Metal oxide supported beta-crystal nucleating agent and preparation method of beta-crystal nucleating agent

A technology of crystal nucleating agent and oxide, which is applied in the field of metal oxide-supported β crystal nucleating agent and its preparation, can solve the problems of poor PP compatibility, low nucleation efficiency, low heat resistance, etc., and achieve cost Reduced, simple preparation process, improved yield strength and modulus

Inactive Publication Date: 2009-11-18
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing β-crystal nucleating agents have problems such as high cost, low nucleation efficiency, low heat resistance, poor compatibility with PP, and easy coloring of products.

Method used

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  • Metal oxide supported beta-crystal nucleating agent and preparation method of beta-crystal nucleating agent
  • Metal oxide supported beta-crystal nucleating agent and preparation method of beta-crystal nucleating agent
  • Metal oxide supported beta-crystal nucleating agent and preparation method of beta-crystal nucleating agent

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Embodiment 1

[0029] After dissolving the aliphatic dicarboxylic acid in acetone, mixing it with calcium oxide at room temperature, and volatilizing the acetone at room temperature, the supported β-crystal nucleating agent of this embodiment is prepared.

[0030] Table 1 shows the component distribution ratio and polypropylene β-crystal content of the supported β-crystal nucleating agent in this embodiment.

Embodiment 2

[0032] After dissolving the aliphatic dicarboxylic acid in acetone, mixing it with barium oxide at room temperature, and volatilizing the acetone at room temperature, the supported β-crystal nucleating agent of this embodiment is prepared.

[0033] Table 1 shows the component distribution ratio and polypropylene β-crystal content of the supported β-crystal nucleating agent in this embodiment.

Embodiment 3

[0035] After dissolving the aliphatic dicarboxylic acid in acetone, mixing it with zinc oxide at room temperature, and volatilizing the acetone at room temperature, the supported β-crystal nucleating agent of this embodiment is prepared.

[0036] Table 1 shows the component distribution ratio and polypropylene β-crystal content of the supported β-crystal nucleating agent in this embodiment.

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Abstract

The invention discloses a metal oxide supported beta-crystal nucleating agent and a preparation method of the beta-crystal nucleating agent. The nucleating agent is prepared by mixing fatty dicarboxylic acid and the metal oxide according to the weight ratio of the fatty dicarboxylic acid to metal oxide being 1:5-1,000. The beta-crystal nucleating agent takes the metal oxide as a carrier to make the fatty dicarboxylic acid highly disperse on the surface of the metal oxide and make formed effective nucleating points increase, thereby improving the nucleating efficiency of the beta-crystal nucleating agent; and the preparation method is simple, reduces the usage of the fatty dicarboxylic acid at the same time, and remarkably reduces the cost of the beta-crystal nucleating agent. The beta-crystal nucleating agent takes the metal oxide as the carrier, has the functions of strengthening and toughening polypropylene, improves the yield strength and modulus of beta-crystal polypropylene, and enables the prepared beta-crystal polypropylene to be more beneficial to producing expanded films and other materials.

Description

technical field [0001] The invention belongs to the technical field of preparation of additives for polymer materials, and in particular relates to a metal oxide-loaded β-crystal nucleating agent and a preparation method thereof. Background technique [0002] β-crystalline polypropylene is a new type of polypropylene. In addition to maintaining the good comprehensive properties of α-PP, it also has several times the impact strength of α-PP compared with α-PP, and has a higher heat distortion temperature. Increased amplitude, low tensile yield strength and tensile elastic modulus, high toughness and ductility under high-speed stretching, and obvious strain hardening. It will have a wide range of applications in industrial pipelines, battery casings, membranes, microporous membranes and microporous fibers for gas exchange. [0003] At present, adding β-crystal nucleating agent is the most effective way to obtain high-content β-crystal polypropylene. So far, β-crystal nucleat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/22C08K5/092C08L23/12
Inventor 麦堪成章自寿王春广
Owner SUN YAT SEN UNIV
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