Preparation method of flame-retardant foam tape substrate

A tape and base material technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of poor flame retardant effect of flame retardant foam, achieve good flame retardant performance, increase foaming rate, and temperature stability Effect

Inactive Publication Date: 2019-11-12
ZHEJIANG RUNYANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the flame-retardant foam in this invention patent has the problem of poor flame-retardant effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing a flame-retardant foam tape base material, comprising six steps of raw material batching, banburying and granulation, stirring and mixing, extrusion molding, radiation crosslinking, and foaming and winding, in the raw material batching step , the raw materials include 70kg of low-density polyethylene, 10kg of foaming agent azodicarbonamide, 3kg of toughening agent calcium carbonate, 1kg of 1010 antioxidant, 1kg of lubricant zinc stearate and 15kg of resistance Combustion agent brominated hydrocarbon masterbatch.

[0032] In the stirring and mixing step, the mixing material is the remaining low-density polyethylene after the banburying and granulation step, the particles prepared in the banburying and granulation step, and the flame retardant. In addition, in the banburying and granulation step, the low-density polyethylene, foaming agent and antioxidant are uniformly mixed and kneaded, and blended for 9 minutes at a temperature of 110° C. to obtai...

Embodiment 2

[0040]A method for preparing a flame-retardant foam tape base material, comprising six steps of raw material batching, banburying and granulation, stirring and mixing, extrusion molding, radiation crosslinking, and foaming and winding, in the raw material batching step , the raw materials include 65kg of low density polyethylene, 12kg of blowing agent azodicarbonamide, 5kg of toughening agent calcium carbonate, 2kg of 1010 antioxidant, 2kg of lubricant zinc stearate and 14kg of resistance Combustion agent brominated hydrocarbon masterbatch.

[0041] In the stirring and mixing step, the mixing material is the remaining low-density polyethylene after the banburying and granulation step, the particles prepared in the banburying and granulation step, and the flame retardant. In addition, in the banburying and granulation step, the low-density polyethylene, foaming agent and antioxidant are uniformly mixed and kneaded, and blended for 910 minutes at a temperature of 120° C. to obta...

Embodiment 3

[0049] A method for preparing a flame-retardant foam tape base material, comprising six steps of raw material batching, banburying and granulation, stirring and mixing, extrusion molding, radiation crosslinking, and foaming and winding, in the raw material batching step , the raw materials include 60kg of low density polyethylene, 15kg of blowing agent azodicarbonamide, 10kg of toughening agent calcium carbonate, 2kg of 1010 antioxidant, 3kg of lubricant zinc stearate and 10kg of resistance Combustion agent brominated hydrocarbon masterbatch.

[0050] In the stirring and mixing step, the mixing material is the remaining low-density polyethylene after the banburying and granulation step, the particles prepared in the banburying and granulation step, and the flame retardant. In addition, in the banburying and granulation step, the low-density polyethylene, foaming agent, and antioxidant are uniformly mixed and kneaded, and blended for 910 minutes at a temperature of 130° C. to o...

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Abstract

The invention belongs to the technical field of polymer materials, and particularly relates to a preparation method of a flame-retardant foam tape substrate. The effect of effectively preparing the flame-retardant foam tape substrate is achieved through the modes of adding a foaming agent, a flexibilizer, an antioxidant, a lubricant and a flame retardant into low-density polyethylene, and combining with step-by-step extrusion, irradiation crosslinking and step-by-step foaming processes. The preparation method has the advantages that the preparation method of the flame-retardant substrate is reasonable and effective, the prepared foam tape substrate is good in flame-retardant performance and long in effective flame-retardant time, and the whole preparation method is efficient and economical.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a preparation method of a flame-retardant foam tape base material. Background technique [0002] Electron radiation cross-linked polyethylene foam (IXPE) tape base material is low-density polyethylene (LDPE) as the main raw material, adding foaming agent azodicarbonamide (AC) and other auxiliary materials, after banburying and granulation , extrusion processing, radiation crosslinking, foam molding and other processes to prepare the foam tape base material. [0003] Legislators have imposed high flame retardancy requirements on materials used in many applications and structures. Therefore flame retardant foam tape substrates are used in structures subject to such higher safety. In view of the current problems that most foam tape base materials do not have flame retardant effect and are extremely easy to burn, it is necessary to carry out flame retardant tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L25/06C08K13/02C08K3/26C08K5/098C08K5/02C08J9/10C08J3/22C08J3/28C09J7/26
CPCC08J3/226C08J3/28C08J9/0019C08J9/0023C08J9/0061C08J9/0066C08J9/0095C08J9/103C08J2201/03C08J2203/04C08J2323/06C08J2425/06C09J2423/046C09J7/26
Inventor 赵文坚姜兵徐杰杨庆锋
Owner ZHEJIANG RUNYANG NEW MATERIAL TECH
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