Polypropylene material for transparent bottles and preparation method thereof

A polypropylene material and polypropylene technology, applied in the field of polypropylene material and preparation for transparent bottles, can solve the problems such as the inability to achieve transparency, the transparency requirements of nursing bottles and sports water bottles, etc., and achieve improved transparency, high melt flow rate, high gloss effect

Active Publication Date: 2013-06-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current transparent polypropylene cannot be used in products such as injection stretch-blown baby bottles and sports water bottles, and the transparency cannot meet the transparency requirements of baby bottles and sports water bottles.

Method used

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  • Polypropylene material for transparent bottles and preparation method thereof
  • Polypropylene material for transparent bottles and preparation method thereof
  • Polypropylene material for transparent bottles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment one: the preparation method of base resin:

[0028] 1. The raw materials for the production of base resin are the following substances:

[0029] 1) Polymer grade propylene

[0030] project

Purity %

Water content 10-6

CO content 10-6

CO 2 Content 10-6

indicators

≥99.35

≤5

≤0.2

≤4

[0031] 2) Polymer grade ethylene

[0032] project

Purity %

Water content 10-6

CO content 10-6

CO 2 Content 10-6

indicators

≥99.92

≤3

≤0.03

≤3

[0033] 3) Based on the production of one ton of random polypropylene, add the following reagents: 35kg / ton catalyst DQ-III, 0.18kg / ton cocatalyst TEAL, 0.04kg / ton electron donor DONOR, 0.11kg / ton antistatic agent Atmer163.

[0034] 4), hydrogen

[0035] project

Purity %

Water content 10-6

CO content 10-6

Total sulfur content 10-6

indicators

≥95...

Embodiment 2

[0041] Add 99.45% (mass percentage) of random copolymer polypropylene base material into the 10.0L mixer according to the formula, add 0.3% (mass percentage) of anti-reflection agent NX8000K, 0.15% (mass percentage) of antioxidant, and 0.07% of acid absorbing agent (mass percentage), lubricant 0.03% (mass percentage), after 2min of high-speed mixing at normal temperature and pressure in the high-speed mixer, extrude granulation at 160 ℃ in the twin-screw granulator, by sampling analysis, haze reaches 11.8 % to obtain polypropylene for transparent bottles.

Embodiment 3

[0043]Add 99.40% (mass percentage) of random copolymer base material to the 10.0L mixer according to the formula, add 0.35% (mass percentage) of anti-reflection agent NX8000K, 0.15% (mass percentage) of antioxidant, and 0.07% acid absorbing agent (mass percentage), lubricant 0.03% (mass percentage), after high-speed mixing 3min in high-speed mixer, extrude granulation at 250 ℃ in twin-screw granulator, by sampling analysis, haze reaches 10.1%, obtains Transparent bottle made of polypropylene.

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Abstract

The invention discloses a polypropylene material for transparent bottles, which is prepared from the following raw materials in percentage by mass: 99.27 to 99.45 percent of basic resin, 0.15 to 0.20 percent of antioxygen, 0.06 to 0.07 percent of acid acceptor, 0.03 to 0.06 percent of lubricating agent, and 0.3 to 0.5 percent of transparent agent. The invention also discloses a preparation methodof the polypropylene material for transparent bottles. The transparency of the polypropylene material for transparent bottles is 30 to 40 percent higher than that of common polypropylene, and the quality of the polypropylene material for transparent bottles meets the requirement for producing baby bottles, sports water bottles, students' water bottles, food containers and the like.

Description

technical field [0001] The invention relates to a polypropylene material and a preparation method thereof, in particular to a polypropylene material for a transparent bottle and a preparation method thereof. Background technique [0002] In the past, beverage bottles, sports water bottles and baby bottles were all made of polycarbonate (PC) materials, but due to bisphenol A (BPA) in PC materials. BPA can cause endocrine disorders, affect infant development and immunity, and even cause cancer. The European Union believes that baby bottles containing bisphenol A can induce precocious puberty. From March 2, 2011, the production of baby food containers such as baby bottles containing the chemical substance bisphenol A (BPA) will be banned, and it will be banned from the market from June. on sale. The Ministry of Health of China has banned the use of bisphenol A in the production and import of infant food containers (such as baby bottles) since June 1 this year, and since Septe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K13/02C08K5/05B29B9/06
Inventor 易志勤梁平柯君豪李凌华
Owner CHINA PETROLEUM & CHEM CORP
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