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Hot melt adhesive for high-performance polypropylene barrier film as well as preparation method and application of hot melt adhesive

A polypropylene and barrier film technology, applied in chemical instruments and methods, adhesives, grafted polymer adhesives, etc., can solve problems such as poor adhesion, many crystal points, and large odor, and achieve excellent adhesion performance , the effect of less crystal point

Active Publication Date: 2022-02-11
合诚技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The primary purpose of the present invention is to overcome the problems of poor adhesion, large odor and many crystal points of the existing hot melt adhesive for polypropylene barrier film, and to provide a high-performance hot melt adhesive for polypropylene barrier film. High, no irritating odor and less crystal point

Method used

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  • Hot melt adhesive for high-performance polypropylene barrier film as well as preparation method and application of hot melt adhesive
  • Hot melt adhesive for high-performance polypropylene barrier film as well as preparation method and application of hot melt adhesive
  • Hot melt adhesive for high-performance polypropylene barrier film as well as preparation method and application of hot melt adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Maleic anhydride (MAH) grafted polypropylene (maleic anhydride graft rate 2.5%, density 0.900g / cm 3 , under the conditions of 230°C and 2.16kg, the melt flow rate is 6g / 10min) 20 parts by mass, random copolymerized polypropylene (density 0.905g / cm 3 , under the conditions of 230°C and 2.16kg, the melt flow rate is 3g / 10min) 52 parts by mass, low-density polyethylene (density 0.910g / cm 3 10 parts by mass of metallocene polyolefin plastomer (melt flow rate of 1.0 g / 10min at 190 °C and 2.16 kg) 15 parts by mass , PP grafted maleic anhydride wax (density 0.940g / cm 3, maleic anhydride content 7.5%, viscosity is 300cps) 3 mass parts under the condition of 190 ℃, antioxidant 1010 (BASF company) 0.1 mass part and antioxidant 168 (BASF company) 0.2 mass part join high-speed mixer together After mixing evenly, blend and granulate through a twin-screw extruder. The processing temperature of the twin-screw extruder is 190°C, the speed of the screw is 350rpm, the vacuum degree of ...

Embodiment 2

[0029] Maleic anhydride (MAH) grafted polypropylene (maleic anhydride graft rate 2.5%, density 0.900g / cm 3 , under the conditions of 230°C and 2.16kg, the melt flow rate is 6g / 10min) 20 parts by mass, random copolymerized polypropylene (density 0.905g / cm 3 , under the conditions of 230°C and 2.16kg, the melt flow rate is 3g / 10min) 42 parts by mass, low-density polyethylene (density 0.910g / cm 3 10 parts by mass of metallocene polyolefin plastomer (melt flow rate of 1.0 g / 10min at 190 °C and 2.16 kg) 25 parts by mass , PP grafted maleic anhydride wax (density 0.940g / cm 3 , maleic anhydride content 7.5%, viscosity is 300cps) 3 mass parts under the condition of 190 ℃, antioxidant 1010 (BASF company) 0.1 mass part and antioxidant 168 (BASF company) 0.2 mass part join high-speed mixer together After mixing evenly, blend and granulate through a twin-screw extruder. The processing temperature of the twin-screw extruder is 190°C, the speed of the screw is 350rpm, the vacuum degree of...

Embodiment 3

[0031] Maleic anhydride (MAH) grafted polypropylene (maleic anhydride graft rate 2.5%, density 0.900g / cm 3 , under the conditions of 230°C and 2.16kg, the melt flow rate is 6g / 10min) 20 parts by mass, random copolymerized polypropylene (density 0.905g / cm 3 , under the conditions of 230°C and 2.16kg, the melt flow rate is 3g / 10min) 50 parts by mass, low-density polyethylene (density 0.910g / cm 3 10 parts by mass of metallocene polyolefin plastomer (melt flow rate of 1.0 g / 10min at 190 °C and 2.16 kg) 15 parts by mass , PP grafted maleic anhydride wax (density 0.940g / cm 3 , maleic anhydride content 7.5%, viscosity is 300cps) 5 mass parts under the condition of 190 ℃, antioxidant 1010 (BASF company) 0.1 mass part and antioxidant 168 (BASF company) 0.2 mass part join high-speed mixer together After mixing evenly, blend and granulate through a twin-screw extruder. The processing temperature of the twin-screw extruder is 190°C, the speed of the screw is 350rpm, the vacuum degree of...

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Abstract

The invention discloses a hot melt adhesive for a high-performance polypropylene barrier film as well as a preparation method and application of the hot melt adhesive. The hot melt adhesive is prepared from 10 to 30 parts of maleic anhydride grafted polypropylene, 35 to 60 parts of polypropylene-random-copolymer, 0 to 20 parts of low-density polyethylene, 10 to 30 parts of metallocene polyolefin plastomer, 0 to 5 parts of PP grafted maleic anhydride wax and 0.1 to 0.5 part of antioxidant. Through component optimization, the hot melt adhesive has the characteristics of excellent bonding performance, no pungent smell and few crystal points, and solves the problems of poor bonding force, strong smell and many crystal points of the hot melt adhesive for the domestic polypropylene barrier film.

Description

technical field [0001] The invention belongs to the field of polymer adhesives, and in particular relates to a high-performance hot-melt adhesive for polypropylene barrier films and a preparation method and application thereof. Background technique [0002] It can be seen from the material properties that polypropylene has a higher melting point and Vicat softening point and higher mechanical tensile strength than polyethylene. Therefore, some barrier packaging films that require high-temperature cooking and puncture resistance are usually selected. Multilayer coextruded barrier film based on polypropylene. Polypropylene multi-layer co-extruded barrier film is mostly polypropylene (PP) layer inside and outside, and the middle layer is mostly ethylene-vinyl alcohol copolymer (EVOH) or polyamide (PA) or polyvinylidene chloride (PVDC) as the barrier layer , The inner and outer PP layers and the middle barrier layer are bonded with hot melt adhesive. The hot melt adhesive is p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/14C09J151/06C09J123/06C09J123/08C09J11/06B32B7/12B32B27/06B32B27/32
CPCC09J123/14C09J11/06B32B27/32B32B7/12B32B27/06C08L2207/066C08L2201/10C08L51/06C08L23/06C08L23/0815C08K5/1345C08K5/526
Inventor 黄应勤毛日辉辛潮叶涛池晓明游华燕诸泉蒋文真
Owner 合诚技术股份有限公司
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