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Environment-friendly high-efficiency nylon demoulding master batch and preparation method thereof

A high-efficiency, nylon-based technology, applied in the field of environmentally friendly and high-efficiency nylon release masterbatch and its preparation, can solve the problems of short molding cycle, masterbatch not reaching the effect, no demoulding, etc., to increase the crystallization rate, shorten the molding cycle, The effect of improving the release effect

Pending Publication Date: 2020-10-16
FUJIAN ZHONGJIN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nylon plastic products are mainly made by injection molding. During the injection molding process, due to the influence of raw materials, product shape, and injection molding process, it often encounters the situation that the demoulding effect is not good or even does not demould.
The existing technology is to make a release agent into a masterbatch and add it to the raw material to make it have a release effect. However, in some special occasions, such as products with complex shapes and thin products, which require a shorter molding cycle to obtain economic benefits, now The masterbatch produced by the technology cannot achieve the effect, or a large amount of masterbatch needs to be added to achieve the effect

Method used

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  • Environment-friendly high-efficiency nylon demoulding master batch and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In the embodiment of the present invention, an environment-friendly and high-efficiency nylon mold release masterbatch includes, in parts by mass: 60 parts of nylon slices, 10 parts of nano-silica, 5 parts of EBS, and 0.2 parts of antioxidant;

[0021] The relative viscosity of the nylon chips is 2.5;

[0022] A method for preparing an environmentally friendly and efficient nylon release masterbatch, comprising the following steps: step 1, weighing ingredients according to the proportion of each raw material, and mixing them uniformly to obtain a mixture; step 2, mixing the mixture in step 1 through parallel double Plasticized by screw extruder, sheared by screw, then water-cooled, pelletized, and vacuum-dried to obtain environmentally friendly and efficient nylon release masterbatch;

[0023] In the step 1, each raw material is mixed in a vertical mixer, the rotating speed of the mixer is 60r / min, and the mixing time is 10-20min, and the temperature control of the barr...

Embodiment 2

[0025] An environment-friendly and high-efficiency nylon mold release masterbatch, comprising: nylon chips: 80 parts, nano-silica: 20 parts, EBS: 10 parts, antioxidant: 0.5 parts;

[0026] The relative viscosity of the nylon chips is 2.5;

[0027] A method for preparing an environmentally friendly and efficient nylon release masterbatch, comprising the following steps: step 1, weighing ingredients according to the proportion of each raw material, and mixing them uniformly to obtain a mixture; step 2, mixing the mixture in step 1 through parallel double Plasticized by screw extruder, sheared by screw, then water-cooled, pelletized, and vacuum-dried to obtain environmentally friendly and efficient nylon release masterbatch;

[0028] In the step 1, each raw material is mixed in a vertical mixer, the rotating speed of the mixer is 60r / min, and the mixing time is 10-20min, and the temperature control of the barrel of the parallel twin-screw extruder is as follows: first, The secon...

Embodiment 3

[0030] An environment-friendly and high-efficiency nylon mold release masterbatch, comprising: 55 parts of nylon slices, 15 parts of nano-silica, 6 parts of EBS, and 0.3 parts of antioxidant in terms of parts by mass;

[0031] The relative viscosity of the nylon chips is 2.5;

[0032] A method for preparing an environmentally friendly and efficient nylon release masterbatch, comprising the following steps: step 1, weighing ingredients according to the proportion of each raw material, and mixing them uniformly to obtain a mixture; step 2, mixing the mixture in step 1 through parallel double Plasticized by screw extruder, sheared by screw, then water-cooled, pelletized, and vacuum-dried to obtain environmentally friendly and efficient nylon release masterbatch;

[0033] In the step 1, each raw material is mixed in a vertical mixer, the rotating speed of the mixer is 60r / min, and the mixing time is 10-20min, and the temperature control of the barrel of the parallel twin-screw ext...

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Abstract

The invention discloses an environment-friendly high-efficiency nylon demoulding master batch and a preparation method thereof. The environment-friendly high-efficiency nylon demoulding master batch is prepared from the following raw materials in parts by mass: 60 to 80 parts of nylon slices, 10 to 20 parts of nano silicon dioxide, 5 to 10 parts of EBS and 0.2 to 0.5 part of an antioxidant. Nylon6 slices are used as a matrix, nano silicon dioxide, a lubricant and an antioxidant are added, and a parallel twin-screw extruder is used for mixing to obtain the master batch. The nylon demoulding master batch prepared by utilizing the nucleating effect of nano silicon dioxide and the lubricating and dispersing effects of EBS can remarkably improve the demoulding effect of a product during injection molding by adding a small amount of the nylon demoulding master batch into nylon 6, and the forming period is shortened.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an environment-friendly and high-efficiency nylon release masterbatch and a preparation method thereof. Background technique [0002] Nylon is a general-purpose engineering plastic with excellent comprehensive properties. It is one of the five general-purpose engineering plastics with the largest output and variety and the widest application. There are many varieties, the main varieties are PA6, PA66, PA46, PA11, PA12, PA1010, etc. Among them, the output of PA6 and PA66 accounts for about 90% of the total PA, occupying a dominant position. [0003] Nylon plastic products are mainly made by injection molding. During the injection molding process, due to the influence of raw materials, product shape, and injection molding process, it often encounters the situation that the demoulding effect is not good or even not demoulding. The existing technology is to ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08K3/36C08K5/20C08J3/22B29C48/92B29B9/06
CPCC08J3/226B29C48/92B29B9/06C08J2377/00C08K3/36C08K5/20C08K2201/011C08K2201/003B29C2948/92704B29C2948/9259
Inventor 李小东唐杨彭明川
Owner FUJIAN ZHONGJIN NEW MATERIALS
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