98% with a dropper, adjust the pH value to 2, Stir for 2 hours, then filter with suction; then wash the filtered product with water and acetone for 3 times, remove impurities therein, dry in vacuum at 80°C for 8 hours, and set aside;

[0037] (2) Weigh 36.12 g of diatomite and 520.32 g of diphenyl sulfone which were treated with dilute sulfuric acid and dried for later use, and then add diphenyl sulfone and diatom earth to the reaction device in turn, vacuumize and pass nitrogen, and then alternately carry out 3 times . The rest of the feeding amo...

Embodiment 3

[0039] Example 3: Preparation of boric acid-containing m-phenylene polyaryletherketone modified diatomite reinforced polyetheretherketone composite material, with the content of diatomite modified in Example 1 as 20wt%, adding hydroquinone during polymerization The amount is 0.5mol as an example)

[0040] (1) Weigh 510.32g of diphenyl sulfone, add it to a 3000mL three-necked flask, heat it under nitrogen gas to dissolve it, and then add Na 2 CO 3 56.48g, K 2 CO 3 3.20g, 110.23g (0.505mol) of 4,4'-difluorobenzophenone, 55.06g (0.5mol) of hydroquinone, 150mL of xylene, after the reaction was carried out for 8 hours, after the viscosity of the system increased, add 4 , 1.1g of 4'-difluorobenzophenone was capped and then added 36.63g of boric acid-containing m-phenylene polyaryletherketone coupling agent-modified diatomite prepared in Example 1 (see the patent "a silicon Alite / polyetheretherketone composite material and its preparation method, CN104559048A"), the raw materia...

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Abstract

The invention relates to diatomite modified by polyaryletherketone containing boric m-benzene and a reinforced polyether-ether-ketone composite material thereof, and belongs to the technical field of polymer composite materials. Based on the equation that the sum of proportions of all the components is 100%, the diatomite modified by polyaryletherketone containing boric m-benzene is prepared from 94-98 wt% of diatomite treated with acid and the balance a coupling agent of polyaryletherketone containing boric m-benzene. Under the activating temperature, the diatomite is modified with polyaryletherketone containing boric m-benzene, and the composite material is prepared in the mode similar to in situ polymerization; by adding the coupling agent of polyaryletherketone containing boric m-benzene, the interface interaction between the diatomite and the polyether-ether-ketone can be improved, and mechanical properties of the composite material can be further promoted. Plastifying, melting, injecting, mold filling, cooling and forming and demolding are carried out on the obtained composite material particles through a high-temperature injection molding machine to obtain composite material samples in corresponding shapes.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a boric acid-containing m-phenylene polyaryletherketone modified diatomite and its reinforced polyetheretherketone composite material. Background technique [0002] Diatomaceous earth is mainly formed by the long-term deposition of the protective layer skeleton outside the diatoms, and its chemical composition is mainly amorphous SiO 2 , usually with SiO 2 ·nH 2 O to indicate that its mineral composition is protein and its variants. Because diatomite has the characteristics of large porosity, strong adsorption, stable chemical properties, light weight, small bulk density, good heat insulation, low refractive index, good dispersion and suspension, good wear resistance and electrical insulation, etc., Therefore, it is widely used in various aspects of daily life such as light industry, chemical industry, and building materials. [0003] Polyether...

Claims

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Application Information

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IPC IPC(8): C08G8/02C08K9/02C08K9/04C08K3/36
CPCC08G8/02C08K3/36C08K9/02C08K9/08
Inventor 张海博谭捷刘一凡丁连俊
Owner JILIN UNIV
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