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Modified polyolefin material and special modified resin and their preparation methods

A polyolefin and polycondensation resin technology, applied in the production of bulk chemicals, etc., can solve the problems of mechanical properties, thermal properties and stability, use restrictions, environmental protection and poor applicability of composite materials, etc.

Active Publication Date: 2009-06-10
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface treatment of inorganic materials by these technologies cannot make the inorganic particles uniformly dispersed in the polymer matrix
Or during the dispersion process, these active particles have a shear effect on the polymer chain to degrade it, and the mechanical properties, thermal properties and stability are greatly affected. Therefore, the environmental protection and applicability of the composite material are poor. heavily restricted
[0007] In the above-mentioned prior art, although various asphalt materials and composite materials thereof are disclosed, there is no report that it is used to prepare polyolefin composite materials

Method used

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  • Modified polyolefin material and special modified resin and their preparation methods
  • Modified polyolefin material and special modified resin and their preparation methods
  • Modified polyolefin material and special modified resin and their preparation methods

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1, preparation polynuclear aromatic polycondensation resin

[0024] The vacuum residue and furfural solvent were mixed at a volume ratio of 1:2, stirred at 80°C for 25 minutes, and then settled. The solution was divided into upper and lower layers. Separation with a separatory funnel, the lower layer is the extraction phase, and the aromatic-rich fraction is obtained after the solvent is removed by distillation. The physical and chemical properties of the residual oil before and after extraction are shown in Table 1.

[0025] Take 20g of the above aromatic-rich fraction, 20g of benzaldehyde, and 2g of p-toluenesulfonic acid, and mix them in a container. The condensation polymerization reaction was carried out under magnetic stirring and nitrogen protection, and the reaction temperature was 170°C. A large amount of gas is generated during the reaction, and when the system visibly becomes viscous and no bubbles are generated, the reaction is terminated to obt...

Embodiment 2

[0030] Embodiment 2, preparation polynuclear aromatic polycondensation resin

[0031] Get 20g of aromatic-rich components of Example 1, 20g of benzaldehyde, and 2.8g of p-toluenesulfonic acid, and mix them in a container. Under magnetic stirring and nitrogen protection, the condensation polymerization reaction was carried out at a temperature of 180°C. A large amount of gas is generated during the reaction, and when the system visibly becomes viscous and no bubbles are generated, the reaction is terminated to obtain the polynuclear aromatic polycondensation resin provided by the invention. The physical and chemical properties of the resin are shown in Table 2.

Embodiment 3

[0032] Embodiment 3, preparation polynuclear aromatic polycondensation resin

[0033]Take 30g of vacuum residue, without extraction, directly carry out condensation polymerization reaction with cross-linking agent benzaldehyde under the catalysis of p-toluenesulfonic acid. Benzaldehyde is 15g, and p-toluenesulfonic acid content is 4.5g, selects the reaction and stirs evenly at 200 ℃, under nitrogen protection, obtains the product that contains more light components, through solvent (acetone: the volume ratio of dehydrated alcohol is 1:1 mixed solution) to obtain the polynuclear aromatic polycondensation resin provided by the present invention (ie B-stage COPNA resin). The physical and chemical properties of the resin are shown in Table 3.

[0034] Table 3 Physicochemical properties of polynuclear aromatic polycondensation resins prepared in Examples 3-7

[0035]

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Abstract

The invention discloses a modified polyolefin material and a special modified resin thereof, as well as a method for preparing the same. The method comprises the steps of utilizing crude-oil residual oil or residual oil to prepare polynuclear aromatic resin and well mixing the residual oil, crosslinking agent and catalysts for reaction. The invention also provides a method of utilizing the resin to modify polyolefin material, which is to melt and compound polynuclear aromatic condensation resin and polyolefin or the two added with inorganic filler. The polynuclear aromatic resin powder has high surface activity, compatibility, dispersibility, ultraviolet radiation resistance and environment resistance. The polyolefin material modified by use of the resin has the advantages of good dispersibility, heat resistance, environment resistance, remarkably improved comprehensive mechanical properties and high application value.

Description

technical field [0001] The invention relates to a modified polyolefin material and its special modified resin and its preparation method, especially the polyolefin material modified with residual oil polynuclear aromatic polycondensation resin, the special resin and its preparation method. Background technique [0002] Condensed polynuclear aromatic resin (COPNA) is a thermosetting polymer material invented by Japanese scientists through condensation reaction of pure naphthalene polynuclear aromatics in the mid-1980s. Lubricity, can be used as resin substrate for carbon / carbon and carbon / plastic composite materials. Japan's Otani Sugiro (Otani Sugiro, Kobayashi Yuko, Inoue Qi. Journal of the Japanese Chemical Society, 1986, (9): 1220-1228) uses naphthalene, pyrene, etc. as raw materials, and carries out polycondensation reaction with p-xylylenedimethanol to produce COPNA is obtained, but its cost is very high, and its molecular weight and performance are not very high. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G10/02C08G61/02C08G75/00C08L23/06C08L23/12C08L27/06C08L25/06C08L55/02C08L23/16C08L61/18C08L65/00C08L81/00C08K3/36C08K3/26C08K3/34C08K9/04
CPCY02P20/52Y02P20/54
Inventor 柯扬船李京子梁吉锋
Owner CHINA NAT OFFSHORE OIL CORP
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