Ethylene-octene copolymer waterproof coil and preparation method thereof

A technology of octene copolymer and waterproof membrane, which is applied to flat products, other household appliances, applications, etc., can solve the problems of high formula cost and inability to fully meet product performance indicators, and achieve low production cost, superior performance indicators, good flatness effect

Inactive Publication Date: 2012-07-18
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 meet the performance indicators of the product
If thermoplastic rubber SBS or thermoplastic elastomer TPE is used as the main material, the formula cost is too high, and a modified chlorinated polyethylene waterproof membrane and its preparation method are provided.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An ethylene-octene copolymer waterproof membrane, made of the following raw materials in parts by weight: 90 parts of ethylene-octene copolymer with an octene content of 40 wt%, 70 parts of chlorinated polyethylene with a chlorine content of 30 wt% , 140 parts of linear high-pressure polyethylene, 70 parts of activated calcium carbonate, 65 parts of dioctyl phthalate, 2 parts of phenolic antioxidant, 2 parts of heat stabilizer, 2 parts of stearic acid, ultraviolet absorber (UV327) 1.5 parts; The phenolic antioxidant is made of 50% phenolic main antioxidant 1010 and 50% phenolic auxiliary antioxidant 168 by weight ratio, and the heat stabilizer is 50% dibasic sub- Made of lead phosphate and 50% lead sulfate tribasic.

[0015] The method for preparing the ethylene-octene copolymer waterproof membrane comprises the following steps: (1) ingredients: mix various raw materials in proportion, and fully stir them evenly at room temperature; (2) granulate: put the evenly stirred...

Embodiment 2

[0017]An ethylene-octene copolymer waterproof membrane, made of the following raw materials in parts by weight: 95 parts of ethylene-octene copolymer with an octene content of 35 wt%, 75 parts of chlorinated polyethylene with a chlorine content of 25 wt% , 150 parts of linear high-pressure polyethylene, 100 parts of colloidal calcium carbonate, 70 parts of chlorinated paraffin, 2.5 parts of phenolic antioxidant, 2.5 parts of heat stabilizer, 2.5 parts of granular paraffin, 1.5 parts of ultraviolet absorber (UV327); The antioxidant is made of 50% phenolic primary antioxidant 1010 and 50% phenolic secondary antioxidant 168 by weight, and the heat stabilizer is 50% by weight of dibasic lead phosphite and 50% Tribasic lead sulfate.

[0018] The method for preparing the ethylene-octene copolymer waterproof membrane comprises the following steps: (1) ingredients: mix various raw materials in proportion, and fully stir them evenly at room temperature; (2) granulate: put the evenly st...

Embodiment 3

[0020] An ethylene-octene copolymer waterproof membrane is made of the following raw materials in parts by weight: 100 parts of ethylene-octene copolymer with an octene content of 45 wt%, and 80 parts of chlorinated polyethylene with a chlorine content of 40 wt%. , 160 parts of linear high-pressure polyethylene, 130 parts of activated calcium carbonate, 75 parts of imitation hydrogen oil, 3 parts of phenolic antioxidant, 3 parts of heat stabilizer, 3 parts of granular paraffin, 2 parts of ultraviolet absorber (UV531); The antioxidant is made of 50% phenolic primary antioxidant 1010 and 50% phenolic secondary antioxidant 168 by weight, and the heat stabilizer is 50% by weight of dibasic lead phosphite and 50% Tribasic lead sulfate.

[0021] The method for preparing the ethylene-octene copolymer waterproof membrane comprises the following steps: (1) ingredients: mix various raw materials in proportion, and fully stir them evenly at room temperature; (2) granulate: put the evenly...

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Abstract

The invention relates to a waterproof product, in particular to an ethylene-octene copolymer waterproof coil and a preparation method thereof, which solves the problem that the traditional waterproof coil can not completely satisfy various property indexes of the product and has high prescription cost. The coil is prepared from ethylene-octene copolymer, chlorinated polyethylene, linear high-pressure polyethylene, a filling strengthening agent, a softening plasticizer, a phenols antioxidant, a thermal stabilizer, a lubricating agent and a light stabilizer. The method comprises the following steps of: mixing and stirring various raw materials; granulating respectively by sequentially adopting a plastic refining machine, a double-roll press and a granulator; throwing the particles into a single screw extruder to be extruded, and forming by using a mould; and throwing the formed material into a three-roll cooling embosser to be rolled to form the waterproof coil. The waterproof coil maintains the specific softness, elongation and elasticity of rubber, also maintains higher break tension strength of LLDPE (Linear Low Density Polyethylene), and has good softness, flatness and smoothness, property indexes exceeding the national standard and the relevant standard of ministry of railway, better aging resistance property, physical property and processing property and lower production cost.

Description

technical field [0001] The invention relates to a waterproof coiled material, in particular to an ethylene-octene copolymer 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 from me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/20C08L23/28C08K13/02C08K3/26C08K3/30C08K3/32B29D7/01B29C47/92B29C59/04B29C48/92
CPCB29C48/914B29C48/04B29C48/08B29C48/397
Inventor 冯青连
Owner SHANXI SIFANG HENGTAI WATERPROOF MATERIALS
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