Toughened and modified small scale bulk powder polypropylene and preparation method thereof

A small bulk polypropylene, toughening modification technology, applied in the field of polymer materials, can solve the problems of limited toughening effect, reduction of blend modulus, strength and heat distortion temperature, without reducing tensile strength and rigidity , to achieve good toughening effect, reduce cost and research and development costs, and increase added value

Inactive Publication Date: 2016-11-16
SHANDONG YUHUANG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although rubber or elastomer can significantly increase the toughness of PP, but at the same time reduce the modulus, strength and heat distortion temperature of the blend, while rigid particles toughen PP, although the toughening effect is limite...

Method used

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  • Toughened and modified small scale bulk powder polypropylene and preparation method thereof
  • Toughened and modified small scale bulk powder polypropylene and preparation method thereof
  • Toughened and modified small scale bulk powder polypropylene and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Carry out this test by following raw material mass parts:

[0039] 1) Small body powder polypropylene (PPH075) 50 parts

[0040] Copolymerized polypropylene (PPR1003) 15 parts

[0041] 2) Toughening agent (POE8150) 25 parts

[0042] 3) Filler (white carbon black treated with KH550) 5 parts

[0043] 4) Antioxidant (1010) 1.0 parts

[0044] Antioxidant (168) 0.1 parts

[0045] 5) Lubricant (polyethylene wax) 2.0 parts

[0046] 6) Dispersant (calcium stearate) 1.0 parts

[0047] Include the following steps:

[0048] 1) Dissolve white carbon black in water and methanol (1:1) solution (mass concentration is 10%), ultrasonically oscillate for 0.5h, after stopping the oscillation, add KH550 which accounts for 3% of the mass fraction of white carbon black, continue Ultrasonic oscillation for 1 hour, then place the solution in a water bath at 70°C and heat it to reflux for 8 hours, centrifuge after stopping the reflux, and dry it in an oven at 100°C for later use;

[004...

Embodiment 2

[0054] Carry out this test by following raw material mass parts:

[0055] 1) Polypropylene (PPH075) 80 parts

[0056] Polypropylene (PPR1003) 5 parts

[0057] 2) Toughening agent (POE8150) 5 parts

[0058] 3) Filler (calcium carbonate treated with NDZ101) 6 parts

[0059] 4) Antioxidant (1010) 1.0 parts

[0060] Antioxidant (168) 0.1 parts

[0061] 5) Lubricant (polyethylene wax) 2.0 parts

[0062] 6) Dispersant (calcium stearate) 1.0 parts

[0063] Include the following steps:

[0064] 1) Add light calcium carbonate (mass concentration: 20 parts) to the toluene solvent, ultrasonically oscillate for 0.5h, stop the oscillation, add NDZ101 which accounts for 2% of the mass fraction of calcium carbonate, continue ultrasonically oscillating for 1h, and then the solution Place in a water bath at 70°C and heat to reflux for 8 hours, centrifuge after stopping the reflux, and dry in an oven at 100°C for later use;

[0065] 2) Dry the small bulk polypropylene, antioxidant, disp...

Embodiment 3

[0070] Carry out this test by following raw material mass parts:

[0071] 1) Polypropylene (PPH075) 50 parts

[0072] Polypropylene (PPR1003) 6 parts

[0073] 2) Toughening agent (POE8150) 10 parts

[0074] 3) Filler (white carbon black treated with KH550) 30 parts

[0075] 4) Antioxidant (1010) 1.0 parts

[0076] Antioxidant (168) 0.1 parts

[0077] 5) Lubricant (polyethylene wax) 2.0 parts

[0078] 6) Dispersant (calcium stearate) 1.0 parts

[0079] Experimental procedure and test method are the same as in Example 1, and the test results are shown in Table 1.

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Abstract

The invention belongs to the field of high molecular materials, and in particular relates to toughened and modified small scale bulk powder polypropylene and a preparation method thereof. The toughened and modified small scale bulk powder polypropylene is prepared from the following components in parts by mass: a base stock containing 50 to 80 parts of small scale bulk powder polypropylene, 3 to 20 parts of polypropylene copolymer and 5 to 30 parts of toughening agent, 5 to 30 parts of filler, 0.1 to 4 parts of stabilizing agent, 0.5 to 3 parts of lubricating agent, 0.5 to 4 parts of dispersing agent and 1 part of coupling agent. The filler and the coupling agent are processed, and then are centrifugally separated and oven-dried, so as to obtain a raw material A; other components are oven-dried at a temperature of 60 DEG C to 80 DEG C and are mixed with the raw material A, so as to obtain a raw material B; the raw material B is extruded and granulated to obtain a granular material C; the raw material C is uniformly mixed with the polypropylene copolymer and the toughening agent according to a proportion, and an obtained mixture is granulated to obtain a toughened and modified polypropylene granular material. A cantilever beam made from the toughened and modified small scale bulk powder polypropylene has the impact strength which can be increased by 20 times at most, and has a heat distortion temperature which can be increased by 10 DEG C.

Description

(1) Technical field [0001] The invention belongs to the field of polymer materials, in particular to a toughened and modified small-body powder polypropylene and a preparation method thereof. (2) Background technology [0002] Polypropylene (PP) is one of the five general-purpose plastics. Because of its abundant raw material sources, cheap price, easy molding and processing, and excellent product comprehensive performance, it has a wide range of uses and has been widely promoted and applied. However, PP also has some shortcomings. Its biggest disadvantage is poor cold resistance, low temperature brittleness, followed by large shrinkage, poor creep resistance, and poor aging resistance, especially for homopolypropylene with a small body. [0003] Copolymerized polypropylene (PPR) is a new generation of polypropylene material formed by randomly and uniformly polymerizing 3-5 parts of ethylene monomer in the molecular chain of PP by gas phase copolymerization process in the la...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L23/08C08K13/06C08K3/26C08K3/36C08K5/134C08K5/526C08K5/098
CPCC08L23/12C08L2205/035C08L23/14C08L23/0815C08K13/06C08K9/06C08K9/04C08K2003/265C08K3/36C08K5/1345C08K5/526C08K5/098
Inventor 刘海燕武守鹏王中亚王辉侯红霞王玉强陈双喜王胜伟
Owner SHANDONG YUHUANG CHEM CO LTD
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