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Polypropylene resin composition with anti-scratch characteristics

A technology of polypropylene resin and composition, which is applied in the field of propylene resin composition, and can solve problems such as flexural modulus decrease and impact performance increase

Inactive Publication Date: 2006-09-06
SAMSUNG TOTAL PETROCHEMICALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when trying to further improve the scratch resistance characteristics according to the method, the additionally used inorganic material also increases the impact performance, causing a problem of a decrease in the flexural modulus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The resin composition was prepared by adding aluminosiloxane masterbatch (NEO PP4100P) to high crystalline polypropylene (PP-1) and mixing them together in an extruder. Then, the resulting composition was dried in an oven at 80° C. for 3 hours in consideration of a decrease in physical properties due to water absorption. Using the dried composition, an injection molding machine FCM-140 manufactured by Samsung-Klockner having a clamping force of 140 tons was used to prepare a test piece for testing appearance. Injection molding was carried out at an injection temperature of 180 / 200 / 200 / 200 / 200° C. from the feed hopper to the nozzle, an injection pressure of 60-100 bar. The gloss of the prepared sample for testing appearance is measured with a gloss meter according to ASTM D1003 as the 60° gloss value.

[0020] The scratch performance was measured by installing a scratch needle on a weight having a differently changed load and measuring the degree of change according to ...

Embodiment 2

[0022] Samples for testing appearance and physical properties were prepared in the same manner as in Example 1, except that the content of the aluminosiloxane masterbatch was 2.5% by weight. Then, its physical properties were measured by the same methods as in Example 1. The results are shown in Table 1 below.

Embodiment 3

[0030] The resin composition was prepared by feeding the ingredients shown in Table 2 below into an extruder at one time and mixing them together. Then, the resulting composition was dried in an oven at 80° C. for 3 hours in consideration of a decrease in physical properties due to water absorption. Using the dried composition, an injection molding machine FCM-140 manufactured by Samsung-Klockner having a clamping force of 140 tons was used to prepare a test piece for testing appearance. Injection molding was carried out at an injection temperature of 180 / 200 / 200 / 200 / 200° C. from the feed hopper to the nozzle, an injection pressure of 60-100 bar. The scratch performance was measured using a test piece for testing the appearance by installing a scratch pin on a weight having a differently varying load and measuring the degree of change according to the load change. The results are shown in Table 2 below.

[0031] In addition, a resin composition of high crystalline polypropyl...

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Abstract

The present invention provides a propylene resin composition having excellent anti-scratch characteristic. Specifically, provided is a polyolefin resin composition comprising a high crystalline polypropylene resin, a rubber component, an inorganic filler and an aluminosiloxane masterbatch, with excellent damage resistance such as anti-scratch characteristic thereby giving very low surface damage, excellent heat resistance, good rigidity and impact properties and injection moldability, for car interior or exterior parts.

Description

technical field [0001] The present invention relates to an acrylic resin composition having excellent scratch resistance properties. Specifically, the present invention provides a polyolefin resin composition comprising a highly crystalline polypropylene resin, a rubber component, an inorganic filler, and an aluminosiloxane masterbatch for automotive interior or exterior parts, the polyolefin The resin composition has excellent damage resistance, such as anti-scratch properties, thereby causing very low surface damage; excellent heat resistance; good rigidity and impact properties, and injection moldability. Background technique [0002] In the automotive industry, as weight reduction and performance improvement of plastic materials are continuously achieved, there is a continuously increasing demand for using such plastic materials for various automotive parts. Among various plastic materials, the demand for polyolefin materials, in particular, is rapidly increasing compar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08K3/34C08L23/06C08L21/00
CPCC08L23/0815C08L2205/035C08J3/226C08J2423/00C08L23/06C08L23/142C08L23/14C08L2205/03C08L2205/02C08L2666/02C08J3/22C08K5/098
Inventor 林栽坤刘永成曹再焕许万生
Owner SAMSUNG TOTAL PETROCHEMICALS CO LTD
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