Anti-folding stress whitening resistant polypropylene (PP) material and preparation method thereof

A stress-whitening and polypropylene technology, which is applied in the field of folding-resistant and stress-whitening polypropylene materials and their preparation, can solve the problems of whitening of products, whitening of PP materials, affecting product performance and quality, and the cost of preparation can be reduced. The effect of low and simple preparation process

Inactive Publication Date: 2010-05-19
重庆启蓝塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When polypropylene (PP) is used to manufacture products, it is easily affected by concentrated stress and produces silver streaks on the product. The expansion of silver streaks absorbs energy and causes the product to turn white. In severe cases, it will also affect the performance and quality of the product. The white problem has become a recognized pro

Method used

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  • Anti-folding stress whitening resistant polypropylene (PP) material and preparation method thereof
  • Anti-folding stress whitening resistant polypropylene (PP) material and preparation method thereof
  • Anti-folding stress whitening resistant polypropylene (PP) material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The anti-folding and anti-stress whitening polypropylene (PP) material of the present embodiment is characterized in that: it comprises the following raw materials by weight:

[0032] Copolymer polypropylene 55

[0033] POE Lc670 5

[0034] Anti-stress whitening masterbatch 5

[0035] White mineral oil 0.05

[0036] Hindered phenolic antioxidant 1010 0.1

[0037] Phosphite antioxidant 168 0.1

[0038] Calcium stearate 0.1

[0039] The self-made anti-stress whitening masterbatch includes the following ingredients by weight:

[0040] EPDM or EPR or POE 40

[0041] Nano active light CaCO3 30

[0042] Low molecular weight polyethylene sodium 0.5.

[0043] The preparation method of the above-mentioned anti-folding and anti-stress whitening polypropylene (PP) material is: according to the above-mentioned ingredients and proportioning, the ingredients are mixed through a high-speed mixer, and the CTE35 twin-screw extruder is used for production. With 9 standard temper...

Embodiment 2

[0050] The anti-folding and anti-stress whitening polypropylene (PP) material of the present embodiment is characterized in that: it comprises the following raw materials by weight:

[0051] Copolymer polypropylene 65

[0052] POE Lc670 15

[0053] Anti-stress whitening masterbatch 20

[0054] White mineral oil 0.1

[0055] Hindered phenolic antioxidant 1010 0.2

[0056] Phosphite antioxidant 168 0.2

[0057] Calcium stearate 0.2

[0058] The self-made anti-stress whitening masterbatch includes the following ingredients by weight:

[0059] EPDM or EPR or POE 48

[0060] Nano active light CaCO3 40

[0061] Low molecular weight polyethylene sodium 1.

[0062] The preparation method of the above-mentioned anti-folding and anti-stress whitening polypropylene (PP) material is produced by using a CTE35 twin-screw extruder according to the above-mentioned ingredients and proportioning ingredients. This machine has 9 sections of standard temperature control area;

[0063] Ex...

Embodiment 3

[0068] The anti-folding and anti-stress whitening polypropylene (PP) material of the present embodiment comprises the following raw materials by weight:

[0069] Copolymer polypropylene 75

[0070] POE Lc670 20

[0071] Anti-stress whitening masterbatch 30

[0072] White mineral oil 0.15

[0073] Hindered phenolic antioxidant 1010 0.3

[0074] Phosphite antioxidant 168 0.3

[0075] Calcium stearate 0.3

[0076] The self-made anti-stress whitening masterbatch includes the following ingredients by weight:

[0077] EPDM or EPR or POE 65

[0078] Nano active light CaCO3 50

[0079] Low molecular weight polyethylene sodium 2.

[0080] Preparation rights The preparation method of the anti-folding and stress-resistant whitening polypropylene (PP) material described above is produced by using a CTE35 twin-screw extruder according to the above-mentioned ingredients and proportioning ingredients, and the machine has a 9-stage standard temperature control zone;

[0081] The par...

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Abstract

The invention discloses an anti-folding stress whitening resistant polypropylene (PP) material and a preparation method thereof. The material is prepared from the following raw materials in part by weight: 55 to 75 parts of co-polypropylene, 5 to 20 parts of POE Lc670, 10 to 30 parts of stress whitening resistant master batch, 0.05 to 0.15 part of white mineral oil, 0.1 to 0.3 part of hindered phenol antioxidant 1010, 0.1 to 0.3 part of phosphite ester antioxidant 1680 and 0.1 to 0.3 part of calcium stearate. The stress whitening resistant master batch comprises the following components in part by weight: 40 to 65 parts of EPDM or EPR or POE, 30 to 50 parts of nano active light CaCO3, and 0.5 to 2 parts of sodium polyethylene with low molecular weight. The polypropylene (PP) material is prepared by using a double-screw extruder with 9 temperature control areas according to the specific process conditions. The material has the advantages of good repeated bending resistance and stress whitening resistance, simple preparation process and low preparation cost.

Description

technical field [0001] The invention relates to stress-whitening-resistant engineering plastics, in particular to a folding-resistant stress-whitening-resistant polypropylene (PP) material and a preparation method thereof. Background technique [0002] As one of the five major engineering plastics, polypropylene (PP) has good bending resistance (commonly known as white folding glue). Ethylene and other advantages, is a general-purpose thermoplastic resin material, it also has good electrical properties, high-frequency insulation and chemical corrosion resistance, and is not affected by humidity, etc., suitable for making general mechanical parts, corrosion-resistant parts and insulating parts , Widely used in glass assembly industry, automobile industry, electronics, electrical industry, industrial machinery parts, optical discs, packaging, computers and other office equipment, medical and health care, film, leisure and protective equipment and other fields. [0003] With t...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/00C08L23/16C08K13/02C08K3/26B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/40B29C48/9185B29C2948/9259B29C2948/926B29C2948/92828B29C2948/92866B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 姚富姚泽敏
Owner 重庆启蓝塑料有限公司
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