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Polypropylene reinforced modifying material and preparation method thereof

A technology of toughening and modifying polypropylene, which is applied in the field of polypropylene toughening and modifying materials, can solve the problems of big odor, lack of economy, high price, etc., and achieve the effect of small odor, good mechanical properties and low cost

Active Publication Date: 2013-05-01
沈阳新歌特塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polypropylene toughened by this method has a relatively large odor due to the use of dicumyl peroxide as a vulcanizing agent.
And the price of the copolymer of elastomer ethylene and octene is relatively high. In addition, when the amount of copolymer of ethylene and octene reaches 40%, the notched impact strength of polypropylene reaches a higher level. make the product less economical

Method used

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  • Polypropylene reinforced modifying material and preparation method thereof
  • Polypropylene reinforced modifying material and preparation method thereof
  • Polypropylene reinforced modifying material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh 95g of polypropylene, 5g of toughening agent, and 0.12g of co-vulcanizing agent respectively, and add them to a torque rheometer with a temperature of 180°C and a rotating speed of 60r / min. After blending for 3min, add 0.55g of vulcanizing agent, and continue to blend Mix for 10 minutes, discharge, and quickly cut into particles with a diameter of 4 mm, which is the modified material. Table 1 lists the mechanical properties test results of the materials.

Embodiment 2

[0038] Weigh 90g of polypropylene, 10g of toughening agent, and 0.12g of co-vulcanizing agent into a torque rheometer at a temperature of 180°C and a speed of 60r / min. After blending for 3 minutes, add 0.55g of vulcanizing agent and continue blending After 10 minutes, the material is discharged and quickly sheared into particles with a diameter of 4mm, which is the modified material. Table 1 lists the mechanical properties test results of the materials.

Embodiment 3

[0040] Weigh 85g of polypropylene, 15g of toughening agent, and 0.12g of co-vulcanizing agent into a torque rheometer at a temperature of 180°C and a speed of 60r / min. After blending for 3 minutes, add 0.55g of vulcanizing agent and continue blending After 10 minutes, the material is discharged and quickly sheared into particles with a diameter of 4mm, which is the modified material. Table 1 lists the mechanical properties test results of the materials.

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Abstract

The invention relates to a polypropylene reinforced modifying material which comprises the following components in parts by weight: 100 parts of substrate, 0.25-0.7 part of vulcanized agent and 0.07-0.22 part of auxiliary vulcanized agent, wherein the substrate comprises the following components by weight percent: 75%-95% of polypropylene and 5%-25% of reinforcing agent; an ethylene-vinyl acetatecopolymer is taken as the reinforcing agent; bis(t-butylperoxy isopropyl)benzene is taken as the vulcanized agent; and sulfur is taken as the auxiliary vulcanized agent. The invention has the advantages that a high-impact-resisting modified polypropylene material is prepared, and the low-odor vulcanized agent, namely, the bis(t-butylperoxy isopropyl)benzene is adopted, so that the material is lowin odor and can be applied to the high-class fields, such as electrical equipment product, automobile parts, and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polypropylene toughening modified material. Background technique [0002] As a general-purpose plastic, polypropylene has good physical and chemical properties and low price. Its products have many varieties, large output and wide application range. Polypropylene accounts for by far the largest proportion of synthetic resins used in the auto parts industry. However, due to its disadvantages such as poor toughness, large dimensional shrinkage, aging resistance, and poor compatibility with other polar polymers and inorganic fillers, its application as structural materials and engineering plastics is limited. In order to improve the toughness of polypropylene, it is usually achieved by blending polypropylene and rubber elastomers, among which blends of polypropylene / EPDM and polypropylene / EPDM have been widely used. However, while the toughness of this modified mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/08C08K5/14C08K3/06
Inventor 夏英翁伟明贾枭王希锋赵苹郭慧敏
Owner 沈阳新歌特塑胶有限公司