Strengthened and toughened polypropylene composite and its preparing process

A composite material and polypropylene technology, applied in the field of polypropylene/elastomer/inorganic particle ternary composite material and its preparation, can solve problems such as the influence of processing performance and use performance, achieve simple processing operation, reduce production cost, improve cost-effective effect

Inactive Publication Date: 2003-01-15
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This negatively affects the processability and usability of the final product

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific examples.

[0015] Table 1 and Table 2 are respectively the component distribution ratio of each embodiment of the present invention and the mechanical properties and thermal properties-crystallization behavior parameters of the product. The preparation process of each embodiment is as described above.

[0016]

[0017] The results in Table 1 show that: PP / POE / BaSO 4 The impact strength of the ternary system has been greatly improved, and the modulus and toughness have reached a better balance, which solves the problem of poor toughness of pure PP. Illustrate that the present invention makes PP / POE / BaSO with good comprehensive mechanical properties and reasonable performance-price ratio with a simple method 4 Ternary composite materials.

[0018]

[0019] Table 2 results show that: (1) BaSO 4 The three components of PP, POE, and MPOE all play a heterogeneous nuclea...

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Abstract

A three-element composition is prepared from polypropene (PP) (72-91 wt%), POE or MPOE (1-13) and BaSO4 (7-20) through mixing, stirring, kneading and extruding out. Its advantages are high impact strength, high toughness, high P/C ratio, high resistance to thermal or ultraviolet ageing, and low cost.

Description

[0001] Technical Field The present invention relates to a polypropylene / elastomer / inorganic particle ternary composite material and a preparation method thereof. Background technique [0002] Since the 1980s, people have used elastomers and inorganic particles in the modification of polypropylene (PP) to form a ternary composite system of PP / elastomer / inorganic particles. , in order to obtain a composite material with both toughness and rigidity. Commonly used elastomers are: EPM, EPDM, SBS. The research results show that only when the content of elastomer is above 20% in these composite systems, the impact strength can be greatly improved. This reduces the performance / price ratio of the composite. CaCO in inorganic particles 3 BaSO 4 It has a toughening effect on PP, but this toughening effect can only be reflected when they are added in a large amount. This negatively affects the processability and usability of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/30C08L23/12
Inventor 曾汉民王坷徐布衣曾斌吴景深
Owner SUN YAT SEN UNIV
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