Impact-resistant high-melt-index high-rigidity polypropylene composite material

A composite material, polypropylene technology, applied in the field of impact-resistant, high-melt index, and high-rigidity polypropylene composite materials, it can solve the problems that polypropylene's high melt index, high rigidity and impact resistance cannot be satisfied at the same time, and achieve high fluidity, durability Excellent impact performance and high melt index effect

Inactive Publication Date: 2015-01-21
SICHUAN GLARY ASIA PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the existing technical deficiencies, the present invention provides an impact-resistant, high-melt index, and high-rigidity polypropylene composite material, which solves the shortcomings of traditional polypropylene that high melt index, high rigidity, and impact resistance cannot be satisfied at the same time

Method used

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  • Impact-resistant high-melt-index high-rigidity polypropylene composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Prepare the raw materials of each mass parts shown in the following table 1:

[0024] Table 1

[0025] raw material name

parts by weight

K7726

12

K7760

53

filling enhancer

20

Toughener

15

coupling agent

0.2

Nucleating agent

0.2

lubricant

0.5

antioxidant

0.3

[0026] In Table 1, K7726 is the medium melt index copolymer polypropylene produced by Sinopec Yanshan Branch, and its melt index is 30g / 10min; K7760 is the high melt index copolymer polypropylene produced by Sinopec Yanshan Branch, and its melt index is 60g / 10min; The filling enhancer is a mixture of ultrafine talc powder and fine talc powder with a mass ratio of 7:3, wherein the particle size of the ultrafine talc powder is D50=1.2 microns, D95=3.8 microns, and the loss after burning at 800°C for 2 hours rate≤3%, the particle size of fine talc powder is D50=3.0 microns, loss rate≤6% after burning at 800°C...

Embodiment 2

[0030] Prepare the raw materials of each mass parts shown in the following table 2:

[0031] Table 2

[0032] raw material name

parts by weight

K7726

18

[0033] K7760

37

filling enhancer

25

Toughener

20

coupling agent

0.2

Nucleating agent

0.2

lubricant

0.5

antioxidant

0.3

[0034] The raw materials in Table 2 are the same as in Table 1 of Example 1.

[0035] The raw materials in Table 2 were processed according to the processing method of Example 1 to obtain the finished product of impact-resistant high-melting index high-rigidity polypropylene composite material.

Embodiment 3

[0037] Prepare the raw materials of each mass parts shown in the following table 3:

[0038] table 3

[0039] raw material name

parts by weight

K7726

10

K7100

55

filling enhancer

20

Toughener

15

coupling agent

0.2

Nucleating agent

0.2

lubricant

0.5

antioxidant

0.3

[0040] In Table 3, K7100 is a high-melt index copolymer polypropylene produced by Sinopec Yanshan Branch, and its melt index is 110g / 10min; other raw materials are the same as those in Table 1 of Example 1.

[0041] The raw materials in Table 3 were processed according to the processing method of Example 1 to obtain the finished product of impact-resistant high-melting index high-rigidity polypropylene composite material.

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Abstract

The invention discloses an impact-resistant high-melt-index high-rigidity polypropylene composite material. The impact-resistant high-melt-index high-rigidity polypropylene composite material is prepared from the following components in parts by weight: 10-20 parts of first polypropylene, 35-55 parts of second polypropylene, 20-25 parts of a filling and reinforcing agent, 15-20 parts of a toughening agent, 0.2 part of a coupling agent, 0.2 part of a nucleating agent, 0.5 part of a lubricating agent and 0.3 part of antioxidant, wherein the first polypropylene is medium-melt-index polypropylene, and the melt index of the first polypropylene (230 DEG C, 2.16Kg) is 25-35g per 10 minutes; the second polypropylene is high-melt-index co-polyproplene, and the melt index of the second polypropylene (230 DEG C, 2.16Kg) is 50-110g / min. Compared with the polypropylene composite material prepared by adopting the traditional technique, the impact-resistant high-melt-index high-rigidity polypropylene composite material has the characteristics of excellent impact resistance, high fluidity and high rigidity, and the three characteristics of impact resistance, high melt index and high rigidity are realized at the same time.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a polypropylene composite material with high impact resistance, high melting point and high rigidity. Background technique [0002] Polypropylene (PP) modification includes toughening modification, weather resistance modification, glass fiber reinforcement modification, mineral filling modification, flame retardant modification and super tough modification, etc. [0003] As one of the general plastic materials, polypropylene has excellent comprehensive performance, good chemical stability, good molding performance and relatively low price; but polypropylene has low strength, modulus, hardness, low temperature impact strength Poor, large molding shrinkage, easy aging and other shortcomings. Therefore, it is of great significance to modify PP so that it can adapt to the needs of products in different fields and improve the application of modified PP materials in the fields of auto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08K13/02C08K3/34
CPCC08K2201/003C08K2201/014C08L23/14C08L2205/025C08L2205/03C08L2205/24C08L2207/064C08L23/0815C08K13/02C08K3/34C08K5/544C08K5/20C08K5/1345C08K5/372
Inventor 苟凯谭江梅肖明罗虎
Owner SICHUAN GLARY ASIA PLASTIC TECH
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