Calendered film forming process

A molding process and calendering film technology, which is applied in the field of calendering film forming technology, can solve problems affecting the quality of calendering film products, achieve the effect of less air bubbles and improve quality

Inactive Publication Date: 2020-07-10
海宁市明德新材料有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0011] The above-mentioned high-elastic and wear-resistant calendering film production process has the following defects: a reinforcing agent is added during the batching, and the reinforcing agent absorbs a large amount of gas, which will bring them into the rubber compound to form bubbles, so that the interior of the calendered film produced in this way There are bubbles, too many bubbles will affect the product quality of the calendered film

Method used

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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0046] A calendered film forming process disclosed by the invention comprises the following steps:

[0047] A. Batching: weigh and batch the various raw material components required according to the specified ratio;

[0048] B. Mixing: Put the prepared materials into a high-speed mixer for stirring, and the stirring temperature is controlled at 80-110 degrees (preferably 80 degrees, 100 degrees or 110 degrees);

[0049] C. Plasticization: Put the mixed materials into the internal mixer for plastic refining. The temperature of plastic refining is controlled at 130-150 degrees (130 degrees, 140 degrees or 150 degrees are preferred);

[0050] D. Filtration: The plasticized material is filtered and fed through the twin-screw extruder. The barrel temperature of the twin-screw extruder is controlled at 130-165 degrees (preferably 130 degrees, 140 degrees or 165 de...

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Abstract

The invention relates to a calendered film forming process and belongs to the technical field of film production. The calendered film forming process comprises the following steps: proportioning: weighing and proportioning various required raw material components according to a specified ratio; mixing: putting the prepared materials into a high-speed stirrer for stirring; plasticizing: putting thestirred materials into an internal mixer for plastic smelting; primary calendering: putting the plasticized materials into a calender for calendering; bubble puncture treatment: carrying out bubble puncture treatment on the calendered sheet-shaped materials through a bubble puncture device; secondary calendering: putting the materials subjected to bubble puncture into another calender for secondary calendering, wherein the gap between pressing rollers for secondary calendering is smaller than the gap between pressing rollers for primary calendering, and a film is formed after the secondary calendering; and cooling and coiling: cooling the calendered film by a plurality of cooling rollers, and winding after cooling. The process can reduce air bubbles in the calendered film and improve thequality of the produced calendered film.

Description

technical field [0001] The invention relates to the technical field of film production, in particular to a rolling film forming process. Background technique [0002] Calendered film is made by calendering process. Calendering is to pass the heated polyvinyl chloride plastic through the gap between one or more pairs of horizontal rollers rotating in opposite directions, so that the material is squeezed and stretched to become a film with a certain thickness and width. And the process of thin products with smooth surface. [0003] The Chinese patent with the publication number CN101531062A discloses a high-elastic and wear-resistant calendering film production process, the process steps include: batching, high-speed stirring, internal mixer refining plastic, twin-screw extruder filtering and feeding, calender molding, Leading off device, cooling and shaping, the specific process steps are: [0004] (1) Ingredients: the various ingredients of the high-elastic wear-resistant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/24B29C43/26B29C43/32B29L7/00
CPCB29C43/24B29C43/26B29C43/32B29L2007/00
Inventor 管德跃苏海军韩红克
Owner 海宁市明德新材料有限公司
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