Dongguan pe plastic bags to analyze the physical and chemical properties of various packaging bags have any advantages?
This PE plastic Septic Tank is specially designed to replace the fibreglass septic tank. It is light in weight but strong in structure. It is made by one time molding without welding and bonding. It can be produced in different colors as per your need. It can also be done with different wall thickness.
Dongguan pe plastic bags to analyze the physical and chemical properties of various packaging bags have any advantages?
Looking for quality and reasonable price of plastic bags for you to recommend Yixin in Dongguan, Dongguan Yixin Plastic Bag Factory is a professional production and supply of PE plastic bags, PO plastic bags, PVC, OPP plastic bags, shielding bags, anti-static plastic bags Manufacturers of packaging products, plant area of ​​1,000 square meters, is located beside Wanzhang Road, convenient transportation. The products are mainly used in the packaging of industrial products. The customers mainly include electronics factory, hardware factory, plastic toy factory, furniture factory, hardware screw factory and jewelry factory.
Physical and chemical properties of PE plastic bag packaging:
PE plastic is polyethylene plastic, with corrosion resistance, electrical insulation (especially high frequency insulation), mortgage polyethylene is suitable for making corrosion-resistant parts and insulation parts; high-pressure polyethylene is suitable for film production; ultra-high molecular weight polyethylene Suitable for making shock absorption, wear and transmission parts.
1) PE physical and chemical properties: PE packaging bags
Material properties Corrosion resistance, electrical insulation (especially high frequency insulation) is excellent, can be chlorinated, irradiated modified, can be reinforced with glass fiber. Low melting polyethylene has high melting point, rigidity, hardness and strength, and low water absorption. Good electrical properties and radiation resistance; high-pressure polyethylene has good flexibility, elongation, impact strength and permeability; ultra-high molecular weight polyethylene has high impact strength, fatigue resistance and wear resistance. Low-pressure polyethylene is suitable for production. Corrosion-resistant parts and insulating parts; high-pressure polyethylene suitable for film production; ultra-high molecular weight polyethylene suitable for shock absorption, wear-resistant and transmission parts.
2) Formability
1. Crystallized material, low moisture absorption, no need to fully dry, excellent fluidity, fluidity is sensitive to pressure, high pressure injection should be used during molding, material temperature is uniform, filling speed is fast, pressure is sufficient. It is not suitable to use direct gate to prevent shrinkage Uneven, internal stress increases. Pay attention to the location of the gate to prevent shrinkage and deformation.
2, the shrinkage range and shrinkage value is large, the direction is obvious, easy to deform and warp. The cooling speed should be slow, the mold is set with cold material points, and there is a cooling system.
3. Heating time should not be too long, otherwise decomposition and burns will occur.
4. When the soft plastic parts have shallow side grooves, they can be forced to demould.
5, the possibility of melt fracture, should not be in contact with organic solvents to prevent cracking.
3) Classification of packaging bags:
1, PE packaging bags
According to the material, it is often divided into plastic bags and composite bags.
2, plastic bags
Includes plastic woven bags and plastic film bags. The former has the characteristics of light weight, high strength, corrosion resistance, etc. After being added to the plastic film lining, it can be protected from moisture and moisture; the light bag has a load of less than 2.5kg, the medium bag has a load of 25-50kg, and the heavy bag has a load of 50-100kg. The light weight of the latter is more than 1kg; the medium bag has a load of 1-10kg; the heavy bag has a load of 10-30kg; and the container has a load of more than 1000kg.
3, composite packaging bags
Combining materials of different characteristics to improve the breathability, moisture permeability, oil resistance, water resistance and chemical resistance of packaging materials, so as to prevent insects, dust, microbes, light, fragrance and smell The odor is isolated, as well as heat resistance, cold resistance, impact resistance, better mechanical strength and processing properties, and good printing and decorative effects.
Dongguan Yixin Plastic Bag Factory specializes in producing pe plastic bags, po plastic bags, opp plastic bags, pe printing bags, anti-static bags, plastic bags, Dongguan plastic bags, Dongguan bags, opp adhesive bags, pe plaid bags, etc. Materials, welcome to inquire!
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