High-impact low-cost PP (Propene Polymer)-SBS (styrene-butadiene-styrene block copolymer)-CaCO3 ternary composite material and preparation method thereof

A technology of PP-SBS and composite materials, which is applied in the field of polypropylene composite materials, can solve problems such as rigidity reduction, and achieve the effects of impact performance balance, rigidity balance, and comprehensive mechanical properties.

Inactive Publication Date: 2012-10-10
重庆顾地塑胶电器有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other occasions, people use elastomers to toughen PP to improve the toughness of the material and improve its low-temperature impact performance, but reduce the rigidity.

Method used

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  • High-impact low-cost PP (Propene Polymer)-SBS (styrene-butadiene-styrene block copolymer)-CaCO3 ternary composite material and preparation method thereof
  • High-impact low-cost PP (Propene Polymer)-SBS (styrene-butadiene-styrene block copolymer)-CaCO3 ternary composite material and preparation method thereof
  • High-impact low-cost PP (Propene Polymer)-SBS (styrene-butadiene-styrene block copolymer)-CaCO3 ternary composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The high-impact low-cost PP-SBS-CaCO of embodiment 1 3 In the ternary composite material, the weight percentage of PP is 56.4%, the weight percentage of SBS is 11.8%, CaCO 3 The weight percentage is 31.8%.

[0027] The high-impact low-cost PP-SBS-CaCO of this embodiment 3 The preparation method of ternary composite material, comprises the following steps:

[0028] 1) Mix and extrude part of PP and SBS to obtain PP-SBS blend masterbatch;

[0029] 2) Then the remaining PP, CaCO 3 and the PP-SBS blending master batch prepared in step 1) were mixed, extruded and granulated to obtain the ternary composite material.

[0030] In the PP-SBS blending master batch prepared in the step 1), the weight percentages of PP and SBS are 50% respectively; in the step 1) and step 2), reverse parallel twin-screw extruders are used , the extrusion temperature is 188~192℃, and the screw torque is 2500~3000Gm.

[0031] The normal temperature notched impact strength of the obtained ternar...

Embodiment 2

[0033] The high-impact low-cost PP-SBS-CaCO of embodiment 2 3 In the ternary composite material, the weight percentage of PP is 52.1%, the weight percentage of SBS is 10.4%, CaCO 3 The weight percentage is 37.5%.

[0034] The high-impact low-cost PP-SBS-CaCO of this embodiment 3 The preparation method of ternary composite material, comprises the following steps:

[0035] 1) Mix and extrude part of PP and SBS to obtain PP-SBS blend masterbatch;

[0036] 2) Then the remaining PP, CaCO 3 and the PP-SBS blending master batch prepared in step 1) were mixed, extruded and granulated to obtain the ternary composite material.

[0037] In the PP-SBS blending master batch prepared in the step 1), the weight percentages of PP and SBS are 50% respectively; in the step 1) and step 2), reverse parallel twin-screw extruders are used , the extrusion temperature is 188~192℃, and the screw torque is 2500~3000Gm.

[0038] The normal temperature notched impact strength of the obtained ternar...

Embodiment 3

[0040] The high-impact low-cost PP-SBS-CaCO of embodiment 3 3 In the ternary composite material, the weight percentage of PP is 47.6%, the weight percentage of SBS is 9.5%, CaCO 3 The weight percentage is 42.9%.

[0041] The high-impact low-cost PP-SBS-CaCO of this embodiment 3 The preparation method of ternary composite material, comprises the following steps:

[0042] 1) Mix and extrude part of PP and SBS to obtain PP-SBS blend masterbatch;

[0043] 2) Then the remaining PP, CaCO 3 and the PP-SBS blending master batch prepared in step 1) were mixed, extruded and granulated to obtain the ternary composite material.

[0044] In the PP-SBS blending master batch prepared in the step 1), the weight percentages of PP and SBS are 50% respectively; in the step 1) and step 2), reverse parallel twin-screw extruders are used , the extrusion temperature is 188~192℃, and the screw torque is 2500~3000Gm.

[0045] The room temperature notched impact strength of the obtained ternary c...

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Abstract

The invention discloses a high-impact low-cost PP (Propene Polymer)-SBS (styrene-butadiene-styrene block copolymer)-CaCO3 ternary composite material and a preparation method thereof. The high-impact low-cost PP-SBS-CaCO3 ternary composite material comprises the following components in percent by weight: 33.3-56.4 percent of PP, 6.7-11.8 percent of SBS and 31.8-60.0 percent of CaCO3. The preparation method of the high-impact low-cost PP-SBS-CaCO3 ternary composite material comprises the following steps of: 1, mixing and extruding partial PP and SBS for pelleting to prepare a PP-SBS blending master batch material; and 2, mixing and extruding the PP-SBS blending master batch material prepared by the step 1 and left PP and CaCO3 for pelleting to prepare the high-impact low-cost PP-SBS-CaCO3 ternary composite material. The high-impact low-cost PP-SBS-CaCO3 ternary composite material has the characteristics of balance of impact property and rigidity, excellent comprehensive mechanical property and low cost, is suitable for manufacturing a dual-wall corrugated pipe and a large-diameter steel and plastic composite pipe, or is used as a toughening modifying agent of common PP (such as PPH (Propene Polymer Homopolymer) and PPR (propylene random copolymer)).

Description

technical field [0001] The invention belongs to the technical field of polypropylene composite materials, in particular to a high-impact low-cost PP-SBS-CaCO 3 Ternary composite material and its preparation method. Background technique [0002] Polypropylene (PP) is a widely used general-purpose plastic, widely used as water supply pipes, such as PP-R water supply pipes, PPH water supply pipes, etc. However, this kind of water pipe material is expensive, has poor impact toughness, and brittle fractures often occur. It is urgent to improve toughness and reduce costs. [0003] Filling is usually used to reduce costs. Commonly used fillers include calcium carbonate, silicates (such as mica, asbestos, talcum powder), aluminum hydroxide, glass beads (such as fly ash, etc.) and wood powder; Calcium carbonate is cheap, white in color, low in oil absorption, can enhance the color of plastics and improve dyeability, so it is widely used as a PP filler; but the research results sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L53/02C08K9/00C08K3/26B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92533B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 付志敏赵劲松李贤梅
Owner 重庆顾地塑胶电器有限公司
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