Polyvinyl chloride (PVC) waterproof coiled material

Product Overview

Homogeneous polyvinyl chloride (PVC) waterproof coiled material is a kind of high-quality and high-polymer waterproof sheet. It is high-polymer waterproof coiled material produced and molded by extrusion by adding plasticizer, anti-uv agent, anti-aging agent, stabilizer and other processing aids into PVC resin. Due to the adoption of a unique product formula, the service life of the product far exceeds that of a common waterproof material, the service life of the whole waterproof system is long, the roofing is more than 20 years, the underground is more than 50 years, and the product is widely applied in buildings and civil engineering. 

The invention relates to an internally reinforced reinforcement polyvinyl chloride (PVC) waterproof coiled material, which is a thermoplastic PVC coiled material. The coiled material takes polyester fiber fabric or glass fiber as a reinforcing rib and is formed by combining a double-sided polyvinyl chloride plastic layer and a polyester or glass fiber reinforcing rib in the middle into a whole through a special extrusion coating method. The combination of an advanced polyvinyl chloride plastic layer with a reticular polyester fabric provides excellent dimensional stability and a low coefficient of thermal expansion. The reinforcing rib in the glass fiber is fully bonded with the coiled material, so that the phenomena of interlaminar separation, waterlogging and the like are avoided, and the long-term performance of the coiled material directly exposed to the natural environment is improved. At the same time, the unique coating on the surface of the coiled material enables the coiled material to have a self-cleaning function to prevent dust and pollutants in the air from being colored on the coiled material. 

Product Index    (Implementation Standards GB 12952-2011) 

Serial No.	Project			Indicators
				H	L		P	G	GL
1	Thickness of resin layer on intermediate base/mm       ≥			-			0.40
2	Tensile property	Maximum tensile force/N/cm              ≥		-	120		250	-	120
		Tensile strength /Mpa                    ≥		12.0	-		-	10.0	-
		Elongation at maximum tension          %≥		-	-		15	-	-
		Elongation at break/%                    ≥		500	250		-	200	100
3	Size change rate of heat treatment/%                 ≤			2.0	1.0		0.5	0.1	0.1
4	Low temperature bendability			No cracks of -25 ℃
5	Impermeability			0.3 Mpa, water impermeability for 2 h
6	Impact resistance			0.5 kg*m, water impermeability
7	Resistance to static load a			-		-	20 kg water impermeability
8	Joint peeling strength/(N/mm)                      ≥			4.0 or coiled material failure		3.0
9	Right-angle tear strength/(N/mm)                    ≥			50		-	-	50	-
10	Trapezoidal tear strength/N                         ≥			-		150	250	-	220
11	Water absorption (70 °C, 168 h)/%		After soaking    ≤	4.0
			After drying     ≥	-0.40
12	Thermal Aging (115 °C)	Time		672
		Appearance		Free of blisters, stratifications, delamination, bonds and openings
		Maximum tensile force retention rate/%     ≥		-		85	85	-	85
		Tensile strength retention rate/%           ≥		85		-	-	85	-
		Retention rate of elongation at maximum tensile force/%                               ≥		-		-	80	-	-
		Retention rate of elongation at break/%      ≥		80		80	-	80	80
		Low temperature bendability		No cracks of -20 ℃
13	Chemical resistance	Appearance		Free of blisters, stratifications, delamination, bonds and openings
		Maximum tensile force retention rate/%     ≥		-		85	85	-	85
		Tensile strength retention rate/%           ≥		85		-	-	85	-
		Retention rate of elongation at maximum tensile force/%                               ≥		-		-	80	-	-
		Retention rate of elongation at break/%      ≥		80		80	-	80	80
		Low temperature bendability		No cracks of -20 ℃
14	Artificial climate accelerated aging C	Time		1500 b
		Appearance		Free of blisters, stratifications, delamination, bonds and openings
		Maximum tensile force retention rate/%     ≥		-		85	85	-	85
		Tensile strength retention rate/%           ≥		85		-	-	85	-
		Retention rate of elongation at maximum tensile force/%                               ≥		-		-	80	-	-
		Retention rate of elongation at break/%      ≥		80		80	-	80	80
		Low temperature bendability		No cracks of -20 ℃

a. Static load resistance is only required for coiled materials used for press-paved roofs. b. The artificial climate accelerated aging time of single-layer coiled material roofing is 2500 h. c. It is not required to determine the accelerated aging of artificial climate for coiled materials not used for external equipment. Application fields Due to the adoption of the unique product formula, the service life of PVC waterproof coiled material far exceeds that of the general waterproof material. The excellent performance of the coiled material makes it widely used in various fields of waterproof. Product Advantages

● Mixture automation. Auto-thermal temperature rise control, automatic time control and automatic feeding control are adopted for the mixing of this project;

● Double-screw co-extrusion is adopted for the extrusion equipment, and the temperature of the screw adopts the computer self-regulating system;

● Machine head adopts large-width die head extrusion equipment with width of 2.1 m;

● Precision three-roller calendaring device, equipment spacing adopts self-controlling and self-adjusting system.