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PP/PVC/CPE (propene polymer/polyvinyl chloride/chlorinated polyethylene) ternary alloy and preparation method thereof

A ternary alloy and polyvinyl chloride technology, applied in the field of polymer materials, can solve the problems of poor toughness and low notched impact strength, and achieve the effects of high low temperature toughness, good flame retardant performance and high strength

Inactive Publication Date: 2012-07-25
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PP has poor toughness at low temperature, and the notched impact strength is significantly lower than the room temperature value

Method used

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  • PP/PVC/CPE (propene polymer/polyvinyl chloride/chlorinated polyethylene) ternary alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] According to weight percentage, PVC 32%, CPE 30%, organic tin 1.6%, epoxy soybean oil 0.5%, compound lubricant calcium stearate / PE wax is 0.5 / 0.5%, antioxidant 1010 / 168 is 0.3 / 0.6 %, 4% of other additives are placed in a high-speed mixer and mixed at 70°C for 5-8 minutes, cooled to room temperature and 30% PP is added, and stirring is continued for 3-5 minutes.

[0036] The mixed materials are added to the hopper of the twin-screw extruder, melted and blended, extruded and pelletized into alloy materials. Among them, the temperature settings of each heating zone of the screw are: temperature in zone one: 150°C; zone two: 155°C; zone three: 160°C; zone four: 170°C; head: 165°C; residence time 1~2min. The pressure is 10MPa.

Embodiment 2

[0038] According to weight percentage, PVC 34%, CPE 32%, organic tin 1.6%, epoxy soybean oil 0.7%, compound lubricant calcium stearate / PE wax is 0.4 / 0.6%, antioxidant 1010 / 168 is 0.2 / 0.7 % And 1.8% of other additives are placed in a high-speed mixer and mixed at 70°C for 5-8 minutes, cooled to room temperature and added 28% PP, and continue to stir for 3-5 minutes.

[0039] The mixed materials are added to the hopper of the twin-screw extruder, melted and blended, extruded and pelletized into alloy materials. Among them, the temperature settings of each heating zone of the screw are: temperature in zone one: 150°C; zone two: 155°C; zone three: 160°C; zone four: 170°C; head: 165°C; residence time 2~3min. The pressure is 10MPa.

Embodiment 3

[0041] According to weight percentage, PVC 34%, CPE 35%, organic tin 3%, epoxy soybean oil 1.1%, compound lubricant calcium stearate / PE wax is 0.3 / 0.7%, antioxidant 1010 / 168 is 0.3 / 0.6 %, 1.0% of other additives are placed in a high-speed mixer and mixed at 70°C for 5-8 minutes, cooled to room temperature and added 24% PP, and continue to stir for 3-5 minutes.

[0042] The mixed materials are added to the hopper of the twin-screw extruder, melted and blended, extruded and pelletized into alloy materials. Among them, the temperature settings of each heating zone of the screw are as follows: temperature in zone one: 150°C; zone two: 155°C; zone three: 160°C; zone four: 170°C; head: 165°C; residence time 1~2min. The pressure is 10MPa.

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Abstract

The invention discloses a PP / PVC / CPE (propene polymer / polyvinyl chloride / chlorinated polyethylene) ternary alloy and a preparation method thereof. The PP / PVC / CPE ternary alloy consists of the following components in percentage by weight: 20-30% of PP, 30-40% of PVC, 30-40% of CPE, 2-5% of heat stabilizer, 1-3% of composite lubricant, 0.2-0.6% of antioxidant and 2-4% of other auxiliaries. The PP / PVC / CPE ternary alloy disclosed by the invention makes good for deficiency in performance, has the advantages of high strength, good toughness, high low-temperature toughness and good flame retardation, and can be widely applied to the fields of office supplies, household appliances, automobile parts and the like.

Description

[Technical Field] [0001] The invention relates to the field of polymer materials, in particular to a PP / PVC / CPE ternary alloy and a preparation method thereof. [Background technique] [0002] Polyvinyl chloride (PVC) plastic has the advantages of good rigidity, high strength, flame retardant, corrosion resistance, good electrical insulation and adjustable hardness, but its processing performance is poor, notched impact strength and thermal deformation temperature are low, and it is brittle. Therefore, it is difficult for PVC plastics to replace engineering plastics, which greatly limits its application. [0003] Polypropylene (PP) has better tensile strength and rigidity. Among the five general plastics, PP has the best heat resistance. PP plastic products can work for a long time at 100°C. When there is no external force, PP products will not deform when heated to 150°C. PP has excellent chemical stability and is inert to most acids, alkalis, salts and oxidants. However, PP has...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L27/06C08L23/28C08K5/37C08K5/1515B29C47/92B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/92704B29C2948/92895
Inventor 徐东徐永马旭辉
Owner SHENZHEN KEJU NEW MATERIAL