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Novel antiblocking master batch and preparation method

A kind of opening masterbatch, a new technology, applied in the field of plastic blow molding, can solve the problems of smooth opening performance decline, product pollution, difficult opening, etc., achieve excellent anti-barrier performance, reduce surface friction coefficient, and easy opening effect

Inactive Publication Date: 2016-01-13
山东鲁燕色母粒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plastic products are prone to sticking during the blow molding process and are not easy to open. Generally, there are three main reasons for the sticking of plastic products: First, due to the molecular structure of the plastic material itself and the accumulation of static electricity, the film has a tendency to stick; The second is that the low molecular substances contained in the film diffuse and seep to the surface of the film, causing adhesion after being heated and pressed; the third is that the surface of the film is too smooth and fit together to form an interlayer vacuum.
Traditional anti-blocking masterbatches use organic anti-blocking agents, mainly amide anti-blocking agents, but there are great defects in amide anti-blocking agents: after the film is manufactured, it will take a period of time until the slip agent migrates from the inside of the film to the surface of the film. The anti-blocking effect can only be exerted after the surface of the film is removed, but with the prolongation of use time, the smooth opening performance gradually decreases, and the amide substances migrate to the surface of the product and easily pollute the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 1. Turn on the co-rotating parallel twin-screw extruder for heating, and the heating temperature of each temperature zone is shown in Table 1;

[0012] Table 1:

[0013] Warm zone one two three Four five six seven eight Nine nose temperature 100±10 120±10 160±10 160±10 160±10 160±10 150±10 140±10 140±10 160±10

[0014] 2. Clean up the high-speed mixer, weigh 0.7 parts of zinc stearate, 0.3 parts of silane coupling agent, 20 parts of silica blocking agent, and 79 parts of polyethylene according to the formula. Add the silicon dioxide anti-blocking agent into the high-speed mixer, first stir at low speed for 6 to 8 minutes, and then stir at high speed for 10 minutes, so that the coupling agent evenly covers the silica anti-blocking agent; then add the remaining materials together and mix at high speed Mix the material thoroughly and evenly in the machine.

[0015] 3. When the temperature rises to the temperature in Table 1...

Embodiment 2

[0017] 1. Turn on the twin-screw extruder for heating, and the heating temperature of each temperature zone is shown in Table 2;

[0018] Table 2:

[0019] Warm zone one two three Four five six seven eight Nine nose temperature 100±10 130±10 180±10 180±10 180±10 180±10 140±10 130±10 130±10 180±10

[0020] 2. Clean up the high-speed mixer, weigh 1 part of zinc stearate, 30 parts of natural potassium aluminosilicate sodium salt, 0.6 parts of silane coupling agent, and 68.4 parts of polyethylene according to the formula. Add the coupling agent and natural potassium aluminosilicate sodium salt opening agent into the high-speed mixer, first stir at low speed for 3 to 5 minutes, and then stir at high speed for 13 minutes, so that the coupling agent evenly covers the opening agent; then add the remaining materials into high-speed mixer Mix thoroughly in a mixer.

[0021] 3. When the temperature rises to the temperature in Table 2, add...

Embodiment 3

[0023] 1. Turn on the twin-screw extruder for heating, and the heating temperature of each temperature zone is shown in Table 3;

[0024] table 3:

[0025] Warm zone one two three Four five six seven eight Nine nose temperature 100±10 120±10 170±10 170±10 170±10 170±10 150±10 150±10 140±10 170±10

[0026] 2. Clean up the high-speed mixer, weigh 0.9 parts of zinc stearate, 40 parts of nepheline, 0.7 parts of silane coupling agent, and 58.4 parts of polyethylene according to the formula. Put the anti-blocking agent into the high-speed mixer, first stir at low speed for 5 to 6 minutes, then stir at high speed for 9 minutes, so that the coupling agent can evenly cover the anti-blocking agent, and then add the remaining materials into the high-speed mixer to fully mix the materials evenly.

[0027] 3. When the temperature rises to the temperature in Table 3, add the stirred raw materials into the feeding hopper of the parallel twin-s...

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PUM

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Abstract

The invention discloses a novel antiblocking master batch and a preparation method. The preparation method comprises adding a silane coupling agent and an antiblocking agent into a high-speed mixer according to a ratio, firstly performing low-speed stirring, and then performing high-speed stirring, so as to uniformly coat the silane coupling agent with the antiblocking agent, and then adding polyethylene resin and a lubricant into the high-speed mixer according to a ratio, extruding by a same-direction parallel double-screw extruder, and then performing cooling and pelletizing. The novel antiblocking master batch avoids film adhesion and is good in dispersibility.

Description

technical field [0001] The invention belongs to the technical field of plastic blow molding, and in particular relates to a novel opening masterbatch and a preparation method. Background technique [0002] Films made of polyethylene, polypropylene and other resins are used for packaging and as coating layers. Plastic packaging and plastic packaging products are taking an increasing share in the market, especially composite plastic flexible packaging, which has been widely used Used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, steamed food packaging, fast food packaging, etc. These products have brought great convenience to people's life . However, plastic products are prone to sticking during the blow molding process and are not easy to open. Generally, there are three reasons for the sticking of plastic products: First, due to the molecular str...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K9/10C08K5/098C08K3/36C08K3/34B29C47/92B29C48/92
CPCC08K9/10B29C48/92B29C2948/92209C08K3/34C08K3/36C08K5/098C08K2201/014C08L23/06
Inventor 李磊陈卫国张新民张鑫梁晓玉
Owner 山东鲁燕色母粒有限公司