Synthetic Polyisoprene Electrical Insulation Gloves
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Solution Overview
Problem
Conventional protective gloves for high voltage work made from natural rubber or latex are uncomfortable, have limited insulation capabilities, and contain harmful substances that can cause allergies, with production processes being environmentally harmful and inefficient.
Innovation Solution
The method involves using synthetic polyisoprene emulsion for coagulation on molds, followed by vulcanization and halogenation to create electrical insulation products that are free from ammonium and proteins, offering improved comfort and ecological production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If natural rubber or latex is used to produce protective gloves, then adequate protection against electric shocks is provided, but the gloves are thick-walled, rigid, and offer little wearing comfort
Solution Approach 1:
The patent changes the material parameter from natural rubber/latex to synthetic polyisoprene, which has different physical properties including lower modulus of elasticity, providing both adequate electrical insulation and improved flexibility and comfort for the wearer
Solution Approach 2:
The patent uses composite material composition with synthetic polyisoprene combined with specific additives and coagulants to achieve optimal balance between electrical insulation properties and mechanical flexibility, creating a material that satisfies both protection and comfort requirements
2Reliability
If natural rubber is used to produce protective gloves, then adequate protection is provided, but the production process uses highly toxic and environmentally harmful solvents and is energy-intensive
Solution Approach 1:
The patent extracts and eliminates the harmful toluene solvent from the production process by using an alternative coagulation method with calcium chloride solution, thereby removing the toxic substance while maintaining the essential function of glove production
Solution Approach 2:
The patent introduces calcium chloride solution as an intermediary substance to replace toluene in the coagulation process, serving as a non-toxic mediator that achieves the same technical effect (coagulation of rubber latex) without the harmful environmental and health impacts
3Quantity of substance
If natural latex is used to produce protective gloves, then production cost is lower, but the process is slow and product properties are inferior with high reject rate
Solution Approach 1:
The patent changes the chemical composition parameters of the latex by using synthetic polyisoprene with controlled molecular structure and purity, which improves coagulation speed and product consistency, thereby increasing productivity and reducing reject rates while maintaining cost-effectiveness
4Ease of manufacture
If natural rubber or latex is used to produce protective gloves, then production is feasible, but the products contain proteins and residues that can lead to allergies
Solution Approach 1:
The patent extracts and removes proteins and allergenic residues from the glove material by using synthetic polyisoprene as a protein-free alternative to natural latex, eliminating the harmful substances while preserving the essential manufacturing capabilities
Solution Approach 2:
The patent adopts synthetic polyisoprene, a synthetic polymer that can be produced without proteins, replacing natural latex to create hypoallergenic gloves that are safe for users with latex allergies, maintaining production feasibility while eliminating allergens
5Reliability
If natural rubber gloves are used, then adequate insulation is provided, but the ability to insulate in a moisturous environment is limited
Solution Approach 1:
The patent changes the material parameters by using synthetic polyisoprene with specific molecular structure and hydrophobic properties, which maintains electrical insulation capabilities while improving resistance to moisture degradation, thereby enhancing adaptability in humid and moisturous environments
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The synthetic polyisoprene products provide superior electrical insulation, mechanical strength, and comfort while being free from allergens and environmentally harmful substances, meeting and exceeding safety standards with a longer product life.
Implementation Method 1
a synthetic polyisophrene emulsion is used to form a layer by coagulation on a mold
Implementation Method 2
the resulting molded body is vulcanized
Implementation Method 3
made salt-free, pH-neutral and supple with respect to the body skin by washing, leaching and halogenation
Data Source
AI summary
According to this procedure, these steps are made:a) immersing a shaped mold (4) in a dipping process in a liquid synthetic polyisoprene (IR) (synthetic latex), wherein the shaped mold (4) has previously been treated with coagulation agent (coagulants) or thermally treated,b) after the immersion, the synthetic polyisoprene layer is left on the shaped mold (4) and is freed from all salts with water,c) thereafter, the synthetic polyisoprene layer together with the shaped mold (4) is vulcanized in an oven,d) the synthetic polyisoprene layer is removed from the mold (4),e) the salts precipitated by the vulcanization on the synthetic polyisoprene molded body (11) are washed off with water and a chlorine-containing solution,f) the synthetic polyisoprene molded body (11) is halogenated to neutralize its pH and to increase its suppleness in contact with body skin with a halogenating solution,g) the synthetic polyisoprene molded body (11) is dried. The electro-protective gloves thus produced are much more comfortable to wear, provide better insulation, even with thinner wall thickness, and they are more durable.