Polypropylene nylon plastic alloy for asphalt packaging bag

A technology of nylon plastic and polypropylene, which is applied in the chemical industry, can solve the problems of inconvenient road asphalt construction, high filling temperature of asphalt, and difficulty in complete melting, and achieve the effects of convenient construction, no discharge of three wastes, and convenient storage and transportation

Inactive Publication Date: 2006-10-11
刘信东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plastic flexible packaging bags currently produced in China still have the following performance defects, which are not conducive to the promotion of this major technological innovation: (1) The contradiction between the low melting point of polyolefin plastic flexible packaging bags and the high filling temperature of asphalt: road asphalt The filling temperature is generally 135-140°C; the plastic flexible packaging bags currently available in the domestic market are made of general-purpose thermoplastics, such as polyolefins, because of their low melting point (about 120°C), they can be filled at 135-140°C. It is easy to break at the installation temperature and cause asphalt leakage
(2) The contradiction between the high complete melting temperature of polyolefin plastic flexible packaging bags and the low asphalt construction temperature: the construction temperature of road asphalt is generally controlled below 170°C to prevent the performance of asphalt from deteriorating due to overheating and aging; The flexible packaging bag is completely melted at about 180°C, and it is difficult for the plastic flexible packaging bag to melt completely when the temperature is lower than 170°C
(3) The mechanical strength of polyolefin plastic flexible packaging bags is low: mechanical collisions inevitably occur during the filling, storage and transportation of road asphalt, resulting in the rupture of the packaging bags and causing asphalt leakage. Therefore, plastic woven bags are used for plastic flexible packaging bags. in case of leakage
But this brings a lot of inconvenience to the construction of road asphalt, also easily causes environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The polypropylene nylon plastic alloy of the present embodiment is made up of the component of following weight ratio:

[0021] Homopolypropylene (Beijing Yanshan Petrochemical Co., Ltd. F401): 95 parts, nylon 6 (Liaoyang Liaohua Engineering Plastics Co., Ltd.): 5 parts, maleic anhydride grafted polypropylene with a graft rate of 2.6%: 10 parts , Auxiliary: 0.10 parts.

[0022] The auxiliary agent is composed of the following components: benzoyl peroxide: 5 parts, styrene: 1 part, EPDM rubber: 1 part, carrier (phyllosilicate): 3 parts. Mix the components uniformly under the corresponding temperature conditions.

Embodiment 2

[0024] The polypropylene nylon plastic alloy of the present embodiment is made up of the component of following weight ratio:

[0025] Homopolypropylene (Beijing Yanshan Petrochemical Co., Ltd. F401): 90 parts, nylon 6 (Liaoyang Liaohua Engineering Plastics Co., Ltd.): 10 parts, grafted polypropylene with a graft rate of 2.6% (the graft monomer is methyl A mixture of glycidyl acrylate and styrene in a ratio of 9:1): 10 parts, auxiliary agent: 0.10 parts.

[0026] The auxiliary agent is composed of the following components: benzoyl peroxide: 5 parts, styrene: 1 part, EPDM rubber: 1 part, carrier (phyllosilicate): 3 parts. Mix the components uniformly under the corresponding temperature conditions.

Embodiment 3

[0028] The polypropylene nylon plastic alloy of the present embodiment is made up of the component of following weight ratio:

[0029] Homopolypropylene (Beijing Yanshan Petrochemical Co., Ltd. F401): 85 parts, nylon 6 (Liaoyang Liaohua Engineering Plastics Co., Ltd.): 15 parts, maleic anhydride grafted polypropylene with a graft rate of 2.6%: 10 parts , Auxiliary: 0.12 parts.

[0030] The auxiliary agent is composed of the following components: benzoyl peroxide: 5 parts, styrene: 1 part, EPDM rubber: 1 part, carrier (phyllosilicate): 3 parts. Mix the components uniformly under the corresponding temperature conditions.

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Abstract

The invention discloses a polypropylene nylon-plastic alloy for asphalt packaging bags, which comprises the following ingredients (by weight portions): polypropylene 80-95, nylon 5-20, auxiliary agent 0.1-1, and compatibilzer 5-20.

Description

technical field [0001] The invention relates to a polypropylene nylon plastic alloy for asphalt packaging bags, which belongs to the technical field of chemical industry. Background technique [0002] With the country's increasing investment in road construction, the amount of asphalt, an important material in road construction, is increasing. [0003] Due to the special properties of asphalt, which is easy to soften when heated, easy to leak, and strong adhesion, its storage and transportation have always been a major problem for road construction departments. In order to solve this problem, the country set up a special key research project as early as the "Eighth Five-Year Plan" period, and developed a new asphalt packaging bag process of asphalt flexible packaging, which brought a revolution to the storage and transportation of asphalt. The emergence of asphalt flexible packaging will gradually eliminate the traditional packaging of asphalt barrels, bringing a lot of con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12B65D85/84B65D30/02C08L77/00
Inventor 刘信东
Owner 刘信东
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