Yancheng boss food-grade plastic complaints yancheng boss food-grade plastic complaints so smell not a substance, but the process of interaction between material (
From baidu encyclopedia)
Packing books with used for pressure sensitive adhesive polymer can be natural rubber, butyl rubber, butyl rubber, also can be all kinds of resin, acrylic resin
, silicone, fluorine resin, etc.
This kind of resin is the main components of the production of hot melt adhesive, the proportion of basic resin, quality determines the basic properties of the hot melt adhesive, (
Such as adhesive bonding ability, melting temperature and the cohesive strength)
18 - generally choose the VA content
33, refers to (
800, VA content is low, the higher the degree of crystallinity increase hardness, same case VA content, low crystallinity increase elasticity, EVA melt refers to the choice is very important also, investment refers to the smaller illiquid strength high melting temperature of the adhesive wetting and permeability is quite poor.
Appearance white granular pale yellow flakes yancheng boss food-grade plastic complaints can test result is pressure sensitive adhesive stick 5 ball.
Tackifier viscosifier is the main assistant EVA hot melt adhesive.
Melting point (
84, 65 -
Yancheng boss food-grade plastic 78 complaints of its advantage is: many varieties, environmental protection, low prices.
Water-based glue process features all landowners capacity of about 500 ml of plastic bowl, and equipped with a suitable cover to dress up the glue;
(1) using water-based glue, in line with the shoe industry, a long-term trend in brands actively, water-based adhesive
has been widely used all kinds of shoe factory, water-based glue quality gradually progress and stability;
Today before each add glue to the bowl, should finish the previous glue used;
Appeared to styrene thermoplastic elastomer, such as poly (
Or poly (
As the main body, and the viscosity resin and preparation of mineral oil heating blend hot melt pressure sensitive adhesive.
The viscosity of 2500 -
3500, 5500 -
Four 6500 claims of yancheng boss food-grade plastic, polyurethane hot melt adhesive machine daily operation safety precautions: you may need to know about 5 gallons moisture reactive polyurethane hot melt adhesive machine 6, remove or move pur moisture protection device of reactive polyurethane hot melt adhesive machine or replace manager components before, must first cut off power supply.
Too much instead of molten refers to its low melting temperature of the glue, liquidity is good but lower bond strength.
Shape to the points: can be divided into hot melt colloidal particles, hot melt adhesive stick, hot melt adhesive, hot melt glue, hot melt glue powder, etc.
Sticky: hot melt adhesive sticky points late early viscosity and viscosity.
Hardness is 78 -
82, 65 -
75 generally select paraffin wax, microcrystalline wax.
Yancheng boss food-grade plastic complaints gas is gas, volatile matter, it is a substance that is usually small molecules, so easy to turn into gas.
To join the softening point of low viscosity regulator, can achieve good bonding when penetrating, stick to the purpose.
Nowadays, it is very common for us to utilise in chemical factory. And the quality of is decisive to production efficiency.
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