Modified chlorinated polyethylene waterproof roll and method for preparing same

A technology of chlorinated polyethylene and waterproof membranes, which is applied to bridge parts, bridges, buildings, etc., can solve the problems of high formula cost and inability to fully meet product performance indicators, and achieve low production costs, superior performance indicators, and flatness Good results

Inactive Publication Date: 2010-06-02
SHANXI SIFANG HENGTAI WATERPROOF MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing two types of waterproof coiled materials for bridge engineering basically use high-pressure polyethylene to modify chlorinated polyethylene as the base of the waterproof coiled material, which cannot fully me

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example 1:

[0014] A modified chlorinated polyethylene waterproofing membrane made of the following parts by weight: 85 parts of ethylene-octene copolymer, 10 parts of chlorinated polyethylene with 25% chlorine content, and 20 parts of linear high-pressure polyethylene Parts, active calcium carbonate 10 parts, dioctyl phthalate 6 parts, phenolic antioxidant 0.5 parts, heat stabilizer 0.5 part, stearic acid 0.2 part, ultraviolet absorber (UV327) 0.5 part; phenolic anti-oxidant The oxygen agent is made of 50% phenolic main antioxidant 1010 and 50% phenol auxiliary antioxidant 168 by weight. The heat stabilizer is made of 50% dibasic lead phosphite and 50% by weight. Made of tribasic lead sulfate.

[0015] The method for preparing modified chlorinated polyethylene waterproof membrane includes the following steps: (1) Ingredients: mix various raw materials in proportions, and stir them evenly at room temperature; (2) Granulation: put the evenly stirred mixture into airtight T...

Example Embodiment

[0016] Example 2:

[0017] A modified chlorinated polyethylene waterproofing membrane made of the following raw materials by weight: 120 parts of ethylene-octene copolymer, 100 parts of chlorinated polyethylene with 45% chlorine content, and 180 parts of linear high-pressure polyethylene Parts, 200 parts of colloidal calcium carbonate, 90 parts of chlorinated paraffin, 4 parts of phenolic antioxidant, 4 parts of heat stabilizer, 4 parts of granular paraffin, 2.5 parts of ultraviolet absorber (UV327); phenolic antioxidants by weight It is made of 50% phenolic main antioxidant 1010 and 50% phenolic auxiliary antioxidant 168. The heat stabilizer is made of 50% dibasic lead phosphite and 50% tribasic lead sulfate in weight ratio production.

[0018] The method for preparing modified chlorinated polyethylene waterproofing membrane includes the following steps: (1) Ingredients: mixing various raw materials in proportions, and fully stirring them at room temperature; (2) Granulating: put...

Example Embodiment

[0019] Example 3:

[0020] A modified chlorinated polyethylene waterproofing membrane made of the following parts by weight of raw materials: 85 parts of ethylene-octene copolymer, 10 parts of chlorinated polyethylene with 35% chlorine content, and 180 parts of linear high-pressure polyethylene Parts, 200 parts of activated calcium carbonate, 6 parts of imitation hydrogen oil, 4 parts of phenolic antioxidants, 0.5 parts of heat stabilizers, 4 parts of granular paraffin, 0.5 parts of ultraviolet absorber (UV531); phenolic antioxidants by weight It is made of 50% phenolic main antioxidant 1010 and 50% phenolic auxiliary antioxidant 168. The heat stabilizer is made of 50% dibasic lead phosphite and 50% tribasic lead sulfate in weight ratio production.

[0021] The method for preparing modified chlorinated polyethylene waterproofing membrane includes the following steps: (1) Ingredients: mixing various raw materials in proportions, and fully stirring them at room temperature; (2) Gran...

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PUM

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Abstract

The invention relates to a waterproof roll, in particular to a modified chlorinated polyethylene waterproof roll and a method for preparing the same, which solve the problems that the conventional waterproof roll cannot meet various performance indexes of products and the cost of formula is too high. The modified chlorinated polyethylene waterproof roll is prepared from an ethylene-octene copolymer, chlorinated polyethylene, linear high-pressure polyethylene, a filling reinforcing agent, a softening plasticizer, a phenolic antioxidant, a heat stabilizer, a lubricant and a light stabilizer. The method comprises the following steps of mixing and stirring various raw materials; pelleting the mixture by using a plastic mixing mill, a double roller and a pelletizer; putting granules into a single-screw extruder to extrude and then molding the granules through a die; and putting the molding materials into a three-roller cooling embossing machine to press the waterproof roll. The waterproof roll not only maintains specific flexibility, elongation and resilience of rubber, but also maintains higher tensile breaking strength of LLDPE; the waterproof roll has the advantages of good flexibility, flatness and evenness of the whole sheet, excellent ageing-resistance performance, physical performance and processing performance, and low production cost; and the performance indexes exceed national standards and relative standards of the Ministry of Railways.

Description

technical field [0001] The invention relates to a waterproof coiled material, in particular to a modified chlorinated polyethylene waterproof coiled material with excellent aging resistance, physical properties and processing properties and a preparation method thereof. Background technique [0002] At present, the N-type (non-composite layer membrane) and L-type (double-sided composite non-woven fabric) waterproof membranes for bridges produced by various manufacturers basically use high-pressure polyethylene or linear high-pressure polyethylene to modify chlorinated polyethylene. Do waterproof membrane substrate. Although the formulas and processes of various manufacturers are different, there are great defects; (1) if high-pressure polyethylene or linear high-pressure polyethylene is used as the main body, although various mechanical properties can reach the relevant standards of the Ministry of Railways, but, The softness, flatness and resilience of the product are far ...

Claims

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Application Information

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IPC IPC(8): E01D19/08
Inventor 方再荣赵永生薄书龙罗晓明张小红
Owner SHANXI SIFANG HENGTAI WATERPROOF MATERIALS
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