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A high durability root puncture resistant PVC waterproof membrane

A root puncture-resistant and waterproof membrane technology, applied in the field of polymer materials, can solve the problems of decreased peeling force of lap joints and decreased mechanical properties of materials

Active Publication Date: 2022-03-29
江苏雨中情防水材料有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is that when the current non-exposed PVC waterproof coiled material is used underground and on planted roofs, it is affected by the long-term humid environment in the soil and microorganisms, the decomposition of plasticizers and the influence of water absorption of the material, resulting in a decrease in the mechanical properties of the material and a In order to solve the phenomenon of decreased peeling force of the edge joint, a high-durability root-puncture-resistant PVC waterproof membrane has been developed to solve the problem of long-term waterproof performance and root-puncture resistance of PVC membranes under long-term humidity and soil microbial erosion, greatly improving such Waterproof material application fields and years

Method used

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  • A high durability root puncture resistant PVC waterproof membrane
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 51 parts of accurately weighed high-polymerization polyvinyl chloride resin, 2.4 parts of lead salt stabilizer, and 0.2 parts of stearic acid into the thermomixer and stir at low speed for 1 minute to mix the materials evenly, then turn on high-speed stirring (1600r / min) When the temperature rises to 75-80°C, add 20.8 parts of plasticizer diisooctyl sebacate and 3 parts of DINP, and continue to stir at high speed until the two main plasticizers are completely absorbed. At this time, the temperature is controlled at 90-92°C, then add 2 parts of auxiliary plasticizer chlorinated polyethylene, mix and stir at high speed until evenly mixed, then add 0.3 parts of polyethylene wax, 1.1 parts of titanium dioxide, 19 parts of active ground calcium carbonate, 0.2 parts of antibacterial agent, when the temperature rises to 102-105°C, send the mixed material into the rotating cold mixer at a low speed (140r / min), and discharge the material when the temperature drops below 40°C,...

Embodiment 2

[0031]Add 51 parts of accurately weighed high-polymerization polyvinyl chloride resin, 2.4 parts of lead salt stabilizer, and 0.3 parts of stearic acid into the thermomixer and stir at low speed for 1 minute to mix the materials evenly, then turn on high-speed stirring (1600r / min) When the temperature rises to 75-80°C, add 14 parts of plasticizer diisooctyl sebacate and 2 parts of DINP, and continue to stir at high speed until the two main plasticizers are completely absorbed. At this time, the temperature is controlled at 94-98°C, then add 5 parts of auxiliary plasticizer chlorinated polyethylene, mix and stir at high speed until evenly mixed, then add 0.8 parts of polyethylene wax, 1.2 parts of titanium dioxide, 23 parts of activated ground calcium carbonate, 0.3 parts of antibacterial agent, when the temperature rises to 102-105°C, send the mixed material into the rotating cold mixer at a low speed (140r / min), and discharge the material when the temperature drops below 40°C,...

Embodiment 3

[0033] Add 54 parts of accurately weighed high-polymerization degree chlorinated polyethylene resin, 2.7 parts of lead salt stabilizer, and 0.3 part of stearic acid into the thermomixer and stir at a low speed for 1 min to mix the materials evenly, then turn on high-speed stirring (1600r / min ), when the temperature rises to 75-80°C, add 18.5 parts of plasticizer diisooctyl sebacate and 3 parts of DINP, and continue to stir at high speed until the two main plasticizers are completely absorbed. At this time, the temperature control At 94-98°C, then add 3 parts of auxiliary plasticizer chlorinated polyethylene, mix and stir at high speed until evenly mixed, then add 1.0 parts of polyethylene wax, 1.2 parts of titanium dioxide, and 16 parts of activated ground calcium carbonate , 0.3 parts of antibacterial agent, when the temperature rises to 102-105°C, send the mixed material into the rotating cold mixer at a low speed (140r / min), and discharge the material when the temperature dr...

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Abstract

The invention discloses a high-durability root puncture-resistant PVC waterproof coiled material, which belongs to the field of durable materials. DINP 2%‑5%, chlorinated polyethylene 2%‑7%, lead salt stabilizer 2.4%‑2.8%, special treatment powder 15‑24%, stearic acid 0.2%‑0.5%, polyethylene wax 0.2%‑ 1.6%, titanium dioxide: 1.1%-1.5%, antibacterial agent 0.1%-0.4%. The PVC waterproof coiled material prepared by the invention has excellent mechanical properties and excellent puncture resistance, and is especially applied in an underground long-term humid environment, has good mechanical property retention rate and remarkable root-resistance effect.

Description

technical field [0001] The invention relates to a high-durability root puncture-resistant PVC waterproof coiled material, which belongs to the field of polymer materials. Background technique [0002] Affected by the current domestic production equipment and technical formula, exposed PVC is rarely used in my country. At present, the domestic market is dominated by non-exposed PVC. However, non-exposed PVC is mainly used as a waterproof layer for underground and planting roofs. It is affected by the long-term humid environment underground. As well as the influence of microorganisms in the soil, the failure of PVC material additives and the decomposition of plasticizers will reduce the mechanical properties of the coil and the welding will fail, seriously affecting the waterproof effect of the underground and the anti-puncture design requirements of the planted roof, resulting in the failure of the waterproof system. Contents of the invention [0003] The problem to be solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/28C08L23/06C08K13/06C08K9/04C08K3/26C08K3/22C08K5/09C08K5/11C08K5/12C08K3/08
CPCC08L27/06C08L23/286C08L2205/03C08L2205/025C08K2003/265C08K2003/2241C08K2003/0806C08K2201/011C08K2201/005C08L23/06C08K13/06C08K9/04C08K3/26C08K3/22C08K5/09C08K5/11C08K5/12C08K3/08
Inventor 张鸣李宏伟田益
Owner 江苏雨中情防水材料有限责任公司