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Modified regenerated polypropylene (PP) for pipes and pipe fittings and preparation method thereof

A technology for regenerating polypropylene and polypropylene, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problem of high production cost, achieve high production efficiency, achieve environmental protection and superior performance.

Inactive Publication Date: 2013-01-09
四川塑金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing special materials for PP pipes are all made of new materials, resulting in relatively high production costs, and to provide a low-cost pipe production method using recycled polypropylene as a raw material. , pipe fittings, modified recycled polypropylene for pipe fittings and preparation method thereof

Method used

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  • Modified regenerated polypropylene (PP) for pipes and pipe fittings and preparation method thereof
  • Modified regenerated polypropylene (PP) for pipes and pipe fittings and preparation method thereof
  • Modified regenerated polypropylene (PP) for pipes and pipe fittings and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Modified recycled polypropylene for pipes and pipe fittings, mainly composed of the following substances in weight percentage:

[0027] 5% polypropylene, 70% recycled polypropylene, 5% toughening agent, 5% talc, 2500 mesh 5% calcium carbonate, 5% impact modifier, 0.4% diiso peroxide Propylene, 0.8% antioxidant 1010, 1.8% silane coupling agent, 1.1% polypropylene wax, 0.5% calcium stearate, 0.4% pigment.

[0028] The specific preparation method is as follows:

[0029] Firstly, the waste polypropylene is crushed, washed, dried and homogenized to obtain recycled polypropylene. In order to avoid other impurities mixed in the waste polypropylene from affecting it, a blower is also used to blow out other light items mixed in the waste polypropylene during the drying process, and the light items are plastic labels etc.

[0030] The above-mentioned substances are passed into the batching machine at the above-mentioned ratio through the batching machine, and they are mixed un...

Embodiment 2

[0032] The difference between this embodiment and Example 1 is that the percentage content of each component is different, and the percentage content of each component is as follows in the present embodiment:

[0033] 10% polypropylene, 30% recycled polypropylene, 10% toughener, 20% talc, 2500 mesh 23% calcium carbonate, 1% impact modifier, 0.1% diiso peroxide Propylene, 0.4% antioxidant 1010, 0.5% silane coupling agent, 0.5% polypropylene wax, 2.5% calcium stearate, 2% pigment.

Embodiment 3

[0035] The difference between this embodiment and Example 1 is that the percentage content of each component is different, and the percentage content of each component in the present embodiment is as follows:

[0036] 25% polypropylene, 15% recycled polypropylene, 20% toughener, 5% talc, 2500 mesh 15% calcium carbonate, 3% impact modifier, 2% diiso peroxide Propylene, 2% antioxidant 1010, 3% silane coupling agent, 3% polypropylene wax, 3% calcium stearate, 4% pigment.

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Abstract

The invention discloses a modified regenerated polypropylene (PP) for pipes and pipe fittings and a preparation method thereof. The invention solves the problem of high production cost since the existing special materials for PP pipes are prepared from new materials. The modified regenerated PP is mainly prepared from the following components in percentage by weight: 5-55% of PP, 10-70% of recycled PP, 5-20% of toughener, 5-40% of talcum powder, 5-40% of calcium carbonate, 1-5% of shock-resistant modifier, 0.1-2% of dicumyl peroxide, 0.4-2% of antioxidant 1010, 0.5-3% of silane coupling agent, 0.5-3% of PP wax, 0.5-3% of calcium stearate and 0.4-4% of pigment. The invention also discloses a preparation method of the modified regenerated PP for pipes and pipe fittings. The invention can effectively recycle waste PP, saves the resources, lowers the cost, and has the advantages of environment protection and the like.

Description

technical field [0001] The invention relates to a polypropylene, in particular to a modified recycled polypropylene for pipes and pipe fittings and a preparation method thereof. Background technique [0002] Polypropylene, its English name is: Polypropylene (PP). In the early days, PP pipes were mainly used as agricultural water pipes. However, due to some problems such as impact strength and poor aging resistance in the early product performance, the market failed to open. [0003] As the Shanghai Plastic Building Materials Factory was the first to introduce foreign advanced technology, and the pipes for conveying cold and hot water produced by imported PP materials have been recognized by the market, many manufacturers have built PP pipe production lines at present, but PP pipes are in the plastic pipe market. The market share is still very low, and the existing special materials for PP pipes are all made of new materials, and their production costs are relatively high, w...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K13/02C08K3/34C08K3/26C08K5/14C08K5/54C08K5/098F16L9/12
Inventor 吴永刚陈道明
Owner 四川塑金科技有限公司