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Co-extrusion material production formula and process

A technology of production formula and process, which is applied in the field of composite materials, can solve the problems of insufficient preparation of production process, reduction of product quality, mixing of impurities, etc.

Inactive Publication Date: 2018-12-25
浙江琛盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a co-extrusion material production formula and process, which solves the problem that the preparation work of the existing co-extrusion material production process is not perfect enough, and impurities are easily mixed in to affect product performance, and at the same time, no drying treatment is carried out before production , the quality of the product is reduced, there is no strict control in the production process, and the expected product effect cannot be achieved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A production formula for co-extrusion, which is made of the following components in parts by weight: 50% sarin resin, 35% polyethylene, 3% compatibilizer, 2% toughening agent and 10% other additives.

[0028] A process for co-extruding materials, comprising the following steps,

[0029] (1) To remove impurities, sieve the sarin resin with a fine wire mesh with a particle size slightly larger than that of the sarin resin, and then use a 60-120 mesh filter to filter the plasticizer, and sieve the sarin resin, polyethylene, toughening agent and other The additives are successively put into the drying equipment and dried until the water content is less than 0.1%;

[0030] (2) Formula weighing, according to the volume and feeding coefficient of the kneader and internal mixer, estimate the feeding amount, and then accurately weigh the raw materials according to the feeding amount;

[0031] (3) Kneading, put the raw materials into the high-speed kneader in turn, the kneading ...

Embodiment 2

[0041] A production formula for co-extrusion, which is made of the following components in parts by weight: 55% sarin resin, 26% polyethylene, 6% compatibilizer, 2% toughening agent and 11% other additives.

[0042] A process for co-extruding materials, comprising the following steps,

[0043] (1) To remove impurities, sieve the sarin resin with a fine wire mesh with a particle size slightly larger than that of the sarin resin, and then use a 60-120 mesh filter to filter the plasticizer, and sieve the sarin resin, polyethylene, toughening agent and other The additives are successively put into the drying equipment and dried until the water content is less than 0.1%;

[0044] (2) Formula weighing, according to the volume and feeding coefficient of the kneader and internal mixer, estimate the feeding amount, and then accurately weigh the raw materials according to the feeding amount;

[0045] (3) Kneading, put the raw materials into the high-speed kneader in turn, the kneading ...

Embodiment 3

[0055] A production formula for co-extrusion, which is made of the following components in parts by weight: 57% sarin resin, 25% polyethylene, 6% compatibilizer, 2% toughening agent and 10% other additives.

[0056] A process for co-extruding materials, comprising the following steps,

[0057](1) To remove impurities, sieve the sarin resin with a fine wire mesh with a particle size slightly larger than that of the sarin resin, and then use a 60-120 mesh filter to filter the plasticizer, and sieve the sarin resin, polyethylene, toughening agent and other The additives are successively put into the drying equipment and dried until the water content is less than 0.1%;

[0058] (2) Formula weighing, according to the volume and feeding coefficient of the kneader and internal mixer, estimate the feeding amount, and then accurately weigh the raw materials according to the feeding amount;

[0059] (3) Kneading, put the raw materials into the high-speed kneader in turn, the kneading t...

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Abstract

The invention discloses a co-extrusion material production formula and a process, and relates to the technical field of composite materials. A co-extrusion material is prepared from, by weight, 50-65%of sarin resin, 25-35% of polyethylene, 3-8% of compatilizers, 2-6% of flexibilizers and 7-12% of other auxiliaries. Impurities are removed, formula weighing is performed, feeding quantity is estimated according to the volume and the feeding coefficient of a kneading machine and an internal mixer, raw materials are accurately weighed according to the feeding quantity, sequentially fed into the kneading machine and kneaded for 10-15 minutes, discharging temperature is 100-120 DEG C, mixed materials are fed into the 50L internal mixer and internally mixed for 8-10 minutes at the internal mixingtemperature of 80-100 DEG C, material discharging temperature is 140-145 DEG C, the mixed materials are extruded, granulated and fed into a double-screw extruder, and the rotating speed of a cutter of the double-screw extruder is adjusted into the granule length of 3-4mm. A finished product is low in impurity content, strict in production technology, high in product quality and free from discoloring, caking and material decomposition, and equipment cannot be damaged in the production process.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a production formula and process of co-extrusion materials. Background technique [0002] Composite materials are composed of two or more materials with different properties. Through physical or chemical methods, materials with new properties are formed on the macro (micro) level. Various materials learn from each other in terms of performance and produce synergistic effects. The overall performance of composite materials is better than that of the original constituent materials to meet various requirements. The matrix materials of composite materials are divided into two categories: metal and non-metal. The metal matrix is ​​commonly used with aluminum, magnesium, copper, titanium and their alloys. Non-metallic substrates mainly include synthetic resin, rubber, ceramics, graphite, carbon, etc. Reinforcement materials mainly include glass fiber, carbon fiber, boron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L91/06C08K5/09
CPCC08L23/0869C08L2205/03C08L23/06C08L91/06C08K5/09
Inventor 夏明达
Owner 浙江琛盛新材料科技有限公司
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