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Anti-sticking polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, applied in the field of polypropylene composite materials and its preparation, can solve the problems of precipitation, migration material surface, polypropylene incompatibility, etc., and achieve simple preparation process, excellent physical and mechanical properties, and low cost Effect

Inactive Publication Date: 2011-08-03
SUZHOU RUNJIA ENGINEER PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In U.S. Patent No. 4,080,359, a kind of alkyl 3,5-di-tert-butyl-4-hydroxyl-carboxylated cinnamic acid and dialkylthiodipropionate acetate mixture is adopted to solve the problem of modified polymer Some stabilizers added to propylene materials are incompatible with polypropylene and migrate to cause the problem of precipitation on the surface of the material

Method used

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  • Anti-sticking polypropylene composite material and preparation method thereof
  • Anti-sticking polypropylene composite material and preparation method thereof
  • Anti-sticking polypropylene composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038]After dry mixing 67% of polypropylene, 20% of talc, 10% of POE, 2% of SEBS, 0.5% of heat stabilizer DSTP, 0.3% of antioxidant 1010, and 0.2% of antioxidant 168 in a high-speed mixer for 3-5 minutes , and then melt-extruded and granulated in a twin-screw extruder. The conditions are: 180-190°C for the first zone, 200-210°C for the second zone, 200-210°C for the third zone, 210-215°C for the fourth zone, and 210-215°C for the fifth zone. zone 210-215°C, zone six 210-215°C, zone seven 215-225°C, zone eight 215-225°C, zone nine 215-225°C, zone ten 215-225°C, residence time 1-2 minutes, pressure It is 12-18MPa.

Embodiment 2

[0040] Dry mix polypropylene 66%, talcum powder 20%, POE8842 10%, SEBS 3%, heat stabilizer DSTP 0.5%, antioxidant 1010 0.3%, antioxidant 168 0.2% in a high-speed mixer for 3-5 minutes Afterwards, melt extrusion and granulation in a twin-screw extruder, the conditions are: 180-190°C in the first zone, 200-210°C in the second zone, 200-210°C in the third zone, 210-215°C in the fourth zone, The fifth zone is 210-215°C, the sixth zone is 210-215°C, the seventh zone is 215-225°C, the eighth zone is 215-225°C, the ninth zone is 215-225°C, the tenth zone is 215-225°C, and the residence time is 1-2 minutes. The pressure is 12-18MPa.

Embodiment 3

[0042] Mix 65% polypropylene, 20% talc, 10% POE8842, 4% SEBS, 0.5% heat stabilizer DSTP, 0.3% antioxidant 1010, and 0.15% antioxidant 168 in a high-speed mixer for 3-5 minutes Afterwards, melt extrusion and granulation in a twin-screw extruder, the conditions are: 180-190°C in the first zone, 200-210°C in the second zone, 200-210°C in the third zone, 210-215°C in the fourth zone, The fifth zone is 210-215°C, the sixth zone is 210-215°C, the seventh zone is 215-225°C, the eighth zone is 215-225°C, the ninth zone is 215-225°C, the tenth zone is 215-225°C, and the residence time is 1-2 minutes. The pressure is 12-18MPa.

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Abstract

The invention relates to an anti-sticking polypropylene composite material which comprises the following components by weight percent: 38-98% of polypropylene, 0-30% of inorganic ore powder, 0-25% of flexibilizer, 1-5% of anti-sticking agent, 0.1-1.0% of heat oxygen stabilizer DSTP, 0.1-1.0% of antioxidant 1010 and 0.1-0.5% of antioxidant 168. The invention also relates to a preparation method of the anti-sticking polypropylene composite material. The preparation method comprises the following steps: (1) weighing raw materials in weight proportion; (2) mixing the raw materials; and (3) carrying out melt extrusion and granulation. According to the invention, the anti-sticking agent is added in the material formula, thus the prepared composite material has the advantages of anti-sticking property and excellent various physical and mechanical properties; and the method has the advantages of simplicity and low cost.

Description

technical field [0001] The invention relates to a polypropylene composite material and a preparation method thereof, more particularly to an anti-adhesive polypropylene composite material and a preparation method of the polypropylene composite material. Background technique [0002] Polypropylene resin has excellent properties, such as low density, high strength, good high temperature resistance, and its low price, economy, etc. The above properties make it widely used in the automobile industry, and the amount used in automobiles can be Up to 30-50kg, involving dozens of parts, mainly body interior parts, ventilation and heating system parts, engine-related parts and exterior parts. Especially for automotive interior systems, although polypropylene materials can meet the corresponding requirements in terms of performance, when the car is used at a higher temperature (such as in summer or in a desert area), the surface of the polypropylene interior material may be damaged. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/16C08L53/02C08K13/02C08K13/04C08K3/34C08K3/26C08K7/08B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 翁永华汪理文丁贤麟
Owner SUZHOU RUNJIA ENGINEER PLASTIC
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