Cross-Linked PVC Foam for Vacuum Bagging

Min.Order: 100

Product origin: Changzhou, Jiangsu, China

Infringement complaint:

Complaint

US$ 15 ~ 47

Description

Introduction:

Cross-linked, closed cell PVC structural foam has good specific stiffness, specific strength. Compression, tensile, shear and bending strengths are excellent.
PVC foam core also has good dimensional stability and easy to process, suitable for a variety of processes. It is an ideal core material for lightweight & high-strength composite sandwich structures.
It provides excellent fatigue resistance, impact resistance and very low water absorption. Heat and sound insulation are also very good.

Features:
High performance weight ratio, good impact resistance
Resistance to many chemicals, almost no water absorption
Low flammability, self-extinguishing from fire
Suitable for a variety of composite molding methods: Vacuum infusion, spray up, hand lay-up, vacuum bagging
Good impact strength
Low resin absorption
Good sound & thermal insulation

Application:
marine, surface transport, aerospace, and wind energy industries

Specifications:

Item	Standard	Unit		P48	P60	P80	P100	P130	P200	P250
Density	ISO 845	Kg/m3	Average	48	60	80	100	130	200	250
			Tolerance	43-55	-6,+9	±10	±10	±15	±20	±30
Compression Strength	ASTM D1621	MPa	Average	0.60	0.9	1.4	2.0	3.0	4.8	6.2
Compression Strength			Minimum	(0.50)	(0.7)	(1.15)	(1.65)	(2.4)	(4.2)	(NA)
Compression Modulus	ASTM D 1621	MPa	Average	48	70	90	135	170	240	300
Compression Modulus			Minimum	(35)	(60)	(80)	(115)	(145)	(200)	(NA)
Tensile Strength	ASTM D 1623	MPa	Average	0.95	1.8	2.5	3.5	4.8	7.1	9.2
Tensile Strength			Minimum	(0.8)	(1.5)	(2.2)	(2.5)	(3.5)	(6.3)	(NA)
Tensile	ASTM D 1623	MPa	Average	35	75	95	130	175	250	320
Modulus			Minimum	(28)	(57)	(85)	(105)	(135)	(210)	(NA)
Shear	ASTM C 273	MPa	Average	0.55	0.76	1.15	1.6	2.2	3.5	4.5
Strength			Minimum	(0.50)	(0.63)	(0.95)	(1.4)	(1.9)	(3.2)	(NA)
Shear	ASTM C 273	MPa	Average	16	20	27	35	50	85	104
Modulus			Minimum	(14)	(16)	(23)	(28)	(40)	(75)	(NA)
Shear Elongation	ASTM C 273	%	Average Minimum	10 (8)	20 (10)	30 (15)	40 (25)	40 (30)	40 (30)	40 (NA)
Shear Elongation	ASTM C 273	%	Average Minimum	10 (8)	20 (10)	30 (15)	40 (25)	40 (30)	40 (30)	40 (NA)
	Width	mm	±5	1270	1120	1010	940	840	740	700
Standard
Standard	Length	mm	±5	2730	2350	2160	2040	1880	1600	1500
Size	Length	mm	±5	2730	2350	2160	2040	1880	1600	1500

	Thickness	mm	±0.5	5~80	5~70	3~65	3~60	3~50	3~40	3~40
	Thickness	mm	±0.5	5~80	5~70	3~65	3~60	3~50	3~40	3~40

Surface Treatment:
The selection of the appropriate post-processing technology will affect your product from all aspects such as the performance, cost and production efficiency. We have an advanced foam post-processing system and we will help you select the proper processing technologies such as cutting, grooving, perforation and so on.
Depending on different lamination processes and requirements of surface curvature, we provide 6 kinds of foam cores (as shown in the following) with optimizing the amount of glue absorption:

Scheme	Type	Description	Molding Process
	Flat Plate	There is no other post- processing. If you want curved surface, you can get it upon treating the flat plate by thermoforming.	Suitable for hand lay-up, compression molding and other processes of the flat plate with sandwich structure.
	Scrim Foam	Small squares are formed by cutting on one side of the flat plate in both directions of length and width with gluing fiberglass mesh on the other side.	Suitable for products with curved surfaces.
	Double Cuts	Cut both sides of the core material to the extent 55-60% of the thickness and the cutting positions are staggered. The amount of resin absorption is much less than that of scrim foam.	Suitable for the application with small curvature.
	Perforated Plate	Perforate holes with diameter of about 2 mm on plates. You can adjust the diameter of holes according to the thickness and density of the core material. Trapped air formed in the process of lamination can be removed from the bottom of the core material by perforating holes. Also, the resins can flow from one side of the core material to the other side.	Suitable for hand lay-up, vacuum infusion, compression molding process to improve the adhesive strength.
	Slotted Plate	Guide slots are set on the plate surface. Guide slots can be disposed in length or width direction on one side or both sides of the plate. The groove(s) can work as the flow path of resins and can remove the trapped air when using the resin vacuum infusion lamination process.	Suitable for vacuum infusion and compression molding process to produce products with large area.
	Slotted Perforated Plate	20mm. On the basis of slotted plates, perforate holes with a diameter of 2 mm in the slots that the spacing between every two is 20 mm in the length or the width direction of the plate.	It has features of the two above core materials, suitable for vacuum infusion, compression molding and vacuum bagging process to produce large-scale products.

The expandable curved surface here refers to the plane that can be expanded to become a curved surface. When using a hyperbolic plate or scrim plate, the deformation of foam core materials takes place by adhesion of the two sides.
Hand lay-up is a simple, effective process. The molding can be achieved by single-face mold or room temperature curable resin in this method. Reinforcing materials are generally in the form of chopped strand mat or directional fiber fabric such as woven roving. The processing steps are quite simple. But this method is only one face to have a smooth appearance. Besides, it is limited to the immeasurability of the member thickness, fiber content, porosity or apparent mass of the back side.
Compression molding is a method of molding using heat and pressure in a closed mold cavity. It is characterized by smooth sides and precise control of thickness, mass and fiber content. But the process should be performed with negative-positive mold, so that the process cost is relatively high.
Resin infusion is the process that one kind or more liquid resin is injected into the closed mold cavity by pressure. The required pressure in the mold cavity can be realized by vacuum (vacuum assisted impregnation), gravity or with the help of exhaust pump or pressure vessel. Generally, vacuum is provided to assist the injection of resin in the common vacuum assisted injection technique. The realization of it is via single-face mold with the other side covering vacuum bags.

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