Manufacturing Process of Polyurethane Tape

A polyurethane and manufacturing process technology, which is applied in the manufacturing process field of polyurethane tapes, can solve the problems of difficult control, bad waste, thick but not hard finished products, etc., and achieves easy operation and shortened time controllability. Effect

Active Publication Date: 2014-10-01
华强方特(深圳)智能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the manufacture of polyurethane belts adopts male and female double-sided models to press and even needs hydraulic pressure, and the operation needs to be completed in a short time. Rapid gelation is likely to cause defects or waste products are not easy to control, and the pressed finished product is thick. not hard

Method used

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  • Manufacturing Process of Polyurethane Tape

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Effect test

Embodiment Construction

[0013] Below in conjunction with embodiment the present invention is further described.

[0014] Such as figure 1 Shown, a polyurethane belt manufacturing process, including

[0015] A. Preheat the mold single-sided body; in the environment where the conventional indoor temperature is lower than 25°C, heating equipment is required to raise the indoor temperature or the heat of the mold to above 25°C;

[0016] B. Production of synthetic prepolymer 1: select raw materials with 40 times physical expansion to prepare the copolymer, and after the preparation is completed, evenly paint a layer of copolymer on the surface of the mold, and the copolymer will expand to form skin and solidify;

[0017] C. Production of dry strong chain body 2: After curing, it will not stick to hands, then evenly brush a layer of copolymer, spread the cut fiber cloth on the copolymer, brush evenly with a brush and press it flat, wait After the skin is not sticky, the copolymer is evenly painted again,...

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Abstract

The invention discloses a preparation process of a polyurethane band, which relates to a preparation process of the polyurethane band. The preparation process of the polyurethane band comprises the following steps of: A, preheating a mold monohedron; B, preparing a synthetic pre-polymer; C, preparing a dry strong chain body; D, preparing a mixture; E, preparing a solid pre-polymer; and F, preparing a bark-grafted copolymer. The requirements on compression by using a female-male double-sided model and hydraulic pressure in the prior art are eliminated, the limit of a pre-polymerized compound is eliminated, the preparation process is convenient to operate and is not limited by environmental equipment, and time controllability can be prolonged or shortened optionally.

Description

technical field [0001] The present invention relates to a process for the manufacture of polyurethane tapes. Background technique [0002] In the prior art, the manufacture of polyurethane belt adopts male and female double-sided molds to press and even needs hydraulic pressure, and the operation needs to be completed in a short time. The rapid gelation is easy to cause defects or waste products are not easy to control, and the pressed finished product is thick. Not hard. Contents of the invention [0003] The object of the present invention is to provide a kind of manufacturing process of the polyurethane belt that is easy to operate. [0004] The purpose of the present invention can be achieved like this, design a kind of manufacturing process of polyurethane belt, comprise [0005] A. Preheat the mold single-sided body; in the environment where the conventional indoor temperature is lower than 25°C, heating equipment is required to raise the indoor temperature or the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/30B29K75/00B29L7/00
Inventor 李明戎志刚刘道强高敬义
Owner 华强方特(深圳)智能技术有限公司
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